对采空区设计及施工若干问题的探讨

On design of goaf and some problems in construction

结合近年来采空区施工经验,根据相关技术规范,就采空区设计与施工的一些常见问题进行论述,包括粉煤灰标准、配合比设计、孔间距、注浆压力及现场检测等,有着积极的指导意义。

Combining with the construction experience at goaf in recent years, the paper indicates some common problems in the design and con- struction of the goaf according to relative technical regulation, including the fly ash standard, the mix proportion design, distance between holes, the grouting pressure and field test, so as to have positive direction significance.