The Three projects rigid frames lookum,cantalever rigid frame lookum and retaining wall are privided to father Tianshan in K617 section of NorthTianshan highway diseases.

In the structure system of triangle rigid frame in combination with arch bridge of non-hinge tie bar adopted in Guangzhou Xinguang Bridge,the triangle rigid frame plays an important rule.

This paper composed of three main parts:In partⅠ, summarize potential calamity and detriment in along driver high road engineering,study the character of mobility of debris、collapse and coast,and summarize other fense methed and the advantage of shed-tunnel struction.

The studies on the mechanical analysis of shed-tunnel structure have been less reported domestically and abroad so far.

According to one tunnel adjacent to mountain at eastern mountainous area in Jilin province,the construction process of shed-tunnel is simulated by the finite element software ANSYS.