Construction method suitable for ultra-deep vertical shaft lining structure of high-pressure water-rich railway

Abstract

The invention discloses a construction method suitable for a high-pressure water-rich railway ultra-deep vertical shaft lining structure, and belongs to the technical field of railway construction, and the construction method comprises the following specific steps: S1, drilling a hole in the bottom of a vertical shaft, burying explosive, hoisting a supporting hanging scaffold to a safe position far away from the bottom of the vertical shaft, and starting the explosive; s2, the supporting hanging scaffold is conveyed to the well bottom through a hoisting device; s3, the exploded gangue is placed in a bearing bucket; s4, the bucket containing the gangue is hoisted to the outside of the vertical shaft to be discharged and then hoisted to the bottom of the vertical shaft again; s5, after gangue discharging is completed, water permeating into the vertical shaft is pumped through a water pump; s6, the shaft bottom of the vertical shaft is cleaned, and the steel corrugated pipe is installed; s7, after the forming formwork is lowered, concrete pouring is conducted; and S8, after cooling, forming treatment of one shaft section is achieved. The waterproof structure has the effects that the waterproof performance of the shaft section after construction is completed is improved, and then the service life of the shaft section is conveniently guaranteed.

Description

Technical Field

[0001] The invention relates to the field of railway construction, and in particular to a construction method suitable for an ultra-deep vertical shaft lining structure of a high-pressure water-rich railway. Background Art

[0002] Setting up vertical shafts during tunnel construction is a necessary task. Vertical shafts can provide ventilation and channels for discharging debris for construction, provide convenient channels for monitoring and measurement, and ensure the safety and stability of the tunnel. At the same time, vertical shafts can also serve as escape routes and important facilities for construction management, improving construction efficiency and quality.

[0003] During the construction of the vertical shaft, the lock mouth is usually constructed, that is, the ground is excavated first, and after excavation to the preset depth of the lock mouth, mortar is laid and steel bars are tied. A lock mouth template is set up outside the tied steel bars and poured and condensed to realize the construction of the lock mouth. Subsequently, the lock mouth template is removed and the excavated area outside the lock mouth is backfilled before the shaft section is constructed from the lock mouth.

[0004] The process of the shaft section is mainly to carry out drilling in the shaft body, lift and discharge the drilled gangue through a bucket, tie the steel bars at the shaft after discharge, install the formwork and pour the concrete, and remove the formwork after condensation to form one section of the shaft. Multiple sections of the shaft are constructed in sequence until the lining construction of the shaft is completed at the designed depth.

[0005] With regard to the above-mentioned prior art, when faced with high-pressure, water-rich geology, the moisture in the stratum after the construction of one section of the wellbore is easily caused to erode the wellbore section. The waterproof performance of the wellbore section after construction is poor, which is not convenient for ensuring the service life of the wellbore section. Summary of the invention

[0006] In order to improve the waterproof performance of the shaft section after the construction is completed, and thus facilitate to ensure the service life of the shaft section, the present application provides a construction method suitable for the ultra-deep vertical shaft lining structure of high-pressure and water-rich railway.

[0007] The present application provides a construction method for a high-pressure water-rich railway ultra-deep shaft lining structure using the following technical solutions: A construction method for an ultra-deep shaft lining structure for a high-pressure water-rich railway includes the following specific steps: S1, drilling a hole at the bottom of the shaft and burying explosives, and then lifting a support plate to a safe position away from the bottom of the shaft by a lifting device to detonate the explosives; S2, after eliminating the danger, transporting the support plate to a position close to the bottom of the shaft by a lifting device; S3, placing the blasted gangue in a receiving bucket by a central rotary rock grabber arranged at the bottom of the support plate; S4, lifting the bucket containing the gangue to the shaft After being discharged outside, it is hoisted to the bottom of the shaft again; S5, repeating steps S3 and S4, after the gangue after blasting in the bottom of the shaft is discharged, the water seeping into the shaft is pumped out by a water pump; S6, cleaning the bottom of the shaft and opening the under-excavated part, and installing the steel corrugated pipe after reaching the preset size; S7, after tying the steel bars in the bottom of the shaft, lowering the forming formwork and pouring concrete into the surrounding area of ​​the forming formwork and the steel corrugated pipe; S8, after cooling, the forming process of one of the shaft sections is completed.

