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Foundation strengthening and reinforcing method for narrow foundation pit and foundation pit structure

A foundation reinforcement and foundation pit technology, which is applied in the fields of foundation structure engineering, excavation, special data processing applications, etc., can solve the problems that the safety needs to be improved, the particularity of the narrow foundation pit, and the stability change are not considered.

Active Publication Date: 2021-09-07
GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the sliding surface of conventional foundation pits is not subject to additional constraints, while the sliding surfaces of narrow and long foundation pits intersect in the pit, the sliding surfaces on both sides will be constrained by each other, and the constraint effect of the soil load around the pit is also significant
This constraint restricts the development of the sliding surface, and also changes the sliding force, anti-slip force, resulting in a change in stability
[0004] In the existing technology, pit bottom reinforcement is an effective method for foundation pit support in soft soil areas, but the form of pit bottom reinforcement has not considered the particularity of narrow foundation pits, and the safety during construction needs to be improved

Method used

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  • Foundation strengthening and reinforcing method for narrow foundation pit and foundation pit structure
  • Foundation strengthening and reinforcing method for narrow foundation pit and foundation pit structure
  • Foundation strengthening and reinforcing method for narrow foundation pit and foundation pit structure

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0040] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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Abstract

The invention relates to a foundation reinforcing and strengthening method for a narrow foundation pit. The foundation reinforcing and strengthening method comprises the following steps that whether a foundation pit is a narrow foundation pit or not is judged; if the foundation pit is a narrow foundation pit, a first strengthening and reinforcing piece is installed in the middle of the narrow foundation pit in the width direction of the foundation pit; and a second strengthening and reinforcing piece is installed on the circumferential edge of the foundation pit. According to the foundation reinforcing and strengthening method for the narrow foundation pit, in the construction process, firstly, after the actual size of the foundation pit is measured and calculated by a constructor, and the foundation pit is judged to be the narrow foundation pit, the first strengthening and reinforcing piece is installed at the middle position of the narrow foundation pit in the width direction of the foundation pit; and the second strengthening and reinforcing member is installed along the foundation edge of the foundation pit. Therefore, a displacement part of a sliding surface of the narrow foundation pit generated at a sliding-out position of the pit is reinforced, the implementation process is clear and simple, and the construction process is easy in operation. Meanwhile, the foundation reinforcing and strengthening method for the narrow foundation pit is wide in practicability and can be suitable for the technical field of engineering such as highway engineering, municipal engineering, bridge engineering and foundation treatment.

Description

technical field [0001] The invention relates to the technical field of building construction and foundation treatment, in particular to a method for strengthening and reinforcing the bottom of a narrow foundation pit and a structure of the foundation pit. Background technique [0002] In municipal pipeline projects and urban rail transit projects, the construction space is significantly limited, and the excavated foundation pits are often narrow and long, and the ratio of the width of the foundation pit to the depth of the foundation pit is large. This is different from common building foundation pits, where the ratio is much larger. The stability of the foundation pit is closely related to the safety of the foundation pit itself and the adjacent buildings. [0003] However, when the ratio is small, the width of the foundation pit is significantly smaller than the depth of the foundation pit, which may lead to a closer distance between the sliding surface and the other side...

Claims

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Application Information

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IPC IPC(8): E02D17/04E02D17/02G06F30/13
CPCE02D17/04E02D17/02G06F30/13G06F2119/14
Inventor 陈国雄贺佐跃梁建东黄仕香王涛贺俊毅欧韵杰刘凯旋屈锦康彭新款
Owner GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
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