[1]蒋先刚,葛永刚,雷雨,等.苏坡店沟“7·10”泥石流破坏都汶公路毛家湾大桥机理[J].山地学报,2015,(03):311.
　JING Xiangang,GE Yonggang,et al.The Failure Mechanism of Maojiawan Bridge by“7·10”Debris Flows[J].Mountain Research,2015,(03):311.
点击复制

苏坡店沟“7·10”泥石流破坏都汶公路毛家湾大桥机理()
分享到：

《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2015年03期
页码:
311
栏目:
山地灾害
出版日期:
2015-06-01

文章信息/Info

Title:
The Failure Mechanism of Maojiawan Bridge by“7·10”Debris Flows
作者:
蒋先刚;葛永刚;雷雨;郭朝旭;
中国科学院山地灾害与地表过程重点实验室/中国科学院水利部成都山地灾害与环境研究所;中国科学院大学;
Author(s):
JING Xiangang; GE Yonggang; LEI Yu; GUO Chaoxu
1.Key Lab.of Mountain Hazards and Earth Surface Progress/Insti.ofMountain Hazards and Environment, CAS, Chengdu 610041, China； 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
泥石流; 冲刷; 桥墩; 机理
Keywords:
debris flows;  scour;  pier;  mechanism
分类号:
P642.23，U416.1
文献标志码:
A
摘要:
2013-07-10四川省汶川县岷江干流沿线群发性泥石流(简称"7·10"泥石流)对都(江堰)汶(川)公路(G213线)和都汶高速桥梁、路基、隧道造成重大破坏,G213线和都汶高速共16处中断,尤以G213线破坏严重。苏坡店沟毛家湾大桥是"7·10"泥石流冲毁桥梁、造成交通中断的典型模式。在野外调查、采样和数据分析的基础上,确定苏坡店"7·10"泥石流的重度18.5 k N/m2,流速9.3 m/s,峰值流量232.5 m3/s,剪应力13.3 k Pa。高速、大流量泥石流沿陡峻的主沟排泄过程中,强烈侵蚀和起动沟床,左侧桥基基础强烈淘蚀悬空,形成1.65 m宽的临空面;在泥石流的作用下,桥基沿...
Abstract:
The catastrophic debris flows on July 10, 2013 resulted in huge destruction to Dujiangyan-Wenchuan highway (G213) in Sichuan Province of China.The highways were seriously destructed and blocked in 16 sites, which were induced by 7collapsed bridges and base, 2 of 7 destructed were scoured by debris flow. Based on field investigation and analysis, the parameters were calculated, which were the density of 1.88 g/cm3, the velocity of 9.3 m/s, the peak flow of 232.5 m3/s, and yield stress of debris flows１of 13.3 kPa. The debris flows scoured the foundation of the bridge down the steep gully seriously, the pier lost its stability and the bridge collapsed. The calculation indicates that: the soil below the pier is scoured away by the debris flow leading to the pier overhanging，and the lateral length reaches 1.65 m; on the other hand, the water in debris flows should run into the foundation soil, which reduces the soil’s strength. The pier failed when the maximum pressure（545 kPa）of the foundation exceeding the allowable bearing capacity, then the bridge destroyed. By the analysis of the failure model and mechanism of Maojiawan Bridge, it suggests that debris flow drainage channel; clearance under the bridge and special protective projects should be carried out for highway protection and traffic security.

参考文献/References:

