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深基坑工程支护桩侵限切除及加固处理研究

房江锋, 严树, 刘国栋, 赵鑫波, 李静, 王传龙. 2024. 深基坑工程支护桩侵限切除及加固处理研究. 钻探工程, 51(1): 147-153. doi: 10.12143/j.ztgc.2024.01.020
引用本文: 房江锋, 严树, 刘国栋, 赵鑫波, 李静, 王传龙. 2024. 深基坑工程支护桩侵限切除及加固处理研究. 钻探工程, 51(1): 147-153. doi: 10.12143/j.ztgc.2024.01.020
FANG Jiangfeng, YAN Shu, LIU Guodong, ZHAO Xinbo, LI Jing and WANG Chuanlong, . 2024. Study on the invasion limit excision and support piles reinforcement in deep foundation pit. DRILLING ENGINEERING, 51(1): 147-153. doi: 10.12143/j.ztgc.2024.01.020
Citation: FANG Jiangfeng, YAN Shu, LIU Guodong, ZHAO Xinbo, LI Jing and WANG Chuanlong, . 2024. Study on the invasion limit excision and support piles reinforcement in deep foundation pit. DRILLING ENGINEERING, 51(1): 147-153. doi: 10.12143/j.ztgc.2024.01.020

深基坑工程支护桩侵限切除及加固处理研究

详细信息
    作者简介: 房江锋,男,汉族,1984年生,高级工程师,岩土工程专业,硕士,主要从事深基坑、桩基础施工工作,广东省深圳市南山区桃园街道怡然天地居4A301,fangjf@foxmail.com。

Study on the invasion limit excision and support piles reinforcement in deep foundation pit

  • 咬合桩在深基坑工程中已得到广泛应用,受到地质条件、施工组织、操作能力等因素的影响,支护桩侵限事故经常发生。本文通过纤维模型有限元计算程序,计算了侵限处理前、后支护桩的受弯承载力,同时结合桩身深层水平位移监测反分析结果,论证了采用粘钢加固方法处理侵限支护桩的可行性。利用基坑的空间效应,采用分序跳桩施工对侵限支护桩进行切割和加固,基坑处于安全稳定状态;对加固处理后的监测成果及桩身受力情况进行分析,结果显示截面承受的弯矩值小于截面受弯承载力。本项目加固施工取得了良好的效果,有效解决了基坑支护桩侵限的处理难题,可为同类项目提供借鉴。
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出版历程
收稿日期:  2023-05-24
修回日期:  2023-09-27

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