LI Ming-hui,LI Hao-ran,WANG Dong-hui.The Revival Mechanism and Devolopment Tendency of Yakaze Landslide in the Upper Reaches of Dadu River[J].Research of Soil and Water Conservation,2014,21(01):305-309.
大渡河上游亚喀则滑坡复活变形机理及发展趋势分析
- Title:
- The Revival Mechanism and Devolopment Tendency of Yakaze Landslide in the Upper Reaches of Dadu River
- Keywords:
- landslide; deformation and revival; creep-sliding; Dadu river
- 分类号:
- P642.22
- 摘要:
- 位于大渡河上游的亚喀则古滑坡，早期为顺层滑动，其变形复活与表水入渗、后缘崩塌加载和河流侵蚀作用密切相关。通过GPS监测和现场调查，发现滑坡变形具有同步性和变形趋势的一致性，不均一性明显，最大位移发生在滑坡前缘，年均位移达1.5 m/a，滑坡后缘为0.25 m/a，滑坡表现为长期缓慢的蠕滑变形，滑坡体上发育的多条纵张、横张与压剪性裂缝，使滑坡部分解体、整体性破坏，预测未来发生高速滑动的可能性不大。
- Abstract:
- Yakaze landslide locating on the upper reaches of Dadu river is an ancient accumulation landslide that has bedding sided at initial stage. Its revival and deformation mechanism is closely related to surface water infiltration, heap loading on the rear and river erosion. Through GPS monitoring and field in vestigate of the landslide show that the deformation is synchronous, consistent and unequal obviously, the biggest displacement has occurred in front edge of the landslide with an annual displacement of 1.5 m/a, the rear of 0.25 m/a, its deformation shows the characteristics of a long term creep-sliding. There are many vertical, horizontal and shearing pressure crack development, which partly disintegrated landslide and resulted in whole undermining of landslide. Based on the above results we draw a conclusion that a high-speed sliding is unlikely in the future.
参考文献/References:
[1] 潘桂棠,王培生,徐耀荣,等.青藏高原新生代构造演化[M].北京:地质出版社,1990.
[2] 蒋复初,吴锡浩.青藏高原东南部地貌边界带晚新生代构造运动[J].成都理工大学学报,1998,25(2):162-168.
[3] 李廷栋.青藏高原隆升的过程和机制[J].地球学报:中国地质科学院院报,1995(1):1-9.
[4] Huang M H, Buick I S, Hou L W. Tectonometamorphic evolution of the eastern Tibet Plateau:Evidence from the central Songpan-Garze orogenic belt, western China[J].Journal of Petrology,2003,44(2):255-278.
[5] Xue Dianjun, Jiang Mei, Wu Liangshi, et al. East-west division of regional gravity and magnetic anomalies on the Qinghai-Tibet Plateau and its tectonic features[J].Geology in China,2006,33(4):912-919.
[6] 李德威,庄育勋.青藏高原大陆动力学的科学问题[J].地质科技情报,2006,25(2):1-10.
[7] Chen W P, Yang Z. Earthquakes Beneath the Himalayas and Tibet:Evidence for strong lithospheric mantle[J].Science,2004,304(5679):1949-1952.
[8] Kumar S, Wesnousky S G, Rockwel T K, et al. Earthquake recurrence and rupture dynamics of Himalayan Frontal Thrust, India[J].Science,2001,294(5550):2328-2331.
[9] Chevalier M L, Ryerson F J, Tapponnier P, et al. Slip-Rate measurements on the Karakorum fault may imply secular variations in fault motion[J].Science,2005,307(5708):411-414.
[10] Zhang Pei-zhen, Molnar P, Downs W R. Increased Sedimentation rates and grain sizes 2-4 ma ago due to the influence of climate change on erosion rates[J].Nature,2001,410(6831):891-897.
[11] 黄润秋.20世纪以来中国的大型滑坡及其发生机制[J].岩石力学与工程学报,2007,26(3):433-454.
[12] 柴贺军,刘汉超,张倬元.大型崩滑堵江事件及其环境效应研究综述[J].地质科技情报:2000,19(2):87-90.
[13] 许强,陈伟,张倬元.对我国西南地区河谷深厚覆盖层成因机理的新认识[J].地球科学进展,2008,23(5):448-456.
[14] 石金良.大渡河深厚覆盖层及其工程地质问题[J].四川水力发电,1986(3):10-15.
[15] 中国水电顾问集团成都勘测设计研究院,中国科学院地质与地球物理研究所.四川省大渡河猴子岩水电站库尾段古雕群一带斜坡稳定性评价报告[R],2006.
