Analyzing the characteristics of the contact line′s overlap in Ha-Da Railway briefly,the design problem of the contact line′s overlap on the electrified railway is proposed.

And describe the overlap and tensioning equipmen

The paper analyzes the design of OCS overlapping section inside tunnel of Yuhuai line, proposes the installation and adjustment of the OCS overlapping section inside the tunnel in accordance with the design of overlapping suspension and compensation suspension in overlapping section so as to reach the requirements of the design.

This article,by studying some cases provided by Xi’an Railway Bureau,analyses the problems occurring in installing isolated switches on the different switching posts of insulated section joints.

Directing toward the flow design of cantilever anti-slide piles,the thesis which is based on foundation coefficient method and finite element method mainly analyzes service behavior influences by changing several design parameters,such as cross-section type,cross-section size,range interval,strength of rock mass in anchorage zone,bedded length,and so on.

The writers analyze and determine the span of KH in anchorage zone according to the strength theory of rock mechanics and text results of rock samples.

The shear stress of prestressed anchor cable is unevenly distributed along anchoring section, and there are several different methods in the research on the unevenness, but the curves of the shear stress distribution by these methods are not always the same.

In order to calculate the reliability index and failure probability for the stability of rigid anti-sliding pile,performance function was set for the stability of soil body suffering pressure at the side of anchoring section of anti-sliding pile,and JC method was introduced to calculate the failure mode,obtaining reliability index and failure probability.

Distributing form and correspond data of shear stress τ and normal stress σ on the interface of wall rock and resin anchoring section is educed by ANSYS simulation,and shows that anchoring action occurs mostly at deep anchoring section,where under extrusion swell state.