Transverse reinforcement grouting and underpinning working well and manufacturing method
A technology of transverse reinforcement and manufacturing method, which is applied in the direction of foundation structure engineering, soil protection, sheet pile wall, etc., can solve problems such as shaft wall inclination, surrounding ground settlement, and influence on the surrounding environment, and achieve the goal of ensuring vertical verticality Effect
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Embodiment 1
[0048] Embodiment 1, a kind of laterally reinforced grouting underpinning working well, such as Figure 1-7 As shown, it includes ring pile 1 and bottom cover pile 2; ring pile 1 is an approximate circular column formed by at least four pile bodies 11 (eighteen pile bodies 11 are used in the figure) ring-lapped, and the pile bodies 11 are mutually The lap joint length is t1, which can effectively isolate water and resist earth pressure. The bottom cover pile 2 is arranged at the bottom of the middle through hole of the ring pile 1, the bottom surface of the bottom cover pile 2 is parallel to the bottom surface of the ring pile 1, and the bottom cover pile 2 is overlapped with each pile body 11 of the ring pile 1, and the lap length is t2, thus The bottom of the through hole in the middle of the sealed annular pile 1 can effectively isolate water and resist earth pressure. General back cover pile 2 is one, also can adopt a plurality of back cover piles 2 to overlap when the in...
specific example 1
[0079] A building, the design requirement is: the depth of foundation d=1.0m, the foundation soil reinforcement thickness h=3.0m that needs, the grout diffusion radius of reinforced pipe under the foundation is c=1.5m, use the present invention to make working well:
[0080] The overlapping length t1=0.2m between two adjacent pile bodies 11 is preset, the overlapping length t2=0.2m between the bottom cover pile 2 and the annular pile 1, the radius r=0.8m of the working well space 4, and the construction distance s= 0.5m.
[0081] 1. According to the reinforcement thickness h of the foundation soil, determine the number n of reinforcement pipes 3:
[0082] n=h / (2c)=3 / (2×1.5)=1;
[0083] 2. Determine the height l1 of the working well space 4:
[0084] l 1 =d+h 1 +s=1.0+1.5+0.5=3.0m;
[0085] 3. Determine the height l2 of the back cover pile 2:
[0086] A reinforced pipe 3: l 2 =1.0+(n-1)×0.5=1.0m;
[0087] Four, determine the total length l of ring pile 1:
[0088] l=l ...
specific example 2
[0097] A building, the design requirement is: the depth of foundation d=1.0m, the foundation soil reinforcement thickness h=6.0m that needs, the grout diffusion radius of reinforced pipe under the foundation is c=1.5m, use the present invention to make working well:
[0098] The overlapping length t1=0.2m between two adjacent pile bodies 11 is preset, the overlapping length t2=0.2m between the bottom cover pile 2 and the annular pile 1, the radius r=0.8m of the working well space 4, and the construction distance s= 0.5m.
[0099] 1. According to the reinforcement thickness h of the foundation soil, determine the number n of reinforcement pipes 3:
[0100] n=h / (2c)=6 / (2×1.5)=2;
[0101] 2. Determine the height l1 of the working well space 4:
[0102] l 1 =d+h 1 + h 2 +s=1.0+1.5+3.0+0.5=6.0m;
[0103] 3. Determine the height l2 of the back cover pile 2:
[0104] Two reinforced pipes 3: l 2=1.0+(n-1)×0.5=1.0+(2-1)×0.5=1.5m;
[0105] Four, determine the total length l of ...
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