公路采空区碎裂岩体注浆试验研究

The Test Research of Cracked Rock Grouting for Highway Mined-out Area

采用砂卵石模拟采空区碎裂岩层,通过改变采空区碎裂岩体的性质、注浆压力、浆液浓度等,研究水泥浆液在采空区碎裂岩体中的扩散规律,获取特定压力、浓度条件下浆液通过不同碎裂岩体的扩散效果,为确定扩散距离、注浆材料的配比和浓度、注浆控制压力、注浆填充率及结石体强度提供依据,以期为生产实践提供指导和帮助。

By changing cracked rock characteristics in mined-out area,grouting pressure and slurry concentration etc., the paper discussed diffusion law of cement grout to cracked rock in mined-out area for reference.