中国矿业
中國礦業
중국광업
China Mining Magazine
2015年
9期
137-140
,共4页
有限元法%岩质边坡%数值模拟与分析%边坡稳定性
有限元法%巖質邊坡%數值模擬與分析%邊坡穩定性
유한원법%암질변파%수치모의여분석%변파은정성
finite element method%rock slope%numerical simulation and analysis%stability of rock slope
高大岩质边坡的稳定性对其下部建筑物和工业场地的安全至关重要,有限元强度折减法数值模拟分析岩质边坡破坏机制是一条对岩质边坡稳定性进行可靠分析的有效方法。文章结合强度折减理论的有限元应力分析法对柏泉选厂西边坡的开挖支护过程进行了数值模拟,能够科学分析边坡的变形破坏机制及演变过程。该方法把锚杆等支挡结构的共同作用和地下水的影响统一考虑,从而可以验证边坡加固措施的合理性,与其他方法相比实用性更强。边坡稳定模拟分析所依据的岩土物理力学参数来自工程地质勘察报告,数据真实可靠,分析结果切合实际。边坡稳定性分析结果直接指导边坡加固设计,根据边坡岩体应力情况调整锚杆规格和布局,从而使边坡加固措施更加安全可靠、经济合理。
高大巖質邊坡的穩定性對其下部建築物和工業場地的安全至關重要,有限元彊度摺減法數值模擬分析巖質邊坡破壞機製是一條對巖質邊坡穩定性進行可靠分析的有效方法。文章結閤彊度摺減理論的有限元應力分析法對柏泉選廠西邊坡的開挖支護過程進行瞭數值模擬,能夠科學分析邊坡的變形破壞機製及縯變過程。該方法把錨桿等支擋結構的共同作用和地下水的影響統一攷慮,從而可以驗證邊坡加固措施的閤理性,與其他方法相比實用性更彊。邊坡穩定模擬分析所依據的巖土物理力學參數來自工程地質勘察報告,數據真實可靠,分析結果切閤實際。邊坡穩定性分析結果直接指導邊坡加固設計,根據邊坡巖體應力情況調整錨桿規格和佈跼,從而使邊坡加固措施更加安全可靠、經濟閤理。
고대암질변파적은정성대기하부건축물화공업장지적안전지관중요,유한원강도절감법수치모의분석암질변파파배궤제시일조대암질변파은정성진행가고분석적유효방법。문장결합강도절감이론적유한원응력분석법대백천선엄서변파적개알지호과정진행료수치모의,능구과학분석변파적변형파배궤제급연변과정。해방법파묘간등지당결구적공동작용화지하수적영향통일고필,종이가이험증변파가고조시적합이성,여기타방법상비실용성경강。변파은정모의분석소의거적암토물리역학삼수래자공정지질감찰보고,수거진실가고,분석결과절합실제。변파은정성분석결과직접지도변파가고설계,근거변파암체응력정황조정묘간규격화포국,종이사변파가고조시경가안전가고、경제합리。
The stability of high rock slope is very important to the safety of its lower building and industrial site.Simulation and analysis on failure mechanism of rock slope by finite element strength reduction method is an effective way of analysis on reliable stability of rock slope.In this study,finite element stress analysis method which combined with strength reduction theory was used to numerically simulate excavation and support processes in west slope of Baiquan Iron ore mine,and can scientifically analyze mechanism of deformation and failure and evolution process of slope.This is a more practical method in which interaction of supporting and retaining structure such as anchor etc.and the effect of groundwater are synthetically considered,and can verify rationality of slope reinforcement measures.The physics and mechanics index of soil and rock accorded in simulating and analyzing on stability of slope are from engineering geological investigation report and more reliable,and the analysis result is practicable.The analysis result of slope stability can be applied to guide directly strengthening design of slope,to adj ust size and layout of anchors in according with stress condition of rock slope,to make reinforcement measures of slope to be more safe,reliable,economic and reasonable.