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发明授权
CN101619574B 预应力抗拔锚桩及施工方法 失效 - 权利终止

  • 专利标题： 预应力抗拔锚桩及施工方法
  • 专利标题（英）： Prestress pulling resistant anchor pile and constructing method thereof
  • 申请号： CN200910161845.8
    申请日： 2009-07-28
  • 公开(公告)号： CN101619574B
    公开(公告)日： 2011-04-13
  • 发明人: 朱奎
  • 申请人： 朱奎
  • 申请人地址： 浙江省温州市瓯海区景山组团11幢302室
  • 专利权人： 朱奎
  • 当前专利权人： 朱奎
  • 当前专利权人地址： 浙江省温州市瓯海区景山组团11幢302室
  • 主分类号： E02D5/54
  • IPC分类号： E02D5/54 ;  E02D5/58 ;  E02D31/12 ;  C04B28/00
预应力抗拔锚桩及施工方法
摘要：
本发明公开一种预应力抗拔锚桩及施工方法，其特征是包括以下步骤：(1)水泥搅拌桩施工；(2)预钻孔，水泥搅拌桩施工完毕后立即下放小孔径钻具进行预钻，钻具喷射泥浆，钻具在搅拌桩中心充分搅拌；(3)锚孔钻进，锚杆钻机在水泥搅拌桩施工完毕12～14h后钻进，钻进速度为200mm/min；(4)洗孔；(5)锚杆下孔；(6)注浆，第一次注浆量以注满孔为准，充盈系数达1.2以上；待第一次注浆体初凝强度达5.0MPa后，即可用高压注浆管进行第二次高压注浆；(7)张拉锁定，采用二次张拉法；(8)穿锚；(9)封锚；(10)防腐处理。本发明实用性强，社会效益好。
摘要（英）：

The invention discloses a prestress pulling resistant anchor pile and a constructing method thereof. The constructing method is characterized by comprising the following steps: (1) constructing a cement stirring pile; (2) pre-drilling: after cement stirring pile construction is finished, a small-bore diameter driller is immediately taken to pre-drill, and the driller jets slurry and fully stirs in the center of the stirring pile; (3) drilling an anchor hole: an anchor rod driller drills after 12 hours to 14 hours of the cement stirring pile construction finishing, and the drilling speed is 200 mm/min; (4) milling a hole; (5) leading an anchor rod to penetrate through the hole; (6) grouting: the first grouting amount is based on filing up the hole, and the fullness coefficient reaches morethan 1.2; after the initial setting strength of first slurry reaches 5.0MPa, the secondary high-pressure grouting can be carried out by a high-pressure grouting pipe; (7) locking stretching by a secondary stretching method; (8) leading an anchor to penetrate; (9) sealing the anchor; and (10) carrying out anticorrosive processing. The invention has high practicability and favorable social benefits.

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