Discussion on the cross section types of high piers of bridge and stability calculation;

The paper introduces the manufacture and the model for stability calculation of the GFRP(Glass Fiber Reinforced Plastic) supporter of pneumatic roofborer, and provides scientific basis for opimum design of the supporter.

Based on the analysis of failure mode and stability calculation at Da-Gu Jian of Zi Gui town in Hubei province,it is possible that the high slope falls along the bed rock surface or collapses by soil mass.

For fixed targets and moving constant velocity targets, deterministic parameters calculation and linear least square algorithms are applied to set up mathematic model and to do some algorithm simulations.

Heuristic method approach to the computational stability analysis of finite-difference equations;

The computational stability of two kinds of general three time level schemes and two time level schemes are analyzed, a new method for judging the computational stability is given.

Based on the forced dissipative nonlinear evolution equations for describing the motion of atmosphere and ocean, the computational stability of the explicit difference scheme of the forced dissipative nonlinear atmospheric and oceanic equations is analyzed and the computationally stable explicit quasi complete square conservative difference scheme is constructed.