A construction method suitable for high-pressure water-rich railway super-deep shaft lining structure

Abstract

The application discloses a construction method suitable for high-pressure water-rich railway super-deep vertical shaft lining structure and belongs to the technical field of railway construction, which comprises the following specific steps: S1, drilling the vertical shaft bottom and burying explosives, hoisting the support hanging plate to a safe position away from the vertical shaft bottom in the vertical shaft, and detonating the explosives; S2, transporting the support hanging plate to the vertical shaft bottom through a hoisting device; S3, placing the gangue after blasting in a receiving bucket; S4, hoisting the bucket containing the gangue to the outside of the vertical shaft for discharge and then hoisting it to the vertical shaft bottom again; S5, after the gangue is discharged, pumping the water seeped into the vertical shaft through a water pump; S6, cleaning the vertical shaft bottom and installing a steel corrugated pipe; S7, pouring concrete after lowering a forming template; and S8, forming the one shaft section after cooling. The application has the effect of improving the waterproof performance of the shaft section after construction is completed, thereby conveniently ensuring the service life of the shaft section.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway construction, and in particular to a construction method suitable for lining structure of super-deep vertical shaft of high-pressure water-rich railway. BACKGROUND

[0002] Setting up a vertical shaft in the process of tunnel construction is a necessary work, which can provide a channel for ventilation and discharge of spoil, provide a convenient channel for monitoring and measurement, and ensure the safety and stability of the tunnel; at the same time, the vertical shaft can also serve as an escape channel and an important facility for construction management, improving construction efficiency and quality.

[0003] In the process of vertical shaft construction, the lock is usually constructed, that is, the ground is excavated first, and after the excavation reaches the preset depth of the lock, mortar is laid and steel bars are bound, a lock formwork is erected outside the bound steel bars and poured and condensed to realize the construction of the lock, then the lock formwork is removed and the excavation area outside the lock is backfilled, and then the shaft section is constructed from the inside of the lock.

[0004] The process of the shaft section is mainly to drill and excavate in the shaft body, then hoist and discharge the excavated gangue by a bucket, bind the steel bars at the shaft after discharge, install the formwork, and then pour and condense the concrete, and remove the formwork to realize the forming of one section of the shaft, and then construct multiple sections of the shaft until the designed depth to complete the lining construction of the vertical shaft.

[0005] For the prior art described above, when facing high-pressure water-rich geology, the water in the stratum after the construction of one section of the shaft section is completed is easy to cause erosion of the shaft section, and the waterproof performance of the constructed shaft section is poor, which is not convenient for ensuring the service life of the shaft section. SUMMARY

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

[0007] The construction method suitable for lining structure of super-deep vertical shaft of high-pressure water-rich railway provided by the present application adopts the following technical scheme:

[0008] The application discloses a construction method suitable for lining structure of high-pressure water-rich railway super-deep vertical shaft, which comprises the following steps: S1, drilling and burying explosives at the bottom of the vertical shaft, and then igniting the explosives by a hoisting device after the supporting platform is hoisted to a safe position far from the bottom of the vertical shaft; S2, after the danger is eliminated, the supporting platform is transported to a position close to the bottom of the vertical shaft by the hoisting device; S3, the gangue after blasting is placed in a receiving bucket by a central rotary rock grab arranged at the bottom of the supporting platform; S4, the bucket containing the gangue is hoisted to the outside of the vertical shaft for discharge and then hoisted to the bottom of the vertical shaft again; S5, the steps S3 and S4 are repeated, and after the gangue after blasting in the bottom of the vertical shaft is discharged, the water seeped into the vertical shaft is pumped out; S6, the bottom of the vertical shaft is cleaned, and the opening operation is performed on the under-excavated part, and the steel corrugated pipe is installed after reaching the preset size; S7, after the steel bar is bound at the bottom, the forming template is lowered, and the concrete is poured into the surrounding area of the forming template and the steel corrugated pipe; and S8, the forming treatment of one shaft section is realized after cooling.

[0009] By adopting the technical scheme, the steel corrugated pipe outside the shaft section after the construction of the shaft section plays a blocking role on the water in the stratum, so that the water is not easy to cause erosion to the shaft section, and thus the waterproof performance of the shaft section is guaranteed, and the service life of the shaft section is guaranteed.

[0010] Optionally, the steel corrugated pipe in the step S6 is distributed in multiple layers in the vertical direction, each layer of the steel corrugated pipe comprises a plurality of corrugated pipe bodies distributed in the circumferential direction around the shaft axis, the corrugated pipe bodies in each layer are arranged in a staggered mode, and a water stop strip is arranged between the adjacent two corrugated pipe bodies.

[0011] By adopting the technical scheme, the corrugated pipe bodies arranged in a staggered mode are favorable for guaranteeing the overall strength of the steel corrugated pipe after installation, and the water stop strip is favorable for further guaranteeing the sealing performance between the adjacent two corrugated pipe bodies, so that the water is not easy to seep in through the gap between the adjacent two corrugated pipe bodies.

[0012] Optionally, a plurality of groups of positioning anchor rods are arranged in the vertical shaft body in a one-to-one correspondence with the corrugated pipe bodies, each group of the positioning anchor rods is provided with a plurality of positioning anchor rods, the corrugated pipe body is provided with a positioning hole in a one-to-one correspondence with each group of the positioning anchor rods and in a plug-in fit with each positioning anchor rod, and each layer of the adjacent two corrugated pipe bodies is arranged as a first pipe body and a second pipe body, the first pipe body is provided with a pipe body positioning part on both sides, and the second pipe body is provided with a pipe body positioning groove on both sides in a corresponding and plug-in fit mode with the pipe body positioning part.

[0013] By adopting the technical scheme, the positioning anchor rod is arranged to position the corrugated pipe body during installation, facilitating quick installation of the corrugated pipe body to a specified position.

[0014] Optionally, after the steel corrugated pipe is installed, the polymer material is grouted between the steel corrugated pipe and the shaft wall of the shaft.

[0015] By adopting the technical scheme, the polymer material has excellent chemical stability and corrosion resistance, which facilitates effective resistance to external environmental erosion and damage, thereby facilitating further protection of the steel corrugated pipe and ensuring the waterproof performance of the steel corrugated pipe.

[0016] Optionally, the forming template in the S7 step has four pouring openings uniformly distributed around the axis thereof, and the concrete is poured into the forming template through a concrete distributor and pipelines respectively corresponding to the pouring openings and connected to the concrete distributor.

[0017] By adopting the technical scheme, the uniformity of the concrete poured into the forming template is ensured, thereby facilitating the structural strength of the finally formed concrete.

[0018] Optionally, the forming template in the S7 step includes a plurality of forming plate bodies circumferentially distributed around the shaft axis, and adjacent two forming plate bodies are fixed by bolts, and each forming plate body is provided with a reinforcing rib on the side facing the shaft axis.

[0019] By adopting the technical scheme, the reinforcing rib facilitates to ensure the overall structural strength of the forming template, the arrangement of the forming plate bodies facilitates the production and assembly of the forming template, and subsequent maintenance and repair of the forming template are facilitated.

[0020] Optionally, one of the forming plate bodies is provided with a reinforcing assembly on the side facing the shaft axis, the reinforcing assembly includes a reinforcing sleeve, a reinforcing drum and a reinforcing screw, the reinforcing sleeve is rotatably installed in one of the forming plate bodies, the reinforcing drum is coaxially rotatably installed in the reinforcing sleeve, the reinforcing screw is arranged in the reinforcing drum and threadedly cooperates with the reinforcing drum, and the reinforcing sleeve is provided with a reinforcing limiting piece limiting rotation of the reinforcing screw.

[0021] By adopting the technical scheme, when the reinforcing sleeve is rotated to a horizontal state and the reinforcing drum is rotated with force, the reinforcing screw moves towards or away from the reinforcing sleeve due to the thread cooperation with the reinforcing drum and the limiting action of the reinforcing limiting piece, and when one end of the reinforcing screw abuts against the other forming plate body, the stability of the position of the forming template is further ensured.

[0022] Optionally, the reinforcing limiting piece comprises a reinforcing limiting portion fixedly installed in the reinforcing sleeve, and the reinforcing screw is provided with a reinforcing limiting groove extending along the axial direction of the reinforcing screw.

[0023] By adopting the above technical scheme, the cooperation of the reinforcing limiting portion and the reinforcing limiting groove makes the limiting structure of the reinforcing screw simple and stable.

[0024] Optionally, the inside of the forming template is fixedly connected with a horizontally arranged connecting rod in the S7 step, the support hanging plate is provided with a connecting assembly, the connecting assembly comprises a connecting sliding seat, a connecting moving piece, a connecting rotating seat and a connecting sleeve rod, the connecting sliding seat is horizontally slidingly matched with the support hanging plate, the connecting moving piece is used to drive the connecting sliding seat to move along the axial direction of the connecting rod, the connecting rotating seat is rotatingly matched with the connecting sliding seat, the connecting sleeve rod is penetratingly and threadedly matched with the connecting sliding seat, the connecting sliding seat is provided with a connecting limiting piece for limiting the rotation of the connecting sleeve rod, and the bottom of the connecting sleeve rod is fixedly connected with a connecting ring for plug-in matching with the connecting rod.

[0025] By adopting the above technical scheme, when the support hanging plate moves to the position close to the forming template, the connecting sleeve rod is moved along the vertical direction by rotating the connecting rotating seat when the connecting ring corresponds to the position of the connecting rod, the connecting ring is sleeved into the connecting rod by driving the horizontal movement of the connecting sliding seat by the connecting moving piece, the connection between the forming template and the support hanging plate can be realized, so that when the support hanging plate is lowered by the lifting device, the forming template is lowered together, and the precise control of the lowering of the forming template is facilitated by the arrangement of the connecting rod.

[0026] Optionally, the connecting moving piece comprises a connecting motor and a connecting screw rod, the connecting screw rod is rotatingly installed on the support hanging plate and is arranged in parallel with the connecting rod, the connecting screw rod is penetratingly arranged in the connecting sliding seat and is threadedly matched with the connecting sliding seat, and the connecting motor is used to drive the rotation of the connecting screw rod.

[0027] By adopting the above technical scheme, when the connecting motor drives the rotation of the connecting screw rod, the connecting sliding seat moves along the axial direction of the connecting screw rod due to the thread cooperation with the connecting screw rod and the limiting action of the support hanging plate, which is convenient and stable.

[0028] In summary, the present application has at least one of the following beneficial technical effects:

[0029] 1、After the wellbore section construction is completed, the steel corrugated pipe located outside the wellbore section plays a blocking role on the water in the stratum, so that the water is not easy to cause erosion to the wellbore section, thereby being conducive to ensuring the waterproof performance of the wellbore section and facilitating the guarantee of the service life of the wellbore section.

[0030] 2、The mode of constructing the shaft by drilling and burying explosives during the construction process of the wellbore section is beneficial to adapt to different types of rocks and complex geological conditions, so that the construction is more flexible and variable, and the applicability is strong.

[0031] 3、The setting of pouring through the four pouring gates into the forming mold plate is beneficial to ensure the uniformity of the concrete pouring into the forming mold plate, thereby facilitating to ensure the structural strength of the finally formed concrete.

[0032] 4、When the supporting hanging plate is lowered by the hoisting device, the connecting rod drives the forming mold plate to be lowered together due to the connection between the connecting rod and the forming mold plate, thereby facilitating to realize the accurate control of the lowering of the forming mold plate. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a whole structure schematic diagram of the embodiment of the present application.

