A combined steel pipe reaction wall for large-size rectangular jacking launch well

Abstract

The present application relates to the field of well construction, and in particular to a combined steel pipe reaction wall for a large-sized rectangular jacking pipe starting well. The combined steel pipe reaction wall for a large-sized rectangular jacking pipe starting well comprises a steel pipe, a base, a supporting device, a fixing plate and a pressure equalizing plate. One side of the base is fixedly connected to the bottom wall of the well, the supporting device is fixedly connected to an end of the base away from the bottom wall of the well, the steel pipe is horizontally placed and fixedly connected to the supporting device, the fixing plate and the pressure equalizing plate are respectively fixedly connected to the two ends of the steel pipe, and the end of the pressure equalizing plate away from the steel pipe is fixedly connected to the side wall of the well, thereby achieving the effect of reducing the cost of the reaction wall of the large-sized rectangular jacking pipe working well.

Description

Technical Field

[0001] The present application relates to the field of well body construction, and in particular to a combined steel pipe reaction wall for a large-sized rectangular jacking launch well. Background Art

[0002] At present, shield construction is generally divided into three stages: starting, normal excavation and receiving. Starting means that the shield starts to excavate from the shield base in the starting working shaft until the initial excavation is completed; after starting, it is normal excavation. Usually, a reaction wall is set on the opposite side of the excavation portal in the starting shaft. The reaction wall is fixedly connected to the shield machine. The reaction wall is used to form an antagonistic force with the shield machine when the shield machine excavates into the portal.

[0003] The existing reaction wall is generally a concrete wall made by tying steel bars, supporting formwork, and pouring concrete.

[0004] The above-mentioned prior art solutions have the following defects: when making a reaction wall in a large-sized rectangular jacking pipe working shaft, the distance between the reaction wall and the tunnel door is long, so increasing the thickness of the reaction wall requires pouring a large amount of concrete material, which is too expensive. Utility Model Content

[0005] In order to reduce the cost of the reaction wall of a large-sized rectangular jacking pipe working shaft, the present application provides a combined steel pipe reaction wall for a large-sized rectangular jacking pipe starting shaft.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A combined steel pipe reaction wall for a large-sized rectangular jacking pipe launching well comprises a steel pipe, a base, a supporting device, a fixing plate and a pressure equalizing plate. One side of the base is fixedly connected to the bottom wall of the well body, the supporting device is fixedly connected to an end of the base away from the bottom wall of the well body, the steel pipe is horizontally placed and fixedly connected to the supporting device, the fixing plate and the pressure equalizing plate are respectively fixedly connected to both ends of the steel pipe, and the end of the pressure equalizing plate away from the steel pipe is fixedly connected to the side wall of the well body.

[0008] By adopting the above scheme, a base is set, one side of the base is fixedly connected to the bottom wall of the well body, and the end of the base away from the bottom wall of the well body is used to be fixedly connected to the support device, so that the support frame is fixedly connected to the bottom wall of the well body; by setting the support device, the support frame is used to be fixedly connected to the steel pipe, so that the steel pipe is horizontally arranged between the well body portal and the side wall corresponding to the portal; by fixing a pressure equalizing plate at one end of the steel pipe, and the side of the pressure equalizing plate away from the steel pipe is fixedly connected to the side wall of the well body, the device is fixedly connected to the side wall of the well body; by fixing a fixing plate at one end of the steel pipe away from the side wall of the well body, and the end of the fixing plate away from the steel pipe is used to be connected to the shield machine, through the above combination arrangement, the device is arranged in the well body to replace the traditional reinforced concrete reaction wall, thereby achieving the effect of reducing the cost of the reaction wall of the large-size rectangular jacking working well.

[0009] Furthermore, the base includes a base plate, a telescopic rod and a loading plate, the telescopic rod is arranged between the base plate and the loading plate, the two ends of the telescopic rod are fixedly connected to the base plate and the loading plate respectively, the end of the base plate away from the telescopic rod is fixedly connected to the bottom wall of the well body, and the end of the loading plate away from the telescopic rod is fixedly connected to the supporting device.

[0010] Furthermore, the telescopic rod includes a sleeve and an inner rod, one end of the sleeve is fixedly connected to the loading plate, the end of the sleeve away from the loading plate is sleeved outside the inner rod, the sleeve is slidably connected to the inner rod, and the end of the inner rod away from the sleeve is fixedly connected to the base plate.

