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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
crassifolia) in rehabilitated fields benefit greatly from the restoration project.
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The implementation of the CCFG project is important for the increase in RENI and the multiple functions of plant roots.
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Based on the methods of landscape ecology and ecological planning, this paper develops a zoning project of ecosystem functions suitable for various environments.
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Quantitative site classification in the key county in the conversion of farmland to forests project
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We concluded that the conversion project from croplands to forests and grasslands based on scientific principles is very important in the formation of carbon sinks for reducing greenhouse effects.
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| | In this paper, the testing results on the mechanical properties of three clay and one silty clay samples of earth dam construction material by bending tests of earth beams and axial tension tests are presented. A preliminary stress analysis is also made on the dam embankment of a certain project using finite element method. The results of computation indicate, that the central cores of earth and rockfill dams may, under unfavorable conditions, e. g., when the shell materials are poorly placed or whe... | | 本文介绍了采用土梁弯曲及轴向拉伸的方法,对三种筑坝粘土及一种筑坝壤土进行 抗拉性能试验的结果,并对某工程坝体用有限单元法进行了初步的应力分析。计算结 果表明,土石坝心墙在某些条件下,例如坝壳填筑质量低劣或坝肩基础处理不妥,便可 在坝顶或坝肩产生拉应力和拉应变:当这些数值超过心墙土料的抗拉极限时,就会产生 纵向或横向裂缝。上述研究工作,初步定量说明了土石坝产生张拉裂缝的原因, | | 文摘来源 | | The grouting testsconducted in the karstic rock formation at Wujiangdu Hydroelectric Project and their main results are described. These results have been adopted in the desigh and construction of the diaphragm in the dam foundation. | | 本文论述乌江渡水电站在岩溶发育地层中所进行的灌浆试验及其主要成果。这些成果已用于大坝防渗灌浆帷幕的设计和施工中。 在简述了坝址的地质特点和灌浆试验的目的和要求后,着重论述了岩溶发育地层的高压灌浆工艺和灌浆帷幕的防渗能力,并对溶洞泥的灌浆机理和灌浆帷幕的长期稳定性作了初步探讨。 | | 文摘来源 | | This paper describes briefly the Practice of rock anchorage in a number of water reservoirs and hydroelectric projects in China, and discusses some problems relating to the application of this technique. These problems are stability analysis of anchored rock masses, methods of applying the prestress and controlling of these stresses, protective measures against the corrosion of the steel wires, the losses of prestresses with time etc. The increasing uses of rock anchorage in the construction of water ... | | 本文在简要介绍我国若干水库和水电站应用预应力岩锚的经验之后,讨论了应用岩锚技术中的若干问题,如被锚固岩体的稳定分析,锚索的张拉及应力控制,防止钢索腐蚀的措施及预应力随时间的损失等。最后展望可能应用岩锚的工程领域,并预期在水利水电建设中将得到越来越多的应用。 | | 文摘来源 | |   | | << 更多相关文摘 |
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