Counter-force device of rectangular jacking pipe and construction structure of counter-force device

Abstract

The utility model relates to the technical field of construction engineering, and particularly discloses a counter-force device of a rectangular jacking pipe and a construction structure of the counter-force device, the counter-force device of the rectangular jacking pipe comprises a plurality of groups of steel support frames which are transversely arranged at intervals, and a plurality of steel support columns which are arranged in an array are supported by the plurality of groups of steel support frames; the steel supporting frame comprises a set of vertical frames arranged in parallel, a set of transverse supports arranged in parallel are arranged on the set of vertical frames, and the steel supporting columns are supported through the transverse supports. Triangular positioning blocks for limiting the steel supporting columns are arranged on the transverse supports and located on the two sides of the steel supporting columns. The steel structure design is adopted, counter-force supporting can be continuously and stably provided, hoisting and transferring can be integrally carried out after construction is completed, compared with a traditional reinforced concrete counter-force device, breaking is not needed, reutilization can be achieved, the resource utilization rate is greatly increased, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and particularly relates to a reaction force device for rectangular pipe jacking and its construction structure. Background Technique

[0002] During the construction of the subway, the construction pipelines in the city are complex, there are many surrounding buildings and structures, the impact on the existing traffic roads is serious, and the construction period is long. The traditional excavation methods such as open cut method, cover and cut method, and mined tunneling method are affected by geological and hydrological conditions, surrounding environment, and buildings and structures, and there are problems in terms of safety, economy, and applicability.

[0003] In order to minimize the excavation of the urban surface, in recent years, trenchless technology has developed rapidly and been widely applied. As a trenchless technology, the rectangular pipe jacking construction technology is widely used in cross-street passages, subway construction, etc., providing an optional construction plan for the safe and economic construction of urban subways.

[0004] The rectangular pipe jacking construction technology has little impact on the surrounding environment and good construction effects. The application of the rectangular pipe jacking technology can significantly shorten the construction period. The application of the rectangular pipe jacking construction technology in subway construction not only solves many problems in the construction process, but also promotes the innovation and popularization of related technologies.

[0005] The application of the rectangular pipe jacking construction technology in subway construction not only improves the safety and economy of construction, but also effectively shortens the construction period, promoting the innovation and popularization of related technologies.

[0006] The construction sites in the central urban area are often narrow, with complex pipelines and dense surrounding buildings. It is difficult to implement the traditional excavation construction methods or the risks are relatively high. As a trenchless technology, the rectangular pipe jacking construction technology can carry out construction without damaging the ground traffic and the surrounding environment, having significant advantages.

[0007] During construction, due to the large cross-section of the rectangular pipe jacking, sufficient reaction force support needs to be provided during the jacking process. The traditional reaction force support adopts a reinforced concrete structure. Although it can meet the normal jacking requirements, there are some disadvantages, mainly including the following aspects:

[0008] (1) Material waste: The traditional reaction frame is a temporary reinforced concrete structure, which needs to be demolished after the construction is completed. This not only causes waste of concrete and steel materials, but also increases the construction cost and resource consumption;

[0009] (2) Long construction period: The cast-in-place reinforced concrete structure reaction frame needs a long time to reach the use strength during the construction and maintenance processes, which will occupy the construction period and affect the overall construction progress. Moreover, the demolition after use further prolongs the construction period;

[0010] (3) Construction complexity: Traditional reaction frames need to be adjusted and reinforced multiple times during construction, increasing the complexity and difficulty of construction.

[0011] (4) Poor economy: Traditional reaction frames need to be demolished after construction, which not only increases the construction cost but also reduces the economy of construction.

[0012] (5) Environmental impact: Traditional reaction frames generate a large amount of construction waste and dust during construction, causing certain impacts on the surrounding environment. Summary of the Invention

[0013] The purpose of the present utility model is to provide a reaction force device for rectangular pipe jacking aiming at the defects existing in the prior art. It adopts a steel structure design, can continuously and stably provide reaction force support, and can be hoisted and transported as a whole after construction. Compared with the traditional reinforced concrete reaction force device, it does not need to be demolished, can be reused, greatly improves the resource utilization rate, and reduces the construction cost.

