Method Statements-----토공사, 펜스 공사, 옹벽 공사
Earthworks 1-1 Clearing and grubbing All surface objects and all trees, down timber, rotten wood, stumps, roots, snags, brush, other vegetation, rubbish, and other protruding obstruction, not designated to remain, shall be cleared and/ or grubbed, including disposal as required. In areas under embankments, from which top soil or unsuitable materials are to be removed or which ..