Orientation construction method for occluded jacking pipe group construction

Abstract

The embodiment of the invention discloses a construction method for occluded pipe jacking group construction orientation, which can guide and limit the advancing direction of a pipe jacking group, and solves the problem that the direction of the pipe jacking group is difficult to adjust. The construction method for directional construction of the engaged pipe jacking group comprises the steps that S01, pilot pipes are jacked, wherein the two pilot pipes are excavated and jacked at the two ends of a preset distance; s02, assembling a combined pipe body: assembling the combined pipe body according to the shape of a to-be-excavated area between pilot pipes, wherein the combined pipe body comprises a top pipe group and guide pipes on two sides of the top pipe group; and S03, the combined pipe body is excavated and jacked forwards, specifically, the guide pipe is guided by the pilot pipe to limit the guide pipe, and the combined pipe body is excavated and jacked forwards through excavation and jacking equipment. The embodiment of the invention provides a directional construction method for occluded pipe jacking group construction. The directional construction method is used for tunnel excavation.

Description

technical field [0001] The embodiments of the present application relate to the field of tunnel engineering, and in particular, to a construction method for occlusal pipe jacking construction orientation. Background technique [0002] In the excavation of large-section undercover tunnels, the pipe curtain structure method is often used. The pipe curtain structure method is to first use excavation jacking equipment to apply a pipe curtain formed by several jacking pipes in the soil layer, and then use the pipe curtain structure method. Construction methods for excavating soil layers within structures. At present, from the previous method of jacking one pipe at a time, a method of jacking one pipe group at a time has been developed. Linear structures, such as arc structures or straight structures, can adjust the advancing direction of the jacking pipe group by adding a steering jack between the cutter head and the jacking pipe group. Adjusting the forward direction of the pi...

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Problems solved by technology

[0003] In order to solve the above problems, the embodiment of the present application provides a construction method for occlusal pipe jacking group construction orientation, which has the following advantages: it can guide and limit the advancing direction of the pipe jacking group, and solve the problem of difficult direction adjustment of the pipe jacking group

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