• / 7
  • 下载费用:10 金币  

Bored Piling Method Statement 灌注桩施工方案.doc

关 键 词:
Bored Piling Method Statement 灌注桩施工方案.doc
资源描述:
Method Statement for Bored Pile1Table of Contents1.0 General2.0 Setting out3.0 Drilling4.0 Piles Termination5.0 Clearing of Pile Base 6.0 Installation of Reinforcement7.0 Placing of Concrete8.0 Testing of Concrete9.0 Possible Problems Encountered10.0 Noise And Vibration11.0 Hazard Analysis12.0 Method of Locating And Avoidance of Utility Services13.0 Bored Pile Record SheetsMethod Statement for Bored Pile21.0 GeneralThe general sequence for bored pile works is shown as below: -Set Out Pile PositonDril To About 4.5mProced DrilingFinal DepthCleanig Pile BaseInstal Stel CageInstal Tremie PipeConcret Pile ToRquird LvlExtract Temporay CasingBack-fil Empty BoreIf RequiredBore HoleStabiltyEncounter RockRecord Al Soil SampleAt Regular IntervlDril Using Rock TolsInstal CasingNoYesYesNoOrder ConcretFix Spacers2 cubes at age of 7 days2 cubes at age of 28 days2 cubes as standby cubes or at age of 56 days (if required)9.0 Possible Problems EncounteredDue to variable nature of soil, there may be some possible problems encountered. Some of the common problems are: -a) Present of obstructionFor shallow obstruction that is within the reach of a hydraulic excavator, it shall be dug out with the hydraulic excavator. Otherwise, assuming that the obstruction is a boulder, chiseling is normally adopted.b) Sudden loss of support fluidAs a precaution against the unlikely event of collapse water level is always maintained at 0.5m below casing. In the unlikely event of the sudden loss of Method Statement for Bored Pile6support fluid, the boring will be immediately stopped and back-filled with clayey material or lean mix concrete until the loss of support fluid is stopped.After remedial measures have been undertaken, boring will resume.c) Verticality of excavationThe verticality is maintained by checking the Kelly bar against a plumb bob at two major directions. Should verticality be out of tolerance, the bored hole is back-filled and the verticality will be rechecked for re-boring.d) Defectiv
展开阅读全文
  微传网所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
0条评论

还可以输入200字符

暂无评论,赶快抢占沙发吧。

关于本文
本文标题:Bored Piling Method Statement 灌注桩施工方案.doc
链接地址:https://www.weizhuannet.com/p-9828344.html
微传网是一个办公文档、学习资料下载的在线文档分享平台!

微传网博客

网站资源均来自网络,如有侵权,请联系客服删除!

 网站客服QQ:80879498  会员QQ群:727456886

copyright@ 2018-2028 微传网络工作室版权所有

     经营许可证编号:冀ICP备18006529号-1 ,公安局备案号:13028102000124

收起
展开