滚石坡面冲击回弹规律研究

 在山区滚石灾害防护工程中，滚石拦截系统恰当位置的选择及其拦截高度的确定非常关键，它直接关系到拦截系统的成败。而影响拦截系统设计的因素很多，其中滚石在坡面上的运动轨迹是关键。以弹塑性接触理论为基础，研究滚石法向回弹系数、切向回弹系数的计算方法，运用运动学的基本方程研究滚石在坡面上的运动特征，推导相关的公式。通过具体算例的分析，显示了理论的合理性。

STUDY OF ROCK-FALL MOTION ON SLOPE

In the design of rock-fall protection project，the proper location and reasonable intercepting height of the intercepting system are most important factors，which directly are concerned with success or failure of the system. There are many factors which can influence the system，but among them the stone motion track on slope plays a key role. Based on the elasto plastic contact theories，the calculation models of restitution coefficient both in normal and tangential impacting directions are studied. Then the fundamental kinematical equation is applied to studying the stone motion characteristics，and the related formulas are deduced. At last，by calculating and analyzing a specific example，the theory is proven to be reasonable.