青海松树南沟矿区台阶边坡破坏类型分析

摘要

The structural plane is main internal factor of determining rock slope stability .During the mine digging ,the new steps slopes provide new boundary conditions to the failure of rock slope ,which results in partial failure .This paper uses the Dips software to get the structural plane's dominant occurrences by field investigation ,measuring and counting the occurrences of structural plane .The relationship among dominant occurrences ,dip angle and dip direction of slope is used to analyze the failure type and boundary conditions of steps slope in different engineering geology zoning .Finally ,the main failure type and distribution areas of rock slope in the Qinghai Songshunangou open-pit mine is obtain to provide strong support for safety in production in the open-pit mine .%岩体结构面发育特征是控制岩质边坡稳定性的主要内在因素。在矿山开挖过程中，新形成的台阶为岩体破坏提供了新的边界条件，从而导致岩质台阶的局部破坏。本文通过现场调查和结构面测量与统计，采用Dips软件获得松树南沟矿区的结构面优势产状。通过结构面及其组合与边坡倾向和倾角的关系，分析不同工程地质分区中台阶的变形破坏形式及其边界条件。最终得到了矿区岩质台阶破坏的主要形式以及主要分布区域，为矿区的安全生产提供依据。