监控杆

监控立杆基础的混凝土浇注面平整度小于5mm/m尽量保持立杆预埋件水平。预埋件法兰盘低出周围地面20~30 mm ，再用C25细石砼把加强肋盖住，以防止积水。 monitor the vertical bar for concrete surface roughness is less than 5 mm/m try to keep the vertical bar embedded parts level.Embedded parts below ground around 20 ~ 30 mm flange plate, reoccupy C25 fine stone concrete cover, the strengthening rib in order to prevent the water.