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| 兰州东郊非原生黄土湿陷特点研究 | |
| 引用本文： | 廖秋林,丁振明,路世豹,刘艳辉.兰州东郊非原生黄土湿陷特点研究[J].辽宁工程技术大学学报(自然科学版),2005,24(1):32-34. |
| 作者姓名： | 廖秋林 丁振明 路世豹 刘艳辉 |
| 作者单位： | 1. 中国科学院地质与地球物理研究所,工程地质力学重点实验室,北京,100029 2. 中国地质大学,工程技术学院,北京,100083 3. 青岛理工大学,土木工程学院,山东,青岛,266033 |
| 基金项目： | 国家重点基础研究基金资助项目(973)(2002CB412702)，中国科学院知识创新工程基金资助项目(KJCX2-SW-L1-1) |
| 摘 要： | 基于野外调查，对兰州东郊阳洼沟黄土的物理力学特性进行了室内试验。结果表明，非原生黄土不仅在物理力学特性上与原生黄土有显著差异，其湿陷系数明显小于原生黄土，而且其湿陷性随深度变化表现为明显的非均匀性。土体结构是造成该场地黄土湿陷性这一特点的主要原因。根据阳洼沟黄土湿陷特点，阐述场地地裂缝的形成机理，为阳洼沟场地非原生黄土湿陷系数和持力层的确定提供参考。 |
| 关 键 词： | 黄土 湿陷系数 土体结构 阳洼沟 |
| 文章编号： | 1008-0562(2005)01-0032-03 |
| 修稿时间： | 2003年10月24 |
Subsidence properties of non-primary loess in east of Lanzhou |
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| LIAO Qiu-lin,DING Zhen-ming,LU Shi-bao,LIU Yan-hui.Subsidence properties of non-primary loess in east of Lanzhou[J].Journal of Liaoning Technical University (Natural Science Edition),2005,24(1):32-34. | |
| Authors: | LIAO Qiu-lin DING Zhen-ming LU Shi-bao LIU Yan-hui |
| Institution: | LIAO Qiu-lin1,DING Zhen-ming2,LU Shi-bao3,LIU Yan-hui1 |
| Abstract: | Based on the investigation, a few lab tests are conducted to study mechanical properties of loess at Yangwagou, in the east of Lanzhou. The test results show that there is a great difference in mechanical properties between primary loess and non-primary loess, and that the subsidence of non-primary loess in the same depth varies with its location. The structure of soil was proposed to explain these properties in the study area. It was suggested that the ground fissure should result from the subsidence difference. Finally, this study also put forward a reference, according to which, the subsidence coefficient of non-primary loess and supporting layer are obtained in Yangwagou. |
| Keywords: | loess subsidence coefficient structure of soil Yangwagou |
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