Child-mother shield tunneling machine construction method

Abstract

The invention provides a child-mother shield tunneling machine construction method. When a mother shield tunneling machine and a child shield tunneling machine perform tunneling together, a mother machine shield body and a child machine shield body are connected together, a muck conveying system in the child machine shield body conveys the excavated muck to the rear part, and a mother machine propulsion system and a mother machine assembly machine complete the propulsion of shield and the assembly of segments; when the child shield tunneling machine is started, the mother machine shield body and the child machine shield body are disconnected and separated, and the child shield tunneling machine uses a counterforce frame in the mother machine shield body as the base for starting; and when the child shield tunneling machine performs tunneling, the muck conveying system in the child machine shield body conveys the excavated muck to the rear part, and the child machine propulsion system and a child machine assembly machine in the shield tunneling machine complete the propulsion of the shield and the assembly of segments. The child-mother shield tunneling machine construction method cansolve the one-excavation forming problem in the shield tunneling process of a non-circular-cross-section tunnel, saves the surface space, shortens the construction period, and improves the tunnelingefficiency and economy.

Description

technical field [0001] The invention relates to tunnel construction equipment, in particular to a construction method for a mother-to-child shield machine. Background technique [0002] Shield tunnel construction is widely used in urban subway tunnels, underground highway tunnels and various underground engineering constructions. With the increase in demand, the design of shield machines is developing in the direction of multi-shield tunneling. Subway station construction and various tunnel docking base station construction are important parts of the overall underground construction. Currently, this part of the construction and tunnel excavation are carried out independently. Since the underground passage tunnel space is a non-circular cross-section, it needs to be formed by conventional shield tunneling multiple times. Low efficiency and high cost. Therefore, it is considered that the underground base station is formed once and can realize the double-round mother-child shi...

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a construction method of a mother-child shield machine, which solves the problem of the existing shield machine in dealing with the excavation of a non-circular cross-section tunnel and realizes the conversion of the independent driving conditions of the mother-child shield machine, which can save shield machines The construction ground space realizes one-time excavation and forming of the base station construction, the distance between the double circle lines is adjustable, and at the same time, it can quickly realize the starting function of the mother-child split excavation

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