Strength Assessment of Broken Rock Postgrouting Reinforcement Based on Initial Broken Rock Quality and Grouting Quality
作者: Hongfa XuHansheng GengFeng ChenXiao ChenLiangliang QiFrancesco Pesavento
作者单位: 1State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing, Jiangsu 210007, China
2Nanjing Army Command College, Nanjing, Jiangsu 210045, China
刊名: Mathematical Problems in Engineering, 2017, Vol.2017
来源数据库: Hindawi Journal
DOI: 10.1155/2017/3651765
原始语种摘要: To estimate postgrouting rock mass strength growth is important for engineering design. In this paper, using self-developed indoor pressure-grouting devices, 19 groups of test cubic blocks were made of the different water cement ratio grouting into the broken rock of three kinds of particle sizes. The shear strength parameters of each group under different conditions were tested. Then this paper presents a quantitative calculation method for predicting the strength growth of grouted broken rock. Relational equations were developed to investigate the relationship between the growth rates of uniaxial compressive strength (UCS), absolute value of uniaxial tensile strength (AUTS), internal friction angle, and cohesion for post- to pregrouting broken rock based on Mohr-Coulomb strength...
全文获取路径: Hindawi 

  • grouting 水泥灌浆
  • growth 生长
  • broken 破碎的
  • uniaxial 单轴的
  • strength 强度
  • paper 
  • concretion 结核
  • cement 胶结物
  • increment 增量
  • internal 内部的