30results about How to "Quick extension" patented technology

The invention relates to an oil-gas well fiber assisted water control fracturing method, and belongs to the technical field of petroleum extraction. The method comprises the following steps of: (1) adding a thickening agent with water control function into water with stirring, and then adding additive to obtain fracturing prepared fluid; (2) mixing a part of the fracturing prepared fluid preparedin the step (1) and fiber uniformly to obtain fracturing sand-carrying fluid; (3) adding a propping agent into the fracturing sand-carrying fluid prepared in the step (2) to obtain sand mixing fluid;and (4) pumping the rest fracturing prepared fluid prepared in the step (1) into a destination layer in an oil-gas well, and then pumping the sand mixing fluid prepared in the step (3). According to the method, the thickening agent is adopted, so functions of seam forming and sand carrying of the conventional thickening agent are obtained, and the oil (gas) water ratio in the oil-gas layer can bechanged and the permeability of the aqueous phase is greatly reduced.

The invention discloses a vehicle-mounted equipment information display method and system. The method comprises the following steps that vehicle-mounted equipment or a mobile terminal is used for sending request commands; the mobile terminal makes corresponding processing according to the request commands, corresponding data is generated, and the data is pushed to vehicle-mounted equipment after being encoded; the vehicle-mounted equipment receives data sent by the mobile terminal, resolves the data according to a set protocol, and then runs the corresponding application on the vehicle-mounted equipment according to the resolved data; a first application program shows a first interface on the mobile terminal, when the vehicle-mounted equipment runs the first application program at the same moment, a display unit displays a second interface different from the first interface on the vehicle-mounted equipment according to the data sent by the mobile terminal. The method and the system have the advantages that the applications on the vehicle-mounted equipment and the mobile terminal can realize the two-way information communication and interaction, the man-machine interaction interface of safe driving can be displayed on the vehicle-mounted terminal, and the application on the mobile terminal can be controlled, so that new application can be fast and flexibly introduced onto the vehicle-mounted terminal at low cost.

The invention discloses a mud-water shield mud pipeline extension device and an extension method. The mud-water shield mud pipeline extension device and the extension method solve the problems of inflexible use and short service life of a mud pipeline extension device in the prior art. The mud-water shield mud pipeline extension device comprises a shield machine mud hard pipe, a mud hose, a walking frame mud hard pipe and a tunnel mud hard pipe which are sequentially connected. The walking frame mud hard pipe is movably arranged on a trailer through a walking mechanism. The mud hose is movablyarranged on the trailer through a sliding part. A mud pipe crane for hoisting the mud hard pipe is arranged on the trailer. According to the mud-water shield mud pipeline extension device and the extension method, a walking frame of a simple structure is adopted and moves along the track arranged on the side face of the trailer, and the occupation of the space of the trailer is reduced; the mud hose is not in direct contact with the trailer, the outer layer of the hose does not wear, and the service life of the mud hose is prolonged. In addition, the mud-water shield mud pipeline extension device is not limited by the tunnel turning radius and is suitable for mud-water shields with the large or small diameters, the structure is simple, the operation is flexible, the application range is wide, and the maintenance is convenient.

The invention discloses a plastic electrode tube for an electroosmotic drainage method, which is characterized by comprising a conductive plastic tube, a metal wire and a conductive geotextile filtering layer; an axial or radial water guide groove is formed in the wall of the conductive plastic tube; the number of the metal wires is two at least, and the metal wires are symmetrically distributed in the tube wall of the conductive plastic tube and axially penetrate through the whole conductive plastic tube; the conductive plastic tube is enwrapped by the conductive geotextile filtering layer; drainage holes are uniformly formed in the outer wall of the conductive plastic tube at intervals. The plastic electrode tube has the advantages of simple structure, corrosion resistance, big drainage space, good mechanical property, anti-clogging and high drainage efficiency.

An oil well alloy superconducting wax and pressure-measuring and temperature-measuring device comprises a cable body and a control system, wherein the cable body penetrates into a hollow oil pumping rod; temperature sensors for measuring different depth sections of an underground wax precipitation area are distributed in the cable body; a pressure transmitter is arranged at the bottom of the cable body; the temperature sensors and the pressure transmitter are electrically connected with the overground control system through leads which penetrate into the cable body; the control system comprises a controller; the input end of the controller is connected with the temperature sensors and the pressure transmitter; a superconducting alloy wire is arranged in the cable body and is electrified with power-frequency or medium-frequency alternating current. On one hand, the oil well alloy superconducting wax and pressure-measuring and temperature-measuring device can generate high heat, can heat crude oil of the wax precipitation section in an oil pipe in the whole process, effectively prevents the crude oil in the oil pipe from being subjected wax precipitation and does not influence the service life of the cable body; on the other hand, the measuring precision of each sensor can be greatly improved.

