三峡水库年周期调度内降雨模式对白水河滑坡稳定性影响研究
|
摘要
通过将三峡库区水位年调度周期概化为6个阶段,以白水河滑坡为研究对象,选取对滑坡最不利的3个阶段,开展了不同降雨开始时间及不同降雨形式对滑坡稳定性的影响研究.结果表明:在AB和DE阶段,降雨发生时间越晚,即相应库水位越低时,对于滑坡稳定性越不利;在AB、BC和DE阶段,白水河滑坡稳定性整体处于较低水平,滑坡稳定性系数在递增型和中间小型的降雨时较小,在递减型和中间大型的降雨时较大.研究结果可以为白水河及类似滑坡稳定分析及预测提供一些依据.
By generalizing the water level annual dispatching period into six stages in the Three Gorges reservoir area and taking Baishuihe landslide as the research object,the study of the effects of different rainfall start times and different rainfall patterns on the stability of the landslide are carried out with the selected three most unfavorable stages for the landslide.The results show that in the AB and DE stages,the later the rainfall occurs,that is,the lower the water level of the corresponding reservoir,the more unfavorable the stability of the landslide;In the AB,BC and DE stages,the stability of the Baishuihe landslide is generally at a low level,the stability coefficient of the landslide is smaller in the incremental and intermediate small rainfall,and larger in the decreasing type and the middle large rainfall.The research results can provide some basis for the stability analysis and prediction of Baishuihe and similar landslides.
By generalizing the water level annual dispatching period into six stages in the Three Gorges reservoir area and taking Baishuihe landslide as the research object,the study of the effects of different rainfall start times and different rainfall patterns on the stability of the landslide are carried out with the selected three most unfavorable stages for the landslide.The results show that in the AB and DE stages,the later the rainfall occurs,that is,the lower the water level of the corresponding reservoir,the more unfavorable the stability of the landslide;In the AB,BC and DE stages,the stability of the Baishuihe landslide is generally at a low level,the stability coefficient of the landslide is smaller in the incremental and intermediate small rainfall,and larger in the decreasing type and the middle large rainfall.The research results can provide some basis for the stability analysis and prediction of Baishuihe and similar landslides.
引文
[1]王尚庆,徐进军,罗勉.三峡库区白水河滑坡险情预警方法研究[J].武汉大学学报(信息科学版),2009,34(10):1218-1221.
[2]赵能浩,易庆林.三峡库区黄泥巴蹬坎滑坡渗流稳定性分析[J].中国地质灾害与防治学报,2015,26(3):10-16.
[3]廉城,曾志刚,苏义鑫,等.基于误差修正EOS-ELM的滑坡位移预测[J].华中科技大学学报(自然科学版),2017,45(9):52-57.
[4]吴琼,唐辉明,王亮清,等.库水位升降联合降雨作用下库岸边坡中的浸润线研究[J].岩土力学,2009,30(10):3025-3031.
[5]曹阳建,汤明高,杨何.库水与降雨作用下白水河滑坡加卸载响应比分析[J].人民长江,2016,47(23):55-59.
[6]易庆林,张明玉,文凯,等.三峡库区白水河滑坡变形特征及影响因素的阶段分析[J].三峡大学学报(自然科学版),2017,39(1):38-42.
[7]卢书强,易庆林,易武,等.库水下降作用下滑坡动态变形机理分析---以三峡库区白水河滑坡为例[J].工程地质学报,2014,22(5):869-875.
[8]叶建华,王志俭,贺雷,等.库水作用下白水河滑坡稳定性研究[J].中国水运,2014,14(2):248-250,252.
[9]李道臣,王志俭,邵杰鹏,等.降雨及库水位耦合下白水河滑坡变形机理分析[J].三峡大学学报(自然科学版),2017,39(4):46-50.
[10]尚敏,徐鑫,等.基于降雨渗流场变化的三峡库区白水河滑坡变形机制与预测[J].中国地质灾害与防治学报,2016,27(2):26-32.
