柔模墙下条形基础加固技术在沿空留巷复用工程中的应用

Reinforcement technology of strip foundation under soft model wall applied to reused engineering of gateway retained along goaf

为了进一步推广在沿顶掘进留底煤条件下的柔模混凝土沿空留巷技术,以霍尔辛赫煤业3501综放工作面回风巷沿空留巷复用为工程背景进行研究,提出了柔模墙下条形基础加固底板技术,构成的“顶板-柔模混凝土墙-条形基础”三位一体支撑系统能够协同承载,有效控制了围岩变形量,留巷效果良好。

In order to further promote the gateway retained along the goaf with the soft model concrete under the condition of the floor seam kept from the heading along the seam roof,a study was conducted on the reused gateway retained along the goaf in an air return gateway of No.3501 fully mechanized coal caving face in Huoerxinhe Coal Industry as an engineering background.A reinforced floor technology of the strip foundation under the soft model wall was provided.The trinity support system of"roof-soft model concrete wall-strip foundation"could make a colla borative loading and could effectively control the deformation of the surrounding rock with a good gateway retained effect.