土建地基与基础施工工艺-下(国外英文资料).doc

土建地基与基础施工工艺-下(国外英文资料) 3.11 during the winter, when the pile is difficult in frozen soil area, the frozen soil should be excavated or thawed. quality standard 4.1 ensure the project: 4.1.1 reinforced concrete precast pile quality must comply with the design requirements and construction specifications, and have the factory certificate. The elevation or penetration of the 4.1.2 pile and the joint treatment of the pile must comply with the design requirements and construction specifications. 4.2 allow deviation items, see table 2-5. Allowable deviation of reinforced concrete precast piles table 2-5 The allowable deviation of sub project (mm) test method The center line of the vertical base beam is 100 Along the center line of the base beam, 150 The number of 2 piles is 1~3 or single row piles 100 The number of 3 piles is 4~16 d/3 Edge pile d/3 Intermediate pile d/2 Note: D is the diameter of the pile or the length of the section. Finished product protection 5.1 piles shall reach 70% of the design strength and shall be lifted up to 100% to transport. When lifting and transporting 5.2 piles, the hanging points shall be in accordance with the design requirements and shall be stable and shall not be damaged. The stacking of 5.3 piles shall meet the following requirements: 5.3.1 the site shall be level and firm and shall not cause uneven subsidence. 5.3.2 the position of the wooden mat and the crane shall be the same and shall be kept in the same plane. The piles of the same pile number of the 5.3.3 shall be piled together, while the pile tip shall be at one end. 5.3.4 multi cushion wood should be aligned up and down, and the bottom wood should be widened properly. Stacking layer generally should not exceed 4 layers. 5.4 properly protect the axis and elevation of the pile foundation and control the pile. Not displacement due to impact and vibration. 5.5 if the geological data is not in conformity with the data provided during the piling, the construction shall be stopped an