Recently，Jintai has two rotary excavators for construction at Sifangchang Station of Qingdao Metro Line 5.。

The project is located in the existing open space on the northeast side of Jiaoji Railway.，The north side is CRRC Smart Port 100.#Plot planning is 14~A 25-story residence，One floor underground，The south side is the Jiaoji Railway.，The north side of the entrance and exit is the planned Siji South Road.。

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Project overview

Sifang Factory StationA2 The total length of the open-cut section at the entrance and exit is about 145..2m，The excavation width of the foundation pit is 8m~11.4m，The depth of foundation pit is about 23.8m~26.35m。

The site is backfilled from 0 to 2 meters.，2 to 7 m moderately weathered sandstone，Slightly weathered sandstone from 13 to 30 m。

The equipment involved in this construction is the large-scale rotary excavation of the fourth gold Thailand medium and large scale.，Both of them are customized dwarf rotary excavators.。Although the height has been shortened.，But the ability to enter the rock has not been compromised at all.。Hole depth 30m，The speed of one pile in 9 hours has been recognized by users.。Lift weights lightly，The skillful posture has once again demonstrated to the market the ability of Jintai to dig into the rock.。