[0008] By adopting the above technical scheme, after the construction of the shaft section is completed, the steel bellows located on the outside of the shaft section plays a role in blocking the moisture in the formation, so that the moisture is not easy to cause erosion to the shaft section, which is beneficial to ensure the waterproof performance of the shaft section and the service life of the shaft section. In addition, the method of constructing the vertical shaft by drilling holes and burying explosives during the construction of the shaft section is conducive to adapting to different types of rocks and complex geological conditions, making the construction more flexible and adaptable.

[0009] Optionally, the steel corrugated pipe in step S6 is distributed in multiple layers along the vertical direction, and each layer of the steel corrugated pipe includes multiple corrugated pipe bodies distributed circumferentially around the axis of the shaft. The corrugated pipe bodies of each layer are staggered, and a water stop strip is provided between two adjacent corrugated pipe bodies.

[0010] By adopting the above technical scheme, the staggered arrangement of the corrugated pipe bodies is conducive to ensuring the overall strength of the steel corrugated pipes after installation, and has strong shear resistance. The setting of the water stop strip is conducive to further ensuring the sealing between the two adjacent corrugated pipe bodies, making it difficult for moisture to penetrate through the gap between the two adjacent corrugated pipe bodies.

[0011] Optionally, a plurality of groups of positioning anchor rods corresponding one-to-one with the corrugated tube bodies are provided in the vertical shaft body, and each group of the positioning anchor rods is provided with a plurality of positioning anchor rods, and the corrugated tube body is provided with positioning holes corresponding one-to-one with each group of positioning anchor rods and plug-matched with each positioning anchor rod; the two adjacent corrugated tube bodies in each layer are provided with a first tube body and a second tube body, and tube body positioning parts are convexly provided on both sides of the first tube body, and tube body positioning grooves corresponding to the tube body positioning parts and plug-matched with the tube body positioning parts are concavely provided on both sides of the second tube body.

[0012] By adopting the above technical scheme, the setting of the positioning anchor rod plays a role in positioning the corrugated tube body during installation, which makes it convenient for the corrugated tube body to be quickly installed to the specified position. At the same time, the first tube body is installed first and then the second tube body during installation. The cooperation between the tube body positioning part and the tube body positioning groove makes it difficult for the first tube body and the second tube body to interfere with each other during installation, which is conducive to further improving the installation accuracy of the corrugated tube body.

[0013] Optionally, after the steel bellows is installed, a polymer material is grouted between the steel bellows and the shaft wall.

[0014] By adopting the above technical scheme, the polymer material has excellent chemical stability and corrosion resistance, which is convenient for effectively resisting erosion and damage from the external environment, thereby facilitating further realizing the protective effect on the steel corrugated pipe and ensuring the waterproof performance of the steel corrugated pipe.

[0015] Optionally, the forming template in step S7 has four pouring ports evenly distributed circumferentially around its own axis, and concrete is poured into the forming template through a concrete distributor and pipes corresponding to the pouring ports and connected to the concrete distributor.

[0016] The adoption of the above technical solution is conducive to ensuring the uniformity of concrete when it is poured into the forming template, thereby facilitating the guarantee of the structural strength of the concrete after final forming.

[0017] Optionally, the forming template in step S7 includes a plurality of forming plates distributed circumferentially around the shaft axis, two adjacent forming plates are fixed by bolts, and a reinforcing rib is provided on one side of each forming plate facing the shaft axis.

[0018] By adopting the above technical solution, the setting of reinforcing ribs is conducive to ensuring the overall structural strength of the forming template, and the setting of each forming plate body facilitates the production and assembly of the forming template, and also facilitates the subsequent inspection and maintenance of the forming template.

