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
8期
18-21
,共4页
天然气水合物%钻探%桩效应%取样高度
天然氣水閤物%鑽探%樁效應%取樣高度
천연기수합물%찬탐%장효응%취양고도
gas hydrate%drilling%pile effect%sampling height
建立了天然气水合物钻探取样过程中“桩效应”的数学模型，通过解析分析，提出了取样高度的隐式解。分析了取样筒内径和样品与取样筒之间摩擦系数对取样高度的影响。参数分析表明，岩层的内摩擦角和粘聚力对取样高度也有很大的影响。取样深度对取样率的影响较小。
建立瞭天然氣水閤物鑽探取樣過程中“樁效應”的數學模型，通過解析分析，提齣瞭取樣高度的隱式解。分析瞭取樣筒內徑和樣品與取樣筒之間摩抆繫數對取樣高度的影響。參數分析錶明，巖層的內摩抆角和粘聚力對取樣高度也有很大的影響。取樣深度對取樣率的影響較小。
건립료천연기수합물찬탐취양과정중“장효응”적수학모형，통과해석분석，제출료취양고도적은식해。분석료취양통내경화양품여취양통지간마찰계수대취양고도적영향。삼수분석표명，암층적내마찰각화점취력대취양고도야유흔대적영향。취양심도대취양솔적영향교소。
The mathematical model of“pile effect” was built in the process of gas hydrate sampling coring and the implicit analytical solution for the sample height is presented by analytical analysis.The influences of the sampling tube diameter and the friction coefficient between the sample and the sampling tube were analyzed.Parametric analysis shows that the in-herent friction angle and cohesion of the target layer have great influence on the sample height.The sampling depth in the target layer has unapparent influence on the sampling rate.
