Construction technology of foundation pit adjacent to building
A construction technique and technology for existing buildings, which can be applied in construction, foundation structure engineering, sheet pile walls, etc., can solve the problems of building safety hazards, insufficient grading distance, etc., to reduce grading distance and reduce pressure Effect
Inactive Publication Date: 2020-08-18
武汉金涛岩土工程有限公司
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Problems solved by technology
As a result, during the construction of the foundation pit, there are often situations where there is not enough slope distance. If the slope distance is shortened at this time, it will directly cause safety hazards to the buildings around the foundation pit.
Method used
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Embodiment Construction
[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0039] refer to figure 1 , which is a construction technique for a foundation pit adjacent to a building disclosed by the present invention, comprising the following steps:
[0040] refer to figure 2 and Figure 4 , step A, existing building foundation reinforcement construction:
[0041] a1. Measure and locate the edge position and bottom depth of the existing building 5 foundation;
[0042] a2. Excavating the lateral channel 1, excavating the lateral channel 1 from the external soil layer adjacent to the foundation of the existing building 5 until the bottom surface of the lateral channel 1 is lower than the bottom surface of the foundation of the existing building 5;
[0043] a3. Digging the supporting hole 2, horizontally expand the hole at the bottom of the bottom surface of the lateral channel 1 to the base of the existing building 5, and after hor...
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The invention discloses a construction technology of a foundation pit adjacent to a building. The construction technology is characterized by comprising the following steps that A, an existing building foundation is machined and constructed, specifically, a1, the existing building foundation is measured and positioned; a2, a lateral channel is excavated downwards from an external soil layer of theexisting building foundation till the bottom face of the lateral channel is lower than the bottom face of the existing building foundation; a3, horizontal chambering is conducted from the bottom of the bottom face of the lateral channel to a position below the existing building foundation, and vertical deep excavation is conducted after chambering is conducted from the bottom end of the lateral channel to the position below the existing building foundation to form a supporting hole; a4, concrete is poured into the inner wall of the supporting hole to form a reinforcing pile; and B, the foundation pit is constructed, specifically, foundation pit excavation and foundation pit side wall reinforcing are conducted on the outer side of the building. Through the scheme, the reinforcing pile is used for supporting and bearing force on the existing building, the step-slope distance needed during the construction of the foundation pit is reduced, finally, excessive supporting in the foundationpit is not needed while foundation pit construction is conducted near the building, and the effective area of the foundation pit is guaranteed.
Description
technical field [0001] The invention relates to the technical field of foundation pit construction, in particular to a construction technique for a foundation pit adjacent to buildings. Background technique [0002] In recent years, my country's urbanization process has been accelerating, and urban construction has developed rapidly. A large number of various buildings and underground projects such as underground garages, underground shopping malls, subways, underground transportation hubs, and civil air defense facilities are built in dense urban areas, and foundation pit projects can be seen everywhere. In densely built urban areas, foundation pit engineering is often adjacent to the surrounding existing buildings. As a result, during the construction of the foundation pit, there are often situations where there is not enough grading distance. If the grading distance is shortened at this time, it will directly cause safety hazards to the buildings around the foundation pi...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02D17/02E02D17/04E02D5/34E02D5/74E02D19/06
CPCE02D5/34E02D5/74E02D17/02E02D17/04E02D19/06
Inventor 陈龙吴明吴金华
Owner 武汉金涛岩土工程有限公司