库水位等速下降中均质库岸塌岸现象试验研究

重庆交通大学学报（自然科学版） ›› 2011, Vol. 30 ›› Issue (1): 115-119.

库水位等速下降中均质库岸塌岸现象试验研究

王俊杰^1,2，张梁²，阎宗岭³

1.中国人民解放军后勤工程学院建筑工程系，重庆 400041; 2.重庆交通大学水利水运工程教育部重点实验室，重庆 400074; 3.国家山区公路工程技术研究中心，重庆 400067

收稿日期:2010-10-20 修回日期:2010-12-06 出版日期:2011-02-15 发布日期:2015-01-22
作者简介:王俊杰( 1973—) ，男，甘肃陇西人，教授，博士，主要从事岩土工程方面的研究。E-mail: wangjunjiehhu@163.com。
基金资助:
中国博士后科学基金特别资助项目( 200902284) ; 交通运输部西部交通建设科技项目( 200831874006) ; 重庆市自然科学基金重点项目( CSTC，2009BA6001)

Experiment Study on Homogeneous Bank Caving of Reservoir with Water Level Evenly Lowering

WANG Jun-jie ^1,2，ZHANG Liang ²，YAN Zong-ling ³

1. Department of Architecture Engineering，Logistical Engineering University of PLA，Chongqing 400041，China; 2. Key Laboratory of Hydraulic ＆ Waterway Engineering of the Ministry of Education，Chongqing Jiaotong University，Chongqing 400074，China; 3. National Research Center on Mountain Highway Engineering and Technology，Chongqing 400067，China

Received:2010-10-20 Revised:2010-12-06 Online:2011-02-15 Published:2015-01-22

摘要/Abstract

摘要： 为研究库水位等速下降过程中均质水库岸坡的塌岸现象及岸坡内浸润线的变化特点，以取自三峡库区的含黏粒粉砂为主要试验土料，对建立的4 个不同结构的均质岸坡模型进行了7 种不同速率的水位下降试验。试验结果表明，库水位下降速率越大，均质水库岸坡的塌岸现象越易发生，但库水位下降速率的大小并不与塌岸现象的严重程度成正相关关系; 试验测得浸润线与理论计算结果的比较分析表明，当水位下降速率较小时，浸润线的理论计算结果与试验结果基本一致，但是当水位下降速率较大时，理论计算结果可能会低估浸润线的位置。

关键词: 水库塌岸, 库水位下降, 均质岸坡, 浸润线

Abstract: In order to investigate the homogeneous bank fall of reservoir and the changing features of the phreatic line when the water level of reservoir is evenly lowering，four homogeneous bank models with different structures are built with the sand containing little clay excavated from Three Gorges Reservoir Area of China，and seven tests with different water level lowering rates are done for each model respectively． The testing results of model indicate that the larger the water level lowering velocity，the more possible the bank falling． But the positive correlation between the severity of the bank caving and the water level lowering velocity isn’t always right． The typical phreatic lines in the model slope obtained from the experiment are compared with those obtained from a published analytic solution． The comparison indicates that the published analytic solution may be reasonable while the water level lowering velocity is small，but it may undervalue the location of the phreatic line while the water level lowering velocity is large．

Key words: bank caving, lowering water level, homogeneous bank, phreatic line

中图分类号:

TV16

王俊杰，张梁，阎宗岭. 库水位等速下降中均质库岸塌岸现象试验研究[J]. 重庆交通大学学报（自然科学版）, 2011, 30(1): 115-119.

WANG Jun-jie ，ZHANG Liang ，YAN Zong-ling. Experiment Study on Homogeneous Bank Caving of Reservoir with Water Level Evenly Lowering[J]. Journal of Chongqing Jiaotong University(Natural Science), 2011, 30(1): 115-119.