[0019] Optionally, a reinforcement component is provided on one side of one of the forming plates facing the axis of the shaft, and the reinforcement component includes a reinforcement sleeve, a reinforcement rotating cylinder and a reinforcement screw. The reinforcement sleeve is rotatably installed on one of the forming plates, and the reinforcement rotating cylinder is coaxially rotatably installed on the reinforcement sleeve. The reinforcement screw is passed through the reinforcement rotating cylinder and cooperates with the reinforcement rotating cylinder thread. The reinforcement sleeve is provided with a reinforcement limiter for limiting the rotation of the reinforcement screw.

[0020] By adopting the above technical solution, when the reinforcement sleeve is rotated to a horizontal state and force is applied to rotate the reinforcement rotating cylinder, the reinforcement screw cooperates with the thread of the reinforcement rotating cylinder and moves in a direction closer to or away from the reinforcement sleeve under the limiting action of the reinforcement limiter. When one end of the reinforcement screw is pressed against the other forming plate, it is beneficial to further ensure the stability of the position of the forming template.

[0021] Optionally, the reinforcement limiter comprises a reinforcement limit portion fixedly mounted in a reinforcement sleeve, a reinforcement limit groove extending along the axial direction of the reinforcement screw is provided on the outer side of the reinforcement screw, and the reinforcement limit portion is slidably fitted in the reinforcement limit groove.

[0022] By adopting the above technical solution, the cooperation between the reinforcement limiting part and the reinforcement limiting groove makes the limiting structure of the rotation of the reinforcement screw simple, convenient and stable.

[0023] Optionally, in step S7, a horizontally arranged connecting rod is fixedly connected to the inner side of the forming template, and the supporting hanging plate is provided with a connecting assembly, which includes a connecting sliding seat, a connecting moving part, a connecting rotating seat and a connecting sleeve rod. The connecting sliding seat is horizontally slidably matched with the supporting hanging plate, and the connecting moving part is used to drive the connecting sliding seat to move along the axial direction of the connecting rod. The connecting rotating seat is rotationally matched with the connecting sliding seat, and the connecting sleeve rod is penetrated and threadedly matched with the connecting sliding seat. The connecting sliding seat is provided with a connecting limiter to limit the rotation of the connecting sleeve rod, and the bottom of the connecting sleeve rod is fixedly connected to a connecting ring that is plug-matched with the connecting rod.

[0024] By adopting the above technical solution, when the supporting hanging plate moves to a position close to the forming template, by rotating the connecting rotating seat to make the connecting sleeve move in the vertical direction to the position corresponding to the connecting ring and the connecting rod, the connecting moving part drives the connecting sliding seat to move in the horizontal direction to insert the connecting ring into the connecting rod to realize the connection between the forming template and the supporting hanging plate, so that when the supporting hanging plate is lowered by the lifting device, the forming template is driven to be lowered together, and the setting of the connecting rod facilitates the precise control of the lowering of the forming template.

[0025] Optionally, the connecting moving part includes a connecting motor and a connecting screw, the connecting screw is rotatably installed on the supporting hanging plate and is arranged parallel to the connecting rod, the connecting screw is passed through the connecting sliding seat and is threadedly matched with the connecting sliding seat, and the connecting motor is used to drive the connecting screw to rotate.

[0026] By adopting the above technical solution, when the connecting motor drives the connecting screw to rotate, the connecting sliding seat cooperates with the thread of the connecting screw and moves along the axial direction of the connecting screw under the limiting action of the supporting hanging plate, which is convenient and stable.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the construction of the shaft section is completed, the steel corrugated pipe located outside the shaft section plays a role in blocking the moisture in the formation, making it difficult for the moisture to cause erosion to the shaft section, which is beneficial to ensure the waterproof performance of the shaft section and the service life of the shaft section.

[0028] 2. The method of constructing the vertical shaft by drilling holes and burying explosives during the shaft section construction process is conducive to adapting to different types of rocks and complex geological conditions, making the construction more flexible and adaptable.

