Research On The Soft Rock Roadway Support Manner Of JinBaoTun Mine

The control of soft rock roadway stability, especially the control of soft rock coal roadway under the high stress is always one of the difficult problem. With the mine scale enhance and the mine toward deep level, the problem of the timbering and the maintenance of soft rock roadway is becoming more aculeated. It is the key of the mine toward deep leve and the safety mine Whether can we solve the problem of soft rock roadway timbering. In theory and in practice, soft rock timbering is compound form on the whole, which sometimes cost large or can't reach expect purpose. It is no doubt worth studying that how to make good use of bolt-net-tightwire compound timbering in soft roke roadway, in that this compound timbering is advanced and economical. Therefore the paper discussed support theory and method of soft rock roadway. At the same time the bolt-net-spout-plank tightwire mechanism of soft rock roadway is studyed based on theory of broken-rock circle . With JinBaoTun mine for example the compound form is discussed and a series of conclusion and advice is brought forward .