[0011] By adopting the above scheme, the position of the reaction wall needs to correspond to the position of the door opening in the well body, so a telescopic rod is arranged between the base plate and the loading plate, and the telescopic rod is arranged as a sleeve and an inner rod, the sleeve is arranged outside the inner rod, and the sleeve is slidably connected to the inner rod, so that the height of the telescopic rod can be controlled by controlling the relative sliding between the sleeve and the inner rod, and then the height of the base can be controlled. By controlling the height of the telescopic rod, the base can be used for the well body in the scene.

[0012] Furthermore, a clamping structure is arranged between the inner rod and the sleeve, and the clamping structure includes a T-shaped plug-in rod and a sealing block. A clamping groove is opened on the inner rod, and one end of the long rod of the T-shaped plug-in rod passes through the side wall of the sleeve and is clamped with the clamping groove of the inner rod. The other end of the long rod is fixedly connected with the short rod, and the end of the long rod of the T-shaped plug-in rod away from the short rod is threadedly connected to the sealing block.

[0013] By adopting the above scheme, a clamping structure is set, so that after the relative position relationship between the inner rod and the sleeve is determined, the clamping structure is used to lock the inner rod and the sleeve, and a clamping groove is set on the inner rod. When the relative position relationship between the sleeve and the sleeve is determined, the long rod of the T-shaped plug-in rod is passed through the side wall of the sleeve and the clamping groove; in order to fix the T-shaped plug-in rod, a blocking block is provided, and the blocking block is threadedly connected to the long rod of the T-shaped plug-in rod. At this time, the short rod of the T-shaped plug-in rod abuts against the sleeve, thereby completing the locking of the position of the inner rod and the sleeve.

[0014] Furthermore, the supporting device includes a plurality of supporting frames and a plurality of cross bars, the plurality of supporting frames are fixedly connected to the loading plate, and the plurality of cross bars are vertically arranged and fixedly connected to the plurality of supporting frames.

[0015] Furthermore, each support frame includes an outer frame and a plurality of support rods. The outer frame is placed vertically and fixedly connected to the loading plate. The plurality of support rods are arranged inside the outer frame. Each support rod is fixedly connected to the outer frame. The plurality of support rods are used to divide the support frame into a plurality of support units.

[0016] By adopting the above scheme, a plurality of support rods are arranged in the outer frame. Through the above arrangement, the plurality of support rods divide the support frame into a plurality of support units, and then the plurality of support frames are fixedly connected to the loading plate. By arranging a plurality of cross bars on the plurality of support frames, each cross bar connects the support units of the plurality of support frames on the same horizontal line, so that the entire support device is divided into a plurality of plug-in units, each of which is used to fix a steel pipe in the plug-in unit, so as to increase the supporting force of the steel pipe of the support structure.

[0017] Furthermore, a tripod is provided on the support frame near both ends of the loading board, and the tripod is fixedly connected to the support frame and the loading board respectively, and the tripod is used to increase the stability of the connection between the loading board and the support frame.

[0018] By adopting the above solution, tripods are arranged on the support frames on both sides of the support device, so that the tripods are fixedly connected to the support frames and the loading plate, thereby achieving the effect of increasing the stability of the connection between the support device and the loading plate.

[0019] Furthermore, a plurality of connectors are fixedly connected to one side of the pressure equalizing plate away from the steel pipe, each connector is fixedly connected to the pressure equalizing plate, and one end of the plurality of connectors away from the pressure equalizing plate is fixedly connected to the side wall of the well body.

[0020] By adopting the above scheme, a number of connectors are fixedly connected to the end of the pressure equalizing plate away from the steel pipe, and the connectors are plugged into and matched with the side wall of the well body, so that the pressure equalizing plate is fixedly connected to the wall, and then the entire reaction wall is fixedly connected to the side wall of the well body.