[11]三峡大学土木与建筑学院.湖北省三峡库区后续地质灾害防治秭归县白水河滑坡应急治理工程勘查报告[R].宜昌:三峡大学土木与建筑学院,2013.
[12]易庆林,易武,尚敏.三峡库区某滑坡变形影响因素分析[J].中国水土保持,2009,(7):32-34.
[13]易贤龙.降雨与库水位作用线白水河滑坡渐进破坏概率研究[D].武汉:中国地质大学,2016.
[14]张少琴,向玲,王力.降雨作用下不同库水位升降速率对某滑坡稳定性的影响[J].浙江水利科技,2014,(2):69-76.
[15]王力.降雨作用下不同渗透性系数对滑坡稳定性的影响[J].浙江水利科技,2014,40(4):1-6.
[16]陈婷,程圣国,潘飞.降雨模式对滑坡稳定性的影响[J].水力发电,2013(4):25-28.
[17]张国栋,李泯蒂,龙海涛,等.水库型滑坡稳定性动态变化过程有限元分析[J].水利水电技术,2016,47(2):104-109.
[2]赵能浩,易庆林.三峡库区黄泥巴蹬坎滑坡渗流稳定性分析[J].中国地质灾害与防治学报,2015,26(3):10-16.
[3]廉城,曾志刚,苏义鑫,等.基于误差修正EOS-ELM的滑坡位移预测[J].华中科技大学学报(自然科学版),2017,45(9):52-57.
[4]吴琼,唐辉明,王亮清,等.库水位升降联合降雨作用下库岸边坡中的浸润线研究[J].岩土力学,2009,30(10):3025-3031.
[5]曹阳建,汤明高,杨何.库水与降雨作用下白水河滑坡加卸载响应比分析[J].人民长江,2016,47(23):55-59.
[6]易庆林,张明玉,文凯,等.三峡库区白水河滑坡变形特征及影响因素的阶段分析[J].三峡大学学报(自然科学版),2017,39(1):38-42.
[7]卢书强,易庆林,易武,等.库水下降作用下滑坡动态变形机理分析---以三峡库区白水河滑坡为例[J].工程地质学报,2014,22(5):869-875.
[8]叶建华,王志俭,贺雷,等.库水作用下白水河滑坡稳定性研究[J].中国水运,2014,14(2):248-250,252.
[9]李道臣,王志俭,邵杰鹏,等.降雨及库水位耦合下白水河滑坡变形机理分析[J].三峡大学学报(自然科学版),2017,39(4):46-50.
[10]尚敏,徐鑫,等.基于降雨渗流场变化的三峡库区白水河滑坡变形机制与预测[J].中国地质灾害与防治学报,2016,27(2):26-32.
[11]三峡大学土木与建筑学院.湖北省三峡库区后续地质灾害防治秭归县白水河滑坡应急治理工程勘查报告[R].宜昌:三峡大学土木与建筑学院,2013.
[12]易庆林,易武,尚敏.三峡库区某滑坡变形影响因素分析[J].中国水土保持,2009,(7):32-34.
[13]易贤龙.降雨与库水位作用线白水河滑坡渐进破坏概率研究[D].武汉:中国地质大学,2016.
[14]张少琴,向玲,王力.降雨作用下不同库水位升降速率对某滑坡稳定性的影响[J].浙江水利科技,2014,(2):69-76.
[15]王力.降雨作用下不同渗透性系数对滑坡稳定性的影响[J].浙江水利科技,2014,40(4):1-6.
[16]陈婷,程圣国,潘飞.降雨模式对滑坡稳定性的影响[J].水力发电,2013(4):25-28.
[17]张国栋,李泯蒂,龙海涛,等.水库型滑坡稳定性动态变化过程有限元分析[J].水利水电技术,2016,47(2):104-109.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |