王曲与蒲城电厂湿陷性黄土地基浸水试桩比较  

Comparison between Water Immersed Piles in Collapsible Loess Ground of Two Power Plants

作　　者：衡朝阳[1] 何满潮[1] 景海河[1] 王雪峰 

机构地区：[1]中国矿业大学岩土工程研究所,北京100083 [2]长春市自来水公司,吉林长春130022

出　　处：《工程勘察》2002年第3期19-22,共4页Geotechnical Investigation & Surveying

摘　　要：通过对王曲、蒲城两个大型浸水试桩工程实例的地质条件、试验方案和试验结果的阐述和对比 ,分析了其静载荷作用下Q S曲线及桩身内力的异同点 ,指出了湿陷性黄土地基现场浸水试验的必要性以及目前存在的问题 ,提出了浸水状态下 ,加荷过程不同 ,对单桩最终沉降量影响较大 ,而对单桩极限承载力值影响甚小的结论。Identities and differences of Q\|S curves and inner force of pile shaft under static load are analyzed herein through the statements and tests carried in two projects of large scale.The necessity of field immersion tests for collapsible loess ground and problems existing at present are pointed out.A conclusion that under condition of water immersion with different procedures of loading the impact on final settlement of single pile is big but the impact on ultimate carrying capacity of single pile is small is proposed.

关 键 词：蒲城电厂 湿陷性黄土 浸入试验 试桩 负摩阻 

分 类 号：TU444[建筑科学—岩土工程]