The determination of the cover thickness of the submarine tunnel is very important,because it will be very dangerous if the cover thickness is too small,whereas the length,slope gradient and cost will be increased after a larger cover thickness is chosen.
江底隧道的覆盖层厚度十分重要。
In underwater tunnel construction,the cover thickness not only plays the decisive role in its security,but al- so is a leading factor determining the underwater tunnel s cost and length.
在水下隧道施工中,覆盖层厚度不仅对其安全性起着决定性作用,而且还是决定水下隧道造价和长度的主要因素。
In underwater tunnel construction,to confirm the reasonable cover thickness is the key in the technology.
合理的确定水下隧道覆盖层厚度是建设水下隧道关键技术之一。
The method can determine the overburden thickness based upon the electricity difference between overburden and lower datum rock, and is one of the most valid method with high-efficiency, depth and accuracy for ground electricity section imaging in hydrogeology and engineering geology.
这里简要阐述了高密度电阻率法发展过程、勘探原理、野外工作方法,并将该方法应用到水电站选址覆盖层厚度探测中,获得了测区部位的视电阻率二维成像图。
12 construction schemes are constituted according to the space temporal relationship between construction steps,the excavating method,the length of drivage cycle,the space distance among each working face and the overburden thickness of each tunnel.
根据各条隧道开挖支护施工步的空间时间关系、工作面开挖方法、掘进进尺、各掌子面空间间距和覆盖层厚度等多种因素制定12种施工方案并用FLAC3D进行相应的三维数值计算。
The principle,applicability range,advantage and disadvantage of electromagnetic,eddy current method、βbackscatter method and XRF methods for nondestructive testing coating thickness of material have been reviewed.
综述了用于覆盖层厚度无损测量的电磁性法、涡流法、β背散射法和X射线荧光法的方法原理、适用范围及优缺点,并对相关仪器、厂商及仪器的发展趋势进行了评述。
Effects of the thickness of spacing layer and capping layer on the strain distribution and wavelength emission of InAs/GaAs quantum dot
隔离层厚度和盖层厚度对InAs/GaAs量子点应变分布和发射波长的影响
Study on the Reasonable Overburden Depth for Subaqueous Rock Tunnel
岩石地层水底隧道合理覆盖层厚度研究
Application of High Density Resistivity Method to Overcast Thickness Exploration
高密度电法在覆盖层厚度探测中的应用
Metallic coatings--Measurement of coating thickness--Coulometric method by anodic dissolution
GB/T4955-1997金属覆盖层覆盖层厚度测量阳极溶解库仑法
Steel cord conveyor belts--Cover thickness measurement
GB/T5753-1994钢丝绳芯输送带覆盖层厚度的测定
Metallic coatings-Measurement of coating thickness--Profilometric method
GB/T11378-1989金属覆盖层厚度轮廓尺寸测量方法
Measurement of metallic coating thickness X-ray spectrometric methods
GB/T16921-1997金属覆盖层厚度测量X射线光谱方法
Gold-plated thickness measurement by SEM
GB/T17722-1999金覆盖层厚度的扫描电镜测量方法
Research on Reasonable Cover Thickness for Underwater Tunnel through Numerical Analysis
水下隧道合理覆盖层厚度数值模拟研究
The determination of underwater rock covering thickness using engineering analogy experience method
工程类比经验法确定水下隧道岩石覆盖层厚度
Research on the Minimum Rock Cover Thickness of Underwater Tunnel in Alternating Layers of Hard and Soft Rocks;
软硬岩交互地层水下隧道最小岩石覆盖层厚度研究
Non-conductive coatings on non-magnetic metal substrates--Measurement of coating thickness--Eddy current method
GB/T4957-1985非磁性金属基体上非导电覆盖层厚度测量涡流方法
Non-magnetic coatings on magnetic substrates--Measurement of coating thickness--Magnetic method
GB/T4956-1985磁性金属基体上非磁性覆盖层厚度测量磁性方法
Metallic and other non-organic coatings--Review of methods of measurement of thickness
GB/T6463-1986金属和其他无机覆盖层厚度测量方法评述
Test methods for thickness of metal and oxide coating by microscopical examination of cross-section
GB/T4677.6-1984金属和氧化覆盖层厚度测试方法截面金相法
Calculation and Analysis of Dynamic Strength of 350 m High Core Rockfill Dam on Deep Overburden Foundation
深厚覆盖层350m级心墙堆石坝动强度计算分析
The car was thickly coated with dust.
汽车上覆盖着一层厚灰。
The canopy walls are of double thickness.
该天盖壁是双层厚的。
