[1]朱勇威,胡军安,胡 鹏. 库水下降与降雨作用下滑坡变形特征和破坏机理[J].湖北工业大学学报,2023,(4):111-116.
　ZHU Yongwei,HU Junan,HU Peng. Exploration on the Deformation Characteristics and Damage Mechanism of Landslide Under the Action of Reservoir Water Decline and Rainfall[J].,2023,(4):111-116.
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 库水下降与降雨作用下滑坡变形特征和破坏机理()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2023年第4期
页码:
111-116
栏目:
湖北工业大学学报
出版日期:
2023-08-30

文章信息/Info

Title:
 Exploration on the Deformation Characteristics and Damage Mechanism of Landslide Under the Action of Reservoir Water Decline and Rainfall
文章编号:
1003-4684(2023)04-0117-06
作者:
 朱勇威;  胡军安;  胡 鹏
 湖北工业大学土木建筑与环境学院， 湖北 武汉 430068
Author(s):
 ZHU Yongwei;  HU Jun’an;  HU Peng
 School of Civil Engin.,Architecture and Environment,Hubei Univ. of Tech.,Wuhan 430068,China
关键词:
 ; 库水下降;  降雨作用;  变形破坏机理;  失稳破坏
Keywords:
 ; reservoir water fall;  rainfall;  deformation damage mechanism;  instability damage
分类号:
TU43
文献标志码:
A
摘要:
 为探讨库区滑坡变形特征以及失稳破坏情况，本文概化制作了白家包滑坡物理试验模型，模拟水库蓄水作用，以及水库蓄水和降雨共同作用的工况，通过试验获得滑坡监测点的孔隙水压力、土压力以及滑坡位移。得到以下结论：库水下降会诱发滑坡坡脚局部牵引式崩塌，从而地下水补给库水使得孔隙水压力不断下降，地下水位以上土体排水固结容重减小，导致土压力值持续降低，滑坡出现轻微蠕动；库水下降与降雨联合作用下滑坡稳定性明显降低，坡脚发生失稳破坏，相对于滑坡而言，整体发生牵引式崩塌的风险更大。试验揭示了在库水下降与降雨共同作用下滑坡变形的破坏机理，为此类滑坡的研究提供参考。
Abstract:
 In order to explore the deformation characteristics and destabilization damage of the reservoir landslide, this paper generalizes the physical test model of Baijiabao landslide to simulate the reservoir storage effect and working conditions of the combined effect of reservoir storage and rainfall, and obtains the pore water pressure, soil pressure and landslide displacement of the landslide monitoring point through the test. The following conclusions are obtained: the decline of reservoir water will induce local traction collapse at the foot of the landslide, thus the pore water pressure decreases continuously due to groundwater recharge, and the soil drainage consolidation capacity above the water table decreases, resulting in a continuous decrease of soil pressure and slight creep of the landslide; the stability of the landslide decreases significantly under the combined effect of reservoir water decline and rainfall, and instability damage occurs at the foot of the slope, compared with the landslide, the overall risk of traction collapse is greater. The risk of overall traction landslide is greater than that of landslide. The test reveals the damage mechanism of landslide deformation under the combined effect of reservoir water fall and rainfall, and provides a reference for the study of such landslides.

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备注/Memo

备注/Memo:
 ［收稿日期］ 2021-12-24
［基金项目］ 三峡后续工作地质灾害防治项目（0001212015CC0005）
［第一作者］ 朱勇威（1994—），男，湖北黄石人，湖北工业大学硕士研究生，研究方向为土木与水利工程。
更新日期/Last Update: 2023-08-26