四川公路堆积层边坡特征与加固方案统计关系初探

Statistical Relation between Characteristics and Reinforcement Schemes for Slopes Covered by Deposits of Highways in Sichuan Province

根据四川区域环境特征,在对收集到的68处省内公路堆积层边坡处治实例汇总的基础上,将影响公路堆积层边坡稳定的特征因素归结为堆积层厚度、边坡高度、坡率、岩性及其组合、地下水条件、平均年降水量及地震作用七项指标,进而分别以各项特征因素为参变量,研究其与挡墙、抗滑桩和锚杆三类典型加固方案之间的统计关系,所得结论可为山区公路堆积层边坡病害治理提供类比设计的技术资料及相关参考.

According to the regional environmental characteristics in Sichuan province and based on the da- m collected from 68 slopes covered by deposits of highway in Sichuan province, the study lists the following 7 indicators interrelated with the stabilities of slopes covered by deposits：thickness of deposits;height of slope;gradient of slope; litholog）, and its combination; groundwater condition; average annual precipitation; earthquake effects. Then, the characteristic factors from each indicator category are taken as parameters, and the statistical relations between three typical reinforcement schemes（retaining wall; anti-sliding pile; rock- bolt） and the above mentioned characteristic factors are thoroughly discussed. The obtained results could provide technical data and reference to the hazard treatment for slopes covered by deposits of mountainous highways.