CAJ | 학술논문

FAST台址巨石混合体的开挖稳定性对工程的建设和安全运营具有重要的意义。本文选取典型剖面,对FAST台址巨石混合体边坡在开挖后可能发生的坡体内部深层滑动和表层块体失稳两种破坏模式进行研究。结果表明：巨石混合体边坡沿最危险滑动面滑动的稳定系数约为2.8,不会发生坡体内部滑动。开挖后坡体上部较陡部位的表层块体由于失去支撑而发生失稳,再带动后方的块体运动。块体运动过程中重新堆积、咬合,体现出一定的自稳性。研究结果可为FAST台址巨石混合体及类似地质体的稳定性评价提供参考。
FAST태지거석혼합체적개알은정성대공정적건설화안전운영구유중요적의의。본문선취전형부면,대FAST태지거석혼합체변파재개알후가능발생적파체내부심층활동화표층괴체실은량충파배모식진행연구。결과표명：거석혼합체변파연최위험활동면활동적은정계수약위2.8,불회발생파체내부활동。개알후파체상부교두부위적표층괴체유우실거지탱이발생실은,재대동후방적괴체운동。괴체운동과정중중신퇴적、교합,체현출일정적자은성。연구결과가위FAST태지거석혼합체급유사지질체적은정성평개제공삼고。
The excavation stability of large rock mixture slope in FAST location is important to the project. This paper studies the possible two damage models that are deep layer sliding in the slope and the rock block failure in the surface layer, by choosing typical section. The results show that the stability factor of the most dangerous slip surface is about 2.8. So the large rock mixture slope will not slide inside. The rock block in the surface layer of the upper part of the slope is easier to destabilizing because losing the sustainment. The subsequent rock blocks move subsequently. The rock blocks accumulate again in the movement, which show that the large rock mixture has the ability of self- stabilization. The conclusions can be presented as the reference to estimation of stability to large rock mixture in FAST location and similar geologic body.