Duct piece fixing pile device for fixing shield tunnel duct piece and using method

Abstract

The invention discloses a duct piece fixing pile device for fixing a shield tunnel duct piece. The duct piece fixing pile device comprises a grouting outer sleeve and a grouting inner sleeve; a connecting part and a step part are arranged at the front end of the grouting outer sleeve, the connecting part is fixedly connected with the step part, a sealing cover is arranged at the rear end of the grouting outer sleeve; a supporting part is arranged at the front end of the grouting inner sleeve, the supporting part is located on the step part, the step part is fixedly connected with the supporting part, a grouting bag is connected to the rear end of the grouting inner sleeve; threads are arranged on the outer parts of the ends, close to the connecting part, of the connecting part and the grouting outer sleeve correspondingly; and the invention further discloses a construction method of the pipe piece fixing pile device, and the construction method comprises the steps of grouting hole opening, grouting liquid stirring, grouting and the like. According to the duct piece fixing pile device for fixing the shield tunnel duct piece, fixing the tunnel duct piece in time can be carried out during shield construction, so that the construction efficiency is effectively improved, and the construction quality is improved.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling engineering, in particular to a segment fixing pile device for fixing shield tunnel segments and a use method thereof. Background technique [0002] With the rapid development of my country's urban subway construction, the shield method has been widely used for its advantages of high efficiency, safety and environmental protection. However, when the shield machine is constructed under the condition of water-rich stratum, the problem of tunnel segment floating is particularly prominent. The floating of the shield tunnel segment means that the segment is affected by factors such as geology, groundwater, and synchronous slurry after it comes out of the tail shield. Causes the upward displacement of the segments. Segment partial or overall floating will directly lead to problems such as segment misalignment, cracks, damage, and even axis deviation. Come waterproof hidden danger and safety h...

AI Technical Summary

Problems solved by technology

Segment partial or overall floating will directly lead to problems such as segment misalignment, cracks, damage, and even axis deviation. Water hazards and safety hazards will affect the quality of the project

If the difference from the design elevation is too large, various methods must be used to adjust it, which will also increase the project cost and cause waste

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