Construction method of mountain foundation pit
A construction method and foundation pit technology, which is applied in infrastructure engineering, excavation, construction, etc., can solve problems affecting construction quality and safety, prone to landslides, and large size changes, so as to ensure construction quality, avoid landslides, and resist deformation Effect
Inactive Publication Date: 2019-09-27
CHINA CONSTR SECOND ENG BUREAU LTD
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Problems solved by technology
[0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. The construction process of the foundation pit is complex and complicated.
There are many defects in the foundation pit construction in the prior art, for example: the drainage problem cannot be guaranteed during the earthwork excavation process, which affects the construction quality and safety; during the support construction, the slope coefficient is difficult to control, and landslides are prone to occur; The retaining wall is affected by temperature, and its size changes greatly, which affects the overall shape of the entire retaining wall
Therefore, there is a lack of a foundation pit construction method that can ensure construction quality and safety in the prior art
Method used
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[0023] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail in conjunction with the following examples. The schematic implementations and descriptions of the present application are only used to explain the present application, and are not intended to be a reference to the present application. limit.
[0024] A construction method for a mountain foundation pit proposed by the application comprises the following construction steps:
[0025] Excavation of earthwork; excavation in the form of segmentation, layering, and block; specifically, first determine the excavation slope, after measurement and positioning, copy the leveling line, determine the excavation width, and excavate according to the setting line.
[0026] Specifically, for excavation in vertical layers, the depth of each layer of excavation shall not be greater than 2m; for excavation in flat fields, the slope...
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The invention provides a construction method of a mountain foundation pit, and relates to thetechnical field of building construction.The construction method of the mountain foundation pit includes the steps that an earthwork is excavated; excavation is carried out according to the forms of section, layering and blocking; by forming drainage ditches in the top of the foundation pit and combining the method of reducing groundwater level,it is ensured that the construction is in a water-free state; support construction is carried out, and includes natural step-slope and anchor rod support; the step-slope form is monitored in realtime; retaining walls are constructed; a plurality of diamond-shaped lattice retaining wallsare adopted, concrete is poured between the adjacent lattice retaining walls, and each beam lattice is filled withseeds for soil and grass planting; expansion joints are arranged between the adjacent lattice retaining walls, andthe expansion joints are filled with asphalt mastic; and a drainage system is constructed, and earthwork backfilling is carried out.
Description
technical field [0001] The present application relates to the field of building construction, in particular to a construction method of a mountain foundation pit. Background technique [0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. The construction process of the foundation pit is complicated and complex. There are many defects in the foundation pit construction in the prior art, for example: the drainage problem cannot be guaranteed during the earthwork excavation process, which affects the construction quality and safety; during the support construction, the slope coefficient is difficult to control, and landslides are prone to occur; The retaining wall is affected by temperature, and its size changes greatly, which affects the overall shape of the entire retaining wall. Therefore, lack a kind of foundation pit construction method that can guarantee construction quality and ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02D17/02E02D17/04E02D19/08
CPCE02D17/02E02D17/04E02D19/08E02D2300/002E02D2300/0021
Inventor 石立国姜睿刘衍华李臣森王奥林
Owner CHINA CONSTR SECOND ENG BUREAU LTD