盐城至南通高速公路海安一施工标段公路粉喷桩施工组织设计.doc

盐城至南通高速公路海安一施工标段位于海安县大公镇和洋蛮河镇境内，本标段路线起点接盐通高速公路（南通市境）东台三施工标段终点（桩号为K71+958.764），起点桩号为K72+038，路线经大公镇东，在K73+082.500处跨越红星河（等外航道），在K74+696处跨越大公-海安农场公路，在大公镇和洋蛮河镇交界处（K77+017.500）跨越北凌河，经洋蛮河镇东，在K81+645.500处跨越洋蛮河（韩洋）至李堡公路，终点在K82+500处接海安二施工标段。本段全线长10.462km。
本标段粉喷桩处理软土地基工程，位于长江河谷平原工程地质区，主要不良地质条件为软土和砂土液化。为了减小工后沉降量，保证路基稳定，解决结构物处跳车等病害，设计采用粉喷桩对软土地基进行处理。处理段落为K73+643-K76+815，粉喷桩共计14498根，总长93512米。
Yancheng to Nantong expressway construction sections in Hoi Hoi an town and the Ocean County Grand Man Town in the territory of the tenders received route from Salt Expressway (Nantong City in) end of the East China and Taiwan, construction sections (Stake for the K71 +958.764) , from Stake to K72 +038, Route, the Grand Duke Town, across the Red Division in the K73 +082.500 Galaxy (substandard Channel), the K74 +696 office across the Grand - Hai Farm Road, in the town and the ocean Man Town in Grand junction (K77 +017.500) across North Dalinghe by Yang Man Town in the East, across the ocean in the K81 +645.500 Office Man River (Han-yang) to Fort Lee Road, ending at K82 +500 Office Access MSC 2 construction sections. Total length of this paragraph 10.462km.
The tenders DJM soft foundation engineering, engineering geology in the Yangtze River valley plain area, the main adverse geological conditions for the soft soil and sand liquefaction. In order to reduce the settlement after construction to ensure embankment stability, solution structures such as the Jump disease, designed to deal with Pile on the soft ground. Treatment paragraphs K73 +643- K76 +815, a total of 14 498 DJM, length 93,512 meters.