Concrete box shield tunneling and receiving construction method

Abstract

The invention discloses a construction method for a shield machine to enter a hole to receive a concrete box. The method includes the following steps that one concrete box is constructed in a shield machine receiving well; a hole door is broken by the shield machine, and tunneling is stopped; the concrete box is filled with backfill materials; the backfill materials are tunneled by the shield machine till the backfill materials enter the concrete box; the hole door is blocked; the concrete box is broken. Due to the fact that one concrete box is constructed in the receiving well, the concrete box is filled with the backfill mediums, the backfill mediums are tunneled by the shield machine and enter the box, earth pressure balance in construction for the shield machine to enter the hole for receiving is well kept, earth collapse is prevented, a construction technology applicable to complex surroundings and geological conditions is provided, and with the construction technology, the shield machine can safely and reliably enter the hole for receiving under various structural conditions.

Description

technical field [0001] The invention relates to a shield tunnel receiving construction in shield tunnel construction, in particular to a construction method for concrete box shield tunnel reception Background technique [0002] In shield tunneling construction, as a relatively large risk source, the success of shield tunnel reception construction is related to the surrounding environment and even the safety of the tunnel. Especially for the receiving construction of deep-covered soil, good water-rich and pressure-bearing sandy strata in a complex surrounding environment, the risk is self-evident. [0003] At present, the industry's internal response to high-risk sandy formation tunnel reception construction mainly includes water tunnel reception construction technology and steel sleeve tunnel reception construction technology. The specific implementation plan and steps are as follows: [0004] 1. The construction process of receiving the cave in the water: [0005] The co...

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Problems solved by technology

[0022] The technical problem to be solved by the present invention is to provide a simple, effective, safe and reliable construction method suitable for receiving caves in high-risk sandy formations in complex environments, and to solve the construction limitations, risk control uncertainties and problems existing in the existing technology. The construction method of the concrete box shield tunnel receiving with the problem of low construction efficiency

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