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Pedestrian passage frame profile steel reinforcing device and construction method thereof

A technology for pedestrian passages and reinforcement devices, which is applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve the difficulty in controlling the stratum loss of shield tunnels crossing the pedestrian passages, the high risk of uplift of the upper pedestrian passages, and the inability to effectively solve problems, etc. problems, to achieve the effect of good anchoring effect, saving installation time and fast construction

Pending Publication Date: 2022-07-01
中国铁建昆仑投资集团有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the growth of the domestic economy and the improvement of scientific research strength, in the construction of tunnels and subways, the shield tunneling method has become a relatively mature construction technology; however, in the planning of urban subways, it is necessary to pass shield tunnels through urban downtown areas and large residential areas In order to alleviate the traffic pressure, how to ensure that the shield crossing section does not affect other buildings is the top priority of the construction; when the shield tunnel passes through the railway section, there may be operating railways and existing underground pedestrian passages above the tunnel, and the shield tunnel crossing It is difficult to control the stratum loss of the pedestrian passageway, resulting in a greater risk of uplift and settlement of the upper pedestrian passageway, a long rectification period in the later stage, limited countermeasures, and once the uplift is caused, it cannot be recovered; therefore, the use of the pedestrian passageway must be ensured during the shield tunneling process;
[0003] In order to ensure the stability of the shield tunnel itself and the upper underground walkway during shield construction, ensure the smooth passage of the shield tunnel, and reduce the risk of settlement of the underground walkway caused by the construction of the shield tunnel under the underground walkway, it is necessary to construct the shield tunnel Before or during the construction of the shield tunnel, certain reinforcement measures are taken for the underground pedestrian passages around the shield tunnel, that is, the pedestrian passages are reinforced; but at present, there is no corresponding mature support structure and technology for the reinforcement of the pedestrian tunnels. As a result, the problems in the above-mentioned prior art cannot be effectively solved;

Method used

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  • Pedestrian passage frame profile steel reinforcing device and construction method thereof
  • Pedestrian passage frame profile steel reinforcing device and construction method thereof
  • Pedestrian passage frame profile steel reinforcing device and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Example 1: refer to the attached Figure 1-15 A profiled steel reinforcement device for a pedestrian passage frame is shown, comprising a profiled steel frame and a passage reinforcement structure, wherein the passage reinforcement structure is symmetrically arranged on the outer side of the profiled steel frame, and acts with the inner wall of the pedestrian passage to reinforce the pedestrian passage;

[0049] The profiled steel frame includes a side frame profiled steel 1, a top profiled steel 2 and a bottom profiled steel. The side profiled steel 1 is symmetrically arranged between the top profiled steel 2 and the bottom profiled steel, and is connected to the top profiled steel 2 and the bottom profiled steel through the adjusting mechanism 5. The bottom frame is connected with profiled steel to form a profiled steel frame;

[0050] The channel reinforcement structure is a reinforcement steel plate 3, the reinforcement steel plate 3 is connected with the profiled s...

Embodiment 2

[0065] Embodiment 2: Different from Embodiment 1, in order to further connect the frame steel reinforcement device of the pedestrian passage to the pedestrian passage and the backside structure of the passage, to enhance the integrity of the reinforcement structure and the solid, and prevent the surrounding and pedestrian passage structures Settlement, the grouting anchor rod 8 sequentially includes a tail end anchor section, a standard anchor section 81 and a front end anchor section from the outside to the inside. It is connected by a screw 82 and is closed at the front end of the front end anchor section, and a tapered head is provided at the front end of the front end anchor section.

[0066] Preferably, the tail end anchor section, the anchor section 81 and the front end anchor section all include a grouting cylinder 84 , a retaining wall sleeve 85 and an anchoring connecting rod 86 , wherein the retaining wall sleeve 85 is arranged on the grouting cylinder 84 . The outer...

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Abstract

The invention discloses a pedestrian path frame profile steel reinforcing device and a construction method thereof.The reinforcing device comprises a profile steel frame and a path reinforcing structure, and the path reinforcing structure is arranged on the outer side of the profile steel frame and interacts with the inner wall of a pedestrian path; the profile steel frame comprises side frame profile steel, top frame profile steel and bottom frame profile steel, and the side frame profile steel is arranged between the top frame profile steel and the bottom frame profile steel and connected with the top frame profile steel and the bottom frame profile steel through an adjusting mechanism; the channel reinforcing structure is a reinforcing steel plate, the reinforcing steel plate is connected with the profile steel frame through a hydraulic telescopic mechanism, and a grouting anchor rod and a buffering mechanism are further arranged on the reinforcing steel plate. The device is arranged in an operation railway pedestrian path above a tunnel, during use, the stability and safety of the pedestrian path can be improved through reinforcement of the profile steel frame and the path reinforcing structure, and stratum loss caused by shield construction can be reduced, so that stratum settlement and the influence on adjacent buildings are reduced; the device has the characteristics of safety and good supporting effect.

Description

technical field [0001] The invention relates to the technical field of section steel reinforcement, in particular to a pedestrian passage frame section steel reinforcement device and a construction method thereof. Background technique [0002] With the growth of the domestic economy and the improvement of scientific research strength, the shield tunnel construction technology has become a relatively mature construction technology in tunnel and subway construction; however, in urban subway planning, shield tunnels need to pass through urban downtown areas and large residential areas In order to relieve the traffic pressure, how to ensure that each shield tunnel crossing section does not affect other buildings is the top priority of the construction; in the railway section where the shield tunnel passes, there may be operating railways and existing underground pedestrian passages above the tunnel, and the shield tunnel passes through the railway section. The stratum loss of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045E02D5/74
CPCE02D29/045E02D5/74
Inventor 刘金山许彦旭邱童春裴佳锋宋战平张玉伟刘乃飞周鹏远史贵林何十美
Owner 中国铁建昆仑投资集团有限公司
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