1.
Development of core drill equipment for combined underwater drill rammer of rock built-in pile hole
嵌岩桩孔组合潜孔锤取心钻具的研制
2.
Study on DTH with Self-propelled Round Bit and Its Simulation Analysis;
钻头自回转型潜孔锤研究及仿真分析
3.
The Development of CJ-130 Two-way Pneumatic DTH;
CJ-130型双向气动潜孔锤的研制
4.
Neural Network Method in the Penetration Rate Prediction of Percussive Drilling
利用神经网络法预测风动潜孔锤钻速
5.
Preliminary Study on a New Energy-saving Pneumatic DTH Hammer
一种新型节能气动潜孔锤的初步研究
6.
Research of Technology Problem with Pneumatic Downhole Hammer Core Drilling
气动潜孔锤取心钻进工艺问题的研究
7.
Application of Air-percussive DTD Hammar in Drilling Grout Hole in Xiaoshan Power Station
风动潜孔锤在小山电站灌浆孔施工中的应用
8.
The Parameters Optimization of the Reverse Circulation DTH Hammer and Studies on Its Drilling Technique;
全孔反循环潜孔锤参数优化及其钻进工艺研究
9.
Study of Non-Dig Oscillate-Drilling DTH Orientation Device Applied on Hard Rock Stratum;
硬岩非开挖钻进摆动式潜孔锤定向机构的研究
10.
Researches on the Key Technologies of Hollow-Through DTH Used in Gas Drilling
气体钻井用贯通式潜孔锤关键技术研究
11.
Research on the Technology Issue of Down-the-hole Hammer Drilling with Casing for Complex Stratum
复杂地层潜孔锤跟管钻进工艺问题研究
12.
Optimization design and finite element analysis on piston of GQ89 DTH
GQ89潜孔锤活塞的优化设计及有限元分析
13.
Preliminary Study on Construction Crafts of CJ-130 Two-way Pneumatic DTH
CJ-130型双向气动潜孔锤施工工艺初步研究
14.
Numerical Simulation and Optimum Design of Piston in GQ89 DTH Hammer
GQ89型贯通式潜孔锤活塞仿真分析及优化设计
15.
A Brief Explanation of Air Actuated DTH Hammer Drilling Efficiency
空气潜孔锤钻进是提高钻进效率的有效途径
16.
Simulation and Experimental Study on Down-the-Hole Drilling Fluid Field of the Hollow DTH Hammer Reverse Circulation Coring and Sampling Technology;
贯通式潜孔锤反循环取心（取样）钻进孔底流场模拟与实验研究
17.
A Developing Conceive for Bundling Pneumatic DTH Hammer of Large-diameter Cast-in place Bored Pile
发展大直径钻孔灌注桩捆绑式气动潜孔锤的一种设想
18.
Penetration Mechanism of DTH Percussion Compact Drilling and Experimental Research on Compact Bit;
潜孔锤冲击挤密钻进机理及挤密钻头的设计与实验研究