The invention discloses a cultivating method of garden plants. The cultivating method of the garden plants comprises the following steps: S1, preliminarily culturing plant tissues for 3-6 days by using a basic culture medium in a sterile environment, and carrying out follow-up culture for 3-5 days by using an upgraded culture medium until root hairs with the length of 2-5 mm grow; S2, successively culturing the plant tissues in the S1 in a first nutrient solution, a second nutrient solution and a third nutrient solution; S3, culturing the plant tissues in S2 on a sponge with the first nutrient solution, a sponge with the second nutrient solution and a sponge with the third nutrient solution until the plant tissues become plant seedlings; S4, uniformly adding fertilizers in plant pits, carrying out bare root treatment on the plant seedlings in S3, coating the plant seedlings by using rooting liquid, transplanting the plant seedlings into the plant pits, and watering; S5, carrying out moisturizing and shading protection on the plant seedlings in S4 for 5-7 days, wherein the humidity is 85-95%, the shading degree is 65-75%, and the temperature is 23-27 DEG C; then reducing moisturizing and shading protection, wherein the humidity is 70-80%, the shading degree is 50-65%, the temperature is 23-30%, and the weight part ratios of basic nutrient solutions in the first nutrient solution, the second nutrient solution and the third nutrient solution to water are respectively 0.003-0.005: 1, 0.007-0.01:1 and 0.003-0.007:1.

The invention relates to a phellinus igniarius industrialized cut-log cultivation method. The method includes: treating logs into cut-logs uniform in specification, using a surface culture medium to pressurize, shape and coat the side faces of the cut-logs, bagging, sterilizing, and cooling; adopting a phellinus igniarius liquid strain uniform in grain size and proper in concentration to be mixedwith a semisolid culture medium in a sterile condition, directly inoculating into cut-log bacteria sticks, performing inoculated log bacteria stick culture, and emerging of phellinus igniarius. The method is short in cultivation period, low in pollution rate and good in bacteria stick fruiting synchronism, standardized quality and technical parameter control can be realized in the whole cultivation process, improving of phellinus igniarius sporocarp quality is facilitated, and mechanized, standardized, industrialized, large-scale and normalized mode development of phellinus igniarius can be promoted vigorously.

The invention discloses a seedling growing method capable of improving disease resistance. The seedling growing method comprises the following steps that rice straw, corn straw and pine branches are burned to obtain ash, then sand and clay are added, even mixing is carried out, and granulating is carried out to obtain pre-made seedling soil; sodium carboxymethylcellulose, microcrystalline cellulose, vegetable oil and water are stirred evenly, anhydrous ethanol and sepiolite are added, and even stirring is carried out to obtain a binder; the pre-made seedling soil is rolled and preheated to 50-60 DEG C, then the binder is sprayed onto the surfaces of particles of the pre-prepared seedling soil, even stirring is carried out, drying is carried out at 100-110 DEG C until the water content is 4-10wt%, and composite seedling soil is obtained; the robust branches are cut into cuttings with 2-3 axillary buds, the upper ends of the cuttings are cut flat, the lower ends of the cuttings are cut to 45 degrees, then lower end cuts are soaked with clear water, and then the lower end cuts are soaked in a rooting agent after disinfected; and the treated cuttings are vertically stuck in the composite seedling soil for planting cultivation, the environment temperature is 20-24 DEG C, the environmental humidity is 65-70%, and the seedlings are taken out of a nursery.

