论文部分内容阅读
西南某水电站左岸抗力体发育f5断层对坝基的变形稳定、基础应力传递等极为不利,严重影响大坝稳定性及安全运行,需采用相应的工程方法对其进行加固处理。在对f5断层的工程地质特征进行仔细分析的基础上,选取化学复合灌浆对f5断层进行试验研究。从化学浆材的选择、灌浆施工工艺等方面进行了简要介绍。通过岩体透水率、钻孔声波和孔内变形模量等资料的对比分析对灌浆效果进行了检测评价,表明化学复合灌浆对f5断层的透水性改善明显,岩体声波和孔内变形模量等值有较大提高。
The development of f5 fault on the left bank of a certain Southwest Hydropower Station is extremely unfavorable to the deformation and stability of the foundation and the transfer of basic stress, which seriously affects the stability and safe operation of the dam. The corresponding engineering methods should be adopted to reinforce the dam. Based on the careful analysis of the engineering geological features of the fault f5, the chemical composite grouting was selected to test the f5 fault. From the chemical pulp selection, filling construction technology and other aspects of a brief introduction. Through the comparison and analysis of the data of permeability of rock mass, acoustic wave in borehole and deformation modulus in the hole, the grouting effect is evaluated and evaluated, which shows that the chemical composite grouting can obviously improve the water permeability of f5 fault. The acoustic wave and deformation modulus The equivalent has been greatly improved.