According to the guides for the development of engineering machinery products given by CSIC, based on the technical advantages of the institute in mechanical, electrical, hydraulic and control fields, the proof tests of techniques, markets and operation modes for the projects such as long auger and rotary digger are carried out and the engineering mechinery industry is entered.
Long auger/Rotary digger
Long auger is a new product developed by the institute. It is a construction tool for drilling holes in basic building construction projects, mainly suitable for construction on sandy soils,clays and silty soils,widely used in basic construction projects such as municipal construction, highways and bridges, high-rise buildings.
Rotary excavators are applied for the constructions on soil layers such as sandy soil, cohesive soil and silty soil and widely used in basic groundwork constructions such as filling pile, continuous wall and base enforcement. The have been applied in basic constructions of municipal construction, roads and bridges and industrial and civil buildings. Main technical data is as follows:
Tunnel excavation machinery
Tunnel excavation machinery is a special engineering machinery for tunnel excavation integrated with mechanical, elctrical, hydraulic,sensor and information technology. The basic working principle is a cylindrical steel assembly excavating soil and pushing forward along the axial line of the tunnel. The cylinder shell makes temporary support for the part of tunnel that is excavated and unlined. It bears the pressure fron surrounding layers of soil, sometimes bears underground water pressure and blocks the undergound water outside. The excavating and cutting soil, transporting soil residue and assembling pipeline and tunnel lining are carried out under the protection of the shell.