The main pier of continuous cast-in-situ box girder is located on inclined rock and bare rock in the water.
Facing the adverse geological conditions encountered in the construction, the project department adopted the advanced rotary drilling and gas lift reverse circulation hole forming technology to ensure the construction quality and effectively reduce the construction cost.
According to the strict requirements of green environmental protection construction, the pile foundation construction of the project department adopts gas lift reverse circulation percussion drill, sand and gravel separator for curing treatment, BIM + Internet of things monitoring system and other means to avoid water pollution from the source.
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In addition, about 2.8km Taiping connecting line and 28.8km longwangdong connecting line will be built.
A total of 5 interchanges are set along the whole line, including Taiping, Weixin, longwangdong, Dongyueguan and cilixi (hub).
The planned construction period is 4 years.
Source: palm stone gate (please contact us if there is any infringement)..
3 super major bridge of Luzi expressway was completed.
On May 12, the last pile foundation pouring of Zaoshi reservoir No.
Source: the “Lu Ci” expressway of Lu Ci SangLong expressway of Hunan Railway starts from LuHong mountain at the junction of Shimen County and Wufeng Tujia Autonomous County, Yichang City, Hubei Province and ends at West Zhangjiashan, Cili County, Zhangjiajie City, with a total length of 80 kilometers and an estimated total investment of 14.42 billion yuan.
It has the characteristics of large height difference, steep terrain, water depth and so on.
It has great construction difficulty, high risk and strict environmental protection requirements.
3 super major bridge constructed by China railway transportation investment management and China Railway Shanghai Bureau No.
3 super major bridge.
3 super major bridge of Zaoshi reservoir is 1249m long and the riverbed is V-shaped.
The main line adopts the standard construction of four lane expressway, with a design speed of 100km / h and a subgrade width of 26m.
Simultaneously build necessary traffic works and facilities along the line (including traffic police, road administration base, etc.).
Two interworking connecting lines with a total length of 32 km will be built simultaneously.
According to the characteristics of the riverbed, the project department adopts the technical measures of inclined rock smashing and leveling + double row brake piers + geological drilling and anchoring, which effectively solves the problem of poor stability of steel pipe piles of steel trestle under the conditions of deep water, slope and bare rock.
The project was officially approved by the provincial development and Reform Commission on May 21, 2020, and the bidding procedure was started immediately; The bidding work shall be completed by the end of July; On August 31, the “furnace Ci” section of G59 Expressway held a grand commencement ceremony in Cili; On October 9, Shimen section of Luci Expressway held a mobilization meeting for land acquisition and demolition in Shengli village, Datong mountain.
As the first bridge with fully completed pile foundation along the whole line of Luci expressway, the No.
5 company was successfully completed, marking the completion of the construction of 168 pile foundations of Zaoshi reservoir No.
