Enveloping type reinforcing method of underground structure

An underground structure and enveloping technology, which is applied in underground chambers, earthwork drilling, wellbore lining, etc., can solve the problems of large waste discharge, long construction period, and poor quality of reinforcement, and achieve high operating efficiency, Solve the impact of tunnel safety and strengthen the effect of construction quality

Pending Publication Date: 2019-04-05
王琪
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of reinforcement structure can overcome the side effects of the existing high-pressure rotary jet grouting reinforcement on the safety of the tunnel structure, the disturbance and damage to adjacent buildings (structures), the poor quality of the reinforcement, and the amount of waste generated during the construction process. Large, long construction period and other disadvantages

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  • Enveloping type reinforcing method of underground structure
  • Enveloping type reinforcing method of underground structure
  • Enveloping type reinforcing method of underground structure

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Embodiment Construction

[0032] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0033] figure 1 Shown is a schematic diagram of an enveloping reinforcement method for underground structures, and the formed jet grouting reinforcements are continuously distributed. It can be seen from the figure that the enveloping reinforcement structure of the tunnel lining and the underground structure is composed of the tunnel lining and the underground Structural structure 1, steel plate lining 2 and displacement jet grouting reinforcement 3 distributed in the formation outside the tunnel.

[0034] The high-pressure jet grouting piles 3 distributed along the outer circumference of the tunnel are distributed in a continuous overlapping manner, which has the effects of water stop and uniform ground reinforcement.

[0035] figure 2 In th...

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Abstract

The invention discloses an enveloping type reinforcing method of an underground structure. The enveloping type reinforcing structure formed by the reinforcing method can not only achieve emergency reinforcement of a tunnel but also permanently reinforce a stratum outside the tunnel to fundamentally solve the problems that stress is performed on the tunnel nonuniformly, settlement is uneven, and elliptical deformation and other appearance damage caused by insufficient passive resistance force of soil on lateral shallow tunnel sides. Under the protection of inside steel plate linings, reinforcedconcrete linings in a reinforced area can still maintain the original safety capability during drilling and punching. In addition, the construction method of the structure has little disturbance to the reinforced area and is the most effective green construction method for reinforcing a tunnel structure.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a technology for reinforcement maintenance and active protection of urban subway tunnels, underground spaces or high-speed rail and highway tunnels, and urban underground foundations. Background technique [0002] At present, a large number of tunnels and underground spaces in operation have suffered from diseases or damages of different procedures, such as structural cracks, exposed reinforcement of the lining body, spalling, corrosion, misalignment, cracking, water leakage, and large deformation of the structure, which directly affect the use of the structure. and safe operation. The repair and reinforcement of operational tunnels is currently mainly a temporary reinforcement structure, such as the reinforcement of the inner steel plate lining structure. Both the strength and strength are under control, and it is impossible to fundamentally repair the tunnel's diseas...

Claims

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Application Information

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IPC IPC(8): E21D11/10
CPCE21D11/10
Inventor 刘斐然张越
Owner 王琪
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