山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2015年
11期
76-77,78
,共3页
砂卵石层%金刚石钻进%泥浆护壁%力学机理
砂卵石層%金剛石鑽進%泥漿護壁%力學機理
사란석층%금강석찬진%니장호벽%역학궤리
sand and gravel%diamond drilling%slurry wall%mechanics mechanism
采用土力学原理和弹性力学的拉梅解答，分析了钻孔孔壁泥浆护壁力学机理，对比硬质合金、钢粒、金刚石钻进工艺，并在此基础上研究了孕镶金刚石钻进的工艺方法、技术参数及泥浆的相关指标参数，同时针对卵石层取芯率低的问题，采用自行焊接的岩芯管进行取芯，结果表明，取芯率达到80％以上。
採用土力學原理和彈性力學的拉梅解答，分析瞭鑽孔孔壁泥漿護壁力學機理，對比硬質閤金、鋼粒、金剛石鑽進工藝，併在此基礎上研究瞭孕鑲金剛石鑽進的工藝方法、技術參數及泥漿的相關指標參數，同時針對卵石層取芯率低的問題，採用自行銲接的巖芯管進行取芯，結果錶明，取芯率達到80％以上。
채용토역학원리화탄성역학적랍매해답，분석료찬공공벽니장호벽역학궤리，대비경질합금、강립、금강석찬진공예，병재차기출상연구료잉양금강석찬진적공예방법、기술삼수급니장적상관지표삼수，동시침대란석층취심솔저적문제，채용자행한접적암심관진행취심，결과표명，취심솔체도80％이상。
Using the principle of soil mechanics and Lame solutions of elastic mechanics,mechanics mechanism of slurry wall of borehole were analyzed. This research contrasts carbide drilling,steel grains drilling and diamond drilling. The process of diamond drilling method,technical parameters and mud performance were discussed. For the problem of poor core recovery rate,the research uses welded core barrel of its own de-sign to drill. The results indicate that core recovery rate is more than 80%.
