Under the I-beam steel erecting shed support in the composite roof and pressure centralized area,the pressure relief support and archor belt strengthening support are applied.

• 在复合顶板及压力集中区域内用工字钢架棚支护方式下,采用卸压支护及锚带加强支护技术,减轻了棚子的压力,有效地控制了棚子变形,满足了支护的要求。