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- Paper has systematic summarized the characters of the Tertiary coal bearing strata of N.E.China Region,genetic types of coal,lithotype of coal,metamorphism and its rules. 系统总结了东北地区第三纪含煤地层特征、煤的成因类型、煤岩特征、变质作用及其规律。
- The authors comprehensively analyzed the geological background and the epositional characteristics of the Late Permian coal bearing strata in Laochang coalfield,eastern Yunnan. 通过对滇东老厂煤田形成的地质背景和晚二叠世含煤地层沉积特征的综合分析,剖析了典型的潮坪聚煤环境和三角洲聚煤环境及其成煤作用。
- THE COAL BEARING STRATA IN BARAPUKURIA,BANGLADESH 孟加拉国巴拉普库利亚含煤地层
- Wu X H, Yang J Z.Optimization design of predewatering water bearing stratum [J].Zhongzhou Coal, 2000(02) :4-5. [5]吴新华;阳金知.;合理优化设计超前疏放含水[J]
- Thus , the Carboniferous paralic coal - bearing stratum is a set of excellent source rock measures with much better hydrocarbon generation potential than Jurassic source rocks. 因此该区石炭系海陆交互相含煤沉积是一套较一般侏罗系为好的烃源岩系,有较好的生烃潜力。
- Keywords paleogeography;regional structure;coalbed methane;Longtan coal bearing strata; 古地理学;区域构造;煤层气;龙潭煤系;
- The Study on Coal Bearing Strata of Lower Cretaceous in Yangcaogou Basin of Jilin Province and the Accumulation Rules of Coal 吉林省羊草沟盆地下白垩统含煤地层与聚煤规律研究
- Dongfengshan gold deposit is occured in hornstone of Dongfengshan group under iron bearing stratum. 东风山金矿体赋存在含铁层之下的东风山群角岩层中。
- Ore bearing stratum contain richly pyrrhotite,pyrite,spessartine and dannemorite. 赋矿层位中富含磁黄铁矿、黄铁矿、锰铝榴石和锰铁闪石。
- Piles transfer Building loads down to a suitable Bearing stratum when the soil mass immediately Below a construction is unsuitable for the direct Bearing of footings. 若土壤松软,而不能在其上直接建地基,就必须建桩来将建筑物的重荷转移到稳定的地下层。
- Ore bearing stratum contain richly pyrrhotite,pyrite,spessartine and dannemorite.Additionly, there are smaller arsenopyrite and cobaltite. 赋矿层位中富含磁黄铁矿、黄铁矿、锰铝榴石和锰铁闪石。
- Abstract There is coalseam methane in coalbed and coal bearing sequences in the study area. 在煤层和煤系地层中，产生并赋存着煤层气。
- The genesis of Shuicaozi Cu deposit has a close relation with the coal bearing clastic rock formation of lacustrine bog facies. 水槽子铜矿的成因与湖泊沼泽相含煤碎屑岩建造紧密相关,多个呈似层状、透镜状的矿体,均赋存于该沉积序列中。
- At the same time, coal bearing series strata in upper Paleozoic distributes within all basins, so coal-genetic gas is also abound.In order to reali... 因此,为实现大港油田天然气生产的良性循环,应坚持科技创新和油气并举的原则,加快对黄骅坳陷天然气新领域的勘探步伐,加快气田(藏)的高效开发和老区的滚动挖潜。
- Problem regarding the determination of bearing stratum of pile, the treatment of foundation be-tween the tower and the podium and the treatment of liquifaction of soil are mainly demonstrated. 本文以上海银城商住楼为例，介绍高层建筑结构设计中基础方案的比较和选择以及计算分析，并着重介绍其桩基持力层的确定、高层建筑（主楼）与裙房之间基础的处理和地基液化处理的方法。
- This paper discussed the evolvement characteristics of sand bodies of the fourth coal bearing interval and its influence on No. 13-1 coal-seam thickness in Huainan coal field. 摘要讨论了淮南煤田第四含煤段砂体的演化特征及其对13-1煤层厚度的影响。
- Detailed study was done in the determination of base bearing capacity,raft stake composite stress analysis,auger ground,bearing stratum stress stretching and pile foundation construction. 对设计中的基础承载力的确定、筏桩复合受力分析、下卧软土、持力层应力扩展、桩基施工等方面进行了较为详细的研讨。
- Compared with Gymnospermae pollen, the fern spore has more closer relationship with soluble organism in the low - rank source rocks from the coal - bearing strata. 而蕨类孢子和裸子植物花粉相比,可能对低熟-未熟油,特别是含非烃较高的低熟油有某种更为密切的联系。
- Abstract The Haikou Formation of Middle Devonian in Luquan contains coal bearing sediments (predominantly clastic rocks)which are of littoral origin and yield abundant fishes, fossil plants and pelecypods. 云南禄劝中泥盆世海口组为以碎屑岩为主的滨海相含煤沉积，地层中产有丰富的鱼类、植物和双壳类化石；
- testing of bearing stratum of pile tip 桩端持力层检测
