CAJ | 학술논문

边坡滚石是在基本建设中常遇到的一种工程灾害。其防护结构的设计依据主要是边坡滚石的运动轨迹,因而要对这种灾害进行防治,首先要确定滚石的运动轨迹。根据落石运动全过程的三个阶段,即滚动（滑动）运动阶段、抛物运动阶段和与坡面碰撞阶段,利用分段循环算法分别得到了三个运动阶段的运动速度计算公式。以某岩质边坡构建相似模型,将该理论公式应用于落石运动轨迹预测,验证了公式的可行性和有效性。与现有方法相比,分段循环算法具有计算原理简单明确、易于使用等优点。该方法可用于斜坡区滚石运动特征的预测,并可作为斜坡区滚石灾害防治的依据。
변파곤석시재기본건설중상우도적일충공정재해。기방호결구적설계의거주요시변파곤석적운동궤적,인이요대저충재해진행방치,수선요학정곤석적운동궤적。근거낙석운동전과정적삼개계단,즉곤동（활동）운동계단、포물운동계단화여파면팽당계단,이용분단순배산법분별득도료삼개운동계단적운동속도계산공식。이모암질변파구건상사모형,장해이론공식응용우낙석운동궤적예측,험증료공식적가행성화유효성。여현유방법상비,분단순배산법구유계산원리간단명학、역우사용등우점。해방법가용우사파구곤석운동특정적예측,병가작위사파구곤석재해방치적의거。
Rockfall is a frequent engineering disaster confronted in the capital construction engineering.The design of preventive structure is based on the evaluation of the rockfall trajectory.So it is very important to properly calculate the rockfall trajectory.According to the 3 phases in the process of rockfall movement,containing the jumping phase,the rolling（sliding） phase and collision phase,the formulae to calculate the velocity of different phases of motion are proposed respectively by segmented loop algorithm.A similar model,based on a rock slope in Chongqing-Wanzhou highway,is established to verify the capability and validity of the presented algorithm.Compared with existing algorithm,the new algorithm is simple and clear,easy to use and so on.The algorithm meets the law of the movement of rockfall and can be used to forecast the kinetic feature of rockfall.It is also used as the basis for rockfall disaster prevention.