Environmental Effects By Pile Driving In WenZhou And Their Controling Techniques

The effect on environment during pile driving is received more and more emphases by civil engineers. There is still no perfect method for it . in this paper,some problem of environment's effect by pile driving and safeguard is further studied according to wenzhou's experience . The main original works include:Firstly,in the chapter of the mechanism of single pile squeezing against soil,the cavity expansion theory is discussed,and pile settlement in saturated clay in wenzhou is also analysed emphatically,the effect of squeezing against soil due to vertical soil yield is described. The soil strength parameter relating to pile driving is studied.Secondly,pore pressure in soil during pile driving is researched. On the basis of analysis of a large amount of observation datum,the regularity of accumulation,dissipation and influence of pore pressure are found.Thirdly,The author has put forward some effective measures to prevent or reduce the damages to the engineering environment in the vicinity,the author also analyses the different effect caused by different measure,the sheltering effect of driven piles is also discussed.Fourthly,the author has discribed environment monitoring technology relating to the effect of pile driving,and has proposed some operating index.At last,the problem of pile group is qualitatively analysed,some conclusions about soil displacement are obtained.