管幕预筑法顶管施工顺序对地表沉降的影响

杨松松,王梅,杜建安,郭勇,耿炎

Influence of construction sequence of pipe jacking by pipe-roof pre-construction method on ground surface settlement

Song-song YANG,Mei WANG,Jian-an DU,Yong GUO,Yan GEN

表 1 工程地质层分布

Tab.1 Distribution of engineering geological layers

层号 地层名称 颜色 状态 L1/m L2/m 1-1 杂填土 杂色 松散~稍密 地表可见 1.5~9.6 1-2 素填土 黄褐色 松散~稍密 0~4.6 4.0~9.6 2-1 新黄土 黄褐色 软塑 5.6~15.4 3.5~15.9 2-2 新黄土 黄褐色 硬塑 12.5~26.6 29.9