摘要
预测岩质高边坡开挖后岩体变形模量的变化及松弛带厚度 ,是分析岩质高边坡在开挖后变形 (位移 )和作好防护设计的重要资料 ,运用波动力学关于平均应力与体积模量、岩体纵波速度与弹性模量、变形模量间的关系 ,通过部分实测资料及边坡应力场有限元分析的资料 ,分别建立了纵波速度与岩体变形模、岩体应力间的关系 ,研究了开挖边坡岩体变形模量的变化 ,预测了岩体松弛带的厚度。
It is very important data to analysis the deformation(displacement) and design protection that forecast the change of rock mass deformation modulus and relaxing band thickness after the rock slope high excavated. The dynamics of wave studies relation betweenaverage stress and bulk modulus, the longitudinal wave speed of rock mass and elastic modulus, deformation modulus. By these results, the paper gains the relation the relation between the longitudinal wave speed of rock mass and rock mass deformation modulus, the stress of rock mass, studies the change of deformation modulus afterrock slope excavated, predicts the thickness of rock mass relaxing band though field data and finite element analysis.
出处
《地球科学进展》
CAS
CSCD
2004年第3期472-477,共6页
Advances in Earth Science
基金
国家自然科学基金项目"泥质岩的初始饱和状态及工程地质意义"(编号 :40 3 72 12 7)
"岩体原位模量及空间特征研究"(编号 :40 0 72 0 90 )资助
关键词
变形模量
岩质高边坡
岩体应力
纵波速度
岩质边坡松弛带厚度
Deformation modulus
Rock high slope
The stress of rock mass
Longitudinal wave speed
The relaxing band thickness of rock slope.