[0034] Figure 2 is a partial cross-sectional front view schematic diagram of the shaft in the embodiment of the present application.

[0035] Figure 3 is a three-dimensional structure schematic diagram of the supporting hanging plate in the embodiment of the present application.

[0036] Figure 4 is a partial cross-sectional three-dimensional schematic diagram of the steel corrugated pipe in the embodiment of the present application.

[0037] Figure 5 is a partial enlarged schematic diagram of A part in Figure 3

[0038] Figure 6 is a partial enlarged schematic diagram of B part in Figure 3

[0039] Explanation of reference signs:

[0040] ​​1, hanger; 2, hanger wheel; 3, hanger rope; 4, rotating roller; 5, support hanging disc; 501, mounting disc body; 502, fixed rod; 6, receiving hanging bucket; 7, via 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 port; 18, concrete distributor; 19, reinforcing rib; 20, reinforcing sleeve; 21, reinforcing rotating cylinder; 22, reinforcing screw rod; 23, reinforcing limiting part; 24, reinforcing limiting groove; 25, connecting rod; 26, connecting sliding seat; 27, pressing head; 28, connecting rotating seat; 29, connecting sleeve rod; 30, mounting sliding groove; 31, connecting limiting part; 32, connecting limiting groove; 33, connecting ring; 34, connecting motor; 35, connecting screw rod; 36, forming template; 37, center rotary rock grab. DETAILED DESCRIPTION

[0041] The following will be described in detail with reference to the accompanying drawings. Figures 1-6 The application is further described in detail.

[0042] The application discloses a construction method suitable for lining structure of high-pressure water-rich railway super-deep vertical shaft. The construction method suitable for lining structure of high-pressure water-rich railway super-deep vertical shaft comprises the following specific steps: S1, drilling the vertical shaft bottom and burying explosives, and then detonating the explosives through a hoisting device after the support hanging disc 5 is hoisted to a safe position away from the vertical shaft bottom. Figure 1 Specifically, the hoisting device comprises a hanger 1, a hanger wheel 2, a hanger rope 3 and a rotating roller 4, the hanger 1 is fixedly arranged at the vertical shaft top, the hanger wheel 2 is rotatably arranged on the hanger 1, the hanger rope 3 is arranged around the hanger wheel 2, one end of the hanger wheel 2 is connected to the rotating roller 4, and the other end is connected to the support hanging disc 5, the rotating roller 4 is driven to rotate to drive the hanger rope 3 to be wound, thereby achieving the vertical movement of the support hanging disc in the vertical shaft body, and the rotating roller 4 is driven to rotate by a motor in the application.

[0043] S2, after the danger is eliminated, the support hanging disc 5 is transported to a position close to the vertical shaft bottom through the hoisting device. Specifically, the rotating roller 4 is driven to rotate to drive the hanger rope 3 to move the support hanging disc 5.

[0044] S3, the center rotary rock grab 37 arranged at the bottom of the support hanging disc 5 is used to place the broken gangue in the receiving hanging bucket 6. Specifically, Figure 2 and Figure 3The support hanging disc 5 in the embodiment of the application comprises three installation disc bodies 501 distributed along the vertical direction, a fixing rod 502 is arranged between two adjacent installation disc bodies 501, the fixing rod 502 is circumferentially distributed around the axis of the installation disc body 501, and the two ends of the fixing rod 502 are fixedly installed on the two installation disc bodies 501 respectively. The central rotary rock grab 37 is provided with two and is installed on the bottom of the installation disc body 501 close to the well bottom. Each installation disc body 501 is provided with a vertical pipe passing through and used for passing through the bucket, and the bucket is hoisted in the shaft by a rope.

[0045] S4, the bucket after containing the gangue is hoisted to the outside of the shaft for discharge and then hoisted to the well bottom of the shaft again.

