摘要
针对裂隙密度较大的岩体,利用等效连续介质理论,建立了裂隙岩体在雾化雨入渗下的饱和-非饱和渗流数学模型。根据雾化雨模型试验,选定雾化雨的强度。结合自然降雨,对裂隙岩体岸坡进行了雾化雨入渗的数值分析。分析结果显示,相对与薄雾区和自然降雨区,暴雨区的孔隙水压力升高较快,易形成对边坡稳定不利的暂态饱和区。因此,暴雨区的坡面防护和坡内排水应给予重视。
Aimed at densely fractured rock masses, the paper sets up the saturated-unsaturated seepage flow mathematic model for atomized rain infiltration using equivalent continuum theory. Atomized rain strengths are selected according to the model experiment. Combined with natural rainfall, numerical analysis on atomized rain infdtration in fractured rock slope is conduced. The results show that pore water pressure increases quickly and transient saturated zone which is disadvantagous to the slope stability is easily formed in great storm zone, relative to thin frog zone and natural rainfall zone. So slope surface protection and inside bailing within great storm zone should be emphasised.
出处
《四川大学学报（工程科学版）》
EI
CAS
CSCD
北大核心
2006年第2期15-18,共4页
Journal of Sichuan University (Engineering Science Edition)
关键词
渗流
雾化雨
裂隙岩体
暂态饱和区
seepage flow
atomized rain
fractured rock masses
transient saturated zone
