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倾斜桩顶推和注浆组合纠偏施工工法
作者单位:浙江大学软弱土与环境土工教育部重点实验室 杭州310027(朱奎,徐日庆),温州大学 浙江温州325000(周鹏飞)
摘    要:介绍了倾斜桩顶推和注浆组合纠偏施工工法特点、施工工艺、主要材料及机具和质量控制措施。该施工方法采用高压水冲孔手段减少倾斜桩被动土压力,借助反力支承系统,通过千斤项提供水平推力在倾斜桩正向进行顶推,使倾斜桩复位,然后在桩周进行注浆,使桩周扰动土得到加固。工程实例表明该方法加固效果显著,经济效益突出。

关 键 词:倾斜桩  纠偏  顶推  注浆

Construction Method for Inclination Rectification of Inclined Piles Combined with Jacking and Grouting
Authors:Zhu Kui
Abstract:The construction characteristics, the construction craft, the main materials, the machines and the quality control measures for the inclination rectification combined with the jacking and grouting are introduced. The said method reduces the passive earth pressure through the high-pressured water. The jack provides the horizontal thrust which push against the inclined pile with the aid of the reaction supporting system.After turning over the correct position, the grouting which reinforces the disturbed soil is carried out on the periphery of piles. The engineering practice indicates that the reinforcement effect is remarkable and the economic benefit is prominent.
Keywords:inclined pile  inclination rectification  jacking  grouting
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