隧道建设
隧道建設
수도건설
TUNNEL CONSTRUCTION
2012年
5期
709-712
,共4页
竖井%反井钻井法%地下水封洞库%反井钻机%施工
豎井%反井鑽井法%地下水封洞庫%反井鑽機%施工
수정%반정찬정법%지하수봉동고%반정찬궤%시공
vertical shaft%raise-boring method%underground water-sealing cavern%raise-boring machine
地下水封洞库对地下水的保护要求严格，反井钻井法在钻导井时极易出现地下水的流失，且在扩挖时不易注浆堵水。为解决上述问题，首先通过采用水文地质探孔和地表预注浆等方法确定了反井钻井法施工方案，然后介绍了钻机选型及反井钻机作业原理，并对反井钻机的施工流程和安全保障措施进行了介绍，烟台LPG地下水封洞库工程采用反井钻井法施工后，竖井平均日成井2m左右，工期为10个月。在确保地下水位稳定的情况下安全、快速、经济地完成了竖井的施工。
地下水封洞庫對地下水的保護要求嚴格，反井鑽井法在鑽導井時極易齣現地下水的流失，且在擴挖時不易註漿堵水。為解決上述問題，首先通過採用水文地質探孔和地錶預註漿等方法確定瞭反井鑽井法施工方案，然後介紹瞭鑽機選型及反井鑽機作業原理，併對反井鑽機的施工流程和安全保障措施進行瞭介紹，煙檯LPG地下水封洞庫工程採用反井鑽井法施工後，豎井平均日成井2m左右，工期為10箇月。在確保地下水位穩定的情況下安全、快速、經濟地完成瞭豎井的施工。
지하수봉동고대지하수적보호요구엄격，반정찬정법재찬도정시겁역출현지하수적류실，차재확알시불역주장도수。위해결상술문제，수선통과채용수문지질탐공화지표예주장등방법학정료반정찬정법시공방안，연후개소료찬궤선형급반정찬궤작업원리，병대반정찬궤적시공류정화안전보장조시진행료개소，연태LPG지하수봉동고공정채용반정찬정법시공후，수정평균일성정2m좌우，공기위10개월。재학보지하수위은정적정황하안전、쾌속、경제지완성료수정적시공。
There is strict requirement on the ground water level in the construction of water-sealing underground LPG storage caverns. There is great possibility that water loss may occur during shaft sinking by raise-boring method. Further- more, it is difficult to perform grouting to stop the water inflow during shaft enlarging. The raise-boring method is deter- mined to be used in the construction of Yantai water-sealing underground LPG storage caverns on basis of hydro-geolog- ical borehole drilling and ground surface pre-grouting. The type selection, working principle, working procedure and safety guarantee measures of raise boring machines are presented. In the end, the daily average shaft sinking speed rea- ches 2 m, the stability of the groundwater level is guaranteed, and safe, rapid and cost-effective shaft sinking is real- ized .
