重庆建筑
重慶建築
중경건축
CHONGQING ARCHITECTURE
2014年
7期
33-34
,共2页
刘青%沈慕%谢金晶%支文超
劉青%瀋慕%謝金晶%支文超
류청%침모%사금정%지문초
电子雷管%浅埋隧道%减振%爆破振动%微振爆破%不耦合装药
電子雷管%淺埋隧道%減振%爆破振動%微振爆破%不耦閤裝藥
전자뢰관%천매수도%감진%폭파진동%미진폭파%불우합장약
electronic detonator%shallow-buried tunnel%vibration reduction%blasting vibration%micro-vibration blasting%uncoupling powder filling
重庆市轨道交通一号线区间及车站工程沿线的管线密集,地表高大建筑物多,最小围岩厚度仅4.0m左右,属超浅埋隧道,对振速控制要求极高,按常规微振钻爆法施工,无法满足地面建(构)筑物的安全要求,严重影响工程进度,甚至造成社会不稳定因素。采用电子雷管,使用数码智能精确控制爆破技术,与常规微振钻爆法相比降振可达70%,大大提高了建(构)筑物的安全性,加快了施工进度,化解了社会矛盾,取得了显著的社会效益和经济效益。
重慶市軌道交通一號線區間及車站工程沿線的管線密集,地錶高大建築物多,最小圍巖厚度僅4.0m左右,屬超淺埋隧道,對振速控製要求極高,按常規微振鑽爆法施工,無法滿足地麵建(構)築物的安全要求,嚴重影響工程進度,甚至造成社會不穩定因素。採用電子雷管,使用數碼智能精確控製爆破技術,與常規微振鑽爆法相比降振可達70%,大大提高瞭建(構)築物的安全性,加快瞭施工進度,化解瞭社會矛盾,取得瞭顯著的社會效益和經濟效益。
중경시궤도교통일호선구간급차참공정연선적관선밀집,지표고대건축물다,최소위암후도부4.0m좌우,속초천매수도,대진속공제요구겁고,안상규미진찬폭법시공,무법만족지면건(구)축물적안전요구,엄중영향공정진도,심지조성사회불은정인소。채용전자뢰관,사용수마지능정학공제폭파기술,여상규미진찬폭법상비강진가체70%,대대제고료건(구)축물적안전성,가쾌료시공진도,화해료사회모순,취득료현저적사회효익화경제효익。
There are numerous pipelines and tall buildings along the line one and at these stations of rail transit in Chongqing with the minimum thick-ness of surrounding rock only about 4.0m, which suggests it is a shallow-buried tunnel, calling for high vibration velocity control requirements. The con-ventional micro-vibration blasting method cannot meet building security requirement, slow down construction process and even trigger social instability. Electronic detonator and smart intelligence are adopted to precisely control blasting technology with vibration reduction of 70%compared with conven-tional blasting method, thus building security can be greatly raised and construction process is sped up and obvious social and economic benefits.