宝鸡市狄家坡滑坡稳定性研究
|
摘要
宝鸡市狄家坡斜坡是一个古滑坡。在调查滑坡区水文地质和工程地质条件的前提下，本文描述了滑坡的形态与物质结构、滑坡表层的变形破坏特征及其影响因素，探讨了古滑坡的发生机制。引用可以任意条分块体的Ｓａｒｍａ方法，研究了该滑坡在自然、地震、饱水和三者同时存在共四种状态下的稳定性，并进行了斜坡表层黄土坡体的稳定性对于地下水位上升的敏感性分析。基本结论是，狄家坡滑坡在整体上是稳定的，其表层的黄土坡体在地下水位上升时会发生失稳破坏。最后，提出了进行滑坡防治的工程对策。
ijiapo slope is a paleolandslide in Baoji City. Based on inverstigation of hydrogeological and engineering geological factors of the slope, the form and material structure and deformationfracture features of surficial loess body of the slope are described, and the dynamic mechanism for paleolandslide is discussed in this paper. Using Sarma method for slope division in arbitrary way, the stability of the landslide are studied at natural (recent), earthquake and water saturation states or synchronously at three states. And then, its sensitivity analysis is made that stability change of surficial loess body can take plecs with groundwater table rising or lowering. General conclusion is that Dijiapo slope is stable, its surficial loess body will be unstable as groundwater table rising. Eventually, some control ways are put forward to it.
ijiapo slope is a paleolandslide in Baoji City. Based on inverstigation of hydrogeological and engineering geological factors of the slope, the form and material structure and deformationfracture features of surficial loess body of the slope are described, and the dynamic mechanism for paleolandslide is discussed in this paper. Using Sarma method for slope division in arbitrary way, the stability of the landslide are studied at natural (recent), earthquake and water saturation states or synchronously at three states. And then, its sensitivity analysis is made that stability change of surficial loess body can take plecs with groundwater table rising or lowering. General conclusion is that Dijiapo slope is stable, its surficial loess body will be unstable as groundwater table rising. Eventually, some control ways are put forward to it.
引文
［1］翟礼生．1983．中国湿陷性黄土区域建筑工程地质概要．北京：科学出版社．［2］乔平定等．1990．黄土地区工程地质．北京：水利电力出版社．［3］陕西省地质矿产局第二水文地质工程地质队．1986．黄河中游区域工程地质．北京：地质出版社．［4］刘玉海等．1988．延安城市工程地质．武汉：中国地质大学出版社．［5］张宗祜等．1989．中国黄土．北京：地质出版社．［6］黄运飞等．1992．计算工程地质学．北京：兵器工业出版社．［7］刘传正．1995．环境工程地质学导论．北京：地质出版社．［8］刘传正．1996．论滑坡稳定性评价的几个关键问题．中国地质灾害与防治学报，7（3）．［9］Sarma．1979．StabilityAnalysisofEmbankmentsandSlopes．Jour．oftheGeotechnicalEngineeringDivision，2（3）．［10］《岩土工程勘察规范》（GB50021－94）．1995．北京：中国建筑工业出版社．
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心