参考文献

［1］ Dai F C，Deng J H，Tham L G，et al．A large landslide in ZiguiCounty，Three Gorges Area ［J］．Can．Geotech．J，2004，41:1233－1240．
［2］ Deng Q L，Zhu Z Y，Cui Z Q，et al．Mass rock creep and landslidingon the Huangtupo slope in the reservoir area of the ThreeGorges Project，Yangtze River，China［J］．Engineering Geology，2000，58(1):67－83．
［3］ Jappelli R，Musso A．Slope Response to Reservoir Water LevelFluctuations［C］/ /Proceedings of the 10th International Conferenceon Soil Mechanics and Foundation Engineering．Stockholm:A．A．Balkema，1981，3: 437－442．
［4］王跃敏，唐敬华，凌建明．水库塌岸预测方法研究［J］．岩土工程学报，2000，22(5):569－571．
WANG Yue－min，TANG Jing－hua，LING Jian－ming．Studyon prediction method for reservoir bank caving［J］．Chinese Journalof Geotechnical Engineering，2000，22(5):569－571．
［5］许强，黄润秋，汤明高，等．山区河道型水库塌岸研究［M］．北京: 科学出版社，2009．
XU Qiang，HUANG Run－qiu，TANG Ming－gao，et al．Studyon Bank Collapse of Mountain Channel-type Reservoirs［M］．Beijing:Science Press，2009．
［6］汤明高，许强，黄润秋，等．三峡库区塌岸预测参数及其影响因素研究［J］．成都理工大学学报: 自然科学版，2006，33(5):460－464．
TANG Ming－gao，XU Qiang，HUANG Run－qiu，et al．Study onthe forecasting parameters of the bank failure and the influence factorsin the Yangtze Three Gorges Project Region，China［J］．Journalof Chengdu University of Technology: Natural Science．，2006，33(5):460－464．
［7］ Morgenstern N R．Stability charts for earth slopes during rapiddrawdown［J］．Geotechnique，1963，13(2):121－131．
［8］ Lane P A，Griffiths D V．Assessment of stability of slopes underdrawdown conditions［J］．Journal of Geotechnical and GeoenvironmentalEngineering，2000，126(5):443－450．
［9］ Zhan Tony L T，Zhang W J，Chen Y M．Influence of reservoir levelchange on slope stability of a silty soil bank［C］/ / Proceedingsof the Fourth International Conference on Unsaturated Soils．US．:ASCE，2006: 463－472．
［10］ Jia G W，Zhan Tony L T，Chen Y M，et al．Performance of alarge-scale slope model subjected to rising and lowering water levels［J］．Engineering Geology，2009，106: 92－103．
［11］郑颖人，时卫民，孔位学．库水位下降时渗透力及地下水浸润线的计算［J］．岩石力学与工程学报，2004，23 (18):3203－3210．
ZHENG Ying－ren，SHI Wei－min，KONG Wei－xue．Calculationof seepage forces and phreatic surface under draw down conditions［J］．Chinese Journal of Rock Mechanics and Engineering，2004，23(18):3203－3210．
［12］王俊杰．土质沿河路基失稳机理及稳定性分析方法: 博士后研究工作报告［R］．重庆: 重庆大学，2009．
WANG Jun－jie．The Stability Analysis Method and InstabilityMechanism of Soil Subgrade along the River: Postdoctoral ResearchingReport［D］．Chongqing: Chongqing University，2009．
［13］ Yan Z L，Wang J J，Chai H J．Influence of water level fluctuationon phreatiu line in silty soil model slope［J］．Engineering Gelogy，2010，113(1－4):90－98．

[1]	丁静声，袁猛. 库水位上升对V型冲沟超高路堤稳定性的影响[J]. 重庆交通大学学报（自然科学版）, 2015, 34(4): 62-67.
[2]	向杰，唐红梅，陈鑫，梁学站，赵先涛. 库水位升降过程中土质岸坡地下水变化试验分析[J]. 重庆交通大学学报（自然科学版）, 2014, 33(3): 79-85.
[3]	罗胜平,许光祥,钟??亮. 土坝坝基防渗体对浸润线和渗流量的影响分析[J]. 重庆交通大学学报（自然科学版）, 2009, 28(5): 911-914.