After the description of its principle and method, the hybrid model of displacement moniting for Shangyoujiang hollow gravity dam is established in this paper.

Basing on the principle and method of analogical and gray correlation analytic, this thesis put forward a method of comprehensive analogy evaluation of embankment bank slope.

Firstly,Based on probability statistics and the reliability theory , in view of the characteristics of the earth-rock dam,this paper has elaborated the principle and method of the reliability analysis of soil slopes systematically , emphatically discussed the statistic method and characteristics of shearing strength of the dam material ,has concluded that Direct method should be adopted in the statistic of shearing strength of the dam material.

Based on analysis of ecological environment characteristics and essential problems in the karst mountain region of the northwest Hunan province, eco-agriculture construction of a case that is representative example of eco-agriculture construction only depending on rainwater and county scale are researched respectively in Cili county by applying ecology principle and method of system.

Principle and method of kinetic microphotometric enzyme activity determination in situ

A systematic analysis and processing of the relation between the fault deformation network in the Beijing-Tianjin area and earthquakes by part of the principle and method of system science (Information theory) is reported in this paper.

This paper reviews the development history and application status of high frequency wave radar, introduces its remote-sensing principle and method to inverse offshore fluid, and wave and wind field.

The constitutional principle and method of the new evaluation method were given and its feasibility and effectiveness were proved by the practical example.

The principle and method of GPR for cracks investigation of tunnel lining were expounded.

The theory of equilibrium of rigid bodies is familiar for analysis on stability of an arch dam abutment, But solution of its non-linear system of equations is complicated, and sometimes negative normal push forces occur on some slides. This is non-conformable to practice. In this paper, the principles and methods of solution of the non-linear system of equations of equal K value method,based on the theory of equilibrium of rigid bodies by means of method of optimization, are described. When...

The theory of equilibrium of rigid bodies is familiar for analysis on stability of an arch dam abutment, But solution of its non-linear system of equations is complicated, and sometimes negative normal push forces occur on some slides. This is non-conformable to practice. In this paper, the principles and methods of solution of the non-linear system of equations of equal K value method,based on the theory of equilibrium of rigid bodies by means of method of optimization, are described. When negative normal push forces occur on some lateral slides,directions of shears on underside will be adjusted to destroy negative values. Result of comparing the calculation by means of this program with that by three-dimensional non-linear F. E. M. has proved that this method is feasible.

The total process in static and dynamic characteristic tests of water turbine governor consist of the operation, measurement, data treatment, numerical approximating, choice of specific points, calculation of eigen value, display of characteristic curve, straigh and Nyquist diagram on the screen and graphing etc. It can be done automatically and continuously by microcomputer. And in the paper, the software and hardware in measuring system, to describe static characteristic curves are advanced by optimum approximation...

The total process in static and dynamic characteristic tests of water turbine governor consist of the operation, measurement, data treatment, numerical approximating, choice of specific points, calculation of eigen value, display of characteristic curve, straigh and Nyquist diagram on the screen and graphing etc. It can be done automatically and continuously by microcomputer. And in the paper, the software and hardware in measuring system, to describe static characteristic curves are advanced by optimum approximation multinomial the amplitude and value phase-angles of harmonic response are defined by system discriminating method, the choosing principle and method of specific points are discussed. And measuring results in the workshop are introduced.

This paper summarizes the principles and methods of the contact pressure between gate and bearing which were studied by authors with the method of photoelasticity during the years from 1985 to 1988 and presents the stress distribution properties of two rollers with different types, drum and cylindrical and the stress results of two rollers with diameters 0= 400mm and I 000mm under loads of 1 X 103kN ,7×103kN and 1×104kN, some results of which have been verified with the solution in elasticity mechanics...

This paper summarizes the principles and methods of the contact pressure between gate and bearing which were studied by authors with the method of photoelasticity during the years from 1985 to 1988 and presents the stress distribution properties of two rollers with different types, drum and cylindrical and the stress results of two rollers with diameters 0= 400mm and I 000mm under loads of 1 X 103kN ,7×103kN and 1×104kN, some results of which have been verified with the solution in elasticity mechanics theory. Measurement and investigation are made on the contact surface (plastic zone) and several relevant problems above have been discussed in detail.