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Pipe-jacking construction method of underground passage and tunnel structure

A technology of tunnel structure and underground passage, applied in tunnels, tunnel linings, underground chambers, etc., can solve the problems of difficult construction, slow construction progress, inconvenient demolition, etc. Effect

Active Publication Date: 2015-05-13
吴元修
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are some problems in the construction of the above-mentioned construction method. ①The large excavation method is difficult to demolish because there are many pipelines underground.
②Mine excavation construction method has disadvantages such as slow construction progress and poor safety guarantee
As the size of the structure increases and the excavation distance increases, the hoisting equipment and jacking equipment will not be able to meet the construction needs
[0004] With the development of urban traffic and the increase of people's flow, structures with small structural sizes can no longer meet the requirements of people's travel, and the demand for building underground passages and structures with large structural sizes is increasing. Therefore, a new underground passage and tunnel is urgently needed Construction method

Method used

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  • Pipe-jacking construction method of underground passage and tunnel structure
  • Pipe-jacking construction method of underground passage and tunnel structure
  • Pipe-jacking construction method of underground passage and tunnel structure

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Embodiment

[0031] A construction method for pouring concrete in the relay room of underground channel tunnel pipe jacking construction, the construction method is divided into the following steps:

[0032] Step 1: see figure 1 , after the shield machine is installed in place, the concrete frame member is prefabricated at the back of the shield. The concrete frame member is divided into two sections, the first section is 4 to 6 meters long, and the second section is 2 to 3 meters long. The first section is called the balance section (or called the movable section). The function of the balance section is to transfer the reaction force generated by the shield excavation. The reaction force transmitted by the base plate is transferred to the base plate, and a concrete support pier is set on the base plate to transmit the force backward, and the support pier transmits the force backward through the force transmission column. The second section is called the anchor section (or fixed section)....

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Abstract

The invention provides a pipe-jacking construction method of an underground passage and a tunnel structure. According to the pipe-jacking construction method disclosed by the invention, by carrying out repeated pouring and pipe-jacking construction on the scene, the bore diameter of a tunnel cannot be restricted by a hoisting device during construction, the bore diameter can be enlarged, and the advance distance can be prolonged; meanwhile, follow-up work can be simultaneously carried out after forward advancing, and shortening construction period; continuous operation can be carried out without stopping; the disassembling of underground pipelines can be reduced, and the construction cost can be correspondingly reduced.

Description

technical field [0001] The invention belongs to the technical field of construction of underground passages and underground tunnels, and in particular relates to a pipe jacking construction method for underground passages and tunnel structures. Background technique [0002] At present, the construction methods commonly used in the construction of underground passages and subway tunnels include large-scale excavation construction, mine excavation construction method and shield mechanical excavation pipe jacking construction method. [0003] There are some problems in the construction of the above-mentioned construction method. ①The large excavation method is difficult to demolish because there are many pipelines underground. ②Mine excavation construction method has disadvantages such as slow construction progress and poor safety guarantee. ③In the shield tunneling mechanical tunneling and pipe jacking construction method, the subsequent concrete frame needs to be prefabricat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06E21D11/10
Inventor 吴元修
Owner 吴元修
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