套管伸缩器及定位钢管桩在滨海浮船平台绳索取心钻进中的应用  

Application of Sleeve Expansion Joint and Positioning Steel Pipe Pile in Wire-line Core Drilling at Coastal Pontoon Platform

作　　者：尚月成 陈为民 郝峰 王明辉 

机构地区：[1]山东省第四地质矿产勘查院,山东潍坊261021

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

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.

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 

分 类 号：P634[天文地球—地质矿产勘探]