Soil compaction is vital to the success of almost any construction project. Despite given design standards and specifications, the testing and verification of materials used in soil compaction can sometimes be overlooked or tested less frequently than desired. Using improper materials or methods during soil compaction can lead to foundation and slab cracks, soil erosion, utility pipe leakage/breaks, or trench settlement. It is important that the earthwork contractor and the materials testing agency communicate throughout the project to provide the best results for their client(s).

土壤压实试验常常被忽视

Each lift of soil used for structural, site grading, or trench backfill should be tested to confirm that compaction requirements are met and material types being used are consistent with the geotechnical report.

Sometimes proper compaction is overlooked on projects where it actually is necessary. For example, a utility contractor may not think that the backfill for a water main trench needs to be tested because it appears to be in ‘green space’ far away from the new building structure. But, in reality, the material in the trench will support exterior pavement. If the material is placed without being tested by the testing agency, it may lead to cracking in the pavement.

然而，土壤压实试验涉及的远不止确定是否达到或超过规定的土壤压实百分比。除了记录土壤湿度和密度外，Braun Intertec的技术人员还接受了以下培训：雷竞技好Newbee赞助商observe various factors. If any of the following factors cause delays or test failures, our licensed professional engineers may ask further questions to provide recommendations to the project team and keep the project moving.

What do our technicians and engineers consider when assessing soil compaction?

• 材料类型– Is the material being compacted free of organics and debris? Is the correct Proctor being used or has the material changed? Are there any permeability concerns for this layer?

• 提升厚度– Is the contractor placing soil layers in the lift thicknesses recommended by the geotechnical engineer? Has each lift been tested for moisture-density?

• 水分–现场土壤的含水量是否符合规范要求？测试后天气会影响土层吗？粘性土需要干燥吗？

• 压实方法——设备被使用d provide the correct type of compaction for this material (vibration, impact, pressure)? Do additional compactor passes improve the compaction test results? Is the subgrade below the new fill stable and provide a surface to compact against?

通过Braun Intertec技术人员和工程师对这些因素的观察和评估，您可以确信，铺设在雷竞技好Newbee赞助商建筑物地基下方、路堤沿线或路面下方的新填土将具有最高质量。

了解有关土壤压实的更多信息

If you would like to learn more about the science behind soil compaction. Click the button below to sign up for our webinar, “Soil Compaction Fundamentals: Understand the Science Behind Soil Testing”.