Foundation treatment method for controlling post-construction settlement and deformation of soft soil
A foundation treatment and soft soil technology, applied in soil protection, infrastructure engineering, construction, etc., can solve problems that may not be met
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Embodiment 1
[0034] Embodiment 1 is the method for adopting well point dewatering to strengthen the foundation to control post-construction settlement, and its construction steps are as follows:
[0035] (1) Insert a vertical sealing film 3 around the area to be reinforced, and set up a sealing wall;
[0036] (2) Insert plastic drainage boards 6 at certain intervals in the weak soil layer 4 in the area to be reinforced;
[0037] (3) Lay the drainage sand cushion 7, and bury gravel blind ditches in the sand cushion according to the length and width of 30-50m;
[0038] (4) Set precipitation well point 8 at the intersection of blind ditch;
[0039] (5) Lay old clay, geotextile and sealing film 2 on the drainage sand cushion layer 7, and the sealing film extends into the surrounding sealing wall with a depth of not less than 1m.
[0040] (6) Backfill the subsidence and fill the soil or apply preload, which can simultaneously use the walking load of the road construction vehicles during the c...
Embodiment 2
[0044] Embodiment 2 is the method for adopting vacuum pumping to strengthen the foundation to control post-construction settlement, and its construction steps are as follows:
[0045] (1) Insert a vertical sealing film 3 around the area to be reinforced;
[0046] (2) Insert plastic drainage boards 6 at certain intervals in the weak soil layer 4 in the area to be reinforced;
[0047] (3) Lay the horizontal drainage pipeline 10, and the head of the plastic drainage board 6 is directly connected with the horizontal drainage pipeline 10;
[0048] (4) Horizontal drainage pipeline 10 is connected with vacuum equipment 11 with bellows 12;
[0049] (5) Laying old clay or sealing film 2 on the foundation surface;
[0050] (6) Backfill the subsidence and fill the soil or apply preload, which can simultaneously use the walking load of the road construction vehicles during the construction period;
[0051] (7), run the vacuuming equipment 11 to carry out vacuuming, strengthen the found...
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