Construction method for earth excavation of deep foundation pit
A technology of earthwork excavation and construction method, which is applied in the direction of infrastructure engineering, chemical instruments and methods, excavation, etc., can solve the problems of low excavation construction efficiency, different load-bearing capacity, and excessive mobilization, so as to reduce reuse and clean up The effect of reducing cost, improving conveying efficiency, and reducing cost
Active Publication Date: 2021-03-19
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]Contraction belowFigure 1-9Further detailed description of the present application.
[0059]The present application discloses a construction method for excavation of deep base pits. Referfigure 1 withfigure 2 The construction method of the excavation of the deep base pit is included in the following steps:
[0060]Step S1, the construction is prepared, divided into a plurality of excavation regions, and the number of engine devices can be performed simultaneously, and the number of load-bearing tests is: in the corresponding area Place the load plate, place the engineering equipment or equally material on the load-bearing plate, after at least 48 hours, determine the load-bearing capacity of the soil layer according to the sinking of the load plate, which generally below the sink is mostly within 10 mm. Involvement.
[0061]Step S2, the first layer excavation, determines the depth of the first layer excavation for the area that has been loaded, and divides the depth into a plurality of...
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The invention relates to a construction method for earth excavation of a deep foundation pit. Firstly, the number of engineering equipment for safe construction is determined through a load-bearing test, so that the construction amount is increased as much as possible within a safe range, then a layered batch-by-batch excavation mode is adopted for reducing lateral collapse of a soil layer, excavated earth is conveyed through material lifting equipment, and the excavated earth conveyed out by delivery equipment through a ramp is reduced or even eliminated as much as possible, so that the effect of greatly improving the construction efficiency on the basis of ensuring the construction safety of a landfill is achieved.
Description
Technical field[0001]The present application relates to the field of construction construction, in particular, involving a construction method of deep-founded pits.Background technique[0002]The currently widely used garbage disposal methods are mainly hygienic landfills, incineration, composting. Since the late 1980s, my country has begun to establish a normative landfill, which has great improvements compared to the initial stacking field (informal landfill), in the design for garbage filtration The pollution of landfill has adopted corresponding control; in terms of construction management, the subregional landfill, layered compaction, and regular earth areas. Because of the large amount of hygienic landfill, strong adaptability, disposable treatment, no residue, convenient management and reasonable operation, so it has become the main means of urban solid waste treatment in my country. Press and hold the Data Data, as of 2011, 73% of domestic garbage in my country use landfill tr...
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Login to View More IPC IPC(8): E02D17/00E02D17/02B65G15/30B65G17/08B65G17/30B65G17/40B65G21/12B03C1/30B07B9/00B07C7/04
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