Method for excavating high-rise housing elevator foundation pit in muddy soil
A technology for middle and high-rise and foundation pits, applied in the field of construction, can solve the problems of easy collapse, difficult water discharge, easy over-excavation, etc., and achieves the effect of saving construction period and cost, avoiding large-scale disturbance and over-excavation, and the method is simple.
Pending Publication Date: 2022-05-13
NORTH CHINA METALLURGICAL CONSTR ENG CONSTR +1
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Problems solved by technology
[0003] In view of the above problems, the purpose of the present invention is to provide a method for excavating the foundation pit of high-rise residential buildings in silt soil, so as to solve the problem that the foundation pit is difficult to form, easy to collapse, Water is not easy to discharge and it is easy to over-excavate and disturb the foundation soil and other issues
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[0024] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
[0025] 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", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying t...
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The invention provides a method for excavating a high-rise housing elevator foundation pit in muddy soil, which comprises the following steps of: excavating to a position below a bottom plate concrete cushion layer of the foundation pit, putting a steel plate frame into a preset position of the foundation pit along the side wall of the foundation pit, continuously excavating, and sinking the steel plate frame along the side wall of the foundation pit until a preset distance is formed between the steel plate frame and the ground; after the foundation pit is excavated to a preset distance away from the ground, gravel is backfilled into the foundation pit to form a gravel layer; a brick wall is arranged on the steel plate frame, a cement mortar layer, a first waterproof layer and a first waterproof protection layer are sequentially arranged on the steel plate frame from inside to outside, and a waterproof additional layer is arranged in the first waterproof layer; and a concrete cushion layer, a second waterproof layer and a second waterproof protection layer are sequentially laid on the gravel layer to form the foundation pit. By means of the construction method, the problems that in the existing construction process of the high-rise residence elevator foundation pit in silt soil, a silt layer is hard to excavate, forming is difficult, collapse is likely to happen, water is not prone to being discharged, over excavation is likely to happen, and foundation soil is disturbed can be solved.
Description
technical field [0001] The invention relates to the technical field of construction, and more specifically relates to a method for excavating foundation pits for high-rise residential elevators in silt soil. Background technique [0002] Now all high-rise buildings are equipped with elevators. The sinking foundation pit of the elevator equipment is generally 1.8m ~ 2.0m lower than the basement floor, and the surrounding is the basement floor. In particular, the silt soil is nearly saturated, and the water is not easy to discharge. It is difficult to form after excavation, and it is easy to cause flow while digging. If the treatment is not in place, it will not only delay the construction period, but also easily over-excavate and disturb the foundation soil, which will affect the load of the foundation under the surrounding floor. force adversely affected. Contents of the invention [0003] In view of the above problems, the purpose of the present invention is to provide a...
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Login to View More IPC IPC(8): E02D17/02E02D29/05E02D31/02
CPCE02D17/02E02D29/05E02D31/02
Inventor 谭福生常杰
Owner NORTH CHINA METALLURGICAL CONSTR ENG CONSTR