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Soft soil area large area greening non-excavation implementing underground space construction method

A technology of underground space and construction method, which is applied to artificial islands, water conservancy projects, underwater structures, etc., can solve the problems that cannot meet the requirements of large-section excavation in urban underground spaces, section size restrictions, etc., and achieve small ground deformation, The effect of reducing the amount of deformation and adapting to a wide range

Inactive Publication Date: 2013-02-27
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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Problems solved by technology

Typical non-excavation technologies in soft soil areas, such as pipe jacking and shield tunneling, are mostly used in projects such as underground passages or cross-river tunnels due to the limitation of section size, which cannot meet the requirements of large-section excavation in urban underground spaces. The construction method is restricted by engineering, hydrogeological and other conditions and cannot be popularized in soft soil areas

Method used

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  • Soft soil area large area greening non-excavation implementing underground space construction method
  • Soft soil area large area greening non-excavation implementing underground space construction method
  • Soft soil area large area greening non-excavation implementing underground space construction method

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Embodiment Construction

[0041] Such as figure 1 and figure 2 As shown, the construction method of non-excavation implementation of underground space under a large area of ​​soft soil area greening in this embodiment is applied to construct a place such as Figure 8 The underground space of the two-story structure shown includes the following steps:

[0042] Step S1, using horizontal static pressure steel pipes to construct image 3 The door-type tube curtain 1 shown. It is supplemented that the method of constructing portal-shaped pipe curtains with horizontal static pressure steel pipes is well known to those skilled in the art. The locks between the steel pipes are used to overlap to form a curtain, and finally a door-shaped pipe curtain is formed. Therefore, the specific construction of the door-shaped pipe curtain will not be further described in this embodiment.

[0043] Step S2, combined with the attached Figure 4 - attached Figure 7 As shown, earthwork excavation and roof structure po...

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Abstract

The invention discloses a soft soil area large area greening non-excavation implementing underground space construction method. The method comprises the following steps: steps one, constructing a door type pipe roof; step two, performing earth excavation and top plate pouring in the pipe roof in layered and sectioned mode, and forming a ground floor reinforced concrete structure with sealed top face, lateral faces and bottom face; step three, after the ground floor structure reaches designed strength, finishing a next-layer earth excavation, performing concrete layer pouring on two lateral walls of excavated exposed pipe roof and a bottom plate of a second floor underground structure, and completing construction of the second floor underground structure; besides, the method can further comprises a step four and circulate step three, and accordingly construction of multi-layer underground space structures is completed. The construction method greatly reduces ground deformation quantity, has the advantages of being good in ground control during construction process and having zero damage on city green land and zero influence on greening growth environment, and is particularly suitable for being used in underground space construction under built city large area greening.

Description

technical field [0001] The invention relates to the technical field of underground engineering construction, in particular to a construction method for non-excavating underground space under large-area greening in soft soil areas. Background technique [0002] Co-planning and comprehensive development of large-area urban landscape greening and the underground space below is an important manifestation of rational utilization of urban underground space resources and adaptation to urban modernization and sustainable development. However, due to the lack of scientific planning and overall arrangements, the underground space resources of large urban green spaces in major cities in my country cannot be fully utilized. [0003] Trenchless technology is an important idea to realize the development of underground space under the existing large-scale greening. Typical non-excavation technologies in soft soil areas, such as pipe jacking and shield tunneling, are mostly used in project...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045
Inventor 张中杰陈加核徐正良郑雅莉
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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