A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reinforcing structure for jacking and withdrawing of jacking pipe and construction method of reinforcing structure
The reinforcing structure comprises a drainage open trench, a sedimentation tank, a high-pressure jet grouting pile, a waterproof curtain, a dewatering well and a jacking pipe back-jacking and back-exiting reinforcing mechanism. The open drain is arranged outside the construction road and the working well; the sedimentation tank is arranged beside the working well jacking pipe; the high-pressure jet grouting piles are arranged on the two sides of a hole of the working well and arranged in the jacking direction of the jacking pipe. The two groups of waterproof curtains are respectively arranged on the outer sides of the high-pressure jet grouting piles; the two sets of dewatering wells are arranged on the two sides of a hole of the working well correspondingly and arranged in the jacking direction of the jacking pipe. The jacking pipe back-jacking retreating reinforcing mechanism is arranged in the working well, and reverse back-jacking retreating of the jacking pipe is facilitated. The invention further provides a construction method of the reinforcing structure for jacking and withdrawing of the jacking pipe. When the pipeline retreats from the working well, the hole can be reinforced, the soil layer on the upper portion of the hole is effectively prevented from collapsing when the jacking pipe is jacked back, and a large amount of water is effectively prevented from gushing into the hole when the jacking pipe is jacked back.
本发明公开了一种用于顶管回顶退出加固结构，其包括排水明沟、沉淀池、高压旋喷桩、止水帷幕、降水井、顶管回顶退出加固机构；排水明沟设置在施工道路及工作井外侧；沉淀池设置在工作井顶管旁；高压旋喷桩设置在工作井的洞口两侧，且沿顶管顶进方向设置；止水帷幕有两组，分别设置在高压旋喷桩外侧；降水井有两组，分别设置在工作井的洞口两侧，且沿顶管顶进方向设置；顶管回顶退出加固机构置于工作井内，便于顶管反向回顶退出。本发明还提供一种用于顶管回顶退出加固结构的施工方法。本发明能在管道退出工作井的时候，对洞口进行加固，有效防止顶管回顶时洞口上部土层塌陷，以及有效防止顶管回顶时洞口大量涌水。
Reinforcing structure for jacking and withdrawing of jacking pipe and construction method of reinforcing structure
The reinforcing structure comprises a drainage open trench, a sedimentation tank, a high-pressure jet grouting pile, a waterproof curtain, a dewatering well and a jacking pipe back-jacking and back-exiting reinforcing mechanism. The open drain is arranged outside the construction road and the working well; the sedimentation tank is arranged beside the working well jacking pipe; the high-pressure jet grouting piles are arranged on the two sides of a hole of the working well and arranged in the jacking direction of the jacking pipe. The two groups of waterproof curtains are respectively arranged on the outer sides of the high-pressure jet grouting piles; the two sets of dewatering wells are arranged on the two sides of a hole of the working well correspondingly and arranged in the jacking direction of the jacking pipe. The jacking pipe back-jacking retreating reinforcing mechanism is arranged in the working well, and reverse back-jacking retreating of the jacking pipe is facilitated. The invention further provides a construction method of the reinforcing structure for jacking and withdrawing of the jacking pipe. When the pipeline retreats from the working well, the hole can be reinforced, the soil layer on the upper portion of the hole is effectively prevented from collapsing when the jacking pipe is jacked back, and a large amount of water is effectively prevented from gushing into the hole when the jacking pipe is jacked back.
本发明公开了一种用于顶管回顶退出加固结构，其包括排水明沟、沉淀池、高压旋喷桩、止水帷幕、降水井、顶管回顶退出加固机构；排水明沟设置在施工道路及工作井外侧；沉淀池设置在工作井顶管旁；高压旋喷桩设置在工作井的洞口两侧，且沿顶管顶进方向设置；止水帷幕有两组，分别设置在高压旋喷桩外侧；降水井有两组，分别设置在工作井的洞口两侧，且沿顶管顶进方向设置；顶管回顶退出加固机构置于工作井内，便于顶管反向回顶退出。本发明还提供一种用于顶管回顶退出加固结构的施工方法。本发明能在管道退出工作井的时候，对洞口进行加固，有效防止顶管回顶时洞口上部土层塌陷，以及有效防止顶管回顶时洞口大量涌水。
Reinforcing structure for jacking and withdrawing of jacking pipe and construction method of reinforcing structure
一种用于顶管回顶退出加固结构及其施工方法
ZHAO HAILIAN (author) / HUANG YI (author) / ZHANG HONGBO (author)
2022-11-04
Patent
Electronic Resource
Chinese
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