Drilling technology of the large drill hole in complex strata
复杂地层中大口径钻孔的施工方法
Application of Composite Pile with Caliber Bore-hole for Geological Disaster Treatment Engineering
小口径钻孔组合桩技术在地质灾害治理工程中的应用
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
Application Design of Small-diameter Steel Pipe Bearing Pile Construction Platform In the Construction of Bored Pile
小口径钢管支撑桩施工平台在钻孔灌注桩施工中的应用
Application of Wireless-while-drilling Technology on Large Diameter Directional Hole
无线随钻技术在大口径定向工程钻孔中的应用
high efficiency drilling system for small and deep hole
高效小直径深孔钻削系统
Analysis and treatment on pile bore checking collapse accidents of large diameter bored perfusion pile
大口径钻孔扩底灌注桩在孔形检测时的塌孔分析及处理
Study on Construction Platform Structure Design of Water Surface Large Diameter Bored Pile;
水上大口径钻孔灌注桩施工平台设计研究
Discussion on the Diameter of Main Section in Medium-shallow Hole in Diamond Core Drilling for Geological Exploration
地质勘探金刚石岩心钻探中浅孔主体口径探讨
Study on In-situ Rock Strength Measurement with Contact Detection Method in Small Borehole and Application;
小孔径钻孔触探法围岩强度测试原理研究及应用
Adaptive noise cancelling in small drilling hole detection
自适应串扰噪声消除技术在小孔径钻孔超声波检测中的应用
guide twist drill
有导径的深孔麻花钻
Technology of Big Caliber Boring Pouring Pile;
大口径钻孔灌注桩施工——土建类专业建筑施工新技术
The Research of Producing and Test of Jointing Intensity of Small Caliber PDC Bit;
小口径PDC钻头制造与焊接强度检测研究
THE COMPARISON BETWEEN SMALL-HOLE ROPE CORING AND COMMON CORING
小口径绳索取芯法与普通钻进取芯法比较
Application of Bit Water Way in HDD
水平定向钻进扩孔钻头水口应用分析
Processing Technical Study for Steam DrumTemperature-Measuring Seat Small Bore Deep Blind-Hole
汽包测温座小口径深盲孔的加工工艺研究
"Use a hole punch, not a torch nor a drill, and punch a hole in the enclosure for the size conduit being used."
采用打孔机,不要使用焊枪或电钻,在外壳上打出符合导管直径大小的孔。
Design and Application of large Diameter Bit in Rock and Soil Drilling
岩土钻探工程大口径钻头设计与应用