沉降速率与沉厚比控制填土速率的对比研究

Comparative Study of Settlement Velocity and Ratio of Subsidence and the Loaded Thickness for Controlling Filling Rate

在实际工程中急需一条拓宽公路来满足温州日益增长的交通.对温州浅滩灵霓海堤试验段的沉降规律进行分析,研究表明:软土沉降规律呈阶梯状.用沉降速率来控制路堤施工进度只是考虑了沉降量与时间的关系,而不能考虑到荷载的影响,考虑采用体现沉降量、时间、荷载三方面因素关系的指标——沉厚比,用这一指标来控制沉降,比用沉降速率控制更有效.

In practical engineering a road would be widen to meet the urgent need of Wenzhou increasing traffic. We analyzed the settlement laws of Wenzhou Shoal Lingni seawall test section. The study shows soft soil settlement laws was with stepped characterstic. Using sedimentation rate to control construction schedule,it only considered the relation of settlement and time,but did not take into account the impact of the load. The ratio of subsidence and the loaded thickness can reflect the impacts of the time,the settlement and the load. This indicator is better than the sedimentation rate control standards.