Large-area soft foundation reinforcement pile body quick-drainage method
A technology with weak foundation and large area, which is applied in the field of fast drainage of large-area weak foundation reinforcement piles, can solve the problems of unsatisfactory effect and unsatisfactory improvement of soil physical and mechanical indicators, and achieve the effect of expanding the effective range of precipitation and large permeability coefficient Effect
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[0058] For large-area weak foundations, light well point pipes (PVC pipes with a diameter of 32mm) are installed on the completed vibratory compaction sand piles.
[0059] Drill holes on the pipe wall of the light well point pipe to form a water filter hole (the water filter hole is set at the soil permeability coefficient K≤10 -4 Above the soil layer), the diameter of the filter hole is 10mm, and the hole spacing is 100mm. The length of the filter hole is set according to the geological conditions around the pile body, and it is mainly set in the soil layer with a small permeability coefficient. For interlayer soil, it can be set. Compartment design according to the location of the interlayer.
[0060] After the water filter hole is completed, wrap 3 layers of 100-mesh nylon filter mesh in the water filter hole part, and tie the nylon filter mesh tightly with iron wire; the part without filter hole does not need to be wrapped with a filter mesh.
[0061] Make concrete well p...
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