1.
Application of Rock Drilling Detecting Technology in Roadway Reinforcement
岩层钻孔探测技术在巷道加固中的应用
2.
Talking about the Hole-site Correcting Technology in Drilled Pile Construction on Granite Plagioclase Strata
花岗岩斜岩地层钻孔桩施工孔位纠偏技术
3.
Completed pile working method of bore hole filling pile in the rock area with under-earth mined out layer
有地下采空层的岩石地区钻孔灌注桩成桩工法
4.
Open Hole Drilling with Cemented Carbide in Songyuan Oil Shale Formation
松原油页岩地层硬质合金裸孔钻进技术
5.
Injection of Marysan with Advanced Long Borehole in Soft Rock Stratum
在松软岩层中用超前长钻孔注射马丽散
6.
Boring technology of pile foundation of bridge to penetrate multilayer of karsts
桥梁桩基穿越多层岩溶地段的钻孔技术
7.
Experimental Study and Practice of Boring Technology for Bored Cast-in-place Pile in Karst Formation of Wuhan Area
武汉地区岩溶地层钻孔灌注桩成孔技术研究与实践
8.
A needle-shaped drill for boring holes in rock or masonry.
钻头，钻石器，钻孔器用于在岩石或砖石上钻孔的针形钻
9.
Start collaring with reduced throttle to the impact mechanism and feeding, let the bit work its way slightly into the rock.
开孔时，应采用最小的冲击和推进力，使钻头平稳地进入岩层。
10.
The article has introduced when pouring hole into the karst stratum need some technological measures.
文章介绍在岩溶地层钻孔灌注桩施工时,需采取的各项技术措施。
11.
New Means Of PrOtecting H0le ln Drilling,In Broken Terrane Of Sinian System Carbonatite From Central Of Yunnan Provlnce;
滇中震旦系碳酸盐岩破碎地层的钻探护孔新技术
12.
Elementary Analysis on Engineering Practice of Large-diameter Deep Long Bored Pile in Soft and Hard Terrane
浅析大直径深长钻孔桩在软、硬质岩层的工程实践
13.
Application of High-pressure Rotary Concrete-jetting Technology in the Reinforcement of the Bearing Layer of Rock-socketed Cast-in-place Pile Bottom
高压旋喷注浆法在钻孔灌注嵌岩桩底持力层补强加固中的应用
14.
RESEARCH ON INFLUENCE OF OVERBURDEN PRIMARY KEY STRATUM MOVEMENT ON SURFACE SUBSIDENCE WITH IN-SITU DRILLING TEST
覆岩主关键层运动对地表沉陷影响的钻孔原位测试研究
15.
MECHANISM AND TREATMENT METHOD FOR POTENTIAL WATER LEAKAGE OF AQUIFER THROUGH BOREHOLES IN ORDOVICIAN LIMESTONE
奥陶系石灰岩含水层钻孔隐性漏水机制与防治方法
16.
Study on drill bit for large diameter core drilling of deep hole in hard rock
硬岩深孔大口径取芯钻进的钻头研究
17.
On application of DTH drill in drilling pile construction in karst developing areas
潜孔钻在岩溶发育地区钻孔桩施工中的应用
18.
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