碎石桩处理深厚红粘土地基的试验研究  

Experimental Study About the Deep Laterite Foundation Reinforced by Gravel-piles

作　　者：任佳丽[1] 文松霖[1] 张家发[1] 姜志全[1] 

机构地区：[1]长江科学院,武汉430010

出　　处：《土工基础》2008年第6期18-21,24,共5页Soil Engineering and Foundation

基　　金：国家自然科学基金项目(50679004)资助

摘　　要：在机场建设中,特别是西南山区机场建设过程中,大面积、高填方、深厚红粘土地基的沉降变形控制是机场建设中的关键问题。以昆明新机场试验段工程为例,探讨分布厚度大于10m的红粘土地基采用碎石桩处理的加固效果。通过地基处理前后的沉降分析、物理力学试验、载荷试验、标贯试验及沉降观测等手段,表明采用碎石桩处理场区深厚红粘土地基是一种有效的加固措施,能满足沉降变形设计要求。The settlement of high filled and deep distributed laterite foundation is one of the key problems which must be solved in the southwest airport construction. Taking kunming airport as an example, this paper study the reinforcement effort of later- ire foundation which is thicker than 10 m reinforced by gravel piles. Through the foundation subsidence analysis, physics me- chanical testing, the load test, standard penetration test as welt. as the settlement observation, using the gravel piles processing field deep laterite foundation is one kinds of effective reinforcement measures, and satisfies the subsidence distortion design re- quest.

关 键 词：高填方 红粘土 碎石桩 沉降 

分 类 号：TU753.8[建筑科学—建筑技术科学] U231[交通运输工程—道路与铁道工程]