[0029] 3. The arrangement of pouring into the forming formwork through four pouring ports is conducive to ensuring the uniformity of concrete pouring into the forming formwork, thereby facilitating the guarantee of the structural strength of the concrete after final forming.

[0030] 4. When the supporting hoisting plate is lowered through the lifting device, the forming template is driven to be lowered together due to the connection between the connecting rod and the forming template, thereby facilitating the precise control of the lowering of the forming template. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 2 It is a partial cross-sectional front view schematic diagram of the vertical shaft in the embodiment of the present application.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the supporting hanging plate in the embodiment of the present application.

[0034] Figure 4 It is a partial cross-sectional stereoscopic schematic diagram of the steel bellows in the embodiment of the present application.

[0035] Figure 5 yes Figure 3 A partial enlarged schematic diagram of part A.

[0036] Figure 6 yes Figure 3 A partial enlarged schematic diagram of part B.

[0037] Description of reference numerals: 1. Hanger; 2. Hanging wheel; 3. Hanging rope; 4. Roller; 5. Supporting hanging plate; 501. Mounting plate; 502. Fixing rod; 6. Receive bucket; 7. Through hole; 8. Water pump; 9. Water delivery pipe; 10. Water storage tank; 11. Steel corrugated pipe; 111. Corrugated pipe body; 1111. First pipe body; 1112. Second pipe body; 12. Positioning anchor rod; 13. Positioning hole; 14. Pipe body positioning part; 15. Pipe body positioning groove; 16. Water stop strip; 17. Pouring nozzle; 18. Concrete distributor; 19. Reinforcement ribs; 20. Reinforcement sleeve; 21. Reinforcement drum; 22. Reinforcement screw; 23. Reinforcement limit part; 24. Reinforcement limit groove; 25. Connecting rod; 26. Connecting sliding seat; 27. Pressure head; 28. Connecting rotating seat; 29. ​​Connecting sleeve rod; 30. Installing slide groove; 31. Connecting limit part; 32. Connecting limit groove; 33. Connecting ring; 34. Connecting motor; 35. Connecting screw; 36. Forming template; 37. Center rotary rock grabber. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-6 This application is described in further detail.

[0039] The embodiment of the present application discloses a construction method applicable to an ultra-deep shaft lining structure of a high-pressure water-rich railway. The construction method applicable to an ultra-deep shaft lining structure of a high-pressure water-rich railway comprises the following specific steps: S1, drilling a hole at the bottom of the shaft and burying explosives, lifting the support hoisting plate 5 to a safe position in the shaft away from the bottom of the shaft by a lifting device, and then detonating the explosives. Figure 1 Specifically, the lifting device includes a hanger 1, a hanging wheel 2, a hanging rope 3 and a roller 4. The hanger 1 is fixedly arranged at the top of the shaft, the hanging wheel 2 is rotatably installed on the hanger 1, the hanging rope 3 is wound around the hanging wheel 2, and one end of the hanging wheel 2 is connected to the roller 4, and the other end is connected to the supporting hanging plate 5. The rotation of the roller 4 drives the winding of the hanging rope 3 to realize the vertical movement of the supporting hanging plate in the shaft body. In the embodiment of the present application, the rotation of the roller 4 is driven by a motor.

[0040] S2, after eliminating the danger, the support plate 5 is transported to a position close to the bottom of the well by the lifting device. Specifically, the suspension rope 3 drives the support plate 5 to move by the rotation of the roller 4.

[0041] S3, the blasted waste rock is placed in the receiving bucket 6 by the central rotary rock grabber 37 arranged at the bottom of the supporting hanging plate 5. Figure 2 and Figure 3 In the embodiment of the present application, the support plate 5 includes three mounting plates 501 distributed in the vertical direction, and a fixing rod 502 is arranged between two adjacent mounting plates 501. There are multiple fixing rods 502 distributed circumferentially around the axis of the mounting plate 501, and the two ends of the fixing rod 502 are respectively fixedly installed on the two mounting plates 501. Two central rotary rock grabbers 37 are provided and both are installed at the bottom of the mounting plate 501 near the bottom of the well. Each mounting plate 501 is provided with a through hole 7 for a vertical pipe to pass through and for the bucket to pass through, and the bucket is hoisted in the shaft by a rope.

