Composite foundation composed of rubble/ sand inverted filter layer and porous concrete piles and treatment method
A technology of porous concrete and composite foundation, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of porous concrete losing water permeability, easy segregation of porous concrete, unsatisfactory drainage effect of pile body, etc., to achieve pore connectivity Good effect, moderate plastic viscosity, small yield stress
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Embodiment 1
[0056] A certain project is located in the alluvial plain of the Yellow River, which belongs to the yellow flood zone. Geological conditions from top to bottom are silt, clay, silt, clay. The groundwater level is about 3m, and the groundwater is very abundant. In order to reduce the post-construction settlement and ensure the stability of the building, the design uses gravel / sand filter layer-porous concrete pile composite foundation to treat the soft soil foundation.
[0057] like figure 1 , 2 As shown, a gravel / sand filter layer-porous concrete pile composite foundation includes a pile body, and the outside of the pile body is a gravel / sand filter layer, and the gravel / sand filter layer can prevent mud from penetrating into the porous concrete pile , without losing drainage. The interior is made of porous concrete material, which ensures water permeability and has a certain strength and rigidity, which is conducive to increasing the speed of pipe removal, reducing distu...
Embodiment 2
[0067] A project uses gravel / sand filter layer-porous concrete pile composite foundation for treatment.
[0068] A gravel / sand filter layer-porous concrete pile composite foundation, which includes a pile body, and the outside of the pile body is a gravel / sand filter layer, and the gravel / sand filter layer can prevent mud from penetrating into the porous concrete pile, while not Loss of drainage. The interior is made of porous concrete material, which ensures water permeability and has a certain strength and rigidity, which is conducive to increasing the speed of pipe removal, reducing disturbance to the soil around the pile, and improving the bearing capacity of the composite foundation. A gravel / sand filter combined with a porous concrete material forms a composite foundation.
[0069] The foundation treatment steps are as follows:
[0070] The piles are arranged in a square image 3 As shown, according to the mechanical construction conditions, the pile diameter is 0.3m,...
Embodiment 3
[0078] A project design uses gravel / sand filter layer-porous concrete pile composite foundation to treat the foundation.
[0079] A gravel / sand filter layer-porous concrete pile composite foundation, which includes a pile body, and the outside of the pile body is a gravel / sand filter layer, and the gravel / sand filter layer can prevent mud from penetrating into the porous concrete pile, while not Loss of drainage. The interior is made of porous concrete material, which ensures water permeability and has a certain strength and rigidity, which is conducive to increasing the speed of pipe removal, reducing disturbance to the soil around the pile, and improving the bearing capacity of the composite foundation. A gravel / sand filter combined with a porous concrete material forms a composite foundation.
[0080] The foundation treatment steps are as follows:
[0081] The piles are arranged in a square image 3 As shown, according to the mechanical construction conditions, the pile ...
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