[0014] The technical solution of the present utility model is: A reaction force device for rectangular pipe jacking, including multiple groups of steel support frames arranged at intervals horizontally, and multiple steel support columns arranged in an array are supported by the multiple groups of steel support frames. Both ends of the steel support columns extend beyond the steel support frames.

[0015] The steel support frame includes a group of vertical frames arranged in parallel. A group of horizontal supports are arranged on the group of vertical frames and support the steel support columns through the horizontal supports.

[0016] Triangular positioning blocks for limiting the steel support columns are arranged on both sides of the steel support columns on the horizontal supports.

[0017] A group of sealing plates are arranged at the top of the vertical frames, and lifting lugs are arranged on the sealing plates.

[0018] Preferably, a group of scissor-shaped supports are arranged at intervals vertically on the vertical frames.

[0019] Preferably, a backing plate is arranged at the bottom of the vertical frames.

[0020] A construction structure of a reaction force device for rectangular pipe jacking, characterized in that: it includes the above-mentioned reaction force device for rectangular pipe jacking;

[0021] A working shaft is arranged at the front side of the reaction force device for rectangular pipe jacking. A steel rear abutment, an oil cylinder frame, a concrete pipe section and a pipe jacking machine are successively arranged at the rear side of the reaction force device for rectangular pipe jacking in the backward direction;

[0022] Both ends of the steel support columns respectively support the side wall of the working shaft and the steel rear abutment.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] 1. The steel structure design is adopted, which can continuously and stably provide reaction force support. After the construction is completed, it can be hoisted and transported as a whole. Compared with the traditional reinforced concrete reaction device, it does not need to be demolished and can be reused, greatly improving the resource utilization rate and reducing the construction cost;

[0025] 2. The reaction device is processed and formed in the factory. After being transported to the construction site, it only needs to be simply assembled and then can be put into use. Compared with the traditional reinforced concrete reaction device, it saves the time required for construction, maintenance and later demolition, saves the construction period and improves the construction efficiency;

[0026] 3. During the construction process, the steel frame structure can arrange construction monitoring equipment on the reaction device to monitor the jacking force in real time. If the abnormal jacking force is found, measures can be taken quickly to ensure the construction safety;

[0027] 4. The reaction device adopts a steel structure and does not need to be demolished after the construction is completed. Compared with the traditional reinforced concrete structure, it does not generate construction waste and dust pollution in terms of environmental protection, which is beneficial to environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the front view structural schematic diagram of the utility model;

[0029] Figure 2 is the right view structural schematic diagram of the utility model;

[0030] Figure 3 is the top view structural schematic diagram of the utility model;

[0031] Figure 4 is the front view structural schematic diagram of the steel support frame;

[0032] Figure 5 is the right view structural schematic diagram of the steel support frame;

[0033] Figure 6 is the use reference diagram of the utility model;

[0034] In the figure: 1. Steel support frame, 2. Steel support column, 3. Crawler crane, 4. Working well, 5. Lifting lug, 6. Sealing plate, 7. Vertical frame, 8. Scissor support, 9. Triangular positioning block, 10. Horizontal support, 11. Base plate, 12. Steel backrest, 13. Oil cylinder frame, 14. Concrete pipe section, 15. Pipe jacking machine. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following further describes the utility model in conjunction with the drawings and embodiments. Embodiment 1

[0036] As shown in Figures 1 to 3 , a reaction force device for a rectangular pipe jacking includes multiple groups of steel support frames 1 arranged at intervals horizontally, and multiple steel support columns 2 arranged in an array are supported by the multiple groups of steel support frames 1.

[0037] As shown in Figure 4 and Figure 5 , the steel support frame 1 includes a group of vertical frames 7 arranged in parallel, a group of horizontal supports 10 arranged in parallel are provided on the group of vertical frames 7, and the steel support columns 2 are supported by the horizontal supports 10.

[0038] Triangular positioning blocks 9 for limiting the steel support columns 2 are provided on both sides of the steel support columns 2 on the horizontal supports 10, and both ends of the steel support columns 2 extend beyond the steel support frame 1.

