Pipe joint retaining device for pipe-jacking method tunnel engineering

Abstract

The invention discloses a pipe joint retaining device for pipe-jacking method tunnel engineering. The pipe joint retaining device comprises a hydraulic pump, a rotary shaft gear, a retaining pin, jacking heads and hydraulic rods. Retaining clamping grooves are formed in a retaining plate, the retaining plate is connected with the rotary shaft gear through a connector, a bottom supporting structure and a pipe jacking pipe joint are connected through supporting columns, a motor is connected with the hydraulic pump, a back supporting structure is connected with a hydraulic jack set, a controller and a hydraulic unit are arranged at the lower end of the hydraulic jack set, a side support is connected with a vertical support, and the jacking heads are connected with the hydraulic rods. According to the pipe joint retaining device for pipe-jacking method tunnel engineering, an existing pipe joint retaining device for pipe-jacking method tunnel engineering is used in combination for creative design, according to the pipe joint retaining device for pipe-jacking method tunnel engineering, the treatment scheme that the motor, the hydraulic pump, the retaining plate and the side support are combined is adopted for retaining the pipe jacking pipe joint, and the retaining effect is greatly improved.

Description

technical field [0001] The invention relates to the technical field of pipe joint retreat prevention for pipe jacking tunnel engineering, in particular to a pipe joint retreat prevention device for pipe jacking tunnel engineering. Background technique [0002] The pipe jacking tunnel construction technology has been widely used in urban underground highways, pedestrian passages, water supply and drainage pipelines and other tunnel projects due to its large-scale equipment and the promotion of rectangular pipe jacking equipment. However, after the jacking of a pipe section is completed, the jack must be retracted before the next pipe section is hoisted into the well. Because the resistance in the front section of the pipe jacking head is very large, the pipe jacking head and the pipe section will retreat together for 20 ~30cm, which will cause the damage of the earth pressure balance between the pipe jacking head and the soil in front, which will easily cause the soil in fron...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a pipe joint stop back device for pipe jacking method tunnel engineering, to solve the problem that the currently used stop back device proposed in the above background technology does not use mechanical stop back, but only uses a simple support structure to resist and stop. The retreat effect is not very ideal. Some hydraulic control is integrated and cannot be controlled separately, so that there is room for the pipe joint to retreat during the process of jacking the previous section of pipe into the well after the next section is hoisted into the well.

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