- 中文主题词：试验方法 ; 地面沉降 ; 粘性土 ; 膨胀
- 标准号：ASTM D4546-2003
- 发布日期：2003
- 英文题名：Standard Test Methods for One-Dimensional Swell or Settlement Potential of Cohesive Soils
- 英文主题词：Expansive soil ; heave ; laboratory tests ; settlement ; swell pressure ; swell index
- 标准状态：现行
- 发布单位：US-ASTM
- 国际标准分类号：93.020 (Earth works. Excavations. Foundation construction. Underground works)
- 载体形态：7P.;A4
- 中国标准分类号：P13
- 国别：美国材料与试验协会
1.1 These test methods cover three alternative laboratory methods for determining the magnitude of swell or settlement of relatively undisturbed or compacted cohesive soil.
Note 18212;Refer to Section 5 to determine the best method for a particular application.
1.2 The test methods can be used to determine (a) the magnitude of swell or settlement under known vertical (axial) pressure, or (b) the magnitude of vertical pressure needed to maintain no volume change of laterally constrained, axially loaded specimens.
1.3 The values stated in SI units are to be regarded as the standard. The values stated in inch-pound units are approximate.
1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.
1.4.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.