BS 1377‐2:1990 土木工程用土壤 测试方法— 第2 部分：分类测试
Methods of test for soils for civil engineering purposes. Classification tests
目录
1 范围 ............................................................................................................................................... 1
2 定义 ............................................................................................................................................... 1
3 测定含水量 ................................................................................................................................... 1
3.1 概述 .................................................................................................................................... 1
3.2 烘箱干燥法 ........................................................................................................................ 1
3.3 测定白垩饱和含水量的方法 ............................................................................................ 4
4 测定液限 ....................................................................................................................................... 5
4.1 概述 .................................................................................................................................... 5
4.2 制样 .................................................................................................................................... 6
4.3 圆锥仪法（指定方法） .................................................................................................... 7
4.4 单点圆锥触探仪法 .......................................................................................................... 10
4.5 卡氏液限仪法 .................................................................................................................. 11
4.6 单点卡氏液限仪测试法 .................................................................................................. 15
5 塑限及塑性指数测定 ................................................................................................................. 16
5.1 概述 .................................................................................................................................. 16
5.2 制样 .................................................................................................................................. 17
5.3 塑限测试方法 .................................................................................................................. 17
5.4 塑限指数和液限指数的推导 .......................................................................................... 18
6 收缩特性的确定 ......................................................................................................................... 18
6.1 概述 .................................................................................................................................. 18
6.2 制样 .................................................................................................................................. 19
6.3 体缩率（限定法） .......................................................................................................... 19
6.4 体缩率（附属法） .......................................................................................................... 24
6.5 线性收缩 .......................................................................................................................... 27
7 密度的测定 ................................................................................................................................. 29
7.1概述 .................................................................................................................................. 29
7.2线性方法 .......................................................................................................................... 29
7.3水浸法 .............................................................................................................................. 30
7.4水置换法 .......................................................................................................................... 32
8．粒子密度测定 ........................................................................................................................... 35
8.1概述 .................................................................................................................................. 35
8.2集气瓶法 .......................................................................................................................... 35
8.3小比重瓶法 ...................................................................................................................... 37
8.4 大比重瓶法 ...................................................................................................................... 39
9 颗粒分布的测定 ......................................................................................................................... 40
9.1概述 .............................................................................................................................. 40
9.3干筛法 .............................................................................................................................. 45
9.4吸管沉降法 ...................................................................................................................... 46
9.5比重计沉降法 .................................................................................................................. 53
附录A 标准测试数据及计算表.................................................................................................. 62
图1—液限测试圆锥触探仪详图....................................................................................................9
图2— 卡氏液限仪.......................................................................................................................13
图3— 切槽刀和高度量规...........................................................................................................14
图4 缩限仪器..............................................................................................................................20
图5‐‐‐典型收缩曲线......................................................................................................................23
图6—收缩极限试验仪器..............................................................................................................27
图7—线性收缩试验用模具..........................................................................................................28
图8—水浸法测定密度的仪器......................................................................................................32
图9—水置换法测定密度的仪器..................................................................................................34
图10—颗粒尺寸试验所需样品最小质量....................................................................................43
图11—沉降试验取样吸管............................................................................................................46
图12—降低取样吸管进入土壤悬液的安排................................................................................48
图13—确定细小颗粒尺寸的流体比重计....................................................................................54
图14‐‐‐‐液体比重计标度的基本测量...........................................................................................56
表1—单点圆锥触探仪液限测试的因数......................................................................................11
表2—单点卡式液限测试因数......................................................................................................17
表3—用于筛分的土壤样本质量..................................................................................................42
表4—筛分完成时残留在每个试验筛上的最大材料质量..........................................................42
表5—吸管取样时间和当量粒径..................................................................................................51
表6 — 流体比重计测试数据......................................................................................................59
表7 — 水的粘度..........................................................................................................................60
参考出版物.......................................................................................................................封底内页
1 范围
BS1377 此部分内容说明了土壤分类和测定其基本物理性能的测试方法。
根据BS 5930:1981 进行土壤分类，需要这其中大部分的测试。
这些测试测定的某些性能需用于本标准其它部分所述的测试。
与本标准各部分相关的基本要求，以及制备试样的方法，应以本标准的第1 部分为参考。