[0039] In this embodiment, the reaction force device for the rectangular pipe jacking is designed as a whole with a steel structure and can provide reaction force support continuously and stably.

[0040] A group of sealing plates 6 are provided at the top of the vertical frame 7, and lifting lugs 5 are provided on the sealing plates 6. After the construction is completed, it can be hoisted and transported as a whole. Compared with the traditional reinforced concrete reaction force device, there is no need to break it and it can be reused, greatly improving the resource utilization rate and reducing the construction cost.

[0041] A group of scissor-type supports 8 arranged at intervals vertically are provided at the middle position of the vertical frame 7 to increase the structural stability, and a backing plate 11 is provided at the bottom of the vertical frame 7 for increasing the support area. Embodiment 2

[0042] As shown in Figure 6 , a construction structure of a reaction force device for a rectangular pipe jacking includes the reaction force device for the rectangular pipe jacking in Embodiment 1.

[0043] A working well 4 is provided at the front side of the reaction force device for the rectangular pipe jacking, and a steel backrest 12, an oil cylinder frame 13, a concrete pipe joint 14 and a pipe jacking machine 15 are successively arranged backward at the rear side of the reaction force device for the rectangular pipe jacking.

[0044] Both ends of the steel support column 2 respectively support the side wall of the working well 4 and the steel backrest 12.

[0045] During assembly, a steel wire rope is inserted into the lifting lug 5, and a crawler crane 3 is used to lift the steel wire rope. First, the reaction force device for the rectangular pipe jacking is slowly moved above the working well 4, and then the crawler crane 3 is operated to move the reaction force device for the rectangular pipe jacking to the ground between the steel backrest 12 and the working well 4 for placement, and then it is connected and installed. After all the installations are completed, the oil cylinder frame 13 can be started to carry out jacking construction on the concrete pipe joint 14 and the pipe jacking machine 15.

[0046] The reaction force device of the rectangular pipe jacking of the present utility model is processed and formed in the factory. After being transported to the construction site, it only needs to be simply assembled and then can be put into use. Compared with the traditional reinforced concrete reaction force device, it saves the time required for construction, curing, and later demolition, saves the construction period, and improves the construction efficiency.

[0047] During the construction process, the steel frame structure can arrange construction monitoring equipment on the reaction force device to monitor the jacking force in real time. If abnormal jacking force is found, measures can be taken quickly to ensure the construction safety.

[0048] After the construction is completed, it does not need to be demolished. Compared with the traditional reinforced concrete structure, it does not produce construction waste and dust pollution in terms of environmental protection, which is beneficial to environmental protection.

[0049] The present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present utility model, and the changed content still belongs to the protection scope of the present utility model.

Claims

1. A reaction force device for a rectangular pipe jacking, characterized in that: It includes multiple groups of steel support frames arranged at horizontal intervals, and multiple steel support columns arranged in an array are supported by the multiple groups of steel support frames, and both ends of the steel support columns extend beyond the steel support frames; The steel support frame includes a group of vertical frames arranged in parallel, a group of horizontal supports are arranged on the group of vertical frames, and the steel support columns are supported by the horizontal supports; Triangular positioning blocks for limiting the steel support columns are arranged on both sides of the steel support columns on the horizontal support.

2. The reaction force device of a rectangular pipe jacking according to claim 1, characterized in that: A group of sealing plates are arranged at the top of the vertical frame, and lifting lugs are arranged on the sealing plates.

3. The reaction force device of a rectangular pipe jacking according to claim 1, characterized in that: A group of scissor-type supports are arranged on the vertical frame at vertical intervals.

4. The reaction force device of a rectangular pipe jacking according to claim 1, characterized in that: A backing plate is arranged at the bottom of the vertical frame.

5. Construction structure of reaction device for rectangular pipe jacking, characterized in that: It includes the reaction device of the rectangular pipe jacking described in any one of claims 1 to 3; A working shaft is arranged at the front side of the reaction device of the rectangular pipe jacking, and a steel backrest, an oil cylinder frame, a concrete pipe section and a pipe jacking machine are successively arranged at the rear side of the reaction device of the rectangular pipe jacking; Both ends of the steel support column respectively support the side wall of the working shaft and the steel backrest.

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