Receiving method of reverse excavation shield for underground excavation tunnel
A receiving method and underground excavation technology, which is applied in tunnels, earthwork drilling, mining equipment, etc., can solve the problem that the shield machine cannot complete the receiving of the shield machine, and achieve the effects of improving waterproof quality, low cost, and good economic effects
Inactive Publication Date: 2017-12-19
BCEG CIVIL ENG
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method for receiving a back-excavated shield tunnel in an underground excavation tunnel, so as to solve the technical problem that the shield machine cannot complete the reception of the shield machine in a section without receiving conditions
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[0028] Hereinafter, an embodiment of the shield receiving method for back-excavation tunnels of the present invention will be described with reference to the accompanying drawings.
[0029] The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.
[0030] The accompanying drawings in this specification are schematic diagrams, which assist in explaining the concept ...
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The invention discloses a method for receiving a back-excavation shield tunnel in a tunnel, which comprises the following steps: step 1, constructing a tunnel in front of a predetermined receiving position of the shield; step 2, reinforcing the soil body in the receiving section of the shield tunnel; step 3. After the shield machine is driven to the predetermined receiving position of the shield tunnel, the cover construction shall be carried out on the closed working face of the underground excavation tunnel; step 4, the section shall be excavated along the direction of the underground excavation tunnel towards the predetermined receiving position of the shield tunnel; excavation to The shield cutter head is fully exposed, and part of the shield shell is exposed; step 5, seal the tunnel surface between the initial support of the underground excavation and the shield shell; step 6, reinforce the inside of the underground excavation tunnel; step 7, place the The parts of the shield machine except the shield shell are disassembled in the tunnel and transported out; step 8, waterproofing construction in the underground excavation tunnel, waterproofing construction in the shield shell, and then the remaining secondary lining construction. The above invention solves the technical problems of dismantling, dismantling and transporting in the tunnel of the shield machine in the section where the conditions for receiving and hoisting are not available.
Description
technical field [0001] The invention belongs to the technical field of shield tunneling, and in particular relates to a receiving method for back-excavating shield tunnels in buried tunnels. Background technique [0002] The Shield Method is a fully mechanized construction method in underground excavation construction. It propels the shield machine in the ground, and supports the surrounding rock through the shield casing and segments to prevent collapse into the tunnel. At the same time, the soil is excavated with a cutting device in front of the excavation face, transported out of the hole by an excavation machine, pushed in by a jack at the rear, and assembled with prefabricated pieces to form a mechanized construction method of the tunnel structure. [0003] Compared with traditional construction methods, shield tunneling method is widely used in rail transit construction because of its high safety, fast construction speed and low cost. In traditional shield constructio...
Claims
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IPC IPC(8): E21D9/06
Inventor 张东剧亮游大江周林生王利民帅玉兵马云新刘耀轩李军军杜明山高琨刘硕唐永福孙青龙王浩陈文
Owner BCEG CIVIL ENG