Combines the actual engineering of the Suining Zhongshan Road under the Xuhuai Expressway,analyzed the characteristics of common U-shape groove structures,put forward the structural form selection of U-shape groove under the condition of narrow clearance and lateral space,selected the specification of longitudinal and transverse main reinforcement through structural calculation,projected the waterproof design of U-shape groove structure with good effect,determined the anti floating measures on the basis of anti floating stability,calculated the length of uplift piles by calculating the ultimate lateral resistance of uplift piles,checked the stability of single uplift pile,finally determined the parameters of anti floating measures.The support form of foundation pit under the condition of narrow clearance and lateral space is proposed.
维普
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