[0042] S4, lift the bucket filled with gangue to the outside of the shaft, discharge it, and then lift it to the bottom of the shaft again.

[0043] S5, repeating steps S3 and S4, after the gangue after blasting in the shaft bottom is discharged, the water infiltrated into the shaft is pumped out by the water pump 8. Figure 2The input end of the water pump 8 is connected to a water supply pipe 9, a water tank 10 is installed on the top of the middle mounting plate 501, and the output end of the water pump 8 is connected to the water tank 10 through a pipeline to achieve temporary placement of water seeping into the shaft. When the water tank 10 is full, the supporting hanging plate 5 is lifted outside the shaft to clean the water tank 10, and then the supporting hanging plate 5 is lifted into the shaft again.

[0044] S6, clean the bottom of the shaft and open the under-excavated part, and install the steel corrugated pipe 11 after reaching the preset size. Figure 2 After the steel bellows 11 is installed, the polymer material is grouted between the steel bellows 11 and the shaft wall to further ensure the protection of the steel bellows 11 and ensure the waterproof performance of the steel bellows 11.

[0045] Reference Figure 2 and Figure 4 Specifically, in the embodiment of the present application, the steel bellows 11 is distributed in three layers along the vertical direction, and each layer of the steel bellows 11 includes a plurality of bellows bodies 111 distributed circumferentially around the shaft axis direction, and the bellows bodies 111 of two adjacent layers are arranged in a staggered manner to ensure the shear strength of the steel bellows 11. To facilitate the installation of the bellows bodies 111, a plurality of groups of positioning anchor rods 12 corresponding to the bellows bodies 111 are arranged in the shaft body, and each group of positioning anchor rods 12 is provided with a plurality of positioning holes 13 corresponding to each group of positioning anchor rods 12 and plugged with each positioning anchor rod 12, so as to play a role in positioning the bellows bodies 111 during installation.

[0046] Continue to refer to Figure 2 and Figure 4 , the two adjacent corrugated tube bodies 111 of each layer are respectively set as the first tube body 1111 and the second tube body 1112, wherein the first tube body 1111 is provided with a tube body positioning portion 14 on both sides, and the second tube body 1112 is provided with a tube body positioning groove 15 corresponding to the tube body positioning portion 14 and plugged with the tube body positioning portion 14 on both sides, and the tube body positioning groove 15 extends to the inner side of the corrugated tube body 111, that is, the side of the corrugated tube body 111 away from the shaft axis, so that the two adjacent corrugated tube bodies 111 are not easy to interfere with each other during installation, and it is convenient to quickly move the two adjacent corrugated tube bodies 111 to the position when fixed. The first tube body 1111 and the second tube body 1112 are fixed by countersunk bolts to ensure the connection stability between the two adjacent corrugated tube bodies 111 of each layer, and the ends of the top of the tube bodies are fixedly connected with water stop strips 16, which are pressed against the groove wall of the tube body positioning groove 15 to further ensure the waterproof performance between the two adjacent corrugated tube bodies 111 of each layer.

[0047] S7, after the steel bars are tied at the bottom of the well, the forming template 36 is lowered and concrete is poured into the area surrounding the forming template 36 and the steel corrugated pipe 11. Figure 3 The top of the forming template 36 has four pouring ports 17 evenly distributed around its own axis. Concrete is poured into the forming template 36 through a concrete distributor 18 and pipes corresponding to each pouring port 17 and connected to the concrete distributor 18 to ensure uniform stability of concrete pouring in the forming template 36.

[0048] Continue to refer to Figure 3 Furthermore, the forming template 36 includes a plurality of forming plates distributed circumferentially around the shaft axis, and two adjacent forming plates are fixed by bolts. A rectangularly distributed reinforcing rib 19 is provided on one side of each forming plate facing the shaft axis to ensure the structural strength of the forming plate. The two adjacent forming plates are fixed by bolts to ensure the connection stability between the two adjacent forming plates.

