软土基抗支护设计

根据国家相关规范以及场地地质勘擦资料，设计了开挖深度为5.70m的淤泥质基坑的钻孔灌注桩支护，坑壁止水问题由桩间旋喷水泥浆解决。具体计算了桩的基坑的内外侧最大弯矩，最大剪力，桩的配筋，桩顶位移，以及基坑的整体抗滑稳定性和抗倾覆稳定性。

Retaining and Protecting for The Soft Soil Foundation Excavation

Acoording to the related standards of China and locality ,and the material of the geological prospecting of the site, retaining and protecting for the foundation excavation of silt which is 5.70 feet deep with drill-pour-piles is designed.The problem of the water-seal for the foundation excavation wall is solved with revolve-spurt cement mortar between the piles.The maximum bending moment and shear for the inter outer of foundation excavation,and used the reinforment quantity of the piles and the displacements of pile top, and the integral stability of the resist slide and the resist overturn for foundation excavation are computed. Now the construction of the foundation was completed successfully. It was showed that this design is succeed. And the safety and economy indexes are unanimity well.