[0046] S5, steps S3 and S4 are repeated, and after the gangue after blasting in the well bottom of the shaft is discharged, the water seeped into the shaft is pumped by the water pump 8. Referring to Figure 2 , the input end of the water pump 8 is connected with a water supply pipe 9, the top of the middle installation disc body 501 is provided with a water storage tank 10, and the output end of the water pump 8 is connected to the water storage tank 10 through a pipeline, so as to temporarily place the water seeped into the shaft. When the water storage tank 10 is full, the support hanging disc 5 is hoisted outside the shaft to clean the water storage tank 10, and then the support hanging disc 5 is hoisted into the shaft again.

[0047] S6, the well bottom of the shaft is cleaned and the help operation is performed on the under-excavated part, and after the steel corrugated pipe 11 reaches the preset size, the steel corrugated pipe 11 is installed. Referring to Figure 2 , after the steel corrugated pipe 11 is installed, the high polymer material is grouted between the steel corrugated pipe 11 and the shaft wall, so as to further ensure the protection of the steel corrugated pipe 11 and ensure the waterproof performance of the steel corrugated pipe 11.

[0048] Referring to Figure 2 and Figure 4 , specifically, the steel corrugated pipe 11 in the embodiment of the application is distributed in three layers along the vertical direction, each layer of the steel corrugated pipe 11 comprises a plurality of corrugated pipe bodies 111 circumferentially distributed around the shaft axis direction, and the corrugated pipe bodies 111 of the adjacent two layers are staggered to ensure the shear strength of the steel corrugated pipe 11. In order to facilitate the installation of the corrugated pipe body 111, a plurality of groups of positioning anchor rods 12 corresponding to the corrugated pipe body 111 are arranged in the shaft body, each group of positioning anchor rods 12 is provided with a plurality of positioning anchor rods 12, and each corrugated pipe body 111 is provided with a positioning hole 13 corresponding to each group of positioning anchor rods 12 and matched with each positioning anchor rod 12, so as to play a positioning role in the installation of the corrugated pipe body 111.

[0049] Referring to Figure 2 and Figure 4Each of the two adjacent corrugated pipe bodies 111 in each layer is provided as a first pipe body 1111 and a second pipe body 1112, wherein the first pipe body 1111 is provided with pipe body positioning portions 14 on both sides, the second pipe body 1112 is provided with pipe body positioning grooves 15 corresponding to the pipe body positioning portions 14 and being inserted and matched with the pipe body positioning portions 14 on both sides, the pipe body positioning grooves 15 extend to the inner side of the corrugated pipe body 111, i.e. the side of the corrugated pipe body 111 away from the shaft axis, so that the adjacent two corrugated pipe bodies 111 are not easy to interfere when installed, and the adjacent two corrugated pipe bodies 111 are facilitated to be quickly moved to the position when fixed. The first pipe body 1111 and the second pipe body 1112 are fixed by countersunk head bolts to ensure the connection stability between the adjacent two corrugated pipe bodies 111 in each layer, and the end portions of the pipe body top are fixedly connected with water stop strips 16 abutting against the groove walls of the pipe body positioning grooves 15 to further ensure the waterproof performance between the adjacent two corrugated pipe bodies 111 in each layer.

[0050] S7, after the steel reinforcement is bound in the well bottom, the forming template 36 is lowered, and concrete is poured into the surrounding area of the forming template 36 and the steel corrugated pipe 11. Specifically, referring to Figure 3 , the top of the forming template 36 has four pouring openings 17 uniformly distributed circumferentially around the shaft axis, and the concrete is poured into the forming template 36 through a concrete distributor 18 and a pipeline corresponding to each pouring opening 17 and connected to the concrete distributor 18 to ensure the uniform stability of the concrete poured into the forming template 36.