[0021] In summary, this application has the following technical effects:

[0022] 1. A combined steel pipe reaction wall for a large-sized rectangular jacking starting shaft is provided, a base is provided, one side of the base is fixedly connected to the bottom wall of the shaft, and an end of the base away from the bottom wall of the shaft is used to be fixedly connected to a support device, so that the support frame is fixedly connected to the bottom wall of the shaft, and a support device is provided, the support frame is used to be fixedly connected to the steel pipe, so that the steel pipe is horizontally arranged between the shaft portal and the side wall corresponding to the portal, and a pressure equalizing plate is fixedly connected to one end of the steel pipe, and the side of the pressure equalizing plate away from the steel pipe is fixedly connected to the side wall of the shaft, so that the device is fixedly connected to the side wall of the shaft; a fixing plate is fixedly connected to one end of the steel pipe away from the side wall of the shaft, and the end of the fixing plate away from the steel pipe is used to be connected to a shield machine. Through the above combined arrangement, the device is arranged in the shaft to replace the traditional reinforced concrete reaction wall, thereby achieving the effect of reducing the cost of the reaction wall of the large-sized rectangular jacking working shaft;

[0023] 2. By setting a telescopic rod, the position of the reaction wall needs to correspond to the position of the door opening in the well body, so a telescopic rod is set between the base plate and the loading plate, and the telescopic rod is set as a sleeve and an inner rod. The sleeve is set outside the inner rod, and the sleeve is slidably connected with the inner rod, so that the height of the telescopic rod can be controlled by controlling the relative sliding between the sleeve and the inner rod, and then the height of the base can be controlled. By controlling the height of the telescopic rod, the base can be used for the well body in the scene;

[0024] 3. By setting up a clamping structure and adopting the above scheme, the clamping structure is set so that after the relative position relationship between the inner rod and the sleeve is determined, the clamping structure is used to lock the inner rod and the sleeve. A clamping groove is set on the inner rod. When the relative position relationship between the sleeves is determined, the long rod of the T-shaped plug-in rod is passed through the side wall of the sleeve and the clamping groove. In order to fix the T-shaped plug-in rod, a blocking block is provided, and the blocking block is threadedly connected to the long rod of the T-shaped plug-in rod. At this time, the short rod of the T-shaped plug-in rod abuts against the sleeve, thereby completing the locking of the position of the inner rod and the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a combined steel pipe reaction wall for a large-sized rectangular jacking launch well in the present application;

[0026] Figure 2 It is a structural schematic diagram of the support device of the present application;

[0027] Figure 3 It is a schematic diagram of the base structure of this application;

[0028] Figure 4 It is a cross-sectional view of the base of the present application.

[0029] In the figure, 1, base; 11, base plate; 12, telescopic rod; 121, inner rod; 122, slot; 123, sleeve; 13, loading plate; 2, clamping structure; 21, T-shaped plug-in rod; 22, blocking block; 3, steel pipe; 4, supporting device; 41, supporting frame; 411, outer frame; 412; supporting rod; 42, tripod; 43, cross bar; 5, fastening bolts; 6, equalizing plate; 7, connector; 8, fixing plate. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] Reference Figure 1 The present embodiment provides a combined steel pipe reaction wall for a large-size rectangular jacking starting well, comprising a steel pipe 3, a base 1, a supporting device 4, a fixing plate 8 and a pressure equalizing plate 6. One side of the base 1 is fixedly connected to the bottom wall of the well body, the supporting device 4 is fixedly connected to one end of the base 1 away from the bottom wall of the well body, the steel pipe 3 is horizontally placed and fixedly connected to the supporting device 4, a plurality of steel pipes 3 are provided, and the plurality of steel pipes 3 are divided into two groups, each group of steel pipes 3 is linearly arranged, and the two groups of steel pipes 3 pass through the supporting device 4, the fixing plate 8 and the pressure equalizing plate 6 are respectively fixedly connected to both ends of the steel pipe 3, and the end of the pressure equalizing plate 6 away from the steel pipe 3 is fixedly connected to the side wall of the well body, and the fixing plate 8 is used to be fixedly connected to the pushing device of the jacking pipe.

[0032] Reference Figure 1 and Figure 3 In this embodiment, two bases 1 are provided, each base 1 includes a base plate 11, a telescopic rod 12 and a loading plate 13. The telescopic rod 12 is provided between the base plate 11 and the loading plate 13. The two ends of the telescopic rod 12 are respectively fixedly connected to the base plate 11 and the loading plate 13. The end of the base plate 11 away from the telescopic rod 12 is fixedly connected to the bottom wall of the well body, and the end of the loading plate 13 away from the telescopic rod 12 is fixedly connected to the support device 4. In this embodiment, a plurality of telescopic rods 12 are provided, each telescopic rod 12 includes a sleeve 123 and an inner rod 121. One end of the sleeve 123 is fixedly connected to the base plate 11, and the end of the sleeve 123 away from the base plate 11 is sleeved outside the inner rod 121. The sleeve 123 is slidably connected to the inner rod 121, and the end of the inner rod 121 away from the sleeve 123 is fixedly connected to the loading plate 13.

