To improve the dynamic performance of the deviation control system and solve the motor vibration problem,the deviation control algorithm is proposed,which is related to intelligent PD feedback control combined with the feed-forward regulation for the system deviation,and its MatLab simulation result shows.

To solve the strip deviation problem and the strip alignment performance is heavily influenced by the transport speed in winding process,this paper introduces an advanced deviation control system based on intelligent control which takes DC servomotor as actuator.

From jacking construction,control survey,deviation rectification,stability calculation and other aspects the construction process of jacking pipe is introduced in order to ensure construction quality.

In light of the properties of incompact sand and silt,the paper introduced the scheme of thin wall caisson used in drilled pile foundation The posibitility of subsidence is predicted and the measures helping sinking are proposed in the sinking process The paper also analyzed the control of deviation rectification and correction of deflection during caisson sinkin

Adopting the controlling method of adjusting target being in progress to the concrete rigid frame bridge cantilever construction-controlling technique,monitored by the deflection and strain,the real amount of deflection and the true stress of the actual structure have been computed to meet with the quality of bridge construction the design and code request.

The key elements and factors influencing the guide accuracy in a web guide system were analyzed.