[1]王念秦,杨盼盼,王得楷,等.盐锅峡黑方台黄土塬塬坡地下水浸润带研究[J].西安科技大学学报,2017,(01):51-56.[doi:10.13800/j.cnki.xakjdxxb.2017.0109]
 WANG Nian-qin,YANG Pan-pan,WANG De-kai,et al.Underground water infiltration areaof slope at the edge of loess “yuan”,Heifangtai,Yanguoxia[J].Journal of Xi'an University of Science and Technology,2017,(01):51-56.[doi:10.13800/j.cnki.xakjdxxb.2017.0109]
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盐锅峡黑方台黄土塬塬坡地下水浸润带研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2017年01期
页码:
51-56
栏目:
出版日期:
2017-01-30

文章信息/Info

Title:
Underground water infiltration areaof slope at the edge of loess “yuan”,Heifangtai,Yanguoxia
文章编号:
1672-9315(2017)01-0051-06
作者:
王念秦1杨盼盼1王得楷2魏精瑞1
1.西安科技大学 地质与环境学院,陕西 西安 710054; 2.甘肃省科学院 地质自然灾害防治研究所,甘肃 兰州 730000
Author(s):
WANG Nian-qin1YANG Pan-pan1WANG De-kai2WEI Jing-rui1
1.College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Geological Hazards Prevention Institute,Gansu Academy of Science,Lanzhou 730000,China
关键词:
坡体浸润比 塬坡 地下水浸润带 数值模拟
Keywords:
Key words:infiltration ratio of slope mass loess “yuan” groundwater phreatic stripes numerical simulation
分类号:
TD 12
DOI:
10.13800/j.cnki.xakjdxxb.2017.0109
文献标志码:
A
摘要:
黄土塬区灌溉是一种常见的人类活动,这种活动不仅会引起塬区地下水浸润带的变化,而且对黄土塬边斜坡(简称塬坡)稳定性影响显著,常常形成斜坡灾害(滑坡)。以甘肃省永靖县盐锅峡黑方台黄土塬边典型斜坡为例,首次提出“坡体浸润比”的概念,并利用边界调查、实验分析、数值模拟等方法探寻地下水浸润带的演化特征,定量分析了地下水浸润带与塬坡稳定性的关系,得到2点重要结论:①地下水浸润带锋面位置变化与地下水位升降为函数关系。即,地下水浸润带锋面位置随时间的上升幅度与塬区地下水位上升速度有关,呈时间正相关,表达式为s(x,t)=vtM(x,t); ②“坡体浸润比”(ζ)与塬坡稳定性密切相关,ζ存在拐点,当ζ≤0.170时,塬坡稳定系数缓慢降低,对塬坡稳性影响不明显; 当ζ≤0.170时,塬坡稳定系数急剧降低,对塬坡稳定性影响显著。
Abstract:
Abstract:The irrigation activity is often occurred in loess “yuan” region.This activity not only keeps changing the underground water infiltration area,but also obviously affects the stability of the slope at the edge of loess “yuan”(“yuan”slope for short),and often causes landslide disaster.Taking a typical slope at the edge of loess “yuan” in Heifangtai,Yanguoxia,Yongjing county,Gansu province as an example,we put forward a concept called “Infiltration ratio of slope mass”.For exploring the function of the evolvement feature of underground water phreatic stripe and analysing the relationship between groundwater phreatic stripe and the stability of slope,we investigated the characteristics of slope shape and underground water.We also carried out experimental analysis and numerical simulation.Two important conclusions have been drawn:①there is an quadric relationship between the change of the frontal surface of the underground water infiltration area and the rise-fall of underground water level,i.e.,the rise of the frontal surface of the underground water infiltration area is related to the rising velocity of the underground water level,which presents positive correlation with time.The expression iss(x,t)=vtM(x,t).②The “Infiltration ratio of slope mass”(ζ)is closely related to the stability of slope,and the ‘ζ' has an knee point:when ζ≤0.170,the stability coefficient decreases slowly and has little influence on slope; when ζ≥0.170,the stability coefficient decreases sharply and has obviously influence on slope.

参考文献/References:

