注浆法处理荣乌高速公路下伏采空区的关键技术

Key Technology of Grouting Method for Treatment of Mined-out Area under Rongcheng-Wuhai Highway

通过荣乌高速公路采空区的注浆治理工程,论述了注浆法成孔、帷幕孔注浆施工、注浆孔注浆施工的关键技术,根据施工现场地形地貌及地质情况,对采空区注浆法处治提出一些改进措施,同时指出应遵循采空区注浆质量检测方法、要求及采空区公路路基的变形控制标准,以确保工程质量。

Through the project of grouting for treatment of mined-out area under Rongcheng-Wuhai Highway, the key technologies, including bored by grouting, curtain holes and grouting holes grouting, are proposed; and some improving measures thereof are also put forward according to the field terrain and geological conditions. The engineering quality should be ensured by following the inspection method and requirement on the grouting quality as well as the criterion for control of subgrade deformation of highway in the mined-out area.