U-shaped plain concrete ground connecting wall steel adding sleeve shield structure and receiving method thereof

Abstract

The invention discloses a U-shaped plain concrete ground connecting wall plus steel sleeve shield structure, which comprises a U-shaped plain concrete ground connecting wall, a wall seam water-stopping high-pressure rotary spraying pile, a three-axis stirring pile reinforcement, a single row of high-pressure rotary jetting Spray piles, dewatering wells, ground connection walls of station enclosure structures, side walls of station main structures, steel sleeves, front and rear flange connection bolts, lifting lugs, material inlets, brackets, pre-embedded ring plates for portals, reaction frames , straight braces of steel pipes, diagonal braces of steel pipes, and embedded parts of steel plates; the present invention can overcome many difficulties and risks brought about by unfavorable geological conditions such as soft ground, buried depth of tunnels and high water levels, etc., and has strong adaptability. The implementation is safe and reliable, and this construction method cancels the water-stop cord, which simplifies the shield receiving process, and the steel sleeve device can be recycled, with good economy and advanced technology; a closed water-stop reinforcement area is formed at the receiving end of the shield , with steel sleeve receiving, safe and controllable.

Description

technical field [0001] The invention relates to a shield receiving method, in particular to a U-shaped plain concrete ground connecting wall plus steel sleeve shield structure and a receiving method thereof, which belong to the field of tunnel construction. Background technique [0002] With the vigorous development of my country's economic construction, the remaining space in the city is getting smaller and smaller, and public transportation is becoming more and more congested, which seriously affects the process of economic construction; therefore, the development of underground rail transit has become an inevitable trend of urban development today; shield Due to its high construction safety, high degree of automation, high construction efficiency, and low interference to the surrounding environment, the construction method has become the preferred construction method for tunnel construction in underground rail transit intervals. [0003] The shield receiving of the shield ...

AI Technical Summary

Problems solved by technology

However, in actual engineering, especially when the tunnel is buried deep or in a water-rich sand layer, it is difficult to guarantee the reinforcement effect only by using the traditional three-axis stirring pile end reinforcement method, and it cannot meet the requirements for safe reception of shield tunneling; therefore, Aiming at the above problems, a receiving method of U-shaped plain concrete ground connection wall plus steel sleeve shield structure is proposed

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