基于综合权重—模糊物元法的岩溶地区隧道围岩质量评价
张卫中,袁威,康钦容,夏缘帝,李梦玲

Quality Evaluation of Tunnel Surrounding Rock in Karst Area Based on Comprehensive Weight-Fuzzy Matter-element Method
Weizhong ZHANG,Wei YUAN,Qinrong KANG,Yuandi XIA,Mengling LI
表1 围岩分级评价指标分类标准
Table 1 Classification standard of surrounding rock classification evaluation index
一级指标二级指标指标编号稳定性等级
围岩岩体结构特征结构类型X1

整体结构

(0.9~1.0)

整体块状

(0.7~0.9)

层状

(0.5~0.7)

破碎状

(0.3~0.5)

散体状

(~0.3)

岩体RQD/%X290~10075~9050~7525~50<25

岩体单轴抗压强度

/MPa

X3200~300100~20050~10025~500~15
岩体完整性系数X40.75~1.000.55~0.750.30~0.550.15~0.300.00~0.15
节理间距/mX50.8~2.00.3~0.80.2~0.30.1~0.20.00~0.1
围岩地质特征地下水/(L·min-1X6<2525~5050~100100~125125~200
软弱夹层性质X7

无夹层

(0.9~1.0)

软岩、岩块

(0.7~0.9)

岩屑

(0.5~0.7)

岩屑夹泥

(0.3~0.5)

泥夹岩屑、泥质

(~0.3)

岩层倾角/(°)X8<1010~1525~4545~6060~90
KBQX9>550550~451450~351350~211≤210