回填土取样标准(国外英文资料).docVIP

回填土取样标准(国外英文资料) Number of samples Samples of soil samples shall be carried out according to the existing national standards and the existing standards of the industry or region. (a) on the basis of the construction foundation engineering construction quality acceptance specification (GB50202-2002) and specification for design of building foundation (GB50007-2002) sampling in the process of the filled soil compaction, stratified sampling shall examine the dry density and water content of soil. There should be a test point in every 50-100m2 area, and the compaction coefficient is obtained according to the test results. Ring (cutting) (2) sample from jgj79-2002 When sampling the quality of the soil sample mat, no less than one test point for every 50-100m2 of the large foundation pit. No less than one point per 10-20m for the base tank; Each individual cylinder should be no less than one point. Ring (cutting) 1, the whole piece of cushion layer (1) the area is less than or equal to 300m2; The ring knife method is 30 to 50m2; The injection method is arranged for 10-15m2. (2) the area 300m2; The loop-knife method is a 50-100m2 layout; The injection method is 20 to 30m2. 2, strip foundation layer (1) refer to the whole cushion layer. (2) the ring knife method is assigned at least one per 20m; The injection rate is at least one per 5m. A separate foundation layer (1) refer to the whole cushion layer. (2) there are no less than two points on each individual base. (4) sampling according to the urban road project construction and acceptance discipline (dbj8-225-1997) Earth roadbed and lime layer test frequency: each layer 1000m2 measure one group, each group three points. Ring (cutting) Sidewalk roadbed and dirt shoulder test frequency: 2 points per 100 megabytes. Ring (cutting) Gravel, gravel pad, and trislag check frequency: 1 point per layer 1000m2. (sand filling method) Primary test frequency: 1 point (ring tool) per layer 1000m2 Import and export slope soil test freque