[0049] Reference Figure 3 and Figure 5 Two reinforcement components are arranged in the forming template 36. The two reinforcement components are respectively arranged on one side of the two forming plates facing the axis of the shaft. The reinforcement components include a reinforcement sleeve 20, a reinforcement rotating cylinder 21 and a reinforcement screw 22. The reinforcement sleeve 20 is vertically rotatably installed on one of the forming plates to facilitate the storage of the reinforcement sleeve 20. The reinforcement drum 21 is coaxially rotatably installed on one end of the reinforcement sleeve 20, and the reinforcement screw 22 is penetrated by the reinforcement drum 21 and is threadedly matched with the reinforcement drum 21 (the thread is not shown), and the reinforcement sleeve 20 is provided with a reinforcement limiter for limiting the rotation of the reinforcement screw 22, so that when the reinforcement sleeve 20 is rotated to a horizontal state and force is applied to rotate the reinforcement drum 21, the reinforcement screw 22 moves in a direction close to or away from the reinforcement sleeve 20 due to the threaded match with the reinforcement drum 21 and under the limiting action of the reinforcement limiter. When one end of the reinforcement screw 22 is tightly pressed against the inner wall of another forming plate, namely the forming template 36, it is beneficial to further ensure the stability of the position of the forming template 36. The end of the reinforcement screw 22 away from the reinforcement drum 21 is fixedly connected with a pressure head 27, and the cross-sectional size of the pressure head 27 is larger than the cross-sectional size of the reinforcement screw 22, which is beneficial to reduce the wear of the forming template 36 caused by excessive local pressure.

[0050] Reference Figure 5 Furthermore, the reinforcement limit member includes a reinforcement limit portion 23 fixedly installed in the reinforcement sleeve 20, and a reinforcement limit groove 24 extending along the axial direction of the reinforcement screw 22 is opened on the outside of the reinforcement limit portion 23, and the reinforcement limit portion 23 is slidably fitted in the reinforcement limit groove 24. The cooperation between the reinforcement limit portion 23 and the reinforcement limit groove 24 makes the limiting structure of the rotation of the reinforcement screw 22 simple, convenient and stable.

[0051] Reference Figure 3 and Figure 6In addition, the inner wall of the forming template 36, that is, the side of the forming plate body close to the axis of the shaft, is fixedly connected with a horizontally arranged connecting rod 25, and the supporting hanging plate 5 is provided with a connecting assembly, which includes a connecting sliding seat 26, a connecting moving part, a connecting rotating seat 28 and a connecting sleeve rod 29, wherein the mounting plate body 501 at the bottom of the supporting hanging plate 5 is provided with a mounting slide groove 30 extending along its own radial direction and vertically penetrating therethrough, the connecting sliding seat 26 slides in the mounting slide groove 30, the connecting rotating seat 28 rotates in the top of the connecting sliding seat 26, the connecting sleeve rod 29 is coaxially penetrated and threadedly engaged with the connecting rotating seat 28 (the thread is not shown), the connecting sliding seat 26 is provided with a connecting limiter that limits the rotation of the connecting sleeve rod 29, the connecting limiter includes a connecting limiter portion 31 fixedly installed in the connecting sliding seat 26, and a connecting limiter groove 32 extending along its own axial direction is provided on the outer side of the screw rod of the connecting sleeve rod 29, and the connecting limiter portion 31 slides in the connecting limiter groove 32 to play a limiting role in the rotation of the connecting sleeve rod 29.

[0052] Continue to refer to Figure 3 and Figure 6 The bottom of the connecting sleeve 29 is fixedly connected with a connecting ring 33 that is plugged into the connecting rod 25. The connecting moving part is used to drive the connecting sliding seat 26 to move along the axial direction of the connecting rod 25. When the connecting rotating seat 28 is rotated to make the connecting sleeve move in the vertical direction to the position corresponding to the connecting ring 33 and the connecting rod 25, the connecting sliding seat 26 is driven by the connecting moving part to move horizontally along the axial direction of the connecting rod 25 so that the connecting ring 33 is inserted into the connecting rod 25 to realize the connection between the forming template 36 and the supporting hanging plate 5, and then when the supporting hanging plate 5 is lowered by the lifting device, the forming template 36 is driven to be lowered together. The setting of the connecting rod 25 facilitates the precise control of the lowering of the forming template 36.

