1.
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
2.
The Optimal Design About the Trajectory of Non dig Guided Boring
非开挖导向钻进钻孔轨迹的优化设计
3.
Design and Improvement of Back Reamer in Directional Drilling Non-excavation Pipe Laying Construction
导向钻进非开挖铺管施工扩回钻头的设计改进
4.
The Research of 3D-Visualization of Guided Boring Trajectory;
非开挖导向钻进轨迹三维可视化研究
5.
Classification of Build-up Intensity in Trenchless Technology for Pipe Laying
导向钻进非开挖铺管的导向强度研究
6.
Non- excavating horizontal directional drilling technique is a kind of newly developed construction technique.
非开挖水平定向钻进技术是一项高新施工技术。
7.
The Study and Realization of the Trenchless Guide Drilling Trace-designing Software;
导向钻进非开挖轨迹设计软件的研究与实现
8.
Research on the Optimum Design of 3D Pilot-hole Trace in HDD;
非开挖导向钻进轨迹三维优化设计研究
9.
Construction Technology and Project Application Studying of No-dig Horizontal Directional Drilling Pipe Paving;
非开挖水平定向钻进铺管施工技术及工程应用研究
10.
The Theoretic Research and Computer Application of Technology of Trenchless Guiding Drilling Laying Pipeline;
非开挖导向钻进铺管技术的理论研究与计算机应用
11.
Study on Directional/Guided Drilling of Trenchless in Fluvial Facies Stratum;
典型河相地层条件下非开挖定（导）向钻进施工技术研究
12.
Research of Horizontal Directional Drilling Trace Optimization and Software Design in No-dig Engineering;
非开挖水平定向钻进轨迹最优化研究及软件设计
13.
Research and Application of a Trenchelss Construction Technics for Rock Directional Drilling
岩层中定向钻进非开挖铺设地下管线的研究及应用
14.
Application of Guided Boring and Trenchless Technology in Urban Electric Network Engineering Construction
导向钻进与非开挖铺管技术在城市电网建设工程中的应用
15.
On the trenchless construction technology of horizontal directional drilling in sewerage projects
排水工程水平定向钻非开挖施工技术
16.
The Researching of Slurry s Effect in the HDD (Horizontal Directory Drilling);
非开挖水平定向钻孔中的泥浆作用机理研究
17.
Design and implementation of HDD rig condition Data Detector
非开挖铺管钻机工况参数检测仪的设计与实现
18.
Design of Main Structures for Trenchless Oriented Drilling Machine
非开挖导向钻机中几种主要结构的设计