Research of Sand Drains Consolidating Calculation Method Considering Water Level Decline
|School||South China University of Technology|
|Keywords||soft ground treatment consolidating calculation sand drains water level decline|
Drainage consolidation as a kind of important soft foundation treatment method, widely used in soft foundation project which created by land surrounded the sea. When soft foundation treatment using hydraulic fill heap load mode, it will cause the rise of ground water level, however, it is lack of research on the influence of water level decline to sand drains foundation consolidate by hydraulic fill.Based on the soft foundation treatment monitoring engineering background, this paper adopted methods which combine monitoring and theoretical analysis, and analyzed the influence that underground water level decline to the consolidation of soft soil foundation.First, relied on a soft foundation treatment engineering in the southern port, the paper introduced the soft foundation reinforcement engineering construction and monitoring conditions, studied on the soft soil foundation mechanics, deformation characteristics in the process of preloading construction.Second, based on the study on the differences between hydraulic fill heap load and fill heap load, it pointed out that hydraulic fill heap load mode characteristic; By means of the existing variable load sand Wells consolidation theory solution, it added the factor water level decline, then concluded a new calculation model about soft foundation consolidation theory; By using c++ computer program ,it calculated and analyzes the engineering measurement, it proved the validity of the model which the paper established and the feasibility of the theoretical calculation method.Third, based on above analysis research achievements, it searched the method of Improve blow filling soft foundation treatment technology, got some beneficial conclusions for engineering design and construction.