登茂通矿沿空留巷加强支护技术研究

Study on strengthening support technology of gob-side entry retaining in Dengmaotong Mine

在进行高水材料充填沿空留巷时,沿空巷道在复杂的应力状态下,仍可能产生较大的变形,这对沿空留巷十分不利,因此需要采取合适的方式对沿空巷道进行加强支护。本文以登茂通矿沿空留巷具体情况为例,分析了沿空留巷加强支护的方式,主要包括充填区域上方顶板维护、留巷段加强支护和充填体加强支护,可以为高水材料沿空留巷提供一定的技术指导。

When filling gob-side entry retaining with high water material,the gob-side entry retaining may still produce large deformation under the complex stress state,which is very unfavorable to gob-side entry retaining.Therefore,it is necessary to adopt appropriate methods to strengthen the support of gob-side entry retaining.Taking the specific situation of gob-side entry retaining in Dengmaotong Mine as an example,this paper analyzes the ways to strengthen the support of gob-side entry retaining,mainly including the roof maintenance above the filling area,the strengthening support of the entry retaining section and the strengthening support of the filling body,which can provide some technical guidance for the gob-side entry retaining of high water materials.