现代隧道技术
現代隧道技術
현대수도기술
Modern Tunnelling Technology
2015年
4期
74-79,85
,共7页
姚占虎%闵凡路%张英明%邵海龙
姚佔虎%閔凡路%張英明%邵海龍
요점호%민범로%장영명%소해룡
泥水盾构%饱和法开舱%泥浆%泥膜
泥水盾構%飽和法開艙%泥漿%泥膜
니수순구%포화법개창%니장%니막
Slurry shield%Saturation intervention%Slurry%Filter cake
饱和法开舱技术作为一种新型的带压开舱技术,具有工作效率高、安全性好等优势。由于舱内有效工作时间长达3~4 h,如何形成闭气性良好的泥膜,是饱和法开舱作业成功的关键。文章以南京纬三路过江通道工程饱和法开舱作业为背景,开展了现场泥浆配制、成膜及泥膜闭气模拟试验,明确了泥膜制作各阶段泥浆性能指标,并总结出了相关定量判断标准。饱和法开舱技术首次应用于南京纬三路过江通道工程中,是对开舱技术的创新和探索,可为今后类似工程提供经验借鉴。
飽和法開艙技術作為一種新型的帶壓開艙技術,具有工作效率高、安全性好等優勢。由于艙內有效工作時間長達3~4 h,如何形成閉氣性良好的泥膜,是飽和法開艙作業成功的關鍵。文章以南京緯三路過江通道工程飽和法開艙作業為揹景,開展瞭現場泥漿配製、成膜及泥膜閉氣模擬試驗,明確瞭泥膜製作各階段泥漿性能指標,併總結齣瞭相關定量判斷標準。飽和法開艙技術首次應用于南京緯三路過江通道工程中,是對開艙技術的創新和探索,可為今後類似工程提供經驗藉鑒。
포화법개창기술작위일충신형적대압개창기술,구유공작효솔고、안전성호등우세。유우창내유효공작시간장체3~4 h,여하형성폐기성량호적니막,시포화법개창작업성공적관건。문장이남경위삼로과강통도공정포화법개창작업위배경,개전료현장니장배제、성막급니막폐기모의시험,명학료니막제작각계단니장성능지표,병총결출료상관정량판단표준。포화법개창기술수차응용우남경위삼로과강통도공정중,시대개창기술적창신화탐색,가위금후유사공정제공경험차감。
As a new type of intervention technology for hyperbaric conditions, the saturation intervention method has the advantages of high efficiency and security; the key to success of this method is the formation of a good, airtight filter cake. Based on the Nanjing Weisan Road river-crossing project, and considering that effective working time inside the chamber is about 3 to 4 hours, on-site tests were carried out regarding slurry preparation, formation of the filter cake and air tightness, and a slurry performance index was determined for each stage of filter cake formation. Relevant quantitative judgment standards are summarized in this paper.