excavation and filling meaning in English

挖填

Workmanship on building sites - code of practice for excavation and filling
建筑工地操作工艺.第1部分:挖掘和填塞实用规程
As the balancing platform tends to make the barycenter move backward , a more balancing stress distribution under the wall , a higher and steadier wall can be achieved . furthermore , the resupine back of the downward wall not only works reasonably , but also can reduce the amount of excavation and filling obviously . so gravity retaining walls with balancing platform are applied heavily
衡重式挡土墙因具有衡重台使墙身重心后移、墙底应力趋于平衡，可提高挡土高度、增强墙体稳定性；且仰斜式下墙不仅受力合理、还可减少开挖与回填量等优点而被大量采用。