[1] Ge Y G, Zou Q, Zhang J Q, et al. Hazards on Dujiangyan-Wenchuan Highways Induced by Catastrophic Debris Flows on July 10 2013 and Prevention[J]. Applied Mechanics and Materials, 2014, 501:2463-2472
[2] Wang Yuyi, Hu Kaiheng, Wei Fangqiang, et al. Relationship between rheology/erosion deposit properties of debris flow and its hazard degree[J]. Journal of Natural Disasters, 2007, 16(1): 17-22[王裕宜, 胡凯衡, 韦方强, 等. 泥石流体的流变和冲淤特征及其与危险度的关系[J]. 自然灾害学报, 2007, 16(1): 17-22]
[3]You Yong, Cheng Zunlan. The influence of discontinuous motion of viscous debris flow on erosion and deposition of gully bed ——Study of the case at Jiangjia gully in Dongchuan, Yunnan[J]. Journal of Disaster Prevention and Mitigation Engineering, 2006, 25(2):146-151[游勇, 程尊兰. 粘性泥石流阵性运动对沟床冲淤演变的影响——以云南东川蒋家沟为例[J]. 防灾减灾工程学报, 2006, 25(2): 146-151]
[4] Zhu Xinghua, Cui Peng, Zhou Gongdan, et al. Experimental study on the erosion law of diluted debris flow[J]. Shui li Xue bao(Journal of Hydraulic Engineering), 2012, 2:85-91[朱兴华, 崔鹏, 周公旦, 等. 稀性泥石流冲刷规律的试验研究[J]. 水利学报, 2012, 2:85-91]
[5] Zhao Yanbo, You Yong, Liu Jinfeng, et al. Experimental study on gully bed erosion depth of viscous debris flow[J]. Shui li Xue bao(Journal of Hydraulic Engineering), 2012, 2:92-97[赵彦波, 游勇, 柳金峰, 等. 黏性泥石流沟床冲刷深度试验研究[J]. 水利学报, 2012, 2:92-97]
[6]Liu Jinfeng, You Yong, Chen Xingchang. Potential damages and identification of debris flow barrier lakes in the upper Min River Drainage[J]. Scientiageographica Sinica, 2012, 32(7):885-891[柳金峰,游勇,陈兴长.岷江上游潜在性泥石流堰塞湖危害及判识[J]. 地理科学,2012,32(7):885-891]
[7]Du Rongheng, Kang Zicheng, Chen Xunqian, et al. Debris flow research in the Xiaojiang River basin: a review and perspective [M]. Chongqin:Science and Technique Press at Chongqing division, 1987: 94-113[ 杜榕桓, 康志成, 陈循谦, 等. 云南小江泥石流综合考察与防治规划研究[M].重庆: 科学技术文献出版社重庆分社, 1987: 94-113]
[8] Fei Xiangjun, Su Anping. Movement mechanism and disaster control for debris flow[M]. Beijing: Press of University Tsinghua, 2003: 12-15[费翔俊, 舒安平. 泥石流运动机理与灾害防治[M].北京: 清华大学出版社, 2003: 12-15]
[9] Zhang Xinbao, Liu Jiang. Debris flows in the basin of Dayinjiang, Yunnan, China[M]. Chengdu: Map Press of Chengdu,1989: 35-64[张信保, 刘江. 云南大盈江流域泥石流[M].成都:成都地图出版社, 1989: 35-64]
[10] Institution of Mountain Disaster and Environment，CAS. Research and prevention of debris flow[M].Chengdu: Science and Technique Press of Sichuan, 1989: 1-2, 95-96, 165-167[中国科学院成都山地灾害与环境研究所. 泥石流研究与防治[M].成都: 四川科学技术出版社,1989: 1-2, 95-96, 165-167]
[11]Bin Yu. Research on the calculating density by the deposit of debris flows[J]. Acta Sedimentologica Sinica, 2008, 26(5):789-796[余斌.泥石流沉积物计算泥石流容重的方法研究[J].沉积学报,2008,26(5):789-796]
[12]Ma Yu, Yu Bin, Wu Yu-fu, et al. Research on the disaster of debris flow of Bayi Gully, Longch, Dujiangyan, Sichuan on August 13, 2010[J]. Journal of Sichuan University：Engineering Science Edition，2011, 43(Suppl.1):92-98 [马煜,余斌,吴雨夫,等.四川都江堰龙池 “8·13” 八一沟大型泥石流灾害研究[J].四川大学学报：工程科学版，2011,43(增1):92-98]
[13]Chen Guangxi, Wang Jikang, Wang Linhai. The prevention of debris flow[M]. Beijing:China Rallwang Press,1983:71[陈光曦, 王继康, 王林海. 泥石流防治[M].北京：中国铁道出版社，1983:71]
[14]Simon A, Wolfe W J, Molinas A. Mass wasting algorithms in an alluvial channel model[G]//5th Federal Interagency Sedimentation Conference, Subcommand on Sedimentation, Las Vegas, Nev. 1991:22-29
[15]Graf W H. Hydraulics of sediment transport[M]. Water Resources Publication, 1984:513
[16]Tang Cunben. Laws of sediment incipient motion[J].Journal of Hydraulic Engineering, 1963, 1: 1-12[唐存本. 泥沙起动规律[J]. 水利学报,1963,1:1-12]
[17]Wang Xinhong. Development and application of A numerieal model for bank erosion and sediment transport in alluvial rivers[D].Xi’an：Xi’an University of Technology, 2000:48-49[王新宏. 冲积河道纵向冲淤和横向变形数值模拟研究及应用[D].西安：西安理工大学， 2000:48-49]
[18]Chang D S, Zhang L M, Xu Y, et al. Field testing of erodibility of two landslide dams triggered by the 12 May Wenchuan earthquake [J]. Landslides, 2011, 8(3):321-332
[19] The National Standards Compilation Group of People’s Republic of China. GB50010-2010 Code for design of concrete structures [S]. Beijing：China Architecture and Building Press，2010:19-20 [中华人民共和国国家标准编写组.GB 50010-2010 混凝土结构设计规范[S].北京：中国建筑工业出版社，2010:19-20]
[20] The National Standards Compilation Group of People’s Republic of China. JTG D60-2004 General code for design of highway bridges and culverts [S]. Beijing：China Communication Press，2004: 20 [ 中华人民共和国国家标准编写组.JTG D60-2004 公路桥涵设计通用规范[S].北京：人民交通出版社，2004:20]
[21]The National Standards Compilation Group of People’s Republic of China. JTG D63-2007 Specifications for Design of Ground Base and Foundation of Highway Bridges and Culverts [S]. Beijing：China Communication Press，2007: 26-27 [中华人民共和国国家标准编写组.JTG D63-2007 公路桥涵地基及基础设计规范[S]. 北京：人民交通出版社，2007:26-27]

