Milling Mall Method Construction Case: Water Distribution Main Replacement Work

It has been adopted for construction where there is a possibility of wooden stakes with a diameter of 300 mm existing in the pipeline section.

This is an introduction to the construction results of the replacement work for the water supply main (800mm and 500mm) between the vicinity of 1-chome, Nihonbashi Horitakemachi, Chuo Ward, and the vicinity of Nihonbashi Hisamatsu-cho, Chuo Ward. Initially, there was a possibility of wooden piles with a diameter of 300mm existing in the push pipe section; however, as a result of the construction, there were no wooden piles with a diameter of 300mm. 【Construction Case】 ■ Project Name: Replacement work for the water supply main (800mm and 500mm) between the vicinity of 1-chome, Nihonbashi Horitakemachi, and the vicinity of Nihonbashi Hisamatsu-cho, Chuo Ward ■ Client: Tokyo Metropolitan Waterworks Bureau ■ Contractor: PS Mitsubishi Corporation ■ Pipe Diameter: 1200mm ■ Pushing Length: 36.628m and 133.936m ■ Soil Type: Sandy silt ■ N Value/Gravel Rate/Maximum Gravel Diameter: N=1 to 4, G=0%, φmax=0mm ■ Construction Period: May 2015 to July 2015 (2.5 months) ■ Type of Obstacle: Insurance method, no obstacles *For more details, please refer to the PDF document or feel free to contact us.

Site and ground investigationCivil Engineering MethodSpecial Construction Method