geologic strata meaning in English
地质层
Examples
- This so - called enhanced oil recovery process takes advantage of the fact that pressurized co2 is chemically and physically suited to displacing hard - to - get oil left behind in the pores of the geologic strata after the first stages of production
这所谓的激励采油法，利用的原理是高压二氧化碳的化性与物性，适于取代第一期采油之后残存于地层孔隙内而不易取得的石油。 - This research apply the method of high accuracy sequences stratigraphy , and establish high accuracy geologic stratum trellis of shahejie formation s34 of shen 84 - an 12 , identified 3 indicate layers . study on sedimentary microfacies is base of reservoir heterogeneity research
本次研究应用高精度层序地层方法，建立了沈84 ?安12块沙河街组s _ 3 ~ 4段的高精度地层格架，识别了2个标志层。 - Note 7 - remarks as to the origin may take the form of a boring number and sample number in conjunction with a job number , a geologic stratum , a petrologic horizon or a location description with respect to a permanent monument , a grid system or a station number and offset with respect to a stated centerline and a depth or elevation
注7 -对于原状样的记号可以采用下面的形式,一个钻孔编号和一个样品编号联合一个工作编号,一个地质地层,一个岩石层位或者一个考虑为永久界标的原地描述,一个栅格系统或者一个测站编号和考虑到规定的中心线和深度或海拔的偏移量 - The building guantou especially the big bridge engineering geology condition is more complicated , by drill to explore the data to announce to public the rock soil body of types , the engineering geology function and the geologic strata circumstance , this time soil kind and the rock samples that investigates to still pass to adopt in great quantities to carry on indoor experiment , get a great deal of data , in order to get the useful rock soil parameter , this thesis still introduces to beg the process of take the rock soil parameter in the way of the mathematics covariance
馆头特大桥工程地质条件较为复杂，通过钻探资料揭示了岩土体的成因类型、工程地质性能以及地层情况，此次勘察还通过大量采取的土样和岩石样本来进行室内试验，得到了大量的数据，为得到有用的岩土参数，本论文还介绍了通过数理统计的方法求取岩土参数的过程。 - 2 . the concept design is the key phase of the first stage of system optimization . the paper emphatically discusses with emphasis several issues difficulty to answer , such as the determination of the soil parameters , the soil pressure and the safety factor and the reliability of retaining structure , summaries and analyses the main geotechnical problems during the excavation on the four familiar geologic strata of saturation soft soil on the class i terrace of the yangtze river , aged - clay , expansive soil and loess and investigates carefully the patterns of deformation and destruction of pit slope in the saturation soft soil , puts forward three basic principles of selecting schemes of retaining structure , namely : facing to the problem , facing to the characteristics of excavation and environment
( 2 )概念设计是深基坑工程第一步优化? ?系统(方案)优化设计中的关键，文中重点讨论了概念设计中的几个难点问题，如土性参数的确定、土压力的选取、深基坑工程的安全度和可靠度分析等；总结分析了饱和软土、老粘性、膨胀土和黄土这四类常见地层条件下的深基坑工程中的主要岩土工程问题，其中重点研究了长江级阶地上的饱和软土深基坑边坡变形和破坏模式，提出了选择支护方案的基本原则，即：面向问题、面向基坑特点、面向周边环境特点。