| 搅拌桩-喷锚支护技术在深基坑支护中的应用 |
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| 引用本文： | 徐永政,王元汉,周芳.搅拌桩-喷锚支护技术在深基坑支护中的应用[J].岩石力学与工程学报,2004,23(Z1):4649-4652. |
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| 作者姓名： | 徐永政 王元汉 周芳 |
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| 作者单位： | 1. 华中科技大学土木工程学院,武汉,430074
2. 黄州市建设委员会,黄州,438000 |
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| 摘 要： | 搅拌桩-喷锚支护是一种有效的基坑支护型式,它可用于土层条件较差、变形控制严格、安全性要求高的深基坑工程中。该支护方式中,锚杆为主要受力构件,水泥土搅拌桩为辅助受力构件,可起到提高土体抗剪强度、增强基坑整体稳定性、限制和减小土体变形的作用。探讨了搅拌桩-喷锚支护整体稳定性的计算方法,将水泥土搅拌桩等效为一层抗滑加固土,按喷锚支护模型计算喷锚支护整体稳定性。
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| 关 键 词： | 土力学 深基坑 喷锚支护 搅拌桩 |
| 文章编号： | 1000-6915(2004)增1-4649-04 |
| 修稿时间： | 2004年4月10日 |
APPLICATION OF COMBINED SUPPORT TECHNIQUE OF MIXING PILE AND BOLT-SHOTCRETE IN DEEP FOUNDATION PIT |
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| Xu Yongzheng,Wang Yuanhan,Zhou Fang.APPLICATION OF COMBINED SUPPORT TECHNIQUE OF MIXING PILE AND BOLT-SHOTCRETE IN DEEP FOUNDATION PIT[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(Z1):4649-4652. |
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| Authors: | Xu Yongzheng Wang Yuanhan Zhou Fang |
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| Affiliation: | Xu Yongzheng1,Wang Yuanhan1,Zhou Fang2 |
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| Abstract: | The combined support technique of mixing pile and bolt-shotcrete in deep foundation pits is introduced.It can be used in demanding and complicated conditions.In the supporting structure system,the bolt-shotcrete is the primary load-bearing member,and the mixing pile is the secondary load-bearing member.It can be used to increase the shear strength of soils,control the deformation of soil and improve the integral stability.The calculation method for integral stability of foundation pits supported with this technique is proposed,in which mixing pile is treated as a layer of reinforced anti-sliding soil.Therefore,the integral stability can be calculated according to the computation model of the composite bolt-shotcrete support. |
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| Keywords: | soil mechanics deep foundation pit bolt-shotcrete support mixing pile |
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