Shield machine capable of three-dimensional grouting

Abstract

The invention relates to a shield tunneling machine capable of realizing three-dimensional grouting. The shield tunneling machine capable of realizing three-dimensional grouting is used for solving the problem of collapse of a forward soil body in the process of construction, the problem of ground loss caused by shield tunneling of a surrounding soil body, and the problem of land subsidence caused by shield tunneling of the surrounding soil body. According to the technical scheme, the shield tunneling machine capable of realizing three-dimensional grouting comprises a shield body, a shield tunneling cutter head and a set of duct pieces, wherein the shield tunneling cutter head is installed on the front end face of the shield body, and the duct pieces are arranged in the shield body and are connected into a whole. The shield tunneling machine capable of realizing three-dimensional grouting is characterized in that a circle of advanced grouting holes are evenly formed in the edge of the shield tunneling cutter head, the grouting direction of each advanced grouting hole is arranged parallel to the axis of the shield body, a circle of shield body grouting holes are evenly formed in the side wall of the middle of the shield body, and the axes of the shield body grouting holes cross on a point of the axis of the shield body. The shield tunneling machine capable of realizing three-dimensional grouting is applicable to shield tunneling excavation in complex environment working conditions such as multi-line small clear distance, shallow earthing, small clear distance side penetration, close-range downward penetration, river crossing and silt stratums.

Description

technical field [0001] The invention relates to a shield machine, in particular to a shield machine capable of three-dimensional grouting, which is mainly used for multi-line small clear distance, shallow covering soil, small clear distance side penetration, short-distance downward penetration, and river crossing And shield tunneling under complex environmental conditions such as silt formations. Background technique [0002] In our country, the shield tunneling method has been widely used in underground engineering construction due to its advantages of small impact on the ground and high safety. [0003] Since the excavation diameter of the cutter head of the shield machine is larger than the outer diameter of the segment, after the segments are assembled and come out of the shield tail, an over-excavation gap is formed between the segment and the soil. If the over-excavation gap is not filled in time, the formation will inevitably be deformed , so that adjacent surface bu...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: for shield excavation under complex environmental conditions such as multi-line small clear distance, short-distance side penetration (underpass), crossing rivers and silt formations, in order to solve the problem of the front soil during the construction process. To solve the problems of the collapse of the shield and the stratum loss of the soil around the shield and ground subsidence, a shield machine that can realize three-dimensional grouting is provided

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