本文選題：大光包滑坡 + 碎裂巖體��； 參考：《巖土工程學(xué)報(bào)》2017年09期

【摘要】：安縣大光包滑坡是汶川地震觸發(fā)的最大規(guī)�；�,滑坡南側(cè)暴露長(zhǎng)約1.8 km順層滑帶,其巖體高度碎裂化,引起廣泛關(guān)注。為準(zhǔn)確評(píng)價(jià)滑帶碎裂巖體的強(qiáng)度參數(shù),筆者在前人研究的基礎(chǔ)上開(kāi)展了細(xì)致的野外調(diào)查工作,采用法國(guó)Phicometre巖土兩用原位鉆孔剪切試驗(yàn)儀對(duì)大光包滑坡滑帶碎裂巖體進(jìn)行了原位剪切試驗(yàn)。將試驗(yàn)結(jié)果與Hoek Brown巖體強(qiáng)度準(zhǔn)則估值和基于工程地質(zhì)類比法的力學(xué)參數(shù)建議值進(jìn)行了對(duì)比分析�；谝陨涎芯�,提出了大光包滑坡南側(cè)順層滑帶碎裂巖體力學(xué)參數(shù)建議值:內(nèi)聚力為245~480 k Pa,內(nèi)摩擦角為25.0°~26.5°。
[Abstract]:The Daguangbao landslide in Anxian is the largest landslide triggered by Wenchuan earthquake. The south side of the landslide exposed about 1.8 km along the bedding slip zone, and its rock mass is highly fragmented, which has aroused widespread concern. In order to accurately evaluate the strength parameters of the fractured rock mass in the slip zone, the author carried out a detailed field investigation on the basis of previous studies. The in-situ shear test of the fractured rock mass in the slip zone of Daguangbao landslide was carried out by using the French Phicometre in situ borehole shear test instrument. The experimental results are compared with the Hoek Brown rock mass strength criterion and the suggested mechanical parameters based on the engineering geological analogy method. Based on the above research, the suggested values of mechanical parameters of fractured rock mass along the bedding slip zone south of Daguangbao landslide are put forward: cohesive force is 245 ~ 480kPa, internal friction angle is 25.0 擄~ 26.5 擄.
【作者單位】： 地質(zhì)災(zāi)害防治與地質(zhì)環(huán)境保護(hù)國(guó)家重點(diǎn)實(shí)驗(yàn)室(成都理工大學(xué));中國(guó)地質(zhì)調(diào)查局成都地質(zhì)調(diào)查中心;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41572291,41302287) 四川省青年科技創(chuàng)新研究團(tuán)隊(duì)專項(xiàng)計(jì)劃項(xiàng)目(2017TD0018) 地質(zhì)災(zāi)害防治與地質(zhì)環(huán)境保護(hù)國(guó)家重點(diǎn)實(shí)驗(yàn)室團(tuán)隊(duì)項(xiàng)目(SKLGP2016Z001) 中國(guó)地質(zhì)調(diào)查局項(xiàng)目(DD20160274)
【分類號(hào)】：P642.22;TU45

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