Lian Chuanjie, Xu Weiya, Sang Hongxing, Li Guochen. BOLT SUPPORT TEST IN ROADWAY NEAR GOB WITH BROKEN ROOFJ. CHINA MINING MAGAZINE, 2006, 15(6): 50-51,64.
Citation:
Lian Chuanjie, Xu Weiya, Sang Hongxing, Li Guochen. BOLT SUPPORT TEST IN ROADWAY NEAR GOB WITH BROKEN ROOFJ. CHINA MINING MAGAZINE, 2006, 15(6): 50-51,64.
Lian Chuanjie, Xu Weiya, Sang Hongxing, Li Guochen. BOLT SUPPORT TEST IN ROADWAY NEAR GOB WITH BROKEN ROOFJ. CHINA MINING MAGAZINE, 2006, 15(6): 50-51,64.
Citation:
Lian Chuanjie, Xu Weiya, Sang Hongxing, Li Guochen. BOLT SUPPORT TEST IN ROADWAY NEAR GOB WITH BROKEN ROOFJ. CHINA MINING MAGAZINE, 2006, 15(6): 50-51,64.
BOLT SUPPORT TEST IN ROADWAY NEAR GOB WITH BROKEN ROOF
The 102 seam is 2.0m under the gob of 9 seam in Caozhuang coal mine. The roof support for the roadway of 102 seam is not bolt but the steel beam sets because the roof strata of 102 seam are much broken due to 9 seam mined out. In order to speed the advance rate and lower the support cost, roof truss-bolt system test has been made in 10804 haulage roadway and achieved gratifying success.
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