Current situation of well Water sand content standards inside and outside China is outlined here and some differences and arguments for this issue are studied. Based on the great amount o...
在大量管井施工及运行调查的基础上，提出了我国新的供水管井井水含砂量标准。
This paper introduced to found a strength formula of the pit sand concrete depend upon the statistical principle, as well as the selected table of the sand ratio and water content.
本文作者介绍了如何利用统计学原理建立山砂砼强度公式、合理砂率选用表及用水量选用表，并说明了如何利用这几项技术指标进行配合比设计。
This paper introduced to found a strength formula of the pit sand concrete depend upon the statistical principle, as well as the selected table of the sand ratio and water content.
本文作者介绍了如何利用统计学原理建立山砂砼强度公式、合理砂率选用表及用水量选用表，并说明了如何利用这几项技术指标进行配合比设计。
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