摘要
随着探矿领域不断扩展,滨海探矿项目越来越多。在滨海水上钻探中,由于受海浪、涨落潮、暗流、大风等不稳定因素影响,存在钻具横向、竖向定位控制困难等问题。采用"浮船+钢管桩+伸缩器套管"工法能较好地解决这2个难题。结合工程实践,介绍了套管伸缩器及定位钢管桩在滨海绳索取心钻探中的组合应用。
In coastal prospecting drilling,the positioning control is difficult in both horizontal and vertical orientation because of the waves,tide,currents,winds and other factors of instability,which can be solved by pontoon platform ＋ steel pipe pile ＋ sleeve expansion joint method. The paper introduces the compound application of sleeve expansion joint and positioning steel pipe pile in coastal wire-line core drilling by the engineering practice.
出处
《探矿工程（岩土钻掘工程）》
2014年第6期49-52,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
套管伸缩器
定位钢管桩
浮船平台
滨海钻探
绳索取心钻进
sleeve expansion joint
positioning steel pipe pile
pontoon platform
coastal drilling
wire-line core drilling