[0033] Reference Figure 3 and Figure 4A clamping structure 2 is provided between each sleeve 123 and the inner rod 121, and each clamping structure 2 includes a T-shaped plug-in rod 21 and a blocking block 22. A plurality of clamping grooves 122 are provided on each inner rod 121. The relative position between the inner rod 121 and the sleeve 123 is determined according to the position of the hole in the well body. When the relative positions of the inner rod 121 and the sleeve 123 are determined, one end of the long rod of the T-shaped plug-in rod 21 is passed through the side wall of the sleeve 123 and clamped with the clamping groove 122 of the inner rod 121. At this time, the short rod of the T-shaped plug-in rod 21 abuts against the side wall of the sleeve 123, and the end of the long rod of the T-shaped plug-in rod 21 away from the short rod is threadedly connected to the blocking block 22, so that the relative position of the inner rod 121 and the sleeve 123 is locked.

[0034] Reference Figure 1 and Figure 2 The supporting device 4 includes a supporting frame 41 and a cross bar 43. Several supporting frames 41 are fixedly connected to the loading plate 13. Several cross bars 43 are vertically arranged and fixedly connected to the several supporting frames 41. In this embodiment, several supporting frames 41 are arranged, and each supporting frame 41 includes an outer frame 411 and several supporting rods 412. Several supporting rods 412 are fixedly connected to the outer frame 411, and the outer frame 411 is divided into several supporting units; a cross bar 43 is arranged in each supporting unit. In this embodiment, two cross bars 43 are arranged in each supporting unit, and the two cross bars 43 in each supporting unit connect the supporting units of several supporting frames 41 on the same horizontal line; fastening bolts 5 are arranged at both ends of the several cross bars 43, and the fastening bolts 5 pass through the cross bars 43 and are threadedly connected to the supporting rods 412; the supporting frame 41 is combined with the cross bars 43 to divide the supporting frame 4 device into several plug-in units, and a steel pipe 3 is arranged in each plug-in unit.

[0035] Reference Figure 1 and Figure 2 The two ends of the steel pipe 3 are respectively fixedly connected with a fixing plate 8 and a pressure equalizing plate 6, and the end of the pressure equalizing plate 6 away from the steel pipe 3 is fixedly connected with a plurality of connectors 7, and the plurality of connectors 7 are fixedly connected to the side wall of the well body, so that the device is fixedly connected to the well body, and the end of the fixing plate 8 away from the steel pipe 3 is used to be fixedly connected to the pushing device of the jacking pipe; the support frames 41 on both sides of each group of support devices 4 are provided with tripods 42, and the tripods 42 are respectively fixedly connected with the support frames 41 and the loading plate 13, and the tripods 42 are used to further fix the support frames 41 and the loading plate 13.

[0036] The implementation principle of the combined steel pipe reaction wall for a large-sized rectangular jacking starting well in the embodiment of the present application is as follows: first, the pressure equalizing plate 6 is fixedly connected to the connector 7, and then the connector 7 is fixedly connected to the side wall corresponding to the well body opening, so that the pressure equalizing plate 6 is fixedly connected to the side wall of the well body; the length of the steel pipe 3 is determined according to the size of the well body, and the position of the two bases 1 is determined according to the length of the steel pipe 3, and each base 1 is fixedly connected to the bottom wall of the well body, and then the carrier plate 13 is driven to move according to the height of the well body door, and the movement of the carrier plate 13 drives a plurality of inner rods 121 and sleeves 123 to slide relative to each other, and the relative position of the inner rod 121 and the sleeve 123 is determined, and then the long rod of the T-shaped connector 21 is used between each sleeve 123 and the inner rod 121 to pass through the side wall and the slot 122 of the sleeve 123, and then each T-shaped A blocking block 22 is provided on the long rod of the plug-in rod 21 and is threadedly connected to the T-shaped plug-in rod 21, so as to lock the relative position of the inner rod 121 and the sleeve 123; then a plurality of support frames 41 are fixedly connected to each base 1, and then a plurality of cross bars 43 are used to connect the support frames 41 on the same horizontal line, and then the fastening bolts 5 are passed through the cross bars 43 and are threadedly connected to the support rods 412; after the above splicing combination, after the cross bars 43 are laid on each layer of the support frames 41 and the cross bars 43 are fixedly connected to the support frames 41, a layer of steel pipes is laid on the cross bars 43, so that a steel pipe 3 is fixedly connected in each plug-in unit, thereby completing the assembly of the reaction wall, and a fixing plate 8 is fixedly connected to the end of the steel pipe 3 away from the pressure equalizing plate 6, and the fixing plate 8 is used to be fixedly connected to the pushing device of the jacking pipe.