[16] 王运生,黄润秋,段海澎,等.中国西部末次冰期一次强烈的侵蚀事件[J].成都理工大学学报:自然科学版,2006,33(1):73-76.
[17] 罗守成.对深厚覆盖层地质问题的认识[J].水力发电,1995(4):21-25.
[18] 杨天俊.深厚覆盖层岩组划分及主要工程地质问题[J].水力发电,1998(6):17-20.
[19] 张清志,郑万模,刘宇平,等.GPS在滑坡监测中的应用:以四川省丹巴县亚喀则滑坡为例[J].沉积与特提斯地质,2010,30(1):109-112.
[20] 贺可强,李显忠.大型堆积层滑坡剪出口形成的力学条件与综合位移力学判据[J].工程勘察,1995(5):13-16.
相似文献/References:
[1]张黎勇.皖南山区山体滑坡、泥石流的成因及其防治[J].水土保持研究,1997,4(01):171.
Zhang Liyong.The Cause and Prevention of Slideslope, Debris Flow in the Hilly Areas of Southern Anhui Province[J].Research of Soil and Water Conservation,1997,4(01):171.
[2]李树德.中国滑坡、泥石流灾害的时空分布特点[J].水土保持研究,1999,6(04):33.
Li Shude.The Temporal and Spacial Distribution of Landslide and Debris Flow Disasters in China[J].Research of Soil and Water Conservation,1999,6(01):33.
[3]李树德.武都滑坡剪切滑动带特征[J].水土保持研究,1999,6(04):38.
Li Shude.Characteristics of the Shear Slide Zone in Wudu[J].Research of Soil and Water Conservation,1999,6(01):38.
[4]袁仁茂,李树德,陈锁忠.镇江市滑坡规律研究及其发生原因探析[J].水土保持研究,1999,6(04):95.
Yuan Renmao,Li Shude,Cheng Suozhong.Study of Distribution Laws and Genesis of Landslides in Zhenjiang City[J].Research of Soil and Water Conservation,1999,6(01):95.
[5]邱向荣,郑健生,谭家明,等.上(陵)埔(前)高速公路沿线滑坡成因及稳定性评估[J].水土保持研究,2003,10(03):33.
QIU Xiang-rong,ZHENG Jian-sheng,TAN Jia-ming,et al.Causes and Stability Evaluation for Landslides Along the Speedway From Shangling to Puqian[J].Research of Soil and Water Conservation,2003,10(01):33.
[6]李树德,吕红华,袁仁茂.山地灾害与水土流失[J].水土保持研究,2003,10(03):107.
LI Shu-de,LÜ,Hong-hua,et al.Mountain Disasters and Soil and Water Loss[J].Research of Soil and Water Conservation,2003,10(01):107.
[7]王星,鲁胜力,周乐群.滑坡泥石流灾害及其防治策略探讨[J].水土保持研究,2005,12(05):138.
WANG Xing,LU Sheng-li,ZHOU Le-qun.The Preliminary Research of Slope-slide and Mud-rock Flow Disaster and Its Control Strategy[J].Research of Soil and Water Conservation,2005,12(01):138.
[8]吴义鹰,石豫川,王湘峰.小口滑坡特征及稳定性评价[J].水土保持研究,2006,13(01):151.
WU Yi-ying,SHI Yu-chuan,WANG Xiang-feng.Features of Xiaokou Landslide and the Stability Evaluation[J].Research of Soil and Water Conservation,2006,13(01):151.
[9]田宏岭,王成华.基于主从结构(Client/Server)的滑坡数据库系统[J].水土保持研究,2006,13(03):208.
TIAN Hong-ling,WANG Cheng-hua.The Landslide Database Based on Client/Server[J].Research of Soil and Water Conservation,2006,13(01):208.
[10]秦凯旭,石豫川,刘汉超,等.三峡库区某滑坡体成因机制分析与稳定性评价[J].水土保持研究,2006,13(05):84.
QIN Kai-xu,SHI Yu-chuan,LIU Han-chao,et al.Formation Mechanism and Stability Prediction of One Landslide in the Three Gorges Reservoir Area[J].Research of Soil and Water Conservation,2006,13(01):84.
备注/Memo
收稿日期:2013-05-24;改回日期:2013-06-24。
基金项目:国土资源大调查“甘孜地区地质灾害详细调查项目”（1212010114020）；“成渝经济区环境地质调查评价综合研究项目”（12120113004400）
作者简介:李明辉(1968-),男,教授级高级工程师,主要从事地质灾害调查、评价与研究。E-mail:Lmh680408@163.com