Field Monitoring Study on Consolidation Characteristics of Deep Soft Base Treated by Plastic Drainage Board under Filling Loading
Throungh conducted on-site monitoring of the total settlement,layered settlement,pore water pressure,and other factors in the treatment of deep soft foundation with plastic drainage boards under fill loading.On site monitoring shows that the total settlement gradually increases with the increase of filling height.In the early stage of filling,the height is small and the settlement is slow;In the middle stage of rapid filling,the settlement rate is relatively high.When the filling is basically completed,the settlement rate is still relatively high,and it continues to slow down until 8 months later;The layered settlement gradually decreases,and the main settlement is consistent with the distribution thickness of the soft soil layer;Deep horizontal displacement indicates that as depth increases,the horizontal displacement decreases,with the maximum horizontal displacement located at the surface;The lateral differential settlement gradually increases and then decreases over time;The time and depth relationships between changes in pore water pressure and layered settlement and total settlement are basically consistent.Plastic drainage boards can effectively promote the consolidation of soft soil foundation after treatment.
NETL
NSTL
万方数据
