探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2013年
9期
76-79
,共4页
肖冬顺%张辉%常宝%梁亚龙%吴忠
肖鼕順%張輝%常寶%樑亞龍%吳忠
초동순%장휘%상보%량아룡%오충
深水%湍急河流%水上勘探钻探平台%护孔套管
深水%湍急河流%水上勘探鑽探平檯%護孔套管
심수%단급하류%수상감탐찬탐평태%호공투관
deepwater%rushing river%drilling platform of on-water exploration%protecting hole casing
结合芜湖长江公路二桥水上勘探工程实例,对深水湍急河流段的水上勘探施工工艺和施工安全管理进行了总结,同时主要针对施工过程中出现的钻探平台准确抛锚定位、固定,护孔套管的固定,护孔套管弯曲、变形、断裂,水位涨、落,护孔套管的伸缩等4大技术难点问题,利用现场现有条件,在保证工期和充分降低成本的情况下,采取了行之有效的技术处理措施,大大降低了钻探成本,顺利完成了钻探施工任务,获得了良好的经济效益和社会效益。
結閤蕪湖長江公路二橋水上勘探工程實例,對深水湍急河流段的水上勘探施工工藝和施工安全管理進行瞭總結,同時主要針對施工過程中齣現的鑽探平檯準確拋錨定位、固定,護孔套管的固定,護孔套管彎麯、變形、斷裂,水位漲、落,護孔套管的伸縮等4大技術難點問題,利用現場現有條件,在保證工期和充分降低成本的情況下,採取瞭行之有效的技術處理措施,大大降低瞭鑽探成本,順利完成瞭鑽探施工任務,穫得瞭良好的經濟效益和社會效益。
결합무호장강공로이교수상감탐공정실례,대심수단급하류단적수상감탐시공공예화시공안전관리진행료총결,동시주요침대시공과정중출현적찬탐평태준학포묘정위、고정,호공투관적고정,호공투관만곡、변형、단렬,수위창、락,호공투관적신축등4대기술난점문제,이용현장현유조건,재보증공기화충분강저성본적정황하,채취료행지유효적기술처리조시,대대강저료찬탐성본,순리완성료찬탐시공임무,획득료량호적경제효익화사회효익。
Combining with the on-water exploration engineering example of Wuhu Yangtze river highway bridge,the paper summarizes the construction technology and construction safety management in deep and rushing river section.With the ex-isting conditions, effective technical measures were adopted mainly according to the accurate anchoring and positioning of drilling platform;protecting casing fixation;bending, deformation and fracture of protecting hole casing;fluctuation of the water level and casing expansion, the drilling cost was greatly reduced and the good economic benefit and social benefit were obtained.