This method is also applicable to the problems of pumping (watering) at constant or inconstant rate in fully penetrating well or partially penetrating well.

In this paper,we establish the computational models for unwhole piles based on the restriction of the top and the end of piles,and study the stability of the unwhole piles in the homogeneous soil under axial cycle loads.

Aaccording to the forming principal of spherical surface,it makes the tuning axes of workpiece to forming angle with the turning axes of machine tool and composed incomplete sphere of turning ball spherical pin utilizing the movement of two ball.