The invention belongs to the technical field of buildings and particularly relates to a connector for lengthening prestressed steel bars and a construction method thereof. The connector is characterized in that a plurality of steel bar holes axially penetrating through a body are formed in the body in the circumferential direction; the outer edge at the upper part of the body is uniformly provided with a plurality of opening grooves for installing the prestressed steel bars along the circumferential direction; the steel bar holes positioned in the upper part of the body are conical holes; the conical holes are internally provided with clamping pieces for locking the prestressed steel bars; the lower ends of the opening grooves are provided with anchoring rings which are internally provided with the conical holes; the conical holes are internally provided with the clamping pieces for locking the prestressed steel bars in a matching manner. The construction method comprises the steps of anchoring one end of each of one group of prestressed steel bars into the steel bar holes by the clamping pieces, and stretching and drawing the other ends of the prestressed steel bars; (2) enabling one end of each of another group of prestressed steel bars to penetrate through the opening grooves to be arranged in the conical holes of the anchoring rings by the clamping pieces, and stretching and drawing the other ends of the prestressed steel bars; and (3) grouting on the end provided with the connector. The connector has the advantages that the lengthening of the prestressed steel bars can be fast and conveniently realized and the connecting efficiency is greatly improved.

The invention discloses a magnetic 3D gel guide pipe for repairing nerve defects and a preparation method and application thereof. The magnetic 3D gel guide pipe is prepared from the following components in parts by weight: 97-99 parts of an alginic acid / chitosan mixture, 0.8-1.5 parts of Fe3O4 and 0.8-1.5 parts of GO, the magnetic 3D gel guide pipe is of a spiral structure, the screw pitch is 30[mu]m-60[mu]m, the inner diameter of the guide pipe is 1mm-8mm, and the outer diameter of the guide pipe is 2mm-10mm. The preparation method of the magnetic 3D gel guide pipe comprises the following steps that a spinning solution is prepared, specifically, the alginic acid / chitosan mixed solution, a Fe3O4 dispersion solution and a GO dispersion solution are mixed, and normal-temperature ultrasonictreatment is carried out to obtain a spinning solution; and the magnetic 3D gel guide pipe is prepared, the spinning solution is pumped into a micro-fluidic chip from a main liquid phase inflow channel, a calcium chloride solution and absolute ethyl alcohol are pumped into the micro-fluidic chip from different auxiliary liquid phase channels, the pumping speeds of the spinning solution, the calcium chloride and the absolute ethyl alcohol is adjusted, and the magnetic 3D gel guide pipe is prepared. According to the magnetic 3D gel guide pipe for repairing the nerve defects and the preparation method and application thereof, a microfluidic technology is adopted, and the prepared guide pipe can safely and effectively promote rapid repair of peripheral nerve defects.

The invention relates to a temperature-sensitive polymer, a foam fracturing fluid and a preparation method and application thereof. The temperature-sensitive polymer comprises a structural unit A, a structural unit B, a structural unit C and a structural unit D derived from a hydrophobic monomer. The temperature-sensitive polymer has lower viscosity at the normal temperature, the viscosity is notreduced but is greatly increased at the relatively increased temperature of a stratum, and meanwhile, the temperature-sensitive polymer has a very good foam stabilizing performance. The foam fracturing fluid is good in component compatibility, foaming and sand carrying performance and high in fracture forming efficiency, the viscosity is increased along with temperature rise, and the foam fracturing fluid also has a temporary plugging function, and has wide application prospects in oil field exploitation, especially in a repeated fracturing technology.

The invention discloses an underground pressure-and-temperature-measurement cable. Temperature sensors for measuring different underground depth sections are distributed in a cable body; a pressure transmitter is also arranged at the bottom of the cable body, and the temperature sensors and the pressure transmitter are electrically connected with a measuring and controlling meter on a well through all wires penetrating through the cable body. The underground pressure-and-temperature-measurement cable is simple in structure and easy and convenient to install, signal interference between all temperature signals and signal interference between temperature signals and pressure signals can be effectively avoided, and the measuring accuracy of all the sensors is greatly increased; site managing and controlling are not required, time and labor are saved, and unattended operation is achieved.

The invention relates to the technical field of cement production, in particular to a transport device for cement production. The device comprises a conveyor belt, an outer cover, a square cylindricalslide rail, a funnel housing and a control board, the gate-shaped outer cover in a bent plate shape is arranged at the upper end of the conveyor belt, the upper end of the outer cover is fixedly connected with the slide rail, the slide rail penetrates through a shell of the outer cover, the upper end of the slide rail is fixedly connected with the funnel housing, one side of the slide rail is fixedly connected with the control board, and the control board penetrates through a shell of the slide rail. The structural design of the device achieves that falling materials in the slide rail drive asquare plate to rotate, the square plate is intercepted by a clamping block, and the rotation speed of the square plate can be controlled, so that excessive materials are prevented from falling on the conveyor belt, the stable conveying work of the conveyor belt is ensured, wrench tools can be used to turn a control rod to directly adjust the expansion frequency of a telescopic column and the clamping block, and the rotation speed of the square plate is directly changed.