相似文献/References:

[1]蒋志林,朱静,常鸣,等.汶川地震区红椿沟泥石流形成物源量动态演化特征[J].山地学报,2014,(01):81.
　JIANG Zhilin,ZHU Jing,CHANG Ming,et al.Dynamic Evolution Characteristics of Hongchun Gully Source Area of Debris Flow in Wenchuan Earthquake Region[J].Mountain Research,2014,(03):81.
[2]常鸣,唐川,蒋志林,等.强震区都江堰市龙池镇泥石流物源的遥感动态演变[J].山地学报,2014,(01):89.
　CHANG Ming,TANG Chuan,JIANG Zhilin,et al.Dynamic Evolution Process of Sediment Supply for Debris Flow Occurrence in Longchi of Dujiangyan，Wenchuan Earthquake Area[J].Mountain Research,2014,(03):89.
[3]王 钧,欧国强,杨 顺,等.地貌信息熵在地震后泥石流危险性评价中的应用[J].山地学报,2013,(01):83.
　WANG Jun,OU Guoqiang,YANG Shun,et al.Applicability of Geomorphic Information Entropy in the Postearthquake Debris Flow Risk Assessment[J].Mountain Research,2013,(03):83.
[4]王东坡,何思明,葛胜锦,等.“9?07”彝良地震诱发次生山地灾害调查及减灾建议[J].山地学报,2013,(01):101.
　WANG Dongpo,HE Siming,GE Shengjin,et al.Mountain Hazards Induced by the Earthquake of Sep 07，2012 in Yiliang and the Suggestions of Disaster Reduction[J].Mountain Research,2013,(03):101.
[5]喻 武,万 丹,汪书丽,等.藏东南泥石流沉积区植物群落结构和物种多样性特征[J].山地学报,2013,(01):120.
　YU Wu,WAN Dan,WANG Shuli,et al.Community Structure and Species Diversity of Debris Flow Deposition Area in Southeast of Tibet,China[J].Mountain Research,2013,(03):120.
[6]崔鹏,陈晓清,张建强,等.“4·20”芦山7.0级地震次生山地灾害活动特征与趋势[J].山地学报,2013,(03):257.
　CUI Peng,CHEN Xiaoqing,ZHANG Jianqiang,et al.Activities and Tendency of Mountain Hazards Induced by the Ms7.0 Lushan Earthquake，April 20，2013[J].Mountain Research,2013,(03):257.
[7]邹强,崔鹏,杨伟,等.G318川藏公路段泥石流危险性评价[J].山地学报,2013,(03):342.
　ZOU Qiang,CUI Peng,YANG Wei.Hazard Assessment of Debris Flows along G318 Sichuan-Tibet Highway[J].Mountain Research,2013,(03):342.
[8]王根龙,张茂省,于国强,等.舟曲2010年“8·8”特大泥石流灾害致灾因素[J].山地学报,2013,(03):349.
　WANG Genlong,ZHANG Maosheng,YU Guoqiang,et al.Factor Analysis for Catastrophic Debris Flows on August 8，2010 in Zhouqu City of Gansu，China[J].Mountain Research,2013,(03):349.
[9]陈源井,余斌,朱渊,等.地震后泥石流临界雨量变化特征——以汶川地震区小岗剑沟为例[J].山地学报,2013,(03):356.
　CHEN Yuanjing,YU Bin,ZHU Yuan,et al.Characteristics of Critical Rainfall of Debris Flow after Earthquake——A Case Study of the Xiaogangjian Gully[J].Mountain Research,2013,(03):356.
[10]游勇,柳金峰,陈兴长,等.芦山“4·20”地震后宝兴县城打水沟泥石流发育趋势及防治方案[J].山地学报,2013,(04):495.
　YOU Yong,LIU Jinfeng,CHEN Xingzhang.The Potential Tendency and Mitigation Measures of Dashui Gully in Baoxing Coutny after Lushan“4?20”Earthquake of Schuan[J].Mountain Research,2013,(03):495.

备注/Memo

备注/Memo:
收稿日期(Received date)：2014-06-10；修回日期（Accepted）：2014-09-05。
基金项目（Foundation item）：国家自然科学基金重点项目（41030742）；国家科技支撑计划课题（2012BAK10B04）；灾害风险综合研究计划中国委员会（IRDR-CHINA）资助项目（IRDR2012-Y01）。[Supposed by the National Natural Science Foundation of China(41030742) and National Key Technology R&D Program(2012BAK10B04)；Project （Grant No. IRDR2012-Y01）supported by Chinese National Committee for Integrated Research on Disaster Risk (IRDR-CHINA).]
作者简介（Biography）：蒋先刚（1987-），男，博士研究生。从事岩土工程相关研究。[Jiang Xiangang(1987-),Candidate Ph.D， Specialized in mountain hazards and geotechnical engineering.] Email: jxgjim@163.com
更新日期/Last Update: 1900-01-01