Application of RI-Cone to Foundation Engineering

通过在不同环境下的使用，证明了RI锥贯仪的有效性。通过这些侵彻试验获得的数据在基础工程中得到了有效的应用。主要结论如下：1。这些新研制的锥形贯入仪已在各种土壤环境中得到了有效的应用，如氯化物含量高的复垦土地、正常的粘土沉积物和含水量非常高的场地。土壤中氯离子的存在会导致对土壤自然含水量的低估。因此，在海洋环境或海洋沉积物中使用RI锥时必须小心。土壤改良工作可以通过这些锥形穿透仪进行连续监测。这是通过在施工现场检查空隙率和密度剖面来完成的。从这些锥贯仪获得的数据可以提供有关粘土地基状况的有用信息。我们可以用这组信息作为有限元分析的输入。受上述结果的鼓舞，我们相信通过在施工过程的各个阶段部署这些锥形穿透仪，执业工程师可以建立一个数据库，用于计算粘土基础的沉降。

The effectiveness of RI cone penetrometers has been demonstrated by using it in different environments. And the data obtained through these penetration tests are effectively employed in the foundation engineering works. The main conclusions derived are as follows :1. These newly developed cone penetrometers have been used effectively in various soil environments, such as the reclaimed land with high cloride content, normal clay deposit to site characterized by very high water content.2. The presence of chloride ions in the soil can lead to the underestimation of the natural water content of the soil. Therefore care must be taken when the RI cone is employed in the marine environment or the marine deposits.3. Soil improvement work can be continuously monitored through these cone penetrometers. This is done by checking the void ratio and the density profiles at the construction site.4. The data obtained from these cone penetrometers can offer the useful information about the conditions of a clay foundation. We can use this set of information as input for finite-element analyzes.5. Encouraged by the results obtained above, we believe that by deploying these cone penetrometers at various stages of construction process, practicing engineers can build-up a data base which can be used in calculating the settlement of a clay foundation.