| 流沙层置换注浆施工技术 |
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| 引用本文： | 陈金山,张世轶. 流沙层置换注浆施工技术[J]. 山西煤炭, 2012, 32(2): 71-73 |
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| 作者姓名： | 陈金山 张世轶 |
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| 作者单位： | 河南煤业(焦煤)集团中马村矿,河南焦作,454003 |
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| 摘 要： | 针对厚度11m、水压1.5 MPa、最大单孔涌水量153.9 m3/h流沙层,采用二次置换注浆,并用钢筋混凝土作为骨架加固井筒周边,使井筒周边形成结石体帷幕;探注孔涌水量超标即注脲醛树脂化学浆液,采用小段高掘砌施工方式,加强并筒支护强度,顺利通过了流沙层.
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| 关 键 词： | 流沙层 置换注浆 小段高掘进 |
Replacement Grouting Technology in Drift Sand Layer |
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| CHEN Jin-shan , ZHANG Shi-yi. Replacement Grouting Technology in Drift Sand Layer[J]. Shanxi Coal, 2012, 32(2): 71-73 |
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| Authors: | CHEN Jin-shan ZHANG Shi-yi |
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| Affiliation: | (Zhongmacun Mine,Henan Coking Coal Group,Jiaozuo,Henan 454003) |
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| Abstract: | A specific drift sand layer(11 meters deep,water pressure=1.5Mpa,and maximum single-hole water yield=153.99m3/h) used secondary replacement grouting;reinforced concrete strengthened around the shaft as skeleton;and aggregated masses shield formed.If water flow of detection hole exceeded standard,urea-formaldehyde resin chemical slurry would be grouted.Small section high driving was used to reinforce shaft support,which passed the drift sand layer successfully. |
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| Keywords: | drift sand layer replacement grouting small section high driving |
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