泰州桩基工程特点、要点及施工工艺(素材).doc

泰州桩基工程特点、要点及施工工艺(素材)

一、设计要求
1、根据工程地质条件、各建构筑物上部荷载的情况及对沉降的要求，本工程将采用PHC管桩及浅层地基处理方法.
2、主厂房基础、汽机基础、锅炉炉架、集控楼、烟囱基础、煤系统等荷载较大，对沉降的控制标准较高，采用Φ600PHC130（110）桩；主厂房附属设备基础、炉后构筑物、电除尘、烟风道支架、风机基础、A排外构筑物、干煤棚、化水等采用500×110PHC管桩；循环水管沟、材料库、油泵房、推煤机库等辅助、附属建构筑物将采用水泥搅拌桩.
3、PHC管桩采用锤击沉桩法。入土深度约为50米和39米左右，达到持力层⑧粉细砂层和⑥层。
4、管桩各部位根据设计要求进行送桩，深度约2-7米。
二、工程特点
1、由于本工程地处长江滩塗地质条件
Taizhou foundations characteristics, elements and construction process (material)

First, the design requirements
1, according to geological conditions, the construction of the upper structure and the settlement of the case load requirements, the project will use the PHC pile and shallow foundations approach.
2, Main Building foundation, based turbine, boiler furnace frame, control building, chimney foundation, a larger coal system load, the higher on the settlement of the control standards, using Φ600PHC130 (110) pile; main plant ancillary equipment foundation, furnace after structures, ESP, Flue bracket, fan base, A xenophobic structures, dry coal shed, of water pipe with 500 × 110PHC; circulating water channel, material warehouse, oil pump, push coal hangar and other auxiliary, subsidiary structures built will use cement mixing pile.
3, PHC pile used Driven Piles. Embedded depth of about 50 meters and 39 meters to reach the bearing layer ⑧ ⑥ layer and layer of fine sand.
4, pipe design requirements for each part sent under the pile, the depth of about 2-7 meters.
Second, the engineering characteristics
1, as the project is located in the geological conditions of the Yangtze River beach