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Structure and Construction Method of Isolation Damping Pile for Construction of Large-Section Tunnel Close to Buildings

A technology for buildings and large cross-sections, which is applied in the direction of foundation structure engineering, buildings, sheet pile walls, etc., can solve problems such as ground deformation, and achieve the effects of reasonable structural stress, simple construction steps, and fast implementation progress

Active Publication Date: 2019-03-05
CHINA RAILWAY LIUYUAN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a large-section tunnel close to building construction isolation shock-absorbing pile structure and construction method to solve the problem of stratum deformation caused by the construction of shallow-buried large-section tunnels in the above-mentioned background technology

Method used

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  • Structure and Construction Method of Isolation Damping Pile for Construction of Large-Section Tunnel Close to Buildings
  • Structure and Construction Method of Isolation Damping Pile for Construction of Large-Section Tunnel Close to Buildings
  • Structure and Construction Method of Isolation Damping Pile for Construction of Large-Section Tunnel Close to Buildings

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Embodiment

[0033] A large-section tunnel construction isolation shock-absorbing pile structure close to buildings, including buildings and large-section tunnels, is characterized in that: an isolation shock-absorption pile is arranged between the building and the large-section tunnel, and the isolation shock-absorption pile Including the hole pile protection wall, the guide steel pipe is arranged in the hole pile protection wall, the grouting steel pipe is arranged in the guide steel pipe, the cement mortar is poured in the grouting steel pipe, and the guide steel pipe and the hole pile protection wall are provided with Hole pile concrete.

[0034] The number of the guide steel pipes and the grouting steel pipes is two, and the distance between the grouting steel pipes is 400-500mm.

[0035] A method for constructing isolation shock-absorbing piles for large-section tunnels close to buildings, characterized in that it includes the following steps:

[0036] The embodiment that the large-...

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Abstract

The invention belongs to the technical field of tunnel and underground construction design and construction, and particularly relates to an isolation damping pile structure used for the construction of a large cross-section tunnel closed-spaced building and a construction method of the isolation damping pile structure. An insulation damping pile is arranged between a building and a large cross-section tunnel, and comprises hole pile protecting walls; guiding steel pipes are arranged in the hole pile protecting walls; grouting steel pipes are arranged in the guiding steel pipes; the grouting steel pipes are filled with cement mortar; hole pile concrete is poured between the guiding steel pipes and the hole pile protecting walls, so that the safety of the large cross-section tunnel or underground structure cross-spaced building construction in the shallow buried upper-soft and lower-hard ground is effectively ensured. The isolation damping pile structure is reasonable in stress, the construction steps are simple, and the implementation schedule is fast, the problems that environmental risk sources such as large cross-section tunnel closed-spaced buildings are high in construction risk, and conventional reinforcement means and construction in a tunnel are in cross influence on each other are solved, and the influence on the surrounding environments and the structures of construction control by an upper-soft lower-hard ground shallow-buried excavation method is better prevented.

Description

technical field [0001] The invention belongs to the technical field of design and construction of tunnels and underground engineering, and particularly relates to the countermeasures for the construction of large-section tunnels close to buildings, structures and other environmental risk sources in rocky strata by adopting the isolation effect of intermediate strata, that is, the construction of large-section tunnels close to buildings Isolation shock-absorbing pile structure and construction method. Background technique [0002] With the rapid growth of urban population and the scarcity of land resources, urban construction requires a large number of underground transportation, parking lots and underground commercial facilities, often encountering shallow buried large-section tunnels. The environment in the urban area is complex, and there are often residential buildings, factories and other underground structures built above and near the tunnel. The construction of the tun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/00E02D31/08E02D15/04E02D5/36
Inventor 宋超业张先锋杜道龙宋仪徐福东王宁熊田芳张美琴王蓉蓉
Owner CHINA RAILWAY LIUYUAN GRP CO LTD
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