Dredging-Rake flat Saul shallow Construction methods

 

Self-propelled Rake suction-ship in the dredging Construction process,because the Rake head width,number of weight,as limiting performance itself,and the construction technology,tidal flow,the wind,the influence of soil,the excavation of the sea always appear the rugged ditch;Although construction ship adopt harrow evenly,the excavation of the font,fixed rake methods and measures etc,the ditch will always accompany construction process,so formation of shallow region,shallow stubborn in the project later;Rake suction-ship in order to eliminate these shallow region, shallow point(Achieve engineering design requirements), will spend a lot of time, equipment and resources, very low productivity, cause great works of waste; so we in the construction practice, exploration and development using dredging rake and shallow boat flat replace or auxiliary Rake suction-ship for leveling and shallow the construction methods;use Small ships replace High-power ships,use auxiliary vessels replace dredging ship for leveling and shallow construction, Received the twice the result with half the effort. Rake suction-ship the engineering construction to late stage,will appear large, elevation and the ridge within the groove,the rake head of Rake suction-ship to eliminate the effects of low planting at this time,but the ditch is more and more deeply, and the negative effect is deepened,is waste square,is don't need; dredging rake and shallow boat flat is offset some insufficient of rake head, The characteristics of wide component, can eliminate large area, The major components have a big weight, Strong ability to ground, And accurate positioning, from the longitudinal and transverse wanted to dig for shallow point, Cutting high and for low, don't add waste, economic and reasonable. Another use auxiliary vessels replace dredging ship for leveling and shallow construction, not only save time, improve the mire ship and shallow equipment utilization, and saving the cost for the project, make trough flat, shallow soil smooth, not overflow tank outfit, economic environment.This method applicable in the dredging engineering later for trailing suction hopper dredger construction left shallow fruiticosa, shallow point cleaning, also applicable engineering period auxiliary Rake suction-ship for high ridge, peak. Fruiticosa to cut. Improve slot smoothness, improve Rake suction-ship’s dredging effect. Dredging rake and shallow boat flat Is composed by dragged by a special specification dragged steel truss structure equipment.Stranded cable equipment can use its vertical, to control the dredging rake flat saul shallow boat bottom elevation, using drag force tugs voyage and dredging rake flat saul shallow boat self-gravity to break soil,cutting high and fill to the deep part, purpose is to eliminate shallow.