<span><span style、" font-family: 宋体;">改变动水压力方向</span></span>
<span><span style、" font-family: 宋体;">回灌地下水</span></span>
<span><span style、" font-family: 宋体;">加快开挖速度</span></span>
<span><span style、" font-family: 宋体;">减少或平衡动水压力</span></span>
<span><span style、" font-family: 宋体;">截断地下水流</span></span>