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Engineering methods of predicting the settlements of buildings falling with the zone of influence of pits opened for entities with an underground section and erected within downtown Moscow are presented on the basis of field experiments.
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For demonstration purposes, the results obtained for an underground section of the Koralm railway are introduced.
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| | This paper presents “ Φ 1485 blast resistance shock wave tube”, which won the first prize for Science and Te chnology Progress from the State. This tube is a house test facility used to simulate the shock wave in the air. Gunpow der is used as the energy source in the driving section. The inside diameter at the front of the conical tube is 348mm. That of the test section and exit sectio n at the rear of the conical tube is 1485mm. Inside overpressure of the test s e ction can reach 0.05~1.20... | | 获得国家科学技术进步一等奖的“1485抗爆激波管”是用来模拟爆炸冲击波的室内试验设备,其驱动段是以燃烧火药为能源,锥管前面管体内径是348mm,锥管后面试验段及其出口段内径为1485mm。试验段内部超压可达0.05~1.20MPa。地上试验段参试物安装在管内。地下试验段是内径2.50m、高3.00m的箱体,内部可进行地下结构模型试验。驱动段膜片夹紧力是由8个油缸及其二级连杆增力机构来完成。有长江三峡大坝动力响应试验、地下隧道试验、地形对冲击波影响试验及人防工事试验等已做过的部分典型试验。 | | 文摘来源 | | This paper takes the representative point of underground section as the research object and sets up mathematic model of confined water turbulent flow in single karst fissure. It uses the Lagrange Method to solve the mathematic model under different boundary conditions, and gets the analytical solution. On the basis of verifying data got by the experimental information, the correctness of the mathematic model and the rationality of the analytical solution are proved. The foundation is established... | | 以断面代表点为研究对象,建立了描述单个岩溶裂隙承压水紊流运动的数学模型;利用Lagrange法求解了不同定解条件下的数学模型,得到了相应的解析解;根据室内模拟实验资料验证了解析解,说明了所建模型的正确性及解析解的合理性,为复杂条件下溶岩裂隙水运动规律的研究奠定了基础。 | | 文摘来源 | | The paper introduces the structure design of elevated section including design principles of bridge pier column and pile cap, structure calculation and layout as well as the structural design of underground section including scheme selection of retaining system and interior structure, structure calculation and layout. In addition, the structural connection of underground and elevated section, and the retaining structure connection of underground running tunnel and unde... | | 介绍天津地铁一号线高架区间桥下部结构的设计,包括桥墩立柱及承台的设计原则、结构计算;地下区间的结构设计,包括围护结构及内部结构的方案选择、计算原则、构造布置和结构计算;地下区间敞开段与高架区间的结构衔接、地下区间与地下车站的围护衔接。 | | 文摘来源 | |   | | << 更多相关文摘 |
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