必威体育精装版大厦深基坑设计计算书名师精编资料汇编.pdf

大厦深基坑支护设计 摘 要 本设计是丝绸大厦的基坑支护设计。 地基土层主要由素填土、 淤泥质粘土、 粉质粉土、 粉质粘土构成。 地形为坡地，局部为水塘。由人工推填平整，场地较平整。原始地貌为侵蚀性堆积岗地。 主体基坑支护采用分两侧采用不同的支护体系支护： 一种是钻孔灌注桩加锚杆的支护体系， 采用钻孔 灌注桩的基坑开挖深度为 9m ，总桩长 13m；一种是土钉墙支护，基坑开挖深度 10m。基坑采用深层 搅拌桩止水，排水沟排水。土层锚杆作为一种新兴科学，将会更广泛地运用到工程实践中，其具有较 高的科学性、使用性，且施工方便，不占场地。 设计的主要内容有支护方案的选择、钻孔灌注桩的设计与计算、土钉及锚杆的计算、基坑的止水和施 工组织设计和概预算。 关键词：深基坑支护；土钉墙；钻孔灌注桩；深层搅拌桩；锚杆支撑；施工组织设计；概预算。 Silk Building it Support Design’s P Abstract The design is the hole excavated for building foundation supports and protections design of the silk building. The foundation soil is primarily made of foundation-filling soil,mud clay, silty silt, silty clay.This terrain is covered with slopes,and some parts are reservoirs. It is pushed to be smooth Artificially, and the venue is a formation. Primitive landform of it is a corrosive stack hillock place. The main body of the hole excavated for building foundation supports and protections use different supports and protections systems to support and protect from two sides. One kind is the supports and protections system by useing the drill hole filling pile added with the anchor rod.The excavation depth of the structure is 9m, and the total length of the pile is 13m . Another way is the use of earth nail wall supports and protections,and the excavation depth of the structure is 10m. The hole excavated for building foundation uses the in-depth agitation pile to stop water and the drain to drain water . The soil layer anchor rod will be used in the project practice more widely as one emerging science, and it will be of higher scientific nature, use nature, and it will be constructed conveniently and it will not occupy the location. Primary coverage of the design contains the choice of the supports and protections plan, the design and the computation of the drill hole filling pile, the