|
|
|
| Treating Methods for the Displacement of Reinforcing Cage and Pile Breaking in Bored and Cast—in—place Pile Work |
| SHEN Zhong一wu |
| China Overseas Engineering Group Co．Ltd，Beijing 1 00048，China |
|
|
|
|
Abstract Research purposes: Bored and cast—in—place pile is widely used in construction and it belongs to concealed work，but sometimes the quality problems or quality accidents occur in the work．The experience and statistic data show the displace of reinforcing cage is the quality problem that the most probably occurs and the pile breaking is the quality accident that the most probably Occurs in bored and cast—in—place pile work．80 this paper researches the treating methods for the displacement of reinforcing cage and pile breaking in bored and cast—in—place pile work．
Research conclusions: The researches and applications show the”Floating Method”and”Rolling Pad Method”can effectively solve the problem of the displacement of reinforcing cage with the characteristics of fast and easy operation and no adding investment．The”Duct Fetching Grout Method”can be used for the pile breaking in the cause of grouting， but it is necessary to fabricate the grout collector before the pile foundation construction．The twice as much can be accomplished with half the effect if the condition is possible．In this way，the accident possibility can be reduced much．
|
|
Received: 18 March 2009
|
|
|
|
|
|
[1] JTJ 041-2000,公路桥涵施工技术规范[S]
[2] 李智,石健,张明辉.钻孔灌注桩施工质量事故及防治措 施[J].北方交通, 2007(6): 63 -65.
[3] 段新胜,顾湘.桩基工程[M ].北京:中国地质大学出版 社, 1994.
|
|
|
|
2009, Vol. 26 
