Study on rational support technology of mine weakly consolidated watery roadway

in order to solve the mine roadway suppor oifiut problem caused by the poor consolidated surounding rock and igh roof water content in Dananhu Xiwu Mine,a ste measuring and numercal sinulation combined method was applied tothesite bolting reinfrcement peromances 'est and to analze the surounding ock deformation law and suppor sressed features with the roof stra a water content increased when three support modes ofthe square suppor.oit support and bolt and anchor combined suppot were applied. The studyresuts showed that underthe co dtin ofthesite surcunding roc.k.the boft and anchor could reach the sipulated puling force. When the oo water con1ent was high.due to the spuare suport applied,thedeformatin of the surounding rock was serious and the square supports had hestructure staililt lost occured.,but the baoit and anchor combined support coul ef cively reduce the axal force decreased under the funtion of water and coud highly reduce the deformation of the surounding rock. Theste obseration results showed that the control efect of the surounding rock was obvious when the boft andanchor combined support applied.