[0037] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A combined steel pipe reaction wall for a large-size rectangular jacking launch well, characterized in that: The invention comprises a steel pipe (3), a base (1), a supporting device (4), a fixing plate (8) and a pressure equalizing plate (6); one side of the base (1) is fixedly connected to the bottom wall of the well body; the supporting device (4) is fixedly connected to an end of the base (1) away from the bottom wall of the well body; the steel pipe (3) is horizontally placed and fixedly connected to the supporting device (4); the fixing plate (8) and the pressure equalizing plate (6) are respectively fixedly connected to the two ends of the steel pipe (3); the end of the pressure equalizing plate (6) away from the steel pipe (3) is fixedly connected to the side wall of the starting well; the base (1) comprises a base plate (11), a telescopic rod (12) and a loading plate (13); the telescopic rod (12) is arranged between the base plate (11) and the ... The two ends of the telescopic rod (12) are respectively fixedly connected to the base plate (11) and the loading plate (13); one end of the base plate (11) away from the telescopic rod (12) is fixedly connected to the bottom wall of the well body; and one end of the loading plate (13) away from the telescopic rod (12) is fixedly connected to the supporting device (4); the telescopic rod (12) comprises a sleeve (123) and an inner rod (121); one end of the sleeve (123) is fixedly connected to the loading plate (13); one end of the sleeve (123) away from the loading plate (13) is sleeved outside the inner rod (121); the sleeve (123) is slidably connected to the inner rod (121); and one end of the inner rod (121) away from the sleeve (123) is fixedly connected to the base plate (11).

2. The combined steel pipe reaction wall for a large-size rectangular jacking launch shaft according to claim 1, characterized in that: A clamping structure (2) is provided between the inner rod (121) and the sleeve (123), the clamping structure (2) comprising a T-shaped plug-in rod (21) and a blocking block (22), a clamping groove (122) is provided on the inner rod (121), one end of a long rod of the T-shaped plug-in rod (21) passes through a side wall of the sleeve (123) and is clamped and matched with the clamping groove (122) of the inner rod (121), the other end of the long rod is fixedly connected to a short rod, and the end of the long rod of the T-shaped plug-in rod (21) away from the short rod is threadedly connected to the blocking block (22).

3. The combined steel pipe reaction wall for a large-size rectangular jacking launch shaft according to claim 1, characterized in that: The support device (4) comprises a plurality of support frames (41) and a plurality of cross bars (43); the plurality of support frames (41) are fixedly connected to the object carrier (13); and the plurality of cross bars (43) are vertically arranged and fixedly connected to the plurality of support frames (41).

4. The combined steel pipe reaction wall for a large-size rectangular jacking launch shaft according to claim 3, characterized in that: Each support frame (41) comprises an outer frame (411) and a plurality of support rods (412); the outer frame (411) is vertically placed and fixedly connected to the loading plate (13); the plurality of support rods (412) are arranged inside the outer frame (411); each support rod (412) is fixedly connected to the outer frame (411); and the plurality of support rods (412) are used to divide the support frame (41) into a plurality of support units.

5. The combined steel pipe reaction wall for a large-size rectangular jacking launch shaft according to claim 3, characterized in that: A tripod (42) is provided on the support frame (41) near the two ends of the loading plate (13); the tripod (42) is fixedly connected to the support frame (41) and the loading plate (13) respectively; the tripod (42) is used to increase the stability of the connection between the loading plate (13) and the support frame (41).

6. The combined steel pipe reaction wall for a large-size rectangular jacking launch shaft according to claim 1, characterized in that: A plurality of connectors (7) are fixedly connected to the side of the pressure equalizing plate (6) away from the steel pipe (3), each connector (7) is fixedly connected to the pressure equalizing plate (6), and one end of the plurality of connectors (7) away from the pressure equalizing plate (6) is fixedly connected to the side wall of the well body.

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