摘要
对叶巴滩水电站左岸拱肩槽进行了无盖重固结灌浆试验,通过检查孔压水测试、声波测试及钻孔变形模量测试,分析了水泥基快硬型裂隙封闭材料和环氧类裂隙封闭材料封闭后的固结灌浆效果,研究结果表明,裂隙封闭材料及工艺可以达到较好的封闭效果,可有效提高无盖重固结灌浆压力,表层岩体的灌后性能参数相对深层岩体而言,各参数值或提升值都相对更好,无盖重固结灌浆相对于有盖重条件未出现显著不足。
The on-site consolidation grouting test without cover weight is conducted on the left bank arch shoulder slot of Yebatan Hydropower Station.The consolidation grouting effects of epoxy-based crack sealing materials and cement-based fast-hardening crack sealing materials are analyzed by inspection hole water pressure test,acoustic wave test and borehole deformation modulus test,respectively.The test results show that the crack sealing materials and techniques can achieve a better sealing effect and effectively increase the pressure of heavy consolidation grouting without a cover.The post-grouting performance parameters of the surface rock mass are relatively better than those of the deep rock mass,and the values of each parameter or the value of improvement are relatively better.The uncovered heavy consolidation grouting does not show any significant deficiencies compared with the covered heavy consolidation grouting.
作者
肖承京
王新锋
梁慧
赵恒
文俊林
XIAO Chengjing;WANG Xinfeng;LIANG Hui;ZHAO Heng;WEN Junlin(Changjiang Scientific Research Institute,Wuhan 430010,Hubei,China;Ministry of Water Resources Water Engineering Safety and Disease Control Engineering Technology Research Center,Wuhan 430010,Hubei,China;Sinohydro Bureau 7 Chengdu Hydroelectricity Construction Engineering Co.,Ltd.,Chengdu 611730,Sichuan,China;Yebatan Branch of Huadian Jinsha River Upstream Hydropower Development Co.,Ltd.,Ganzi 627153,Sichuan,China)
出处
《水力发电》
2026年第2期108-113,共6页
Water Power
基金
中国水利水电第七工程局有限公司科技项目(2022-803-54-30)
中国中铁股份有限公司科技研究开发计划项目(2023-重大-16)
中国华电集团公司科技项目(CHDKJ22-02-125)。
关键词
无盖重固结灌浆
裂隙封闭材料
压水试验
声波测试
uncovered heavy consolidation grouting
fissure sealing material
water pressure test
acoustic wave test
