A kind of construction method of deep foundation pit earthwork excavation
An earthwork excavation and construction method technology, which is applied in infrastructure engineering, chemical instruments and methods, excavation, etc., can solve the problems of low excavation construction efficiency, weak load-bearing capacity, collapse and other problems, so as to improve construction safety and construction efficiency. , The effect of reducing the cost of reuse and cleaning, and reducing the cost of return transportation
Active Publication Date: 2022-07-29
上海金鹿建设(集团)有限公司
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Problems solved by technology
Both of the above two points lead to the complex composition of the soil layer of this type of landfill and the large landfill area.
This also makes the load-bearing capacity of this area vary, and the load-bearing capacity is much weaker than that of general geology. When excavating foundation pit earthwork, it is not appropriate to use too many engineering equipment, otherwise it may cause collapse due to load-bearing exceeding the limit problems, and thus lead to low excavation construction efficiency
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[0058] Attached to the following Figure 1-9 This application will be described in further detail.
[0059] The embodiment of the present application discloses a construction method for earthwork excavation of a deep foundation pit. refer to figure 1 and figure 2 , a construction method for deep foundation pit earthwork excavation comprises the following steps:
[0060] Step S1, construction preparation, divide the construction site into a plurality of excavation areas, and carry out a load-bearing test on each excavation area to determine the number of engineering equipment that can be excavated at the same time; the load-bearing test method is: Place the load-bearing plate at a point, and place engineering equipment or materials of equal weight on the load-bearing plate. After at least 48 hours, determine the load-bearing capacity of the soil layer according to the subsidence of the load-bearing plate. Generally, the subsidence is within 10mm. load bearing requirements....
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The present application relates to a construction method for earthwork excavation of deep foundation pits. First, the quantity of engineering equipment for safe construction is determined by a load-bearing test, so as to expand the construction amount as much as possible within a safe range, and then a layer-by-batch excavation is adopted The method reduces the lateral collapse of the soil layer, and then uses the material lifting equipment to transport the excavated earthwork, so as to reduce or even eliminate the excavation earthwork sent by the conveying equipment through the ramp as much as possible. The effect of improving construction efficiency.
Description
technical field [0001] The present application relates to the field of building construction, in particular to a construction method for earthwork excavation of deep foundation pits. Background technique [0002] At present, the widely used garbage disposal methods in China mainly include sanitary landfill, incineration and composting. my country has established standardized landfills since the late 1980s, and these landfills have been greatly improved compared with the original storage sites (informal landfills). Corresponding control measures have been taken to control the pollution caused by landfill gas and landfill gas; in terms of construction management, landfill in different areas, layered compaction, and regular soil covering are implemented. Sanitary landfill has become the main method of urban solid waste treatment in my country due to its large processing capacity, strong adaptability, one-time treatment, no residue, convenient management and reasonable operating...
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IPC IPC(8): B65G15/30E02D17/00E02D17/02B65G17/08B65G17/30B65G17/40B65G21/12B03C1/30B07B9/00B07C7/04
CPCE02D17/00E02D17/02B65G15/30B65G17/083B65G17/40B65G17/30B65G21/12B03C1/30B07B9/00B07C7/04
Inventor 许陈祥阮佳颖宋陈
Owner 上海金鹿建设(集团)有限公司