It is proved through the practice that the adoption of the lifting-jack inclined cable-stayed buckle based on the cable assembling method can solve some problems of the large-span arch bridge,such as multi-section assembly,complicated tie cable system,the out-of-control arch axis and high-risk construction.

Application of the hoisting jack made by ourself in install of large colliery equipment;

Introduced uses the ANSYS software establishment hydraulic power support hoisting jack the method.

Improvement of push jack in ZZ4400/14.5/29 hydraulic support;

Approaching repair technology of the cladding materical of support column and jack;

Apply the Sn-Bi-welding to recondition the chromium-plated layer of vertical posts and jacks;

By using ANSYS software and European CEN standards, the nonlinear finite element simulation analysis on eccentricity load of ram is carried out in this paper, thus, the design and type-modification are optimized and the reliability of design is improved.

Through the convenient visual function of VB software,has carried on kinematics analysis in designing the Model ZY5200/8/18D Hydraulic support that is researched and developed,obtain the kinematics parameter of the Hydraulic support and the orbit pictures of sports.