Guiyang metro line 2 yangming temple station main structure casting completed

On October 23, the final concrete pouring of arch wall lining of yangming temple station on line 2 of guiyang metro was completed, marking the completion of the main structure of the station.

Guiyang rail transit line 2 yangming temple station, 269 meters long, for the first branch of the arch cover dig station, located at the intersection of north baoshan road and dongshan road under the north side of the road, along the north baoshan road north-south layout. The station is an underground two-storey island station with a standard section width of 19.9 meters and a maximum excavation span of 26 meters. The construction scheme of the lining of the arch wall of the station adopts the method of the middle coil bracket and the side movable triangle truss.

Since the main structure arch wall lining from the station, the construction unit to overcome the large span, high security risks, the tight construction, on-site operation space is narrow, the demand for steel and concrete, logistics organization is difficult, each working procedure construction interference big difficulties, such as cooperated-builing parties, attaches great importance to solve these problems, it is specifically for the required material support, priority to satisfy the station construction, to avoid the scene outs occurs; Second, the project department actively communicated with the owner and commercial concrete station to effectively improve the concrete time supply and ensure the smooth completion of lining structure casting. Third, the original scheme was carded and optimized. Movable triangular trusses were used on both sides of the bracket for construction, which shortened the construction time of single cycle and effectively solved the problem of logistics channel.