Construction method of adjacent double pits

A construction method and technology for adjacent foundation pits, which are used in excavation, infrastructure engineering, construction, etc., can solve the problems that adjacent double pits cannot be constructed at the same time, and the construction period is long, so as to improve the construction efficiency and shorten the construction period. Effect

Active Publication Date: 2015-07-29
SHANGHAI CONSTR NO 5 GRP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The invention discloses a construction method for adjacent double pits, which is used to solve the problem in the prior art that adjacent double pits cannot be constructed at the same time, resulting in a long construction period

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  • Construction method of adjacent double pits

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Embodiment Construction

[0013] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0014] figure 1 It is a flow chart of the construction method of adjacent double pits of the present invention, please refer to figure 1 , a construction method for adjacent double pits, including:

[0015] Step 101: Set the central elevations of two adjacent foundation pits on the common wall at the same horizontal position.

[0016] The technical effect achieved is that after the completion of the excavation of two adjacent foundation pits, the steel supports in the two foundation pits exert the supporting force on the diaphragm wall at the same level, so that the forces on both sides of the diaphragm wall are balanced, and the diaphragm wall is ensured. The body will not deform. Among them, the central elevation refers to the average height of all steel supports arranged in the same foundation pit.

[0017] Step 102: Calculate the maximum d...

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Abstract

The invention discloses a construction method for adjacent double ditches, comprising the following steps of: setting central elevations of two adjacent foundation ditches at the position of a common wall at the same level, calculating biggest construction depths of the two adjacent foundation ditches and areas of the two adjacent foundation ditches for simultaneous construction, and determining depths and areas of the foundation ditches when a first foundation ditch and a second foundation ditch can be simultaneously constructed according to the soil pressure provided by the common wall at one side of the second foundation ditch when arranging a support at the first foundation ditch; excavating a foundation ditch near the wall at one side of the common wall, and excavating another foundation ditch away from the wall at the other side of the common wall; supporting the excavated parts in the process of excavating the two foundation ditches; stopping the construction from the foundation ditch which is excavated away from the wall after both of the foundation ditches are excavated to the biggest depth; finishing the construction of a foundation mat of the foundation ditch which is excavated near the wall; and finishing the rest construction of the two foundation ditches. The construction method disclosed by the invention has the advantages of realizing the simultaneous construction of the two adjacent foundation ditches, greatly improving the construction efficiency and shortening the construction cycle.

Description

technical field [0001] The invention relates to a construction method, in particular to a construction method of adjacent double pits. Background technique [0002] The foundation pit refers to the space below the ground excavated for the construction of the foundation and basement of buildings (including structures). The foundation pit is a temporary project, and its function is to provide a space so that the foundation masonry can be carried out according to the position specified by the design. [0003] At present, with the tense demand for land for construction and development in large cities, more and more buildings are developing underground. At the same time, due to the impact of the construction of the surrounding buildings, adjacent double pits with restrictions are gradually becoming common. In the construction process of the underground building, the excavation of the foundation pit excavated first and the support system in the foundation pit can only be excavate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/02
Inventor 毛子成张翼德王磊张益民范孝俊
Owner SHANGHAI CONSTR NO 5 GRP CO LTD
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