灾难性地震和降雨滑坡的体积与运动距离研究

›› 2012, Vol. 33 ›› Issue (10): 3051-3058.

灾难性地震和降雨滑坡的体积与运动距离研究

樊晓一^{1, 2}，乔建平³，韩萌²，曾耀勋²

1. 成都理工大学地质灾害防治与地质环境保护国家重点实验室，成都 610059；2. 西南科技大学土木工程与建筑学院，四川绵阳 621010；3. 中国科学院成都山地灾害与环境研究所，成都 610041

收稿日期:2011-06-06 出版日期:2012-10-10 发布日期:2012-10-19
作者简介:樊晓一，男，1974年生，博士，副教授，从事地质灾害和岩土工程教学与研究工作。
基金资助:
国家自然科学基金(No. 41272297)；国家科技支撑计划项目(No. 2011BAK12B01)；四川省教育厅重点项目(No. 09ZA130)

Volumes and movement distances of earthquake and rainfall-induced catastrophic landslides

FAN Xiao-yi^{1, 2}, QIAO Jian-ping³, HAN Meng², ZENG Yao-xun²

1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China; 2. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China; 3. Institute of Mountain Hazard and Environment, Chinese Academy of Sciences, Chengdu 610041, China

Received:2011-06-06 Online:2012-10-10 Published:2012-10-19

摘要/Abstract

摘要： 为预测和评价灾难性滑坡的致灾机制，基于国内近年来地震和降雨诱发的灾难性滑坡资料，对地震和降雨滑坡的等价摩擦系数H/L、最大水平运动距离L、最大垂直运动距离H与滑坡体积V的关系进行分析。研究灾难性地震和降雨滑坡的远程运动特征以及不同规模滑坡最大水平运动和垂直运动的优势距离。研究结果表明，滑坡的H/L、L、H与V具有幂律关系，其中H/L与V具有负幂律关系，L、H与V具有正幂律关系。同一规模等级的地震和降雨诱发灾难性滑坡的水平和垂直运动距离不同。以H/L＝0.42作为滑坡远程运动的标准，地震诱发的灾难性滑坡与滑坡远程运动的关系较小，而降雨诱发灾难性滑坡与滑坡的远程运动的关系较大。根据滑坡运动距离的累积分布表，以80%滑坡的运动距离所分布的范围，建立了滑坡不同规模等级的优势运动距离区间，同规模等级的地震滑坡和降雨滑坡在水平和垂直运动的优势距离区间上存在差异。灾难性滑坡的运程不仅受滑坡体积的控制还与其诱发机制相关，其研究成果可为由地震和降雨诱发的灾难性滑坡的致灾区域和致灾强度的预测和评价提供参考依据。

关键词: 地震滑坡, 降雨滑坡, 等价摩擦系数, 最大水平距离, 最大垂直距离

Abstract: To forecast and assess the hazard mechanism of catastrophic landslides, based on the data of earthquake and rainfall-induced catastrophic landslides, the relationships including the equivalent friction coefficient (H/L), the maximum horizontal distance (L), the maximum vertical distance (H) and the landslide volume (V) are studied. The relationships among H/L, L, H and V are power laws, in which there are negative power laws between H/L and V and the positive power laws among L, H and V. The horizontal and vertical movement distances of the seismic and the rainfall catastrophic landslides are different in the same scale. The H/L=0.42 is taken into consideration in the standard of landslide long-runout. It is not significant between seismic induced catastrophic landslides and the landslide long-runout, but there is remarkable relationship between rainfall induced catastrophic landslides and the landslide long-runout. The dominate distance of landslide movement can be analyzed based on the movement distances of the 80% landslides; the dominant distances of the horizontal and vertical movements of seismic and rainfall catastrophic landslides are different in the same scale. The results indicate that the movement distances of catastrophic landslides are not only controlled by the volumes but also related to occurrence mechanism. And they can provide references for forecasting and evaluating the hazard region and strength induced by the earthquake and the rainfall catastrophic landslides.

Key words: seismic landslides, rainfall landslides, equivalent friction coefficient, maximum horizontal distance, maximum vertical distance

中图分类号:

P 642. 22

樊晓一，乔建平，韩萌，曾耀勋 . 灾难性地震和降雨滑坡的体积与运动距离研究[J]. , 2012, 33(10): 3051-3058.

FAN Xiao-yi , QIAO Jian-ping , HAN Meng , ZENG Yao-xun . Volumes and movement distances of earthquake and rainfall-induced catastrophic landslides[J]. , 2012, 33(10): 3051-3058.

参考文献

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

[1]	杨涛，黄琳，冯君，吴红刚，戚宗柯，. 基于地震传播过程的滑坡动力稳定性分析[J]. , 2017, 38(9): 2708-2712.
[2]	申通，王运生，吴龙科. 重庆小南海滑坡形成机制离散元模拟分析[J]. , 2014, 35(S2): 667-675.
[3]	董金玉，王东，杨继红，黄志全 . 大型阶地型地震滑坡的成因机制和三维稳定性分析[J]. , 2013, 34(S1): 252-258.
[4]	顾成壮，杨鸿发，胡卸文，曾锦秀，罗刚 . 模糊综合评判法分析地震滑坡启程能量转换[J]. , 2012, 33(S1): 297-302.
[5]	王秀英，聂高众，王松. 利用模糊数学方法建立汶川地震滑坡灾害评判标准[J]. , 2011, 32(2): 403-0410.
[6]	樊晓一. 地震与非地震诱发滑坡的运动特征对比研究[J]. , 2010, 31(S2): 31-37.
[7]	汪华斌，Sassa Kyoji. 蒙特卡罗模拟在区域地震滑坡灾害评价中应用[J]. , 2007, 28(12): 2565-2569.