1.
Application of Wireline Core Drilling in Coalfield Ultra Deep Boreholes
绳索取心钻进技术在煤田勘探超深孔施工中的应用
2.
Construction technology of excavated and cast-in-place piles with a large diameter and an extra depth in karst geology
岩溶地质大孔径超深桩挖孔施工技术
3.
LARGE DIMETER AND OVERDEPTH STAKE BASE OF DONE MAN DIG HOLE COMSTRUCTION STUDY IN COMPLICATED LOCAL
复杂地层超深大孔径人工挖孔桩施工的探讨
4.
Construction Technology for the Ultra-large and Ultra-deep Cast-in-place Bored Pile Testing Pile of Jiashao Bridge
嘉绍大桥超大超深钻孔灌注桩试验桩施工技术
5.
RESEARCH ON MODELING TEST SIMULATOR FOR OIL FIELD SUPER-DEEP WELL PERFORATOR
油田超深井射孔器材测试模拟器的模型研究
6.
Research on the Deep Micro Holes Machining by EDM with USM in Inverted Layout
倒置式电火花超声复合加工深微孔的研究
7.
Technique for Construction of Large Diameter Over-long Drilled Piles in Complex Geology in Deep Water
深水复杂地质大直径超长钻孔桩施工技术
8.
Research and application of deep hole advance pre-blasting in hard roof of steeply dipping seam mining
大倾角坚硬顶板深孔超前预爆破研究与应用
9.
Key Construction Technique for Super-long and Large-diameter Bored Pile
深水超长大直径钻孔灌注桩施工关键技术研究
10.
Construction of 90 m Super Deep Bored Pile and Post-Grouting of Bottom Pile
90m超深钻孔灌注桩及其桩端后注浆的施工
11.
APPLICATION OF MIDDLE-LENGTHENED HOLE ROM-AND-PILLAR MINING WITH ADVANCED OVERCUT IN GENTLE DIP MID-THICK OREBODY
中深孔超前切顶房柱法在缓倾斜中厚矿体中的应用
12.
APPLICATION OF DUPLEX REINFORCED CONCRETE BORING CAST-IN-PLACE PILE ON LARGE-SCALE DEEP EXCAVATION SUPPORT
双排钢筋混凝土钻孔灌注桩在大面积超深基坑支护中的应用
13.
Application of SDDC in wet-sinkable yellow soil area's project
孔内深层超强夯法在湿陷性黄土地区工程中的应用
14.
Since the inception of this project in1998, three pre-pilot holes have been completed and the main hole has reached a depth of over3500 m.
从98年开始，已经完成3个预先导孔的钻探工作，主孔钻进深度已经超过3500米。
15.
Drilling 50 yards deep,
钻孔至50码深处，
16.
Mechanism of Carbonate Cementation and Secondary Dissolution Porosity Formation in Deep-Burial Sandstones near the Top Overpressured Surface in Central Part of Junggar Basin
准噶尔盆地腹部超压顶面附近深层砂岩碳酸盐胶结作用和次生溶蚀孔隙形成机理
17.
guide twist drill
有导径的深孔麻花钻
18.
long hole raising
深孔爆破法天井掘进