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    SLOPE PROTECTION AT HA LONG – VAN DON HIGHWAY

    Ngô Kiên

    19/09/2019

     

    Ha Long – Van Don Highway has a length of 54 km running through the mountains and hills connecting the new airport with a total investment of 12,000 billion VNDs.
    – After completed, Ha Long – Van Don highway shall l be important in linking between special zones and the key economic areas such as Ha Long, Hai Phong, Hanoi. Travel time between Hanoi and Van Don is only about 2.5 hours.
    – This route is through hills and mountains, complex terrain that must be designed to high speed, can run at speeds of 100 km / h. Therefore, for the “softest” road when running high speed, the constractors have to excavate a lot of soil and rock. It is estimated that millions of cubic meters of soil and rock have been excavated. Sawing the mountain, bridging is ensured timely progress. It is not to mention that by going through many hills and mountains, the slope protection works also causes the contractor to do a Incalculable works.

    I. Slope protection at Km9+900 – Km10+060

    1. Time for building: 05/2018 ÷ 09/2018;
    2. Pack XDCT02: Km8+000 ÷ Km14+000, Ha Long – Van Don Highway.
    3. Solution protect: Soil nail D32, L=6m + Frame beam + Spraying concrete C18;

    II. Slope protection at Km13+640 – Km13+840

    1. Time for building: 03/2018 ÷ 04/2018;
    2. Pack XDCT02: Km8+000 ÷ Km14+000, Ha Long – Van Don Highway;
    3. Solution protect: Soil nail D32, L=6m + Frame beam + Spraying concrete C18;
    4. Square: 2.054 m2.

    III. Slope protection at Km27+950 (trái tuyến)

    1. Time for building: 01/2019 ÷ 05/2019;
    2. Pack XDCT04 (Km22+000 ÷ Km32+500), Ha Long – Van Don Highway;
    3. Protect solution: Prestressed nail 4*12.7mm, L = 20-40m + Frame beam C35 + Spraying concrete C18;
    4. Square: 2.244 m2.

    IV. Slope protection at Km30+524 ÷ Km30+772,37 (left slide) and Km31+324 ÷ Km31+300 (right slide)

    1. Time for building: 6/2019 – now
    2. Slope Protection: Lưới thép cường độ cao + đinh đá D32 L=(4m÷6m); Hàng rào chống đá lăn (tương đương mức năng lượng: 1000KJ, 2000KJ);
    3. Square: 5.620 m2.

    #baovemaidoc #halong-vandon

     

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