| 竖井井壁漂浮下沉过程的力学行为 |
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| 引用本文： | 程荷兰,王梦恕,聂庆科,梁金国.竖井井壁漂浮下沉过程的力学行为[J].北方交通大学学报,2012(1):48-51. |
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| 作者姓名： | 程荷兰 王梦恕 聂庆科 梁金国 |
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| 作者单位： | [1]北京交通大学土木建筑工程学院,北京100044 [2]河北建设勘察研究院有限公司,河北石家庄050031 |
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| 基金项目： | 国家自然科学基金资助项目（50778012） |
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| 摘 要： | 对竖井井壁在漂浮下沉过程中的受力与变形进行了研究．根据钻井法施工工艺，分析了井壁在漂浮下沉过程中的外载，给出了注入配重水的控制方程，并利用叠加法，首次得到漂浮下沉过程中井壁任意一点的应力一应变解析表达式．计算结果表明，竖井井壁的环向应变和竖向应变有明显的“双折线”现象，与实测结果一致，证明本文计算理论的合理性，为井壁结构设计提供理论参考依据．
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| 关 键 词： | 钻井法 竖井 漂浮下沉 受力分析 |
Study on mechanical behavior of shaft drilling liner during floating and dropping |
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| CHENG Helan,WANG Mengshu,NIE Qingke,LIANG Jinguo.Study on mechanical behavior of shaft drilling liner during floating and dropping[J].Journal of Northern Jiaotong University,2012(1):48-51. |
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| Authors: | CHENG Helan WANG Mengshu NIE Qingke LIANG Jinguo |
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| Institution: | ( School of Civil Engineering, Beij ing Jiaotong University, Beijing 100044, China; 2. Hebei Research Institute of Construction ＆ Geotechnical Investigation co Ltd, Shijiazhuang Hebei 050031, China) |
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| Abstract: | The loading and deformation of the shaft liner during floating and dropping are studied. Based on the shaft drilling technology, the loads applied to the liner during floating and dropping are analyzed and the control equation of the filled water is calculated. With superposition method, the analytic expressions of the stress and strain at any position of the liner are obtained. It is found that, in accordance with the measured data, the circumferential strain and vertical strain both manifest;＋＂double broken line＂ phenomenon. The results proved the rationality of the theoretical calculation method presented in this paper, and provided a theoretical support for the design of the shaft drilling liner. |
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| Keywords: | shaft drilling method shaft floating and dropping mechanics analysis |
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