1.
Some technical measures to increase flow of water in the borehole are analyzed in the light of hydrogeology.
同时,从水文地质学角度剖析了提高钻孔涌水量所能采取的技术措施。
2.
Drilling Technology for Water Inrush Borehole in Pulang Copper Mining Area of Shangrila
香格里拉县普朗铜矿区涌水钻孔钻进工艺
3.
Analysis on Influencing Factors of Gas Emission with Boreholes to Determine Drainage Radius
钻孔瓦斯涌出量确定排放半径影响因素分析
4.
Analysis and Investigation of Experiment Result Differences betweenShaft Water Inflow and Shaft Pilot Hole Pumping Test Result during Borehole
建井期间井筒涌水量与井检孔抽水试验成果差异性的分析探讨
5.
Research on Construction Method and Quality Control of Underwater Bored Pile;
水下钻孔灌注桩施工工艺与质量控制的研究
6.
Quality problem of underwater concreting of cast-in-place bored piles and preventive treatment thereof;
现场钻孔桩浇筑水下混凝土的质量问题及防治
7.
Study on the construction quality control of cast-in-place bored piles in Tianshui area
天水地区钻孔灌注桩的施工质量控制研究
8.
Drilling elastic modulus test on gneiss of dam foundation for Longjiang hydropower station
龙江水电站片麻坝基钻孔弹性模量试验
9.
Auxiliary Shaft Pilot Hole Construction Technology and Shaft Inflow Estimation in Maiduoshan Coalmine
麦垛山煤矿副立井井筒检查孔施工技术及涌水量预算
10.
Application of Bit Water Way in HDD
水平定向钻进扩孔钻头水口应用分析
11.
rotary wash-boring equipment
旋转式水冲钻孔设备
12.
horizontal borehole pressure recorder
水平钻孔压力记录器
13.
borehole content analyzer
钻孔矿物含量分析仪
14.
On the quality problems in drilling
浅谈如何防治钻孔灌注桩钻孔施工时质量通病
15.
Approximate Calculation of Relationship between Discharge and Seepage Coefficient in Pressurized-water Test of Cut-off Wall
防渗墙钻孔压水流量与渗透系数关系的近似计算
16.
Research on Quality of Drilled Holes for Cast-in-Place Piles in Shanghai District;
上海地区钻孔灌注桩成孔质量的研究
17.
Analysis on Seepage and Piping of Secant Piles Exterior Protected Construction in Silt-sand Soil;
粉砂粉土地基钻孔咬合桩围护结构渗流及管涌分析
18.
Change Rule of Initial Speed of Gas Emission From Borehole in Outburst Coal Seam Before and After Pressure Relief
突出煤层卸压前后钻孔瓦斯涌出初速度的变化规律