碎裂高边坡优化设计

发布时间：2018-05-08 17:33

本文选题：露天矿 + 边坡稳定　；参考：《北方工业大学》2015年硕士论文

【摘要】：在采用露天开采方法的矿山中,随着开采延深和边坡到界,坡高、坡角逐年增大并形成高陡边坡,因此,边坡失稳、滑塌等工程事故也不断增加,边坡稳定性问题日益受到重视和关注。露天矿边坡的构成是一个动态的过程,为了在效益最大化的前提下确保边坡稳定,必须对采场边坡进行优化设计。本文以是小龙潭矿务局布沼坝露天矿和金川石英石露天矿为工程实例,针对露天矿开采过程中人工开挖边坡与自然山体边坡的复合体稳定性及其控制技术进行研究,并取得了如下研究成果： 1、总结了现有边坡的稳定性评价方法,并应用于小龙潭布沼坝西帮边坡和金川石英石露天矿3-3边坡的稳定性评价。 2、对布沼坝露天矿西帮边坡的现状进行数值模拟和稳定性分析,得出其到界边坡处于临界状态,对不稳定的边坡提出来治理方案。 3、对布沼坝露天矿西帮342、344剖面分别提出三种优化设计方案,比选后出造价低、效益高的最优设计方案。 4、对金川石英石露天矿3-3剖面边坡进行数值模拟分析,得出了3-3剖面边坡应力场随开挖深度演变规律,给出了金川石英石露天矿3-3剖面的开采方案。
[Abstract]:In the mine of open pit mining method , as the mining depth and slope reach the boundary , slope height and slope angle increase year by year and form high - steep slope , the engineering accidents such as slope instability , collapse and other engineering accidents are constantly increasing , and the slope stability problem is getting more and more attention and attention . The construction of open - pit slope is a dynamic process . In order to ensure the stability of slope under the precondition of maximum benefit , the optimization design of the stope slope must be carried out .

In this paper , the stability and control technology of artificial excavated slope and natural mountain slope are studied in this paper , which is an example of open - pit mine and Jinchuan quartz - stone open - pit mine in Xiaolongtan Mining Bureau . The results are as follows :

1 . The stability evaluation method of the existing slope is summarized , and the stability evaluation of 3 - 3 side slope is applied to the west side slope and Jinchuan quartz stone open - pit mine of Xiaolongtan .

2 . Numerical simulation and stability analysis are carried out on the current situation of the west - cut slope of the open - pit mine of Bumpy Dam , and the critical state of the slope is obtained , and the control scheme is proposed to the unstable slope .

3 . Three optimal design schemes are proposed for the west sides 342 and 344 of the open - pit mine of Bubiogas dam , which is the best design scheme with low cost and high benefit .

4 . Numerical simulation analysis of 3 - 3 section slope of Jinchuan quartz stone open pit is carried out , and a 3 - 3 section slope stress field with the depth evolution of excavation is obtained , and the mining scheme of 3 - 3 section of Jinchuan quartz stone open pit mine is given .

【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD824.71

【参考文献】