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Construction method for limited space foundation pit earth excavation

A technology of earthwork excavation and construction method, which is applied in the direction of infrastructure engineering, excavation, construction, etc., can solve problems such as safety accidents, low efficiency, and difficulty in earthwork excavation, and achieve good application prospects, convenient earthwork excavation, and strong practicality sexual effect

Inactive Publication Date: 2021-05-28
CHINA MCC17 GRP
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to make full use of the land, the basements of high-rise buildings are often constructed close to the red line of the planned land use, and the number of basement floors is increasing, which leads to deeper foundation pits in the basement, forming ultra-deep foundation pits in restricted spaces, and ultra-deep foundation pits in restricted spaces. The excavation of pits and earthworks is very difficult, especially the collection of slopes is a difficult problem for the majority of construction units. Improper earthwork excavation sequence and methods will not only be inefficient, but also easily cause safety accidents

Method used

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  • Construction method for limited space foundation pit earth excavation
  • Construction method for limited space foundation pit earth excavation
  • Construction method for limited space foundation pit earth excavation

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Embodiment Construction

[0025] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

[0027] The earthwork excavation construction method of the confined space foundation pit of the present invention comprises the following steps: S1 construction of support pi...

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Abstract

The invention discloses a construction method for limited space foundation pit earth excavation. The construction method is characterized by comprising the following steps that S1, supporting piles and a top beam are constructed; S2, earth excavation is conducted; S3, anchor rod and inter-pile spraying protection is conducted; S4, lower-layer earth excavation is conducted; S5, lower-layer anchor rod and inter-pile spraying protection is conducted; S6, supporting and earth excavation are alternately conducted; S7, ramp earth collection is conducted; and S8, foundation pit groove inspection is conducted. The construction method for limited space foundation pit earth excavation is suitable for space limitation, earth excavation is convenient, limited space ultra-deep foundation pit earth excavation is smoothly, efficiently and safely conducted, and high practicability and good application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of foundation and foundation engineering construction, and more specifically relates to an earthwork excavation construction method for a foundation pit in a limited space. Background technique [0002] With the rapid development of urbanization and the increasing shortage of land resources, the development and utilization of underground space has been vigorously developed. The underground space of high-rise buildings can increase the building area and resist disasters and earthquakes, solve the problem of public parking in the city center and individual parking in residential areas, and at the same time provide civil air defense projects as part of the city's comprehensive disaster prevention construction. [0003] In order to make full use of the land, the basements of high-rise buildings are often constructed close to the red line of the planned land use, and the number of basement floors is increasing, w...

Claims

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Application Information

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IPC IPC(8): E02D17/02E02D17/04
CPCE02D17/02E02D17/04
Inventor 乔小明丁守明徐小钦
Owner CHINA MCC17 GRP
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