The invention discloses a news media data recommendation management system based on artificial intelligence, and belongs to the field of news media. In the working process of a server body, firstly, a circulating device drives cooling water to circularly flow and drives a heat removal fan to carry out heat dissipation treatment, and along with continuous heat dissipation, the temperature of the cooling water rises; the deformation memory spring extends to drive the material storage bag to be punctured by the spine, so that ammonium chloride powder and barium hydroxide octahydrate powder are mixed to react and absorb heat for cooling, heat absorption and cooling of cooling water are facilitated, and meanwhile, ammonia gas is generated to be blown into the elastic telescopic flat bag to extend and push the cleaning brush body to move, so that dust on the surface of the dustproof net is cleaned; and vibration generated when the circulating device and the heat extraction fan work is transmitted into the arc-shaped frame, collision small balls collide and rub to generate static electricity, dust is adsorbed and collected through the cooperation of the electrostatic adsorption capacity and the superfine fiber layer, air circulation is facilitated, the heat extraction effect of the heat extraction fan is enhanced, and work of the server body is facilitated.

The invention discloses a plastic electrode tube for electroosmotic drainage, which is characterized in that it comprises: a conductive plastic tube, a metal wire and a conductive geotextile filter layer, and the conductive plastic tube wall is provided with axial or radial There are at least two metal wires, the metal wires are distributed in the wall of the conductive plastic pipe and axially run through the entire conductive plastic pipe, the conductive geotextile filter layer wraps the conductive plastic pipe, and the conductive geotextile Drainage holes are evenly spaced on the outer wall of the plastic pipe. The invention has the advantages of simple structure, corrosion resistance, large drainage space, good mechanical properties, anti-silting and high drainage efficiency.

An oil well alloy superconducting wax and pressure-measuring and temperature-measuring device comprises a cable body and a control system, wherein the cable body penetrates into a hollow oil pumping rod; temperature sensors for measuring different depth sections of an underground wax precipitation area are distributed in the cable body; a pressure transmitter is arranged at the bottom of the cable body; the temperature sensors and the pressure transmitter are electrically connected with the overground control system through leads which penetrate into the cable body; the control system comprises a controller; the input end of the controller is connected with the temperature sensors and the pressure transmitter; a superconducting alloy wire is arranged in the cable body and is electrified with power-frequency or medium-frequency alternating current. On one hand, the oil well alloy superconducting wax and pressure-measuring and temperature-measuring device can generate high heat, can heat crude oil of the wax precipitation section in an oil pipe in the whole process, effectively prevents the crude oil in the oil pipe from being subjected wax precipitation and does not influence the service life of the cable body; on the other hand, the measuring precision of each sensor can be greatly improved.

The invention discloses an intelligent hotel management and control system based on the Internet of Things, which includes a shell. The shell is embedded in the wall surface of a bed head; two sides of the inner bottom of the shell are fixed with connectors; a vertical plate is placed on the connector; sliders fixed at two bottom sides of the vertical plate are located in the connector; the centerof the lower surface of the shell is provided with a through hole; a box body is fixed below the shell; a drawer is inserted in the box body; the edge inside the drawer is fixed with a support block;a filter net is placed on the support block; an operation interface is embedded in the front of the vertical plate; a circuit board is embedded in the back of the vertical plate; and the circuit board is provided with a lighting module, an air-conditioning module and a TV module. According to the intelligent hotel management and control system based on the Internet of Things disclosed in the invention, all the needs of guests during lodging can be met, and in the process of supplying power to resting guests, the resting guests can be prevented from being disturbed by guests going out, and absolute safety during the operation process can be ensured.

