percent compaction

简明释义

压实百分数

英英释义

例句

1.To ensure stability, the percent compaction of the gravel layer must be at least 90%.

为了确保稳定，砾石层的压实百分比必须至少达到90%。

2.During the testing phase, we measured the percent compaction of the backfill material.

在测试阶段，我们测量了回填材料的压实百分比。

3.Achieving a higher percent compaction can significantly enhance the load-bearing capacity of the structure.

达到更高的压实百分比可以显著增强结构的承载能力。

4.The report indicated that the percent compaction of the asphalt was below the required standard.

报告显示，沥青的压实百分比低于要求标准。

5.The construction team achieved a percent compaction of 95% in the soil before laying the foundation.

施工团队在铺设基础之前，土壤的压实百分比达到了95%。

作文

In the field of civil engineering and construction, understanding soil properties is crucial for ensuring the stability and durability of structures. One important concept that engineers often encounter is percent compaction, which refers to the degree to which soil has been compacted compared to its maximum possible density. This measurement is vital because it influences the load-bearing capacity of the soil and the overall integrity of any structures built upon it. Percent compaction is typically expressed as a percentage, where 100% indicates that the soil has reached its maximum density under specific conditions.The process of compaction involves applying mechanical forces to soil to reduce the volume of air within it, thereby increasing its density. Various methods can be used for compaction, including rolling, tamping, and vibrating. Each method has its own effectiveness depending on the type of soil and the desired density. For instance, granular soils, such as sand and gravel, tend to compact more easily than cohesive soils like clay. Therefore, achieving optimal percent compaction requires careful selection of compaction techniques based on the soil type and project requirements.To calculate percent compaction, engineers often conduct tests such as the Proctor test, which determines the maximum dry density of soil and the optimum moisture content required for compaction. By comparing the field density of compacted soil to this maximum density, engineers can assess whether the soil has been adequately compacted. A percent compaction of less than 95% may indicate insufficient compaction, which could lead to future settlement issues or structural failures.Moreover, achieving the right percent compaction is not just about following specifications; it also plays a significant role in environmental sustainability. Properly compacted soil can minimize erosion and runoff, enhancing the ecological balance of the site. Additionally, it can reduce the amount of materials needed for construction, as well-compacted soil can provide a stable base for pavements and foundations, thus lowering the overall carbon footprint of a project.In conclusion, percent compaction is a critical factor in civil engineering that affects both the performance of soil and the longevity of structures. Understanding this concept allows engineers to make informed decisions regarding soil preparation and compaction techniques, ultimately leading to safer and more sustainable construction practices. As we continue to develop infrastructure, prioritizing proper percent compaction will be essential for building resilient communities that can withstand the test of time.

在土木工程和建筑领域，理解土壤特性对确保结构的稳定性和耐久性至关重要。工程师经常遇到的一个重要概念是百分比压实，它指的是土壤相对于其最大可能密度的压实程度。这个测量非常重要，因为它影响土壤的承载能力以及在其上建造的任何结构的整体完整性。百分比压实通常以百分比表示，其中100%表示土壤在特定条件下已达到其最大密度。压实过程涉及施加机械力于土壤，以减少其内部空气的体积，从而增加其密度。可以使用多种方法进行压实，包括滚压、夯实和振动。每种方法的有效性取决于土壤类型和所需密度。例如，颗粒土壤，如沙子和砾石，通常比粘性土壤（如粘土）更容易压实。因此，实现最佳的百分比压实需要根据土壤类型和项目要求仔细选择压实技术。为了计算百分比压实，工程师通常会进行诸如普克托试验（Proctor test）等测试，该测试确定土壤的最大干密度以及压实所需的最佳含水量。通过将现场压实土壤的密度与该最大密度进行比较，工程师可以评估土壤是否已充分压实。低于95%的百分比压实可能表明压实不足，这可能导致未来的沉降问题或结构失败。此外，达到正确的百分比压实不仅仅是遵循规范；它还在环境可持续性中发挥着重要作用。适当压实的土壤可以最小化侵蚀和径流，增强现场的生态平衡。此外，它可以减少建筑所需材料的数量，因为良好压实的土壤可以为路面和基础提供稳定的基础，从而降低项目的整体碳足迹。总之，百分比压实是土木工程中的一个关键因素，影响土壤的性能和结构的耐久性。理解这一概念使工程师能够就土壤准备和压实技术做出明智的决策，最终导致更安全和更可持续的建筑实践。随着我们继续发展基础设施，优先考虑适当的百分比压实将对建设能够经受时间考验的韧性社区至关重要。