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Method for synchronously constructing deep foundation pit and near-edge foundation process

A technology of synchronous construction and deep foundation pit, which is applied in the direction of basic structure engineering, excavation, construction, etc., can solve the problems that the surrounding shallow foundation cannot be constructed, and achieve the effect of shortening the construction period, reducing the possibility, and reducing the earthwork load

Inactive Publication Date: 2021-02-26
SHANGHAI BAOYE GRP CORP
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to overcome the defects of the prior art, provide a method for synchronous construction of deep foundation pits and adjacent foundation processes, and solve the problem that surrounding shallow foundations cannot be constructed before the foundation construction of deep foundation pits is completed

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  • Method for synchronously constructing deep foundation pit and near-edge foundation process

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Embodiment Construction

[0022] Such as figure 1 Shown: a method for synchronous construction of deep foundation pit and adjacent foundation process, which includes the following steps:

[0023] Step 1. Geological survey:

[0024] 1.1 The surface layer of the site within the construction scope is miscellaneous fill and residual soil, followed by fully weathered granite, strongly weathered granite, and moderately weathered granite;

[0025] Step 2. Preparation before construction:

[0026] 2.1 In order to ensure the construction safety of the deep foundation, the 30m area around the foundation is used as the construction area, and it is forbidden to stack heavy loads or construct other buildings in this area;

[0027] 2.2 The excavation depth of the pipe gallery is 8.1-8.2m, and the excavation depth of the column foundation is 4.4m, which is difficult to excavate. The working surface of the pipe gallery is long, interspersed with the rainy season, and the drainage workload during the rainy and preci...

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Abstract

The invention relates to a method for synchronously constructing a deep foundation pit and a near-edge foundation process. The method comprises the following steps of 1, geological investigation; 2, preparation before construction; and 3, synchronous construction of deep foundation and shallow foundation, wherein before an underground pipe gallery is excavated, a drainage ditch is excavated firstly, a gentle slope type drainage channel is formed along one side of a road, and the drainage channel is formed from the foundation pit edge to a factory main road drainage ditch from shallow to deep.Due to the fact that geological conditions of the area are mostly rocks, while the deep foundation pit of the underground pipe gallery is broken and chiseled, workshop column foundations beside the pit are broken and chiseled at the same time, and synchronous construction is achieved. When the deep pit foundation is close to the peripheral shallow foundation, all parts can be constructed at the same time, the cost is reduced, and the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a method for synchronous construction of deep foundation pits and border foundation procedures. Background technique [0002] In recent years, in the construction of steelmaking projects, the construction of deep foundation pits is particularly prominent. Whether it is a swirling pool or an underground pipe gallery, there are basically situations where deep foundation pits and shallow foundation pits are adjacent to each other. The principle of "deep first and then shallow" is adopted. The biggest disadvantage of this method is the long construction period. The difficulty of deep foundation pit construction lies in the difficulty of excavation, long construction period, and great danger, especially in the rainy season. Landslides are prone to occur during the construction process, which will delay the entire construction plan. Before the construction of the deep founda...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02E02D17/00
CPCE02D17/00E02D17/02
Inventor 刘艳鹏李雷周曹国
Owner SHANGHAI BAOYE GRP CORP