[0053] Reference Figure 6 Furthermore, the connecting moving part includes a connecting motor 34 and a connecting screw 35. The connecting screw 35 is rotatably installed on the supporting hanging plate 5 and is arranged parallel to the connecting rod 25. The connecting screw 35 is passed through the connecting sliding seat 26 and is threadedly matched with the connecting sliding seat 26 (the thread is not shown). The connecting motor 34 is used to drive the connecting screw 35 to rotate. When the connecting motor 34 drives the connecting screw 35 to rotate, the connecting sliding seat 26 moves along the axial direction of the connecting screw 35, which is convenient and stable.

[0054] S8, after cooling, one of the wellbore sections is subjected to forming processing.

[0055] The implementation principle of the construction method of an embodiment of the present application, which is suitable for an ultra-deep vertical shaft lining structure of a high-pressure water-rich railway, is as follows: after the construction of the shaft section is completed, the steel bellows 11 and the polymer material located on the outside of the shaft section play a role in blocking the moisture in the formation, so that the moisture is not easy to cause erosion to the shaft section, which is beneficial to ensure the waterproof performance of the shaft section and the service life of the shaft section. In addition, the method of constructing the shaft by drilling holes and burying explosives during the construction of the shaft section is conducive to adapting to different types of rocks and complex geological conditions, making the construction more flexible and changeable and highly applicable.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction method for ultra-deep shaft lining structure of high-pressure water-rich railway, characterized by: The method comprises the following specific steps: S1, drilling a hole at the bottom of the shaft and burying explosives, lifting the supporting hoisting plate (5) to a safe position away from the bottom of the shaft by a lifting device, and then detonating the explosives; S2, after eliminating the danger, the supporting hoisting plate (5) is transported to a position close to the bottom of the well by means of a hoisting device; S3, placing the blasted waste rock into a receiving bucket (6) by means of a central rotary rock grabber (37) arranged at the bottom of the supporting hanging plate (5); S4, hoisting the bucket filled with gangue to the outside of the shaft for discharge and then hoisting it back to the bottom of the shaft; S5, repeating steps S3 and S4, after the gangue after blasting in the bottom of the shaft is discharged, the water infiltrated into the shaft is pumped out by a water pump (8); S6, cleaning the bottom of the shaft and opening the under-excavated part, and installing the steel bellows (11) after reaching a preset size; S7, after tying the steel bars in the well bottom, lowering the forming template (36), and then pouring concrete into the area enclosed by the forming template (36) and the steel corrugated pipe (11); S8, after cooling, one of the wellbore sections is subjected to forming processing.

2. A construction method for a high-pressure water-rich railway ultra-deep shaft lining structure according to claim 1, characterized in that: The steel corrugated pipe (11) in step S6 is distributed in multiple layers along the vertical direction, and each layer of the steel corrugated pipe (11) includes multiple corrugated pipe bodies (111) distributed circumferentially around the axis of the shaft. The corrugated pipe bodies (111) of each layer are arranged in a staggered manner, and a water stop strip (16) is arranged between two adjacent corrugated pipe bodies (111).

3. A construction method for a high-pressure water-rich railway ultra-deep shaft lining structure according to claim 2, characterized in that: A plurality of groups of positioning anchor rods (12) corresponding one-to-one to the corrugated tube bodies (111) are arranged in the shaft body, and each group of the positioning anchor rods (12) is provided with a plurality of positioning anchor rods, and the corrugated tube body (111) is provided with positioning holes (13) corresponding one-to-one to each positioning anchor rod (12) in each group and plugged with each positioning anchor rod (12); two adjacent corrugated tube bodies (111) in each layer are provided as a first tube body (1111) and a second tube body (1112), and tube body positioning portions (14) are convexly provided on both sides of the first tube body (1111), and tube body positioning grooves (15) corresponding to the tube body positioning portions (14) and plugged with the tube body positioning portions (14) are concavely provided on both sides of the second tube body (1112).