[0051] Continuing to refer to Figure 3 , further, the forming template 36 includes a plurality of forming plate bodies circumferentially distributed around the shaft axis, the adjacent two forming plate bodies are fixed by bolts, and each forming plate body is provided with a rectangularly distributed reinforcing rib 19 on the side facing the shaft axis to ensure the structural strength of the forming plate body, and the adjacent two forming plate bodies are fixed by bolts to ensure the connection stability between the adjacent two forming plate bodies.

[0052] Referring to Figure 3 and Figure 5, two reinforcing assemblies are arranged in the forming template 36, and the two reinforcing assemblies are arranged on the side of the two forming plate bodies facing the shaft axis. The reinforcing assembly comprises a reinforcing sleeve 20, a reinforcing rotating cylinder 21, and a reinforcing screw rod 22. The reinforcing sleeve 20 is vertically rotatably arranged on one of the forming plate bodies, so as to realize the storage of the reinforcing sleeve 20. The reinforcing rotating cylinder 21 is coaxially rotatably arranged on one end of the reinforcing sleeve 20. The reinforcing screw rod 22 penetrates the reinforcing rotating cylinder 21 and is threadedly connected with the reinforcing rotating cylinder 21 (the thread is not shown). The reinforcing sleeve 20 is provided with a reinforcing limiting part for limiting the rotation of the reinforcing screw rod 22. When the reinforcing sleeve 20 is rotated to the horizontal state and the reinforcing rotating cylinder 21 is rotated by force, the reinforcing screw rod 22 moves towards or away from the reinforcing sleeve 20 due to the thread connection with the reinforcing rotating cylinder 21 and the limiting action of the reinforcing limiting part. When one end of the reinforcing screw rod 22 abuts against the inner wall of the other forming plate body, i.e., the forming template 36, the stability of the position of the forming template 36 is further ensured. One end of the reinforcing screw rod 22 away from the reinforcing rotating cylinder 21 is fixedly connected with an abutting head 27. The cross-sectional dimension of the abutting head 27 is greater than that of the reinforcing screw rod 22, so as to reduce the abrasion of the forming template 36 caused by excessive local pressure.

[0053] With reference to Figure 5 Further, the reinforcing limiting part comprises a reinforcing limiting part 23 fixedly arranged in the reinforcing sleeve 20. The outer side of the reinforcing screw rod 22 is provided with a reinforcing limiting groove 24 extending along the axis direction of the reinforcing screw rod 22. The reinforcing limiting part 23 is slidingly connected in the reinforcing limiting groove 24. The cooperation between the reinforcing limiting part 23 and the reinforcing limiting groove 24 makes the limiting structure of the rotation of the reinforcing screw rod 22 simple and stable.

[0054] With reference to Figure 3 and Figure 6 In addition, the inner wall of the forming template 36, i.e., the side of the forming plate body close to the shaft axis, is fixedly connected with a horizontally arranged connecting rod 25. The support hanging plate 5 is provided with a connecting assembly. The connecting assembly comprises a connecting sliding seat 26, a connecting moving part, a connecting rotating seat 28, and a connecting sleeve rod 29. The bottom mounting plate body 501 of the support hanging plate 5 is provided with a mounting sliding groove 30 extending along the radial direction of the mounting plate body 501 and vertically penetrating. The connecting sliding seat 26 is slidingly connected in the mounting sliding groove 30. The connecting rotating seat 28 is rotatably connected on the top of the connecting sliding seat 26. The connecting sleeve rod 29 is coaxially penetrated and threadedly connected with the connecting rotating seat 28 (the thread is not shown). The connecting sliding seat 26 is provided with a connecting limiting part 31 fixedly arranged in the connecting sliding seat 26. The outer side of the connecting sleeve rod 29 is provided with a connecting limiting groove 32 extending along the axis direction of the connecting sleeve rod 29. The connecting limiting part 31 is slidingly connected in the connecting limiting groove 32, so as to play a limiting role when the connecting sleeve rod 29 rotates.

