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Mining-method tunnel inner shield receiving construction method

A construction method and mining method technology, applied in tunnels, tunnel linings, mining equipment, etc., can solve the problem of low utilization rate of urban underground space, and achieve the effect of ensuring sustainable development and wide application and solving limitations.

Active Publication Date: 2015-04-08
SHANGHAI FOUND ENG GRP
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AI Technical Summary

Problems solved by technology

[0002] As an important construction method of urban rail transit, shield tunneling has been applied in the rail transit construction of domestic cities such as Shanghai and Beijing for more than 20 years. After more than 20 years of development, the construction technology has become increasingly mature. The utilization rate of the space is not high, and the conditions for the development of underground space are relatively good. Most of the shield receiving construction of the previous shield method tunnels is located in the working shaft of the station

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  • Mining-method tunnel inner shield receiving construction method
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  • Mining-method tunnel inner shield receiving construction method

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Embodiment Construction

[0060] The shield receiving construction method in the built mine method tunnel of the present invention, concrete construction steps are as follows:

[0061] (1) Determine the reinforcement scope and pouring method ( figure 1 , shown in 2)

[0062]According to the working conditions, it is determined to pour a section of plain concrete reinforcement 2 with a length of about 15m in the clear space of the initial lining 1 in the built mine tunnel. At this time, the remaining 1.7m inverted arch (hard rock 4) has not yet been blasted, so the pouring method is to choose multiple layers of pouring, each layer is 2m thick, and the length is about 4~6m. Remove formwork and supports in time when the reinforcement strength is reached;

[0063] (2) Drainage pipeline made by blasting water seepage on the tunnel surface

[0064] Before the pouring of each layer, bricks should be used to build a drainage ditch on the pouring base surface, and a plastic film should be fixed on the palm ...

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Abstract

The invention relates to a mining-method tunnel inner shield receiving construction method. The mining-method tunnel inner shield receiving construction method comprises the specific construction steps: 1. filling plain concrete into a mining-method tunnel and reinforcing; 2. pre-burying one circle of circular-arc steel plate on a second lining at the crossed position of the tunnel; 3. manufacturing a shield receiving frame in the mining-method tunnel; 4. carrying out water-sealing and grouting construction before receiving a shield; 5. controlling parameters in a shield receiving process; 6. receiving an annular segment and a circular-arc steel plate welded sealing steel plate; 7. carrying out grouting construction on a shield tunnel receiving section; and 8. manufacturing a well connector in the mining-method tunnel. According to the mining-method tunnel inner shield receiving construction method, a series of construction problems of engagement of a shield tunnel with the mining-method tunnel, manufacturing of a temporary receiving frame, water sealing before a shield is received, setting of construction parameters of the shield entering the mining-method tunnel, manufacturing of a well connector and the like when the shield enters the constructed mining-method tunnel under a complicated stratum working condition can be solved; developed construction process and construction technology, which are used for receiving the shield in the mining-method tunnel, are formed; the universality of sustainable development and application of underground shield tunnel engineering development is guaranteed.

Description

technical field [0001] The invention relates to a shield tunnel construction method in a mine tunnel, in particular to a shield tunnel reception construction method in a mine tunnel. Background technique [0002] As an important construction method of urban rail transit, shield tunneling has been applied in the rail transit construction of domestic cities such as Shanghai and Beijing for more than 20 years. After more than 20 years of development, the construction technology has become increasingly mature. The utilization rate of the space is not high, and the conditions for the development of underground space are relatively good. Most of the shield receiving construction of the previous shield method tunnels is located in the working shaft of the station. As for the receiving construction of the shield tunnel in the mining method under the condition of large longitudinal slope and the connection between the shield method and the mining method tunnel, this construction tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D11/00E21D11/10
CPCE21D9/06E21D11/00E21D11/10
Inventor 易宏郑世兴易国平
Owner SHANGHAI FOUND ENG GRP
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