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化学灌浆(Chemi cal Grout i ng)是将一定的化学材料(无机或有机材料)配制成真溶液,用化学灌浆泵等压送设备将其灌入地层或缝隙内,使其渗透、扩散、胶凝或固化,以增加地层强度、降低地层渗透性、防止地层变形和进行混凝土建筑物裂缝修补的一项加固基础,防水堵漏和混凝土缺陷补强技术。结合劈裂灌浆技术及其在各地的施工、试验情况,以及滕口水库坝基的具体特点,对大坝坝基部分钻孔进行了化学灌浆,取得了良好效果。
Chemical grouting (Chemi cal Grout i ng) is a certain chemical materials (inorganic or organic materials) formulated as a true solution, using chemical grouting pump and other pressure-feeding equipment into the formation or gap, so that it infiltration, diffusion, plastic Condensation or solidification, in order to increase the formation strength, reduce formation permeability, prevent formation deformation and repair of concrete structures crack reinforcement foundation, waterproof plugging and concrete defect reinforcement technology. Combined with the split grouting technology and its construction and test conditions in various places, and the specific characteristics of the dam foundation of Tengkou Reservoir, the partial grouting of the dam foundation was carried out and good results were obtained.