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Rapid construction method adopting self-propelled inverted arch trestle

A construction method and self-propelled technology, which is applied to mining equipment, earthwork drilling, shaft equipment, etc., can solve the problems of increasing construction time and difficulty in ensuring the radian of the top surface of the inverted arch

Pending Publication Date: 2022-06-24
中铁广州工程局集团第三工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing inverted arch formwork is not easy to ensure the curvature of the inverted arch top surface during the pouring process of the inverted arch structure concrete, and the lower formwork needs to be removed before pouring the filling structure concrete, which greatly increases the construction time

Method used

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  • Rapid construction method adopting self-propelled inverted arch trestle
  • Rapid construction method adopting self-propelled inverted arch trestle
  • Rapid construction method adopting self-propelled inverted arch trestle

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Embodiment Construction

[0036] Attached to the following Figure 1-4 This application will be described in further detail.

[0037] The embodiment of the present application discloses a rapid construction method using a self-propelled inverted arch trestle. refer to figure 1 , including the following steps:

[0038] S1. Use the excavator to cooperate with the dump truck to excavate the bottom of the tunnel and clear the slag. The construction of this process can be completed in the time of drilling the face of the face without affecting the construction of the face.

[0039] S2. Lay low side wall waterproofing boards and longitudinal blind pipes. Specifically: the longitudinal blind pipe is reverse-wrapped with geotextile and waterproof board according to the design and fixed on the primary support surface of the shotcrete at the lower part of the side wall, and the exposed lap joint of the waterproof board at the construction joint shall not be less than 1m. The waterproof board is welded with d...

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Abstract

The invention discloses a rapid construction method for a self-propelled inverted arch trestle, which comprises the following steps: when an inverted arch concrete layer is constructed and poured, drawing and pulling components arranged on an inverted arch template system are used for drawing and pulling a flexible sealing plate, so that the flexible sealing plate covers the top surface of an inverted arch; then concrete is poured into the space defined by the flexible sealing plate and the inverted arch formwork system through the pouring holes in the flexible sealing plate; the radian of the top surface of the formed inverted arch concrete layer meets the design requirement; after inverted arch concrete is formed, the flexible sealing plate is wound through the winding assembly arranged on the inverted arch formwork, automatic formwork removal is achieved, the construction efficiency is remarkably improved, and then the concrete is poured till the concrete reaches the designed elevation; and finally, concrete curing is conducted, and construction of a section of inverted arch structure is completed.

Description

technical field [0001] The present application relates to the technical field of tunnel construction, in particular to a rapid construction method for a self-propelled inverted arch trestle. Background technique [0002] In the tunnel construction project, the construction of the secondary lining inverted arch is a key part of the tunnel construction progress control. After the construction of the inverted arch is completed, it represents the initial ring formation of the tunnel, which plays an important role in controlling the initial support deformation of the tunnel and ensuring the safety of the tunnel construction. very crucial role. [0003] The current inverted arch construction process is generally as follows: excavation of the bottom of the tunnel, slag removal of the inverted arch, reinforcement of the inverted arch, the inverted arch trestle driving the inverted arch formwork system to move to the construction position, installation of the waterstop and end-blocki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D11/18
CPCE21D11/105E21D11/102E21D11/18
Inventor 耿学全高扬许兆交唐级归王洪超郑玉明周雄李宗文刘伟
Owner 中铁广州工程局集团第三工程有限公司
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