Effect of Sample Disturbance on Unconfined Compression Strength of Natural Marine Clays

作     者：刘汉龙 洪振舜 

作者机构：eotechnical Institute Institute of Geotechnical Engineering 

出 版 物：《海洋工程：英文版》 (China Ocean Engineering)

年 卷 期：2003年第17卷第3期

页      面：407-416页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：ThisresearchprojectwasfinanciallysupportedbyChina DutchCooperationProjectonWaterResourcesEducationandDomesticResearchFellowshipoftheMinistryofScienceandTechnology Japan (1999-2 0 0 1) 

主　　题：correcting method degree of sample disturbance liquid limit natural marine clays natural water content oedometer test data unconfined compressive strength 

摘      要：Quantitatively correcting the unconfined compressive strength for sample disturbance is an important research project in the practice of ocean engineering and geotechnical engineering. In this study, the specimens of undisturbed natural marine clay obtained from the same depth at the same site were deliberately disturbed to different levels. Then, the specimens with different extents of sample disturbance were trimmed for both oedometer tests and unconfined compression tests. The degree of sample disturbance SD is obtained from the oedometer test data. The relationship between the unconfined compressive strength q u and SD is studied for investigating the effect of sample disturbance on q u. It is found that the value of q u decreases linearly with the increase in SD. Then, a simple method of correcting q u for sample disturbance is proposed. Its validity is also verified through analysis of the existing published data.