[0055] With reference toFigure 3 And Figure 6 The bottom of the connecting sleeve rod 29 is fixedly connected with a connecting ring 33 which is inserted and matched with the connecting rod 25, the connecting moving part is used to drive the connecting sliding seat 26 to move along the axis direction of the connecting rod 25, when the connecting sleeve moves along the vertical direction and the connecting ring 33 is in the corresponding position of the connecting rod 25, the connecting sliding seat 26 is driven by the connecting moving part to move horizontally along the axis direction of the connecting rod 25, so that the connecting ring 33 is sleeved into the connecting rod 25, and the connection between the forming template 36 and the support hanging plate 5 can be realized, and then when the support hanging plate 5 is lowered by the lifting device, the forming template 36 is also lowered, and the precise control of the lowering of the forming template 36 is facilitated by the arrangement of the connecting rod 25.

[0056] Referring to Figure 6 Further, the connecting moving part comprises a connecting motor 34 and a connecting screw rod 35, the connecting screw rod 35 is rotatably installed on the support hanging plate 5 and is arranged in parallel with the connecting rod 25, the connecting screw rod 35 is provided 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 rod 35 to rotate, when the connecting motor 34 drives the connecting screw rod 35 to rotate, the connecting sliding seat 26 moves along the axis direction of the connecting screw rod 35, and the stability is facilitated.

[0057] S8, after cooling, the forming treatment of one wellbore section is realized.

[0058] The implementation principle of the construction method of the high-pressure water-rich railway super-deep vertical shaft lining structure is that: when the wellbore section construction is completed, the steel corrugated pipe 11 and the high-molecular polymer material located outside the wellbore section play a blocking role on the water in the stratum, so that the water is not easy to cause erosion to the wellbore section, and then the waterproof performance of the wellbore section is facilitated to be ensured, and the service life of the wellbore section is facilitated to be ensured, in addition, the drilling and explosive embedding construction mode of the vertical shaft during the wellbore section construction process is favorable for adapting to different types of rocks and complex geological conditions, so that the construction is more flexible and changeable, and the applicability is strong.

[0059] The above are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.

Claims

1. A construction method suitable for high-pressure water-rich railway super-deep shaft lining structure, characterized in that: It comprises the following steps, S1, drilling and burying explosives at the bottom of the shaft, and then detonating the explosives after the support platform (5) is hoisted to a safe position away from the bottom of the shaft by a hoisting device; S2, after the danger is eliminated, the support platform (5) is transported to a position close to the bottom of the shaft by the hoisting device; S3, the broken gangue is placed in the receiving bucket (6) by the central rotary rock grab (37) arranged at the bottom of the support platform (5); S4, the bucket containing the gangue is hoisted to the outside of the shaft for discharge and then hoisted to the bottom of the shaft again; S5, repeat steps S3 and S4, after the broken gangue in the shaft bottom is discharged, the water seeped into the shaft is pumped out by the water pump (8); S6, clean the bottom of the shaft and perform the opening operation on the under-excavated part, and then install the steel corrugated pipe (11) after reaching the preset size; S7, after the reinforcement is tied at the bottom of the shaft, the forming template (36) is lowered, and the concrete is poured into the surrounding area of the forming template (36) and the steel corrugated pipe (11); S8, after cooling, the forming of one shaft section is realized. The steel corrugated pipe (11) in the S6 step is distributed in multiple layers along the vertical direction, each layer of the steel corrugated pipe (11) comprises a plurality of corrugated pipe bodies (111) distributed circumferentially around the shaft axis direction, and the corrugated pipe bodies (111) of each layer are arranged alternately, and a water stop strip (16) is arranged between adjacent two corrugated pipe bodies (111). The forming template (36) in the S7 step comprises a plurality of forming plate bodies distributed circumferentially around the shaft axis, and adjacent two forming plate bodies are fixed by bolts, and each forming plate body is provided with a reinforcing rib (19) on the side facing the shaft axis. One side of one of the forming plate bodies facing the shaft axis is provided with a reinforcing assembly, the reinforcing assembly comprises a reinforcing sleeve (20), a reinforcing rotating cylinder (21) and a reinforcing screw rod (22), the reinforcing sleeve (20) is rotatably installed on one of the forming plate bodies, the reinforcing rotating cylinder (21) is coaxially rotatably installed on the reinforcing sleeve (20), the reinforcing screw rod (22) penetrates the reinforcing rotating cylinder (21) and threadedly cooperates with the reinforcing rotating cylinder (21), and the reinforcing sleeve (20) is provided with a reinforcing limiting piece limiting the rotation of the reinforcing screw rod (22).

