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Covered-excavation full-top-down construction method of municipal underground engineering

An underground engineering and construction method technology, applied in water conservancy projects, infrastructure engineering, artificial islands, etc., can solve problems such as high cost and investment, impact on road traffic, and long project cycle, so as to save support costs, avoid construction period, The effect of protecting the environment

Active Publication Date: 2016-07-06
NO 1 CONSTR ENG CO LTD OF GUIZHOU CONSTR & ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide an urban underground engineering cover-excavation full reverse construction method to solve the serious impact of road traffic, loud noise, heavy pollution, long project period, high cost and input and problems existing in the construction of traditional urban underground engineering. Too many personnel calls, etc.

Method used

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  • Covered-excavation full-top-down construction method of municipal underground engineering
  • Covered-excavation full-top-down construction method of municipal underground engineering
  • Covered-excavation full-top-down construction method of municipal underground engineering

Examples

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Embodiment 1

[0070] Example 1: The middle section of Jiangyou City Monument and the middle section of Jiefang Road combined with public civil air defense project This project is located in Jiangyou City, Sichuan, with a civil air defense construction area of ​​about 29,300 square meters; normal function: underground commercial street and underground pedestrian crossing; wartime function: personnel Concealment and material storage warehouse. Protection category: Class B Resistance level: Level 6. The length of the project is 1171.5 meters, with a basement floor, the basic horizontal span is 7 meters + 6 meters + 7 meters, and the partial is 8 meters x n span (n is an integer from 5 to 7); the longitudinal span is 8 meters; the structural floor height is 5.7 rice.

Embodiment 2

[0071] Example 2: Nanchang Shengli Road Civil Air Defense Combined Civil Defense Project is located on Shengli Road, Donghu District, Nanchang City. It starts from Zhongshan Road in the south and goes to Yangming Road in the north; it starts from Xiangshan Road in the east and ends in Zongmao Road in the west. It is a combined peacetime and wartime project. The total length is about 2030m, and the total construction area of ​​the project is 52696 square meters. It will be implemented in two phases. The specific location is from Shengli Road to Lijia Road (Jiandeguan Road) to Zhongshan Road, the axis number is B63-A2, the total length is about 730m, and the construction area is 27,000m. The foundations of Shengli Road Civil Defense Civil Defense and Warfare Combination Project are buried at depths ranging from 9.5m to 12m. The main structure adopts reinforced concrete beamless floor slabs; the bottom slab is 500mm thick, the roof slab is 450mm thick, and the outer wall and middl...

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Abstract

The invention discloses a covered-excavation full-top-down construction method of municipal underground engineering. The method comprises the following steps: carrying out construction preparation, performing supporting by using steel plates, excavating top plate soil, constructing lower returning walls, constructing lower returning pillars, constructing top plate structures, carrying out back filling of top plates, constructing upper structures of the lower returning walls on the side of an underground floor I, constructing lower structures of the lower returning walls on the side of the underground floor I; constructing middle standing pillar structures, constructing inter-pillar bottom plate structures, constructing an underground floor II, and repeating the construction of the underground part till the whole engineering is ended. The covered-excavation full-top-down construction method of municipal underground engineering can effectively solve the problems such as severe road traffic influence, high noise, severe pollution, long engineering period, high cost and investment and a large number of invoked staff during construction of the conventional municipal underground engineering.

Description

technical field [0001] The invention relates to the technical field of construction engineering design and construction, in particular to a cover-excavation full reverse construction method for urban underground engineering. Background technique [0002] With the leap-forward development of China's urban construction, the construction of large underground shopping malls, underground parking lots, underground stations, underground transportation hubs, and underground substations are all faced with the problem of deep foundation pit engineering. Due to the complex and changeable engineering geological and hydrogeological conditions, the increasingly high requirements for environmental protection, the development of foundation pit engineering in the direction of super large area and large depth, and the increasingly complex development conditions such as construction schedule and resource conservation, the conventional construction method is generally Construction is carried ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/055
CPCE02D29/055
Inventor 付定鑫胡涛毛华祥潘建生刘铮崔冲刘璇谢光亚张思斌
Owner NO 1 CONSTR ENG CO LTD OF GUIZHOU CONSTR & ENG GRP
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