Research on the Treatment of Vehicle Jumping Disease in the Transition Section of a Deep Soft Foundation Road Bridge of the Expressway
Combined with the treatment project of the bridgehead jumping disease with deep soft foundation of a in-service highway embankment by measured cumulative settlement of 40.60 cm of brrigehead,laboratory soil test,the theoretical calculations and GEO5 model analysis were carried out.The results show that the cumulative residual settlement within 15 years is not more than 10.00 cm requirements of the specification of the bridge headway allowable settlement after the work."CFG+road resurfacing"and other treatment programs for checking and computing are put forward,the total remaining settlement after the treatment program is 9.76 cm,which it shows that the treatment design scheme is more reliable.Combined with the need to protect the traffic and the existence of preconstructed CFG piles at the base of the site,the construction sequence and process under the traffic condition were formulated to ensure the feasibility of the program.
deep soft soil areatransition sectiondiseasetheoretical calculationresidual settlementCFG piles
万方数据
维普
