“压力注浆+锚杆”在煤矿采空区建筑物地基加固中的应用

Application of"Pressure Grouting+Bolt" in Strengthen Foundations of Buildings

地下采煤形成采空区,随着时间推移,造成地面塌陷,在其上所建建筑物随着地基沉陷,墙体出现开裂变形等损伤。文章所介绍的是运用"压力注浆+锚杆"加固技术在煤矿采空区建筑物地基加固中的应用案例,重点对运用"压力注浆+锚杆"加固技术的原理、设计要点、施工工艺等进行了介绍,它是注浆技术的新应用。

As time passed, underground mining formed gob,and made ground sank. The building was also sank on the ground and walls began to deformation. This article introduced how to use＂ pressure grouting ＋ bolt＂ strengthening technology in coal mine building foun- dation reinforcement case, focusing on the use of ＂pressure grouting ＋ bolt＂ reinforced principle, design features, construction and crafts were introduced, it is a new application of grouting technology.