Importance

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Abstract

A working method for a trench-cutting device for underground construction, including the following steps: 1) setting up working platforms in working wells at two ends; 2) mounting the trench-cutting device so that the two ends of the trench-cutting device are each in one of the two working wells respectively; 3) enabling the trench-cutting device to cut along a contour line of an underground construction section; and 4) excavating earth along the contour line. Also disclosed is a trench-cutting device for underground construction, consisting of an excavating device (1) and translation devices (2); the excavating device (1) mainly consists of a frame (1-1), a cutting chain (3) and transmission devices (1-2); the frame (1-1) consists of a frame (1-1-1) in a trench and two end frames (1-1-2) outside of the trench; the two end frames (1-1-2) are respectively connected to the translation devices (2) in the two working wells, the transmission devices (1-2) are mounted on the two end frames (1-1-2), and the translation devices (2) are both arranged in the working wells at the two ends. The working platform is set up in four working wells, concrete may be filled in behind as the trench-cutting device excavates the earth, and then after a closed cavity is formed, work is conducted in the cavity. Also disclosed is a trench-cutting device.

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First Claim