CAJ | 학술논문

运用离散元数值模拟方法，对具有大块石堆积特征的巨石混合体边坡的失稳模式进行了研究。结果表明，巨石混合体边坡中块石表面摩擦系数的降低会导致边坡的运动变形，变形模式以块石的平移为主，个别块石发生转动；块石在变形过程中重新镶嵌、咬合，具有自稳性；巨石混合体边坡主要的失稳范围为坡体的前缘和中部，竖直方向上坡体中上部的变形量较大，坡体下部变形量较小；前部块体的变形会导致后部块体失去支撑而发生变形，属牵引式的失稳模式。
운용리산원수치모의방법，대구유대괴석퇴적특정적거석혼합체변파적실은모식진행료연구。결과표명，거석혼합체변파중괴석표면마찰계수적강저회도치변파적운동변형，변형모식이괴석적평이위주，개별괴석발생전동；괴석재변형과정중중신양감、교합，구유자은성；거석혼합체변파주요적실은범위위파체적전연화중부，수직방향상파체중상부적변형량교대，파체하부변형량교소；전부괴체적변형회도치후부괴체실거지탱이발생변형，속견인식적실은모식。
The destabilization mode of the huge rock mixture slope was invest igat ed using the discrete element numerical meth-od. The results showed that( 1) the huge rock mixture slope would deform w hen the friction coefficient of the rock surface re-duces. T he destabilization mode is mainly t he translat ion slip of rock blocks w ith rotation of a few rock blocks;( 2) the rock blocks accumulate and occlude during the movement, and show s the ability of self-stabilization;( 3) the main dest abilization range of the huge block mixture slope is the f ront and the middle parts of the slope. In vertical direction, the upper and middle parts of slope have higher deformation than the lower part;and( 4) the movement of f ront rock block can cause the deformation of back rock block due to losing of support , w hich is the ret rogressive destabilization mode.