ASTM D3213-13
硬度低未经扰动海积土的搬运、储藏和制备的标准操作规程
Standard Practices for Handling, Storing, and Preparing Soft Intact Marine Soil
ASTM D3213-13 发布历史
ASTM D3213-13由美国材料与试验协会 US-ASTM 发布于 2013。
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ASTM D3213-13 发布之时，引用了标准
- ASTM D1587 土工技术用土壤薄壁管抽样的标准实施规程
- ASTM D2435 土壤单向固结性能的标准试验方法
- ASTM D2488 土壤描述推荐规程（目视手动程序）
- ASTM D2850 粘性土壤上松散不排水三轴压缩试验的标准试验方法
- ASTM D3740 工程设计及建筑中使用的土壤和岩石的试验和或检查中使用试剂评定的规程
- ASTM D4186 使用受控应变载荷的饱和粘性土的一维固结性能的标准测试方法
- ASTM D4220 保存和运输土壤样品的标准实施规程
- ASTM D4452 土壤样品的X射线照相的标准试验方法
- ASTM D653 采用流动空气测量未饱和多孔材料渗透性的标准试验方法
ASTM D3213-13的历代版本如下：
- 2019年 ASTM D3213-19 处理、储存和制备软质完整海洋土壤的标准实施规程
- 2013年 ASTM D3213-13e1 处理、储存和制备软质完整海洋土壤的标准实施规程
- 2013年 ASTM D3213-13 硬度低未经扰动海积土的搬运、储藏和制备的标准操作规程
- 2008年 ASTM D3213-08 硬度低未经扰动海积土的搬运、储藏和制备的标准实施规程
- 2003年 ASTM D3213-03 海底原始松软积土的搬运、储藏和制备标准实施规程
- 1991年 ASTM D3213-91(1997) 处理、储存和制备软质完整海洋土壤的标准实施规程
5.1 Disturbance imparted to sediments after sampling can significantly affect some geotechnical properties. Careful practices need to be followed to minimize soil fabric changes caused from handling, storing, and preparing sediment specimens for testing.
Note 1—The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection, etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on may factors; Practice D3740 provides a means of evaluating some of those factors.5.2 The practices presented in this document should be used with soil that has a very soft or soft shear strength (undrained shear strength less than 25 kPa (3.6 psi)) consistency.
Note 2—Some soils that are obtained at or just below the seafloor quickly deform under their own weight if left unsupported. This type of behavior presents special problems for some types of testing. Special handling and preparation procedures are required under those circumstances. Test are sometimes performed at sea to minimize the effect of storage time and handling on soil properties. An undrained shear strength of less than 25 kPa was selected based on Terzaghi and Peck.3 They defined a very soft saturated clay as having undrained shear strength less than 25 kPa.5.3 These practices shall apply to specimens of naturally formed marine soil (that may or may not be fragile or highly sensitive) that will be used for density determination, consolidation, permeability testing or shear strength testing with or without stress-strain properties and volume change measurements (see Note 3). In addition, dynamic and cyclic testing can also be performed on the sample.
Note 3—To help evaluate disturbance, X-Ray Radiography has proven helpful, refer to Practice D4452.5.4 These practices apply to fine-grained soils that do not allow the rapid drainage of pore water. Although many of the procedures can apply to coarser-grained soils, drainage may occur rapidly enough to warrant special handling procedures not covered in these practices.
5.5 These practices apply primarily to soil specimens that are obtained in thin-walled or similar coring devices that produce high-quality cores or that are obtained by pushing a thin-walled tube into cores taken with another sampling device.
5.6 These practices can be used in conjunction with soils containing gas, however, more specialized procedures and equipment that are not covered in these practices have been developed for use with such materials.
Note 4—For information on handling gas charged sediments, the reader is referred to papers by Johns, et al.,4 and Lee.5
- 标准号
- ASTM D3213-13
- 发布
- 2013年
- 发布单位
- 美国材料与试验协会
- 替代标准
- ASTM D3213-13e1
- 当前最新
- ASTM D3213-19
- 引用标准
- ASTM D1587 ASTM D2435 ASTM D2488 ASTM D2850 ASTM D3740 ASTM D4186 ASTM D4220 ASTM D4452 ASTM D653