4. The construction method for the lining structure of an ultra-deep shaft of a high-pressure water-rich railway according to claim 2 is characterized in that: After the steel bellows (11) is installed, the polymer material is grout-injected between the steel bellows (11) and the wall of the shaft.

5. The construction method for the lining structure of an ultra-deep shaft of a high-pressure water-rich railway according to claim 1 is characterized in that: The forming template (36) in step S7 has four pouring ports (17) uniformly distributed around its own axis, and concrete is poured into the forming template (36) through a concrete distributor (18) and pipes corresponding to the pouring ports (17) and connected to the concrete distributor (18).

6. The construction method for the lining structure of an ultra-deep shaft of a high-pressure water-rich railway according to claim 1 is characterized in that: The forming template (36) in step S7 comprises a plurality of forming plates distributed circumferentially around the shaft axis, two adjacent forming plates are fixed by bolts, and a reinforcing rib (19) is provided on one side of each forming plate facing the shaft axis.

7. A construction method for a high-pressure water-rich railway ultra-deep shaft lining structure according to claim 6, characterized in that: A reinforcement component is provided on one side of the forming plate bodies facing the axis of the shaft, and the reinforcement component includes a reinforcement sleeve (20), a reinforcement rotating cylinder (21) and a reinforcement screw (22). The reinforcement sleeve (20) is rotatably mounted on one of the forming plate bodies, and the reinforcement rotating cylinder (21) is coaxially rotatably mounted on the reinforcement sleeve (20). The reinforcement screw (22) is inserted into the reinforcement rotating cylinder (21) and threadedly engaged with the reinforcement rotating cylinder (21). The reinforcement sleeve (20) is provided with a reinforcement limiter for limiting the rotation of the reinforcement screw (22).

8. The construction method for the lining structure of an ultra-deep shaft of a high-pressure water-rich railway according to claim 7 is characterized in that: The reinforcement limiting member comprises a reinforcement limiting portion (23) fixedly mounted in a reinforcement sleeve (20); a reinforcement limiting groove (24) extending along the axial direction of the reinforcement screw (22) is provided on the outer side thereof; and the reinforcement limiting portion (23) is slidably fitted in the reinforcement limiting groove (24).

9. The construction method for the lining structure of an ultra-deep shaft of a high-pressure water-rich railway according to claim 1, characterized in that: In step S7, the inner side of the forming template (36) is fixedly connected with a horizontally arranged connecting rod (25), and the supporting hanging plate (5) is provided with a connecting assembly, which includes a connecting sliding seat (26), a connecting moving part, a connecting rotating seat (28) and a connecting sleeve rod (29). The connecting sliding seat (26) is horizontally slidably matched with the supporting hanging plate (5), and the connecting moving part is used to drive the connecting sliding seat (26) to move along the axial direction of the connecting rod (25). The connecting rotating seat (28) is rotationally matched with the connecting sliding seat (26), and the connecting sleeve rod (29) is penetrated and threadedly matched with the connecting sliding seat (26). The connecting sliding seat (26) is provided with a connecting limiter for limiting the rotation of the connecting sleeve rod (29), and the bottom of the connecting sleeve rod (29) is fixedly connected with a connecting ring (33) plug-fitted with the connecting rod (25).

10. A construction method for a high-pressure water-rich railway ultra-deep shaft lining structure according to claim 9, characterized in that: The connecting moving part comprises a connecting motor (34) and a connecting screw rod (35). The connecting screw rod (35) is rotatably mounted on the supporting hanging plate (5) and is arranged parallel to the connecting rod (25). The connecting screw rod (35) is passed through the connecting sliding seat (26) and is threadedly matched with the connecting sliding seat (26). The connecting motor (34) is used to drive the connecting screw rod (35) to rotate.

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