The invention discloses a constructional engineering contract labor work planning system, which belongs to the field of constructional engineering, and is characterized in that when an unmanned investigation device cooperates with a camera to investigate information and the reflection amount of infrared light emitted by an infrared monitor and received by an infrared receiver is increased, the infrared light is fed back to the unmanned investigation device to make the unmanned investigation device perform obstacle avoidance processing, and meanwhile, the temperature of the infrared receiver is increased; the carbon dioxide aqueous solution is stirred by the deformation memory stirring piece, the extrusion plate and the stirring rod are extruded to stir the carbon dioxide aqueous solution, so that carbon dioxide overflows into the telescopic air bag and extends to be in contact with each other to form a protection layer, and meanwhile, hot air is extruded to be sprayed onto the telescopic air bag through the movable spraying bottle nozzle, so that the carbon dioxide is heated to expand and is driven to fully extend; meanwhile, the deformation memory spring is heated to shrink, the magnetism-insulating balloon is pulled to be stretched, the magnetism-insulating powder is dispersed, shielding of the magnetic balls is eliminated, the two attraction hemispheres are driven to make contact with each other under the action of opposite attraction, a protection transverse bar is formed in cooperation with the elastic heat conduction rope, and the buffering effect is enhanced.

The invention relates to an oil-gas well fiber assisted water control fracturing method, and belongs to the technical field of petroleum extraction. The method comprises the following steps of: (1) adding a thickening agent with water control function into water with stirring, and then adding additive to obtain fracturing prepared fluid; (2) mixing a part of the fracturing prepared fluid preparedin the step (1) and fiber uniformly to obtain fracturing sand-carrying fluid; (3) adding a propping agent into the fracturing sand-carrying fluid prepared in the step (2) to obtain sand mixing fluid;and (4) pumping the rest fracturing prepared fluid prepared in the step (1) into a destination layer in an oil-gas well, and then pumping the sand mixing fluid prepared in the step (3). According to the method, the thickening agent is adopted, so functions of seam forming and sand carrying of the conventional thickening agent are obtained, and the oil (gas) water ratio in the oil-gas layer can bechanged and the permeability of the aqueous phase is greatly reduced.

The invention discloses an underground pressure-and-temperature-measurement cable. Temperature sensors for measuring different underground depth sections are distributed in a cable body; a pressure transmitter is also arranged at the bottom of the cable body, and the temperature sensors and the pressure transmitter are electrically connected with a measuring and controlling meter on a well through all wires penetrating through the cable body. The underground pressure-and-temperature-measurement cable is simple in structure and easy and convenient to install, signal interference between all temperature signals and signal interference between temperature signals and pressure signals can be effectively avoided, and the measuring accuracy of all the sensors is greatly increased; site managing and controlling are not required, time and labor are saved, and unattended operation is achieved.

The invention provides a gravity-type upright retaining wall structure, which includes a wall body, a through pipe is arranged inside the wall body, a deceleration plate is arranged inside the through pipe, a deceleration block is provided at one end of the deceleration plate, and a rotating One end of the rotating plate is provided with a rotating ball, one side of the rotating ball is provided with a spring, one side of the rotating plate is embedded with a rotating groove, and one end of the rotating plate is provided with a lower docking frame. When gravity causes the rotating plate to rotate, the rotating plate can drive the gear to move vertically, and the gear can drive the pulley to rotate, so that the pulley can drive the extension plate to move horizontally, and the gear can move up and down repeatedly. , the friction force between the gear and the pulley can be reduced when the gear moves downward through the through block.

According to the method, the hollow cylindrical plastic pipe fitting is selected, the liquid culture medium is added into the hollow part, and the two ends of the plastic pipe fitting are filled with the solid culture medium to prepare the mushroom sticks, so that the phellinus igniarius sporocarp is cultured, and the defects of wood waste and long growth period of the solid culture medium and insufficient nutrition, easy infection and high cost of the liquid culture medium are avoided; the culture medium integrates the advantages of a solid culture medium and a liquid culture medium, the mushroom stick is easy to manufacture and low in cost, the probability of scratching a mushroom bag can be reduced, pollution can be avoided, and a good foundation can be provided for the standardized cultivation process of phellinus igniarius. According to the technological process, standardized quality and technical parameter management and control can be achieved, and a mechanical, standardized, industrialized, large-scale and standardized artificial cultivation mode of phellinus igniarius can be achieved.

