Analysis Of The Affects Of The Grouting Reinforcement And The Construction Of The Diaphragm Wall To The Displacement Of The Adjacent Bridge Pier

In this paper, the engineering background of metro NO.2 Wuhan Xunlimen station, analysis of the law of grouting reinforcement, consolidation isolation piles and diaphragm wall to affect to the bridge pier. According to the engineering, investigate into the basic principies of the monitoring survey, the requirement of the measuring instruments, survey design, measurement data of collection, information analysis and so on. Through monitoring of the light rail bridge pier settlement and horizontal displacement to establish a field test database, and analysis of the law of grouting strengthened process and the construction of the continuous wall to affect to the pier deflection.Second, to simulated calculate the base of light rail and foundation with the ABAQUS finite element software, analysis of the law of the bridge pier subsidence in different construction conditions.According to the the engineering test and finite element analysis,to obtain the main results of the following areas.1.Through the contrast analysis of the different construction process to affect to the bridge pier subsidence, to abtain the result of the construction of the isolation pile after grouting can reduce the isolation pile pier settlement.2.Soil deformation modulus to affect to the bridge pier subsidence money is very sensitive in ABAQUS finite element software. Through grouting reinforcement to change the function of the soil mechanical to improve the soil's deformation modulus can effectively reduce the bridge pier subsidence. The phenomenon of the foundation uplift is not obvious during the grouting reinforcement date.3.The different positions of the isolated pile excavation calculation,the construction of a single isolated pile to affect to the pier related to the distance of the pier, the affects of the construction of the isolation pile near the pier to the bridge pier subsidence is greater.4.Through the finite element method to calculate, the bridge pier subsidence money is greater than measured data obviously without considering the affects of the mud, to show the effects of the reducing subsidence of the mud static supporting role to the pier near it is obvious during the continuous wall excavation date.