| 砾石颗粒干比重及饱和面干比重的估算方法--应用于最大干密度校正 |
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| 引用本文： | 吴国永.砾石颗粒干比重及饱和面干比重的估算方法--应用于最大干密度校正[J].水电自动化与大坝监测,2000,24(5):48-50. |
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| 作者姓名： | 吴国永 |
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| 作者单位： | 广东省水利水电科学研究所,广州,510610 |
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| 摘 要： | 砾石颗粒的饱和面干比重(Gs3)、干比重(Gs2)与其本身矿物成分、孔隙比、孔隙特征有着密切关系.文章提出了以砾石颗粒的饱和面干含水量及相应的粒径小于5 mm土粒的比重估算其Gs3,Gs2的方法,旨在简化土的最大干密度的校正工作.以该估算方法估算的Gs3或Gs2,校正土的最大干密度,所产生的误差之绝对值小于0.01 g/cm3,对实际工程的影响是无关紧要的.
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| 关 键 词： | 砾石颗粒 最大限制粒径 饱和面干含水量 饱和面干比重 干比重 视比重 最大干密度 |
ESTIMATION METHOD OF SATURATED SURFACE DRY SPECIFIC GRAVITY AND DRY SPECIFIC GRAVITY OF GRAVAL GRAIN FOR RECTIFYING MAXIMUM DRY DENSITY |
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| Wu Guoyong.ESTIMATION METHOD OF SATURATED SURFACE DRY SPECIFIC GRAVITY AND DRY SPECIFIC GRAVITY OF GRAVAL GRAIN FOR RECTIFYING MAXIMUM DRY DENSITY[J].HYDROPOWER AUTOMATION AND DAM MONITORING,2000,24(5):48-50. |
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| Authors: | Wu Guoyong |
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| Abstract: | There is a close relation between saturated surface dry specific gravity(Gs 3),dry specific gravity(s 2) of graval grain and its mineral composition, and void ratio, and void feature. method is proposed to estimate Gs 3 or Gs 2 by use of saturated surface dry water content and corresponding specific gravity of particles whose diameter is smaller than 5 mm. The purpose is to simplify rectification of maximum dry density. The error of rectification by the present method is smaller than 0 01 g/cm 3, which is not important for practical projects. |
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| Keywords: | graval grain maximum limited particle diameter saturated surface dry water content saturated surface dry specific gravity dry specific gravity apparent specific gravity maximum dry density optimum water content |
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