高陡岩质边坡变形破坏特征及控制研究

Study on Deformation and Failure Characteristics and Control of High and Steep Rock Slope

边坡的稳定性是国内外学者重要的研究内容之一,因为边坡无论是在建筑施工中还是在矿山开采中都有显著的危险隐患,尤其是露天矿山高陡岩质边坡,由于其本身的物理力学性质的影响,在爆破扰动条件下常常会发生局部冒落,在加上暴雨等极端条件,边坡的稳定性更是难以估量,这对露天矿山生产来说具有极大的威胁。因此文章采用力学试验的方法对高陡岩质边坡的物理力学性质进行了试验,并对边坡的岩体质量进行了分析,最后采用FLAC3D数值模拟技术对边坡的应力应变进行全面的分析研究。研究结果表明:边坡在暴雨的作用下边坡表面在不同位置产生了不同程度的岩石裂缝,并没有产生滑坡,但是边坡局部会有浮石冒落。边坡产生的明显位移为边坡局部岩体开裂所致。

The stability of slope is one of the important research contents of scholars at home and abroad,because slope has significant dangers in both construction and mining,especially for the high and steep rock slope in open pit mine,due to the influence of its physical and mechanical properties,local caving often occurs under blasting disturbance conditions,in addition to extreme conditions such as heavy rain,the stability of slope is more difficult to estimate,which poses a great threat to the production of open-pit mine.Therefore,this paper adopts the method of mechanical test to test the physical and mechanical properties of high and steep rock slope,and analyzes the quality of rock mass of the slope.Finally,FLAC3D numerical simulation technology is used to comprehensively analyze the stress and strain of the slope.The results show that under the action of heavy rain,rock cracks of different degrees are produced on the surface of the slope at different locations,and no landslide is produced,but pumice falls locally.The obvious displacement of the slope is caused by the cracking of local rock mass.