| 何文明,郝国利,李少波,王亚会,邢小杰,郭爱请.岩质边坡崩塌地质灾害成因及稳定性分析[J].矿产勘查,2025,16(S1):299-305 |
| 岩质边坡崩塌地质灾害成因及稳定性分析 |
| Genetic mechanisms and stability evaluation of rock slope collapse disasters |
| 投稿时间：2023-03-06 |
| DOI：10.20008/j.kckc.2025S1037 |
| 中文关键词: 崩塌地质灾害 影响因素分析 崩塌体特征 稳定性评价 |
| 英文关键词: collapse geological hazard influencing factors characteristics of the collapsed mass stability assessment |
| 基金项目:本文受河北省地质环境监测院2021年度全省地质灾害防治技术支撑资金(HBDH-2021-47)和石家庄市2021年地质灾害防治能力提升项目(HBDH-2021-12)联合资助。 |
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| 中文摘要: |
| 本文以石家庄市鹿泉区栈道村东崩塌地质灾害治理项目为载体，对岩质边坡崩塌地质灾害产生的诱发因素进行阐述:地形地貌方面，高陡边坡和临空面的存在为崩塌提供了有利条件；地质构造因素如节理、裂隙的发育程度和组合关系直接控制着崩塌体的边界条件；降雨入渗会软化岩体结构面并产生动水压力，是崩塌的主要触发因素之一；地震作用通过惯性力加剧岩体结构面的剪切破坏；人类工程活动如开挖坡脚、爆破振动等直接破坏边坡稳定性。根据崩塌体的物质组成和运动特征，将其划分为滑移式、倾倒式和坠落式 3类，各类崩塌体具有不同的发育特征和破坏模式。在稳定性分析中，通过现场调查确定结构面产状、岩体力学参数等关键指标，选用相应的计算模型及公式对崩塌体在不同工况下的稳定性系数进行定量评价，研究成果可为工程采取治理措施，消除崩塌地质灾害隐患提供理论依据和技术参考。 |
| 英文摘要: |
| Taking the remediation project for the eastern collapse geological hazard in Zhandao Village， Luquan District，Shijiazhuang as a case study，this paper systematically analyzes the triggering factors of rockslope collapse. From the perspective of topography and geomorphology，the presence of steep slopes and free faces provides favorable conditions for collapse initiation. Geological structural factors，particularly the development degree and combination relationships of joints and fractures，directly control the boundary conditions of potential collapse masses. Rainfall infiltration，which softens rock mass structural planes and generates hydrodynamic pres. sure，serves as one of the primary triggering factors for collapse events. Seismic activities contribute to collapsethrough inertial forces that exacerbate shear failure along structural planes. Human engineering activities，includ. ing slope toe excavation and blasting vibrations，directly compromise slope stability. Based on material composi. tion and kinematic characteristics，collapse masses can be classified into sliding-type，toppling-type，and falling-type failures，each exhibiting distinct developmental features and failure patterns. For stability analysis，keyparameters such as structural plane occurrence and rock mass mechanical properties are determined through fieldinvestigations. Appropriate computational models and formulas are then employed to quantitatively evaluate stabil.ity coefficients under various working conditions. The findings provide theoretical foundations and technical refer.ences for implementing engineering remediation measures，ultimately contributing to the elimination of potential geological hazards associated with rock slope collapse. |
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