Construction method for shield machine to enter hole to receive concrete box

A construction method and concrete technology, which can be used in earth-moving drilling, mining equipment, tunnels, etc., can solve problems such as low construction efficiency and uncertainty in risk control, so as to prevent soil collapse, facilitate recharge, and maintain earth pressure balance. Effect

Active Publication Date: 2014-07-02
SHANGHAI TUNNEL ENG CO LTD +2
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  • Abstract
  • Description
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  • Application Information

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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

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  • Construction method for shield machine to enter hole to receive concrete box
  • Construction method for shield machine to enter hole to receive concrete box
  • Construction method for shield machine to enter hole to receive concrete box

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] see first figure 1 and figure 2 As shown, the construction method of the concrete box shield tunneling reception of the present invention mainly adopts the closed concrete box 11 mode to implement the shield tunneling reception, and constructs a concrete box 11 in the receiving shaft 21, and cooperates with image 3 As shown, the concrete box 11 is filled with foamed lightweight concrete 12, and the foamed lightweight concrete 12 reaches a compressive strength ≥ 1 MPa after pouring and curing for 3 days, which meets the cutting and bearing capacity requirements of the shield machine. The backfilling operation is carried out after the opening 13 is broken. . recombine Figure 4~6 As shown, after the strength index of the foam lightweight concrete 12 meets the design requirements, the shield tunneling 14 receiving operation i...

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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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Application Information

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IPC IPC(8): E21D9/06
Inventor 方宇林黄德中李刚张亮何国平英旭裴烈烽伍振志郭亮黄俊王延长柳宪东朱汉华
Owner SHANGHAI TUNNEL ENG CO LTD
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