锦屏基础煌斑岩室内化学灌浆试验研究与探讨

 从灌浆材料、灌浆设备和灌浆工艺3个方面，对锦屏一级水电站左岸基础煌斑岩化学灌浆进行室内模拟试验研究与探讨。简单介绍了室内化学灌浆模拟实验步骤。通过灌浆前、后偏光显微镜分析可以看出：CW高性能化学灌浆材料对煌斑岩具有良好的渗透性、浸润性，能均匀、连续分布于岩样的微细裂隙间。灌后取芯检测结果表明：CW高性能化学灌浆材料能很大程度地改变岩样的力学性能。由于现场地质条件和地质结构复杂，需进一步研究施工工法，在化学灌浆方面必须灵活调整浆液配方，综合平衡灌浆压力、进浆速率、灌注时间、灌浆总量等要素。

Design of Seismic Mitigation and Isolation of Large Aqueduct

Since the weight of the aqueduct together with its inside water is very heavy,the dynamic response of the structure is intensive under the seism action.The structural safety couldn't be guaranteed according to the traditional antiseismic design method,therefore,to make use of the seism isolator is a feasible measure to ensure the safety of the aqueduct-bridge,and to prolong the period and adjust the damp of the aqueduct-bridge is an effective approach to control the vibration of the aqueduct.Due to no desig...