装配式智能调平锚桩静载试验设备研发与应用
作者:
作者单位:

(1.河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京210098;2.河海大学土木与交通学院,江苏 南京210098 )

作者简介:

吴跃东(1969—),男,教授,博士,主要从事软土地基处理与岩土工程测试技术研究。E-mail:hhuwyd@163.com

中图分类号:

TU473.1

基金项目:

国家自然科学基金项目(52378337);中央高校基本科研业务费专项资金项目(B200204032,B200204036)


Development and application of static load test equipment for prefabricated intelligent leveling anchor pile
Author:
Affiliation:

(1.Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;2.College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China )

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    摘要:

    针对堆载法碎石桩承载力检测方法的局限性,通过引入智能调平系统,研发了一种适用于碎石桩承载力检测的装配式智能调平锚桩静载试验设备。该设备将锚索埋设于试桩周围的锚桩中,可提供锚桩法试验过程中所需的抗拔力;智能调平系统能自动调整反力梁角度,可有效防止其发生倾斜。工程现场试验结果表明,采用该设备进行的锚桩法静载试验与传统堆载法静载试验得到的试桩沉降变化规律一致,误差合理,试桩承载力满足工程设计要求;经锚索拉拔后的锚桩密实度并未大幅下降,其承载力仍满足工程设计要求;采用该设备进行锚桩法静载试验能缩短设备搭设时间,减少试验所需场地,可有效提高试验的安全性及稳定性。

    Abstract:

    In view of the limitations in detecting the bearing capacity of gravel piles using the stacking method, a prefabricated intelligent leveling anchor pile static load test equipment suitable for detecting the bearing capacity of gravel piles has been developed by integrating an intelligent leveling system. The equipment capable of burying the anchor cable in the anchor pile around the test pile can provide pull-out force during the static load testing process. The intelligent leveling system is capable of automatically adjusting the angle of the reaction beam, effectively preventing it from tilting. The results of the field test demonstrate that the static load testing performed by the equipment for the anchor pile method aligns with the settlement change law determined from the static load test using the traditional stacking method. The error identified is reasonable, and the bearing capacity obtained meets the engineering design requirements. The compactness of the anchor pile after the anchor cable is pulled out does not significantly decrease, and its bearing capacity still meets the engineering design requirements. The use of this equipment for static load testing can effectively shorten the time required for equipment erection, reduce the site area needed for testing, and improve both the safety and stability of the test.

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吴跃东,毛伟,刘坚,等.装配式智能调平锚桩静载试验设备研发与应用[J].河海大学学报(自然科学版),2025,53(2):71-77.(WU Yuedong, MAO Wei, LIU Jian, et al. Development and application of static load test equipment for prefabricated intelligent leveling anchor pile[J]. Journal of Hohai University (Natural Sciences),2025,53(2):71-77.(in Chinese))

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历史
  • 收稿日期:2024-10-21
  • 在线发布日期: 2025-03-26