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Construction method for bottom plate pit backfilling sand ballast

A construction method and bottom plate technology, applied in excavation, infrastructure engineering, construction, etc., can solve problems such as low construction safety, deep pit falling accidents, complex construction, etc., to improve safety, reduce operating costs, and facilitate construction Effect

Inactive Publication Date: 2011-11-09
SHANGHAI NO 7 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] 1. The use of large-scale steel for weighting is relatively expensive, and complex hoisting machinery and equipment such as large cranes are required to hoist large-scale steel, and the construction is more complicated
[0005] 2. The use of large steel for weighting may easily lead to the possibility of people falling in the deep pit. Therefore, the construction safety is relatively low

Method used

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  • Construction method for bottom plate pit backfilling sand ballast
  • Construction method for bottom plate pit backfilling sand ballast
  • Construction method for bottom plate pit backfilling sand ballast

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Embodiment Construction

[0024] The construction method of backfilling sand and ballasting the bottom pit of the present invention will be further described in detail below.

[0025] The invention will now be described in more detail with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, it being understood that those skilled in the art may modify the invention described herein and still achieve the advantageous effects of the invention. Therefore, the following description should be understood as the broad knowledge of those skilled in the art, but not as a limitation of the present invention.

[0026] In the interest of clarity, not all features of an actual implementation are described. In the following description, well-known functions and constructions are not described in detail since they would obscure the invention with unnecessary detail. It should be appreciated that in the development of any actual embodiment, numerous implementation details...

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Abstract

The invention relates to the technical field of building construction, in particular to a construction method for resisting artesian water in a bottom plate pit of a foundation pit. The invention discloses a construction method for bottom plate pit backfilling sand ballast. The method comprises the following steps of: a, after a bottom plate is cast and reaches the designed strength, clearing garbage and accumulated water in the bottom plate pit so that the bottom plate pit is clean and tidy; and b, backfilling the backfilling sand into the bottom plate pit till the surface of the foundation pit. According to the construction method for the bottom plate pit backfilling sand ballast, the integral weight of the bottom plate is increased by piling yellow sand in the bottom plate pit to resist the artesian water, so that the water pumping quantity of the artesian water is reduced, the influence on the surrounding environment is reduced, and risk on the surrounding environment is effectively reduced. Moreover, the method is simple, convenient, practical and economic; the dug backfilled sand can be reused; and in addition, on the premise of effectively reducing the influence on the surrounding environment, the operation expense of pumping water in a pumping well is reduced to a certain degree, and the construction cost is further saved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for deep pits on bottom plates of foundation pits to resist pressurized water. Background technique [0002] During the construction of deep foundation pits, in order to ensure the safety of deep foundation pits, the confined water needs to be pumped during the excavation stage of the basement to reduce the head of the confined water. The pumping of a large amount of pressurized water not only ensures the safety of the foundation pit itself, but also has a cumulative impact on the surrounding environment, and at the same time, the cost of pumping water is also increasing. [0003] Now, large-scale steel is used to weigh the floor surface of the deep foundation pit. By increasing the overall ballast weight of the floor, the amount of pumped water under pressure is effectively reduced, the impact on the surrounding environment is reduced, and the...

Claims

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Application Information

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IPC IPC(8): E02D17/02E02D19/12
Inventor 王美华陆纪东尤雪春
Owner SHANGHAI NO 7 CONSTR
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