石油修井机地锚桩振动特性与抗拔承载力研究  

Study on Vibration Characteristics and Uplift Resistance of Anchor Piles for Oil Workover Rig

作　　者：冯志鹏[1] 常玉连 付海龙[1] 邹龙庆[1] 王殿舒 

机构地区：[1]东北石油大学机械科学与工程学院 [2]中国石油新疆油田分公司第二采油厂

出　　处：《化工机械》2015年第6期798-801,820,共5页Chemical Engineering & Machinery

基　　金：黑龙江省自然科学基金资助项目(E201335);黑龙江省教育厅科学技术研究重点项目(12521Z007);东北石油大学青年科学基金项目(ky120221)

摘　　要：地锚桩承载力直接关系到陆地油田修井机井架承载的安全性,超深井、加密井等特殊井况对地锚桩承载力要求更高。运用等截面抗拔桩承载理论,剖析了修井工况下地锚桩桩土相互作用机理,通过建立桩土竖向振动力学模型,分析了桩土共同作用体的耦合振动特征,并提出了利用动刚度测试间接获得地锚桩抗拔极限载荷的方法。通过对全尺寸地锚桩承载力现场试验,获得了砂土、粘土和低洼湿土的极限承载力,并利用直接拔桩验证了测试结果,误差在5%以内。The anchor pile＇ s load capacity relates directly to the uplift resistance of the oil workover rig der- rick, and the special wells like the extradeep well and interspaced well set higher demands for the pile capaci- ty, Through making use of the theory of constant section anti-lift anchor piles, the interaction mechanism be-tween the soil and anchor piles was analyzed, including the e model for the anchor pile and the soil to investigate their couF stiffness tested to get limi size anchor pile＇ s load c wet earth were separately stays below 5%. t load of the anchor pile indirectly was stablishment of vertical vibration＇ s mechanic led vibration characteristics. Having dynamic proposed. Through the experiment on the full- apacity, the ultimate bearing capacity of the anchor plies in the sandy soil, clay and obtained and verified with pile-pulling operation to show that these results＇ error

关 键 词：修井机 地锚桩 抗拔载荷 动刚度 侧摩阻力 振动特性 

分 类 号：TE935[石油与天然气工程—石油机械设备]