Anchor tiebacks是隔板(或墙)的侧向支撑结构。舱壁通常由钢、混凝土或木片桩制成。板桩是建筑材料的长而平的部分，纵向互锁，纵向设置，形成薄壁。海水舱壁在其背面保留了陆地土壤，并作为一个盾牌，防止海水侵蚀其正面。被称为“填充舱壁”的舱壁也可以完全在陆地上建造。这些方法可以将类型的土壤或工地与相邻的土壤(通常位于不同的海拔高度)分隔开，或者支撑开挖的一侧，以提供土壤边坡稳定性。舱壁板桩的底边下沉或打入下层土壤。< / p > < / div >
When site constraints do not permit cheaper and more traditional excavation methods, constructing slurry walls provides an alternative method of casting concrete in place below the surface elevation. Slurry walls, used for the construction of basement walls and other below grade foundation elements, do not require formwork and excavation side bracing. Instead, a thin trench is dug into the site soils which exactly matches the thickness and depth of the new below grade wall.