Method for disassembling, lifting and transferring closed type station shield to transferring line to be hoisted out

Abstract

The invention relates to the field of tunnel shield construction, particularly relates to a method for disassembling, lifting and transferring a closed type station shield to a transferring line to be hoisted out, and solves the problems of a traditional method that the construction period is long, the cost is high and traffic pressure is accelerated. The method comprises the following steps of: reserving a hoisting opening at a transferring station intersection; opening line station construction at a later period; reserving a later-period receiving well of later-period line opening shield construction at the end head of a station; opening a line shield at an early stage, and receiving and moving forwards to enable a cutter disc and a front shield to be located at the position of the reserved hoisting opening; utilizing a Loxic hoisting system to hoist a dissembled piece to be overturned and reversely moved, and hoisting from a negative one-storey and hoisting out from the reserved hoisting opening on a middle plate of a negative two-storey; and recovering temporary traffic and hanging out until the later-period opened line shield is tunneled to the later-period receiving well. According to the method disclosed by the invention, an early-edge opened line station is capped in advance, the traffic is recovered, the waiting time for receiving the shield is reduced, the construction period of the transferring station is shortened and the traffic of a road is recovered in advance; and the method has the advantages of simple process, advanced technology, safety in construction, strong practical applicability and the like.

Description

technical field [0001] The invention relates to the technical field of tunnel shield construction, in particular to a method for dismantling and lifting a closed station shield and transferring it to a transfer line for hoisting. Background technique [0002] With the acceleration of urban subway construction in my country, traffic distribution during construction seriously restricts subway construction. In order to connect construction, some cities build transfer stations at one time, but transfer stations are located at crossroads, making traffic distribution difficult. In actual construction, it often happens that after the initial opening of the platform layer and the construction of other main bodies, the shield machine must stop before it arrives at the station, and the rest of the station body can only be opened in the later stage of construction after the shield machine arrives at the station and is hoisted out. [0003] However, in the construction of the transf...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of long construction period, high cost, increased traffic pressure and affecting the construction of surrounding buildings in the traditional method of shield tunnel construction at the transfer station of the existing subway station, the present invention provides a closed station shield tunnel that is disassembled, lifted and transferred to The method of hoisting the transfer line

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