某市政工程地处长江一级阶地地貌单元,分布着深厚的软弱土层。该工程既有地基处理也有基坑支护。如果地基处理和基坑支护单独进行设计,则工期长、造价高。而采用格构式水泥搅拌桩进行地基处理兼做基坑被动区加固设计,在技术、经济和工期上均具有很大优势。实践证明该设计达到了预期功能及目的,可供类似工程借鉴。 A municipal project is located in the terraces of the Yangtze River terrace terraces, distributed with deep soft soil. The project has both foundation treatment and foundation pit support. If the foundation treatment and foundation pit support separate design, the long duration, high cost. However, the use of lattice cement mixing pile for foundation treatment and do the passive area reinforcement design, in terms of technology, economy and duration have great advantages. Practice has proved that the design has reached the expected function and purpose, for similar projects for reference.