本文選題：邊坡工程　切入點：大光包滑坡　出處：《巖石力學與工程學報》2017年S1期

【摘要】：針對目前大光包滑坡滑帶碎裂巖體力學強度參數缺乏研究這一問題,提出基于改進后的Hoek-Brown準則獲取巖體力學強度參數的新方法。該方法首先通過巖體基本質量指標BQ、巖體結構等級SR、結構面表面等級SCR與結構面條件因子J_c分別對地質強度指標GSI進行量化取值;在此基礎上,建立由巖體基本質量指標BQ估算擾動參數D的計算公式;并以現場調查和室內巖石力學試驗為基礎,將改進后的方法代入Hoek-Brown準則中,對大光包滑坡滑帶碎裂巖體的力學強度參數進行評價。與E.Hoek建議法相比,改進后的方法獲取的巖體力學參數偏小,更為接近前人研究中的建議值,證明該方法具有一定的合理性。
[Abstract]:In view of the lack of research on mechanical strength parameters of fractured rock mass in Daguangbao landslide slide zone at present, A new method for obtaining mechanical strength parameters of rock mass based on the improved Hoek-Brown criterion is proposed. Firstly, the basic quality index of rock mass, rock mass structure grade, surface level of structure plane SCR and the condition factor J\ +\%\% C of a structural plane are used to compare the ground, respectively. The quantitative value of GSI was calculated. On this basis, the calculation formula for estimating disturbance parameter D from the basic quality index of rock mass, Bq, is established, and the improved method is added to the Hoek-Brown criterion on the basis of field investigation and laboratory rock mechanics test. The mechanical strength parameters of fractured rock mass in Daguanbao landslide slide zone are evaluated. Compared with the E.Hoek 's suggested method, the improved method is smaller than that obtained by previous studies, and is closer to the suggested value in previous studies. It is proved that the method is reasonable.
【作者單位】： 成都理工大學地質災害防治與地質環(huán)境保護國家重點實驗室;
【基金】：四川省青年科技創(chuàng)新研究團隊專項計劃項目(2017TD0018) 國家自然科學基金資助項目(41572291) 成都理工大學地質災害防治與地質環(huán)境保護國家重點實驗室團隊項目(SKLGP2016Z001)~~
【分類號】：P642.22;TU45

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1 殷躍平;王猛;李濱;馮振;;汶川地震大光包滑坡動力響應特征研究[J];巖石力學與工程學報;2012年10期

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