动水压作用下临近湖泊沉井结构整体受力性能研究

Study on the Overall Mechanical Performance of Caisson Structures near Lake Under Dynamic Water Pressure

临近江河湖泊修建顶管掘进机始发井或者接受沉井结构,需要面临湖泊水位不断变化的情况。为此,针对湖泊水位变化引起的水压力差异性对沉井结构受力状态的影响,论文采用数值计算分析方法建立了动水压作用下沉井结构数值计算模型,研究了动水压作用下沉井结构整体受力性能。

The construction ofpipe jacking tunneling machine starting or receiving open caisson structure near rivers and lakes needs to face the situation ofconstantly changing lake water level.Therefore,according to the influence ofwater pressure difference caused bylake water lev-el change on the stress state of caisson structure,the paper established a numerical calculation model under dynamic water pressure and studied the overall stress performanceofcaisson structure underdynamic water pressure.