一、遇到坚硬粘土    粘土硬度大，含水少，挖沙船操作员要控制绞刀制动压力和速度，单层挖沙面要薄。不要用蛮力，要控制力度和速度，慢慢开挖

    通过以上介绍是不是挖沙船的操作员要实地培训，要根据实际情况来操作挖沙船，对挖沙船要爱护有加。 

 Sand dredger operators must be trained before the job, like driving must test driver's license as important, dredging sand is an important mechanical equipment, in the use of safety, to pay special attention to the problem can be dealt with in a timely manner, the treatment of different soil conditions will make different construction plans, such as
 First, encountered hard clay clay hardness, less water, sand dredger operator to control the brake pressure and speed of the cutter, single layer to dig the surface to thin. Do not use brute force, to control the strength and speed, slowly excavation
 Second, the sand sandy soil is relatively loose, the coarse particles, dredging operators in excavation thickness, speed and the front of the distance can not be too large to prevent blockage.
 Third, encounter hard plastic clay to prevent the mud will stick to the knife, in the process of the operator should often lift the reamer to check.
 Four, to meet the quicksand operator to the dredging sand and speed can be properly increased.
Through the above introduction is not digging sand operators to field training, according to the actual situation to operate dredging sand, to dig sand to cherish.