September seventh，《Chengdu-Kunming Railway Chengdu-Emei Section Existing Line Quality Improvement ProjectCETZSection construction（General contracting）Tender notice》Publish。According to the plan，The existing Chengdu-Emei section of the Chengdu-Kunming Railway will be speeded up to 160 kilometers per hour.，In order to meet the operation demand of CRH train from Emei to Chengdu after the opening of Emei section of Chengdu-Kunming double line.。

The double track of Chengdu-Kunming Railway is a new or additional two-track railway line based on the existing Chengdu-Kunming Railway.，It is more than 800 kilometers long.，Sectional construction、Sectional opening。The Cheng'e section started construction in December 2013.，Opened in December 2017。After its opening and operation，The speed is not up to the standard of running CRH train trains.，This renovation is also the final preparation for the opening of the whole line.。

1、Bidding conditionsThis construction project Chengdu-Kunming Railway Chengdu-Emei Section Existing Line Upgrading and Reconstruction Project has been completed by China Railway Chengdu Bureau Group Co., Ltd.《Reply to the Feasibility Study Report on the Project of Quality Improvement and Reconstruction of the Existing Chengdu-Emei Section of Chengdu-Kunming Railway》（Cheng Tie Ji Tong Han〔2022〕Number 356）Approve construction，The owner of the project is China Railway Chengdu Bureau Group Co., Ltd.，The construction funds come from the self-raised funds of the technological transformation project.，The proportion of project investment is 100% ，Funding has been secured，Complete construction drawing design documents，The Tenderee is Chengdu-Kunming Railway Co., Ltd.2、Project overview and bidding scopeConstruction site：Chengdu-Kunming Railway Chengdu South Station to Emei Station Construction scale：Partial upgrading of existing Chengdu-Emei section of Chengdu-Kunming Railway，Meet 160km/h Operating conditions，Length of modification is about 81.5km，Wherein the upward direction is about 18.8km、Down about 62.7km，Right. Orbit、Catenary、Electricity、Signal、Bridge、The subgrade and other works shall be reinforced and treated according to the technical standards.。  

3、Bidding scope and division of bid sections

Scope of bidding：Chengdu-Kunming Railway Chengdu-Emei Section Existing Line Quality Improvement and Reconstruction Project。  

Division of bid sections：This tender is divided into one bid section.，Section number：CETZ。

The number of works is：First, about 59 sleepers are replaced.9km、Curve superelevation adjustment approx. 7.7km、Line lining is about 3km、Shaping and ballasting、Remove and replace the glued insulation joint and replace the capacitor pillow, etc.；The second is the replacement of contact wire.、Replacement of catenary mast、Split-phase shift and power line renovation, etc.；The third is the signal、Transfer of track circuit equipment，Insulating joint position adjustment and compensation capacitor replacement, etc.；The four is the reinforcement of 25 bridge beams and the treatment of main body diseases.；Fifth, subgrade disease treatment and other related projects.。

Mileage/Range：Left line GDK25+255～K158+100，Line length 131.182km。Right line K25+255～K158+600 Line Right Line Length 131.699km。

4、Planned duration：120 calendar days，Planned start date：October 20, 2022，Planned completion date ：February 17, 2023。