Optimal Moisture Content Considerations for Dynamic Compaction

控制土条件下湿陷性土的强夯处理 湿度调节将在实验室和 领域 目的是确定最佳湿度 内容的基础上的深度和程度的改善，并根据程度 振动衰减。 将对改进进行评估 使用表面高程变化，密度增加基于 未分布样品，基于锥体的强度增加 硬度增加的基础上 压力计测试 将努力评价 预测最佳含水量的实验室技术 字段压缩 测试将包括普罗克特水分密度 各种能量水平的试验以及压实试验， 将未受干扰的块体样品修整到压实模具中。 强夯最佳含水量概念的验证 湿陷性土壤将导致增加压实 效率和土壤改良，缩短施工时间， 降低成本。

Dynamic compaction of collapsible soils under controlled soil moisture conditioning will be performed in laboratory and in the field. The objective is to determine the optimum moisture content based on depth and degree of improvement, and on degree of vibration attenuation. The improvement will be evaluated using surface elevation change, density increase based on undistributed samples, strength increase based on cone penetrometer soundings, and stiffness increases based on pressuremeter testing. Efforts will be made to evaluate laboratory techniques for predicting optimum moisture content for field compaction. Test will include proctor moisture density tests at various energy levels as well as compaction test on undisturbed block samples trimmed into compaction molds. Validation of the optimum moisture concept for dynamic compaction of collapsible soils will result in increased compaction efficiency and soil improvement, shorter construction times, and reduced costs.