The invention discloses a news media data recommendation management system based on artificial intelligence, which belongs to the field of news media. During the operation of the server body, firstly, a circulating device is used to drive the circulating flow of cooling water and a heat exhaust fan to conduct heat dissipation, and with the continuous heat dissipation, The temperature of the cooling water increases, so that the deformation memory spring extends to drive the storage bag down to be punctured by the spikes, so that the ammonium chloride powder and the barium hydroxide octahydrate powder are mixed and reacted to absorb heat and cool down, which is convenient for the endothermic cooling of the cooling water. At the same time, ammonia gas is generated and is blown into the elastic telescopic flat bag to make it extend, push the movement of the cleaning brush body, clean the dust on the surface of the dust filter, and the vibration generated by the circulation device and the heat exhaust fan is transmitted to the arc. Inside the frame, the colliding balls collide and rub to generate static electricity, and the electrostatic adsorption capacity cooperates with the microfiber layer to absorb and collect dust, which is convenient for air circulation, enhances the heat removal effect of the heat exhaust fan, and facilitates the work of the server body.

The invention discloses a buckle connecting quick-blocking plate which comprises straightly arranged and connected sheets (5), wherein every two adjacent sheets (5) are hinged to each other, so that a track form is integrally formed; a hole is formed between every adjacent sheets (5) and a sleeve ring penetrates through the hole so as to connect the adjacent sheets (5); a rubber film is attached to one side of the whole connected sheets (5) in the track form while a cover surface is attached to the other side of the whole connected sheets (5); a rubber sealing pad is fitted with the outer side of the cover surface; the rubber film extends to form a flange sealed with an edge of a sheet from the outer edge of the sheet; thin strong magnetic slice pairs are respectively fitted with the horizontal outer sides of the two ends of the sheets (5); a cable (4) is bonded on one side of each sleeve ring on the cover surface; the cable (4) passes through the cover surface. The buckle connecting quick-blocking plate provided by the invention is used for repairing and blocking a leaking point on the outer side of a ship board of a marine ship. The force flowing from the leaking point can be utilized to more tightly block, so that the purpose of reliably and quickly blocking holes and gaps is achieved.

The invention discloses an intelligent hotel management and control system based on the Internet of Things, which includes a shell. The shell is embedded in the wall surface of a bed head; two sides of the inner bottom of the shell are fixed with connectors; a vertical plate is placed on the connector; sliders fixed at two bottom sides of the vertical plate are located in the connector; the centerof the lower surface of the shell is provided with a through hole; a box body is fixed below the shell; a drawer is inserted in the box body; the edge inside the drawer is fixed with a support block;a filter net is placed on the support block; an operation interface is embedded in the front of the vertical plate; a circuit board is embedded in the back of the vertical plate; and the circuit board is provided with a lighting module, an air-conditioning module and a TV module. According to the intelligent hotel management and control system based on the Internet of Things disclosed in the invention, all the needs of guests during lodging can be met, and in the process of supplying power to resting guests, the resting guests can be prevented from being disturbed by guests going out, and absolute safety during the operation process can be ensured.

The invention discloses a self-weight adaptive curved surface heat conduction yoga wheel, which mainly relates to the field of yoga equipment. The wheel comprises a yoga wheel, an automatic adjustingmechanism and a heating mechanism, wherein the automatic adjusting mechanism comprises a sliding table bottom plate, a shell body and a counterweight piece; the sliding table bottom plate is connectedto the inn wall of the inner ring of the yoga wheel and can slide along the circumferential direction of the inner ring of the yoga wheel; the shell body is fixed on the sliding table bottom plate; the counterweight piece is arranged at the center of the inner bottom of the shell body; the counterweight piece is used for keeping the automatic adjusting mechanism vertical relative to the yoga wheel; the heating mechanism is arranged at one end of the shell body far away from the sliding table bottom plate; one end of the heating mechanism far away from the sliding table bottom plate is arranged on the arc surface suitable for the inner ring of the yoga wheel; and a heating piece is mounted in the arc surface, so that the arc surface can provide a heating temperature of 40-79 DEG C. The wheel has the advantages that the arc surface can heat a stretching area of an exerciser through the yoga wheel, and thus the wheel can help the muscles to relax and extend rapidly to enter into a betterstate.

The invention provides a waist line measuring method for an underground roadway. The method comprises the following steps: step 1, obtaining an elevation difference deltaH between two points A and B; step 2, calculating the gradient between the point A and the point B; and step 3, according to the obtained gradient, measuring the elevation difference deltaH between the two points A and B and the distance SC-D between the two points C and D so as to calculate the elevations of the two points A and B in the roadway. By means of the method, the roadway tunneling and foundation construction waist line can be rapidly and accurately extended, the cutting amount of machine head chamber large-section roadway tunneling construction is reduced, labor input during tunneling is reduced, and tunneling construction efficiency and tunneling construction quality are improved.