| 1. | Property of treat foundation soil with vacuum - heaped load precompression 真空堆载联合预压处理地基土性质分析
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| 2. | Test and study on reinforcement of soft clay foundation with vacuum - heaped load combined precompression 真空堆载联合预压加固软基机理的试验研究
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| 3. | This dissertation introduces the necessity , mechanism and developing of the vacuum - heaped load combining precompression in the consolidation of the soft highway foundation 本文阐述了用真空堆载联合预压法加固软土路基的必要性、机理和发展现状。
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| 4. | With resonable calculating model and dynamic analysis method , the construction control elevation can be decided and so the precompression difficulty of support can be solved in the construction of large - span arched bridge 采用精确的计算模型和动态分析技术,一次性给出施工控制标高,解决了大跨度拱桥有支架施工中支架需要预压的问题。
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| 5. | The dynamic tensile stresses of earthquake may balance or exceed to the precompression stresses due to static watef , this may arouse opening of joints along the normal direction . if the altemate actions of earthquake join , the joints may behave gradual opening and closing 由于地震作用时的动拉应力将抵消并超过静载作用下的压应力,导致横缝面沿法向张开,加上地震的交变作用,横缝可能会呈现反复的“渐开渐合”现象。
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| 6. | This paper emphasize study the seepage of vacuum - heaped load combining precompression . , deduce the drainage quantity computation formula for stage loading in soft soil . an example show that the results of calculation are in good agreement with the measured value , this explain that the formula is rational 本文重点对真空堆载联合预压法的渗流进行了研究,得出了在分级加荷下软土地基渗流量的计算公式,算例表明其计算值与实测值较吻合,说明所建模型是比较合理的。
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| 7. | Based on the terszige and biot theory , initially analyze the economical of this experiment , directly save investment 22 % after compute . after that , computing the settlement of highway foundation , comparing the computing and survey value , the predict formula of vacuum - heaped load combining precompression for designing , this formula show that the distortion law of consolidation progress . at the same time , based on the position and room experiment , analyzes the intension transformation in soft soil and criteria of stabilization control 在太沙基和比奥固结理论的基础上,先分析了此次试验的经济性,经核算直接节约投资22 ,经济效益十分明显;随后对真空堆载联合预压法加固软土路基的沉降量进行了估算,并与实测值作对比分析,得出了真空堆载联合预压下的沉降量估算公式,能反映“真空”加固过程的变化规律;同时根据现场和室内试验,分析了软土强度的变化,以及给出并验证了工后沉降控制标准。
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