摘要
兰州新区位于兰州市永登县秦王川盆地,场区地层上部整体上为土、砂互层,在空间分布上呈现犬牙交错,杂乱无序,下部为第三系泥岩,埋藏深度大于40 m;地下水位埋深20 m左右,对混凝土具中等～强腐蚀性。在工程建设过程中,考虑到地质条件、建筑物的特点、建设成本等多种因素,应采用适宜的地基处理方法和基础形式。该文根据兰州新区大量的工程实践,对地基的处理方法及基础选型进行探讨,可供同行参考。
The new area of Lanzhou is located in Qinwangchuan Basin of Yongdeng County in Lanzhou.The upper stratum of the area is all soil and sand interbed and presents zigzag,cluttered and disordered on the spatial distribution.The lower stratum is the tertiary mudstone and its buried depth is greater than 40 m.The underground water level is about 20 m,which has a medium-strong corrosion to the concrete.Taking into account of geological conditions,the features of buildings,construction costs and other factors,the appropriate treatment method and foundation form are adopted in the course of engineering construction.Based on a large number of engineering practices in the new area of Lanzhou,the article mainly discusses the treatment methods of subgrade and the selection of foundation,which can be referred for the similar projects.
出处
《城市道桥与防洪》
2012年第12期199-203,18,共5页
Urban Roads Bridges & Flood Control
关键词
强夯
强夯置换
载体桩
混凝土夯扩桩
钻孔灌注桩
CFG桩
静载荷试验
dynamic compaction,dynamic compaction replacement,pile with bearing base,concrete compacted expanded pile,cast-in-situ pile,CFG pile,static load test
