sand cushion meaning in Chinese
砂垫层
沙垫层
Examples
- Construction technology of pack - drain , sand cushion and geogrid method for soft ground improvement
砂垫层和土工格栅加固软土地基施工技术 - This reinforced earth is made up of single layer or several layers of reinforcements horizontally placed in the soil or sand cushion under the foundation . a great number of model tests and practical engineering show it has the advantages of improving settlement and bearing capacity of foundation
加筋地基的设计内容包括承载力、变形和稳定性计算，故加筋地基的范畴和目的包括增加地基承载力、减小沉降和不均匀沉降，以及提高抗滑稳定性等。 - In this paper , the seismic reduction function of sand cushion under masonry structure foundation and some possible factors that may have effect on its seismic reduction function are tentatively discussed through theoretical computation and shaking table experiments . it provides some foundation for sand cushion ' s application in civil engineering
本文通过理论分析计算和室内砂箱振动台地震模拟试验，对砌体结构基础下砂垫层的隔震性能及可能影响其减震性能的因素作了一些初步的探讨，为今后砂垫层减震作用在工程上的应用提供了依据。 - This paper introduces the limit - destruction theory to study and analyze the function - mechanism of sand cushion in the collective function of the piles and the earth , and then brings forward the regulating - equation of the stress ratio between the up - pile - soil and the top of pile concerning the sand cushion . its final calculating result basically tallies with the practical function conditions . this provides an alternative approach to the study of sand cushion
4在复合地基桩、土共同作用中，垫层的作用和机理，本文引入极限破坏理论对砂垫层作用机理进行分析研究，提出砂垫层的桩顶桩土应力比协调方程，其计算结果与实际作用情况较吻合，为砂垫层研究提供了一种思路。 - A certain thickness of sand cushion of a certain size or gradation is paved between the foundation and ground in this new method . when earthquake happens the sand cushion will have plastic shearing strain , reducing the input of high frequency volume , thus consume the earthquake energy form substrate . it is showed in shaking table experiments that there is relevant slippage between foundation and sand cushion , which can prevent the seismic energy from being passed to the above structure and thus reduced the seismic role for the above structure
在建筑物的基础与地基之间铺设一定厚度、某种单一粒径或级配砂垫层，在地震作用时砂垫层发生的塑性剪切变形，减少地震波高频分量的输入，从而消耗了下层传来的地震能量；振动台试验表明，当振动发生时，基础与砂垫层之间有明显的滑移产生，这就对地震能量向上部结构的传递起到了隔断作用，因而对上部结构起到了减震作用。