Xinhua News Agency, Beijing, 8 December（Reporter Fan Xi）Reporters learned from China Railway Construction Corporation Limited on the 8th.，With the smooth progress of construction,，New Progress in Some Highway and Railway Projects Under Construction in China。

In the northwest，The right line of Gaoba Tunnel of Danning expressway, which was constructed by China Railway Eighteenth Bureau Group, was successfully connected.。As the only three-lane tunnel on the whole line,，Gaoba Tunnel is to realize the mutual conversion between Danning Expressway and Fuyin Expressway.“Throat”Engineering。

According to the project manager of China Railway 18th Bureau Group，Denim（Danfeng County—Ningshan County）The total length of the expressway is 222 kilometers.，It connects Shanghai and Shaanxi from east to west.、Fu Yin、Bao Mao、Ten days、Beijing, Kunming and other expressway.，Radiating the old revolutionary base areas of Sichuan and Shaanxi。After the project is completed and opened to traffic，It will further improve the regional traffic network system in Shaanxi Province.，Promoting Rural Revitalization in the Old Revolutionary Areas of Sichuan and Shaanxi，Drive the economic and social development along the line。

In the southwest，The other day，At the construction site of Chongqing Liangkai Expressway，A 78-ton steel box girder was stabilized by two cranes.“Grab”Get up，It is precisely hoisted to the predetermined position in the air of 13 meters.，It marks the successful completion of the erection task of the main beam of the steel-concrete composite beam of Shilian Hub of Liangkai Expressway.。

According to the project manager of China Railway 15th Bureau Group，Liangkai Expressway is an inter-provincial expressway jointly constructed by Sichuan and Chongqing.。After the completion of the project，It will further improve the comprehensive layout of Chengdu-Chongqing urban agglomeration expressway network.，In order to strengthen the interconnection of adjacent areas in the Chengdu-Chongqing economic circle,、Promote the development of regional integration and provide transportation guarantee。

In East China，The last 2 of Zhili Viaduct of Huhang expressway constructed by China Railway 16th Bureau Group.8m large-diameter super-long bored pile was successfully poured，It marks the completion of the construction of 284 large-diameter and super-long bored piles in the pipeline section.。

According to the project manager of China Railway 16th Bureau Group,，The project is located in the alluvial-lacustrine plain area with dense river network.，The construction of the viaduct is equivalent to“Multi-layer flow biscuit”Pile driving。In order to solve the problem that the pile is easy to collapse、Shrinkage、Tilt and so on，Project Team Joint Scientific Research Institutions，Select the domestic leading super-large rotary drilling rig，And a matching sand filter was introduced.，Strengthen the hole cleaning capacity，Guarantee the quality of pile hole bottom。

Huhang Expressway is in Zhejiang Province.“Fourteen five”Major construction projects during the period。After the completion of the project，Huzhou will add a new fast passage to Hangzhou.，Further improve the layout of regional expressway network。

At the construction site of Hangzhou-Wenzhou Railway，The hoisting construction of steel capping beam of Yongjia right line of Hangzhou-Wenzhou Railway, which was constructed by China Railway 24 Bureau Group, was successfully completed.，It marks that another difficult project of Hangzhou-Wenzhou Railway has been overcome.，It has effectively promoted the whole process of Hangzhou-Wenzhou Railway.。

According to the project manager of China Railway 24 Bureau Group,，This construction is to hoist 7 steel capping beams above the existing Yongtaiwen Railway.。Steel capping beams weigh up to 276 tons.，The hoisting weight is large、The technical difficulty is high、The security risk is high、The operation requirements are high。

After the completion and operation of Hangzhou-Wenzhou Railway，Hangzhou will be closely linked.、Jin Yi、Three metropolitan areas of Wenzhou，To form a backbone inter-city rail transit line radiating from the core area of the Yangtze River Delta to the southeastern part of Zhejiang.，To build Zhejiang Province“One-hour traffic circle”It is of great significance。