[1] 任仓钰.农业灌溉引起的环境地质问题[J].地质灾害与环境保护,2002,13(4):14-15. REN Cang-yu.Environmental geologic issues arising from farm irrigation[J].Journal of Geological Hazards and Environment Preservation,2002,13(4):14-15. [2]王俊卿,李 靖,李 琦,等.黄土高边坡稳定性影响因素分析——以宝鸡峡引水工程为例[J].岩土力学,2009,30(7):2 114-2 118. WANG Jun-qing,LI Jing,LI Qi,et al.Analysis of influence factors of high slope stability of loess:Taking the Baojixia Water Division Project for example[J].Rock and Soil Mechanics,2009,30(7):2 114-2 118. [3]孙萍萍,张茂省,朱立峰,等.黄土湿陷典型案例及相关问题[J].地质通报,2013,32(6):847-851. SUN Ping-ping, ZHANG Mao-sheng,ZHU Li-feng,et al.Typical case study of loess collapse and discussion on related problems[J].Geological Bulletin of China,2013,32(6):847-851. [4]董 英,贾 俊,张茂省,等.甘肃永靖黑方台地区灌溉诱发作用与黄土滑坡响应[J].地质通报,2013, 32(6):893-898. DONG Ying,JIA Jun,ZHANG Mao-sheng,et al.An analysis of the inducing effects of irrigation and the responses of loess landslides in Heifangtai area[J].Geological Bulletin of China,2013,32(6):893-898. [5]卢全中,彭建兵.黄土体结构面的发育特征及其灾害效应[J].西安科技大学学报,2006,26(4):446-450. LU Quan-zhong,PENG Jian-bing.Characteristics of structural planes of loess mass in loess plateau of China and its hazard effect[J].Journal of Xi'an University of Science and Technology,2006,26(4):446-450. [6]王念秦,姚 勇,周自强,等.农村乡镇地质灾害易发性综合评价方法研究[J].西安科技大学学报,2008,28(4):657-661. WANG Nian-qin,YAO Yong,ZHOU Zi-qiang,et al.Comprehensive evaluationmethod for geological disasters-prone of rural township[J].Journal of Xi'an University of Science and Technology,2008,28(4):657-661. [7]王家鼎,惠泱河.黄土地区灌溉水诱发滑坡群的研究[J].地理科学,2002,22(3):305-310. WANG Jia-ding,HUI Yang-he.Landslides in crows induced by irrigated water in loess area[J].Scientia Geographica Sinica,2002,22(3):305-310. [8]郑志勇.黄土滑坡的形成机理[J].西安科技大学学报,2008,28(4):694-697. ZHENG Zhi-yong.Analysis on the formative mechanism of the loess landslides[J].Journal of Xi'an University of Science and Technology,2008,28(4):694-697. [9]Desai C S.Drawdown analysis of slopes by numerical method[J].Journal of the Geotechnical Engineering,1977,103(GT7):667-676. [10]Griffiths D V,Lane P A.Slope stability analysis by finite elements[J].Geotechnique,1999,49(3):387-403. [11]王念秦,罗东海.黄土斜(边)坡表层冻结效应及其稳定响应[J].工程地质学报,2010,18(5):760-765. WANG Nian-qin,LUO Dong-hai.Freezing effect on loess slope and its stability response[J].Journal of Engineering Geology,2010,18(5):760-765. [12]杨 金,简文星,杨虎锋,等.三峡库区黄土坡滑坡浸润线动态变化规律研究[J].岩土力学,2012,33(3):853-858. YANG Jin,JIAN Wen-xing,YANG Hu-feng,et al.Dynamic variation rule of phreatic line in Huangtupo landslide in Three Gorges reservoir area[J].Rock and Soil Mechanics,2012,33(3):853-858. [13]周跃峰,谭国焕,甄伟文,等.入渗诱发黄土滑坡的力学机制[J].岩土力学,2013,34(11):3 173-3 176. ZHOU Yue-feng,TAN Guo-huan,ZHEN Wei-wen,et al.Mechanism of infiltration induced loess landslides[J].Rock and Soil Mechanics,2013,34(11):3 173-3 176. [14]杨 飞.黑方台灌溉诱发黄土滑坡变形机理研 究[D].西安:长安大学,2013. YANG Fei.Study on the irrigation induced mechanism of loess landslide deformation of Hei Fangtai[D].Xi'an:Chang'an University,2013. [15]马健全.黑方台灌区台缘黄土滑坡稳定性研究[D].长春:吉林大学,2012. MA Jian-quan.Stability analysis of loess landslide in loess tableland edge of Heifangtai irrigation area[D].Changchun:Jilin University,2012. [16]谷天峰,朱立峰,胡 炜,等.灌溉引起地下水位上升对斜坡稳定性的影响——以甘肃黑方台为例[J].现代地质,2015,29(2):408-413. GU Tian-feng,ZHU Li-feng,HU Wei,et al.Effect on slope stability due to groundwater rising caused by irrigation:A case study of Heifang platform in Gansu,China[J].Geoscience,2015,29(2):408-413. [17]贾 俊,朱立峰,胡 炜.甘肃黑方台地区灌溉型黄土滑坡形成机理与运动学特征——以焦家崖头13号滑坡为例[J].地质通报,2013,32(12):1 968-1 975. JIA Jun,ZHU Li-feng,HU Wei.The formation mechanism and disaster mode of loess landslides induced by irrigation in Heifangtai,Gansu Province:A case study of the 13th landslide in Jiaojiayatou[J].Geological Bulletin of China, 2013, 32(12):1 968-1 975. [18]刘 博.库水下降条件下土体渗流对边坡稳定性的影响研究[D].长沙:中南大学,2014. LIU Bo.The influence research of soil seepage on slope stability under reservoir drawdown condition[D].Changsha:Central South University,2014. [19]吴 琼,林志红.库水位下降时隔水底板倾斜的层状岸坡中浸润线的解析解[J].地质科技情报,2007,26(2):91-94. WU Qiong,LIN Zhi-hong.Analytic solutions for shallow water table innclined and layered slope under drawdown condition[J].Geological Science and Technology Information,2007,26(2):91-94. [20]李佩成.地下水非稳定渗流解析法[M].北京:科学出版社,1990. LI Pei-cheng.The analytical method of groundwater unsteady seepage[M].Beijing:Science Press,1990. [21]张蔚榛.地下水非稳定流计算和地下水资源评价[M].北京:科学出版社,1983. ZHANG Wei-zhen.The calculation of unsteady flow of groundwater and the evaluation of groundwater resources[M].Beijing:Science Press,1983.

备注/Memo

备注/Memo:
基金项目:国家自然科学基金(41572287); 国家自然科学基金(41130753); 陕西省科技统筹创新工程计划项目(2013KTCL03-15); 陕西省煤田地质局科技计划项目(JB2014-4) 通讯作者:王念秦(1964-)男,河南孟津人,教授,工学博士,E-mail:younglock@163.com
更新日期/Last Update: 1900-01-01