斜坡道明槽转暗硐快速施工
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摘要
某矿斜坡道含水流砂层明槽段,采用基桩帷幕防水、小型挖掘机分层分区一次挖掘、分段浇筑钢筋混凝土永久支护等施工工艺;明槽转暗硐段,采用小型挖掘机全断面一次挖掘、铲运机出矸、超前管棚+29U型钢棚+钢筋混凝土联合支护、短段掘支等施工工艺,实现了安全快速施工,取得了较好的技术经济效果。
The foundation piles curtain waterproof,one time excavation with delaminating and districting by mini-excavator,permanent support with segmentation by pouring reinforced concrete and other construction techniques were adopted at open channel section of the slope ramp in the aquiferous quicksand layer in a mine.The full face excavationat by mini-excavator,discharging gangue by carry-scraper,combined support by advanced pipe shed+ 29 Usteel shed+reinforced concrete,short section excavation and support,and other construction techniques were adopted at the junction section of open channel and blind tunnel.The safe and rapid construction was realized,and good technical and economic results were achieved.
The foundation piles curtain waterproof,one time excavation with delaminating and districting by mini-excavator,permanent support with segmentation by pouring reinforced concrete and other construction techniques were adopted at open channel section of the slope ramp in the aquiferous quicksand layer in a mine.The full face excavationat by mini-excavator,discharging gangue by carry-scraper,combined support by advanced pipe shed+ 29 Usteel shed+reinforced concrete,short section excavation and support,and other construction techniques were adopted at the junction section of open channel and blind tunnel.The safe and rapid construction was realized,and good technical and economic results were achieved.
引文
[1]赵爱贞,王飞.高压旋喷桩止水帷幕技术在竖井穿过含水厚流沙层的应用[J].中国矿业工程,2014(6):26-29.
[2]GB 50653-2001,有色金属矿山井巷工程施工规范[S].
[3]GB 50213-2010,煤炭井巷工程质量验收规范[S].
[4]赵爱贞,王飞,刘竞琦.斜坡道软岩段快速施工技术[J].中国高新技术企业,2014(4):38-40.
[5]陈弦,李忠森,姚开元,等.多管自吸泵降水技术在深厚富水砂层斜井明槽开挖中的应用[J].建井技术,2018,39(4):49-51.
[2]GB 50653-2001,有色金属矿山井巷工程施工规范[S].
[3]GB 50213-2010,煤炭井巷工程质量验收规范[S].
[4]赵爱贞,王飞,刘竞琦.斜坡道软岩段快速施工技术[J].中国高新技术企业,2014(4):38-40.
[5]陈弦,李忠森,姚开元,等.多管自吸泵降水技术在深厚富水砂层斜井明槽开挖中的应用[J].建井技术,2018,39(4):49-51.