某工程地下室为三层框架结构,为满足施工期间在其顶板上行走重型运输车辆的承载要求,采取型钢支撑对地下室进行加固.以地下室顶板混凝土梁跨中为主线布置观测点,每隔15 d进行1次变形监测,采用全站仪测定支撑柱柱顶标高及支撑梁跨中坐标,确保了地下室顶板上的车辆行车安全.%The basement of an engineering is frame structure and three storeys. It adopts structural steel support-reinforce method for the basement reinforcing, meeting the load bearing requirement of heavy vehicle. The midspan of concrete beam of basement roof arranges principal observation points and carries out deformation monitoring every half a month, it adopts total station to measure elevation at the top of support column and coordinate for midspan of support beam, ensuring the traffic safety of basement roof.
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