Application of CD method in the inclined shaft ripping construction of Guanyintang tunnel;

This paper introduces the transitional measures for the transformation of the construction from the loess transverse 6~# tube into the main tunnel, and expounds the steel frame turning construction of transverse tube, the setting up of the gantry at the junction between the transverse tube and the main tunnel, and the ripping construction of the main tunnel.

3 auxiliary incline shaft of Nanliang Tuunel on Shijiazhuang-Taiyuan Special Passenger Railway Line as the example,this paper introduces the construction method adopted in the hard wall-rock for rapidly finishing the ripping construction,guaranteeing the effective control of the over-excavation and less-excavation,and rapidly forming the two-way work capacity in the main tunnel.

The application of jacking construction technique in existing railway construction;

Generalization of the jacking construction line reinforcing of haven-built railways;

Discussion of the jacking construction of oblique crossing frame bridge and suggestions;

The jacking construction steps of polluted water main tube net project of Sanxiang town Zhongshan city;

In the combination with project example the paper states the destruction phenomenon of roads along lines due to the jacking construction of urban sewers.

In the construction of inverted siphon project of Puxian Bridge,due to the complex geological conditions of the site and being affected by permeation of surface water and ground water,the sinking well and pipe-jacking construction has serious hidden dangers in the construction,which prevent the construction from going on.

Slump failure happened in Luolong Rd-through pipe-jacking construction for sewersof Guanlin Avenue asthe soil isof sandy gravel.

According to site monitoring and test results, the mechanism and behaviour of soil deformation induced by large-scale pipe-jacking construction are analyzed and a significant mechanism theory is presented.

Combined with practical engineering of west bridge in Zhujiang bridge,the author separately illustrates the construction technology and time-limit of traditional bearing changing method and improved bearing as sideway,compares the two bearings,and introduces the selection of new-type bearing,in order to accumulate experience for bridge incremental launching construction.

The reasonable arrangement of the launching nose will be critical to the smooth proceeding of incremental launching construction of the whole bridge.

The main shipping channel bridge and the non-navigable span approach bridges of the Bridge respectively make use of the long span continuous composite arch bridges and continuous composite box girder bridges that are all erected by the multi-point and synchro incremental launching construction technique.