关键词: 深厚表土层, 井壁出水, 壁间注浆, 壁后注浆

Abstract: According to the phenomenon of shaft lining water gushing in deep 266～290m summer-planting place of zhangji coal mine auxiliary shaft，the shaft lining water gushing characteristics and water gushing mechanism were analyzed. According to the situation of shaft lining water gushing、geological conditions of deep and thick overburden、on the basis of force analysis of shaft lining，the grouting scheme of in combination with grouting between borehole wall and grouting behind the wall was proposed；in order to as far as possible to reduce the disturbance to the shaft lining of grouting activities，the grouting mode of inducement grouting and Single hole small injection、group hole multi – injection was used，and the order of grouting was designed；then the grouting parameters、construction process and grouting finish standard were developed.Through engineering practice proves, the added stresses of shaft lining were released after grouting, shaft lining no seep water, the shaft lining water gushing was 0 m3/h, indicated that this grouting scheme could effectively solve the problem of the shaft lining water gushing in deep and thick overburden.