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precompression n.預先壓縮,預壓力。

preconceive

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 在太沙基和比奧固結理論的基礎上,先分析了此次試驗的經濟性,經核算直接節約投資22 ,經濟效益十分明顯;隨后對真空堆載聯合預壓法加固軟土路基的沉降量進行了估算,并與實測值作對比分析,得出了真空堆載聯合預壓下的沉降量估算公式,能反映“真空”加固過程的變化規律;同時根據現場和室內試驗,分析了軟土強度的變化,以及給出并驗證了工后沉降控制標準。

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 本文重點對真空堆載聯合預壓法的滲流進行了研究,得出了在分級加荷下軟土地基滲流量的計算公式,算例表明其計算值與實測值較吻合,說明所建模型是比較合理的。

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 由于地震作用時的動拉應力將抵消并超過靜載作用下的壓應力,導致橫縫面沿法向張開,加上地震的交變作用,橫縫可能會呈現反復的“漸開漸合”現象。

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 采用精確的計算模型和動態分析技術,一次性給出施工控制標高,解決了大跨度拱橋有支架施工中支架需要預壓的問題。

This dissertation introduces the necessity , mechanism and developing of the vacuum - heaped load combining precompression in the consolidation of the soft highway foundation 本文闡述了用真空堆載聯合預壓法加固軟土路基的必要性、機理和發展現狀。

Test and study on reinforcement of soft clay foundation with vacuum - heaped load combined precompression 真空堆載聯合預壓加固軟基機理的試驗研究

Property of treat foundation soil with vacuum - heaped load precompression 真空堆載聯合預壓處理地基土性質分析