2. The construction method for lining structure of high-pressure water-rich railway super-deep shaft according to claim 1, characterized in that: A plurality of groups of positioning anchor rods (12) are arranged in the shaft body in one-to-one correspondence with the corrugated pipe bodies (111), each group of the positioning anchor rods (12) is provided with a plurality of positioning holes (13) corresponding to each positioning anchor rod (12) and matched with each positioning anchor rod (12), and each layer of adjacent two corrugated pipe bodies (111) is provided with a first pipe body (1111) and a second pipe body (1112), the first pipe body (1111) is provided with a pipe body positioning part (14) on both sides, and the second pipe body (1112) is provided with a pipe body positioning groove (15) corresponding to the pipe body positioning part (14) and matched with the pipe body positioning part (14) on both sides.

3. The construction method for lining structure of high-pressure water-rich railway super-deep shaft according to claim 1, characterized in that: After the steel corrugated pipe (11) is installed, high molecular polymer material is grouted between the steel corrugated pipe (11) and the shaft wall.

4. The construction method for lining structure of high-pressure water-rich railway super-deep shaft according to claim 1, characterized in that: The forming template (36) in S7 has four pouring gates (17) which are uniformly distributed around the axis of the forming template (36), and the concrete is poured into the forming template (36) through the distributor (18) and the pipes which are respectively corresponding to the pouring gates (17) and connected to the distributor (18).

5. The construction method for lining structure of high pressure water-rich railway super-deep shaft according to claim 1, characterized in that: The reinforcing limiting part (23) is fixedly installed in the reinforcing sleeve (20), and the reinforcing screw rod (22) is provided with a reinforcing limiting groove (24) which extends along the axis of the reinforcing screw rod (22), and the reinforcing limiting part (23) is slidingly fitted in the reinforcing limiting groove (24).

6. The construction method for lining structure of high pressure water-rich railway super-deep shaft according to claim 1, characterized in that: The connecting rod (25) is fixedly connected to the inner side of the forming template (36) in S7, and the support hanging plate (5) is provided with a connecting assembly, which comprises 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 slidingly fitted in the support hanging plate (5), the connecting moving part is used for driving the connecting sliding seat (26) to move along the axis of the connecting rod (25), the connecting rotating seat (28) is rotatingly fitted in the connecting sliding seat (26), the connecting sleeve rod (29) is penetratingly and threadedly fitted in the connecting sliding seat (26), and the connecting sliding seat (26) is provided with a connecting limiting part which limits 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) which is insertedly fitted in the connecting rod (25).

7. The construction method of claim 6, wherein the construction method is suitable for lining a super-deep shaft of a high-pressure water-rich railway. The connecting moving part comprises a connecting motor (34) and a connecting screw rod (35), the connecting screw rod (35) is rotatingly installed in the support hanging plate (5) and is parallel to the connecting rod (25), the connecting screw rod (35) is penetratingly fitted in the connecting sliding seat (26) and is threadedly fitted with the connecting sliding seat (26), and the connecting motor (34) is used for driving the connecting screw rod (35) to rotate.

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