| 超深全岩地质复合接力钻孔灌注桩施工 |
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| 引用本文： | 武坤伦. 超深全岩地质复合接力钻孔灌注桩施工[J]. 价值工程, 2014, 0(1): 113-114 |
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| 作者姓名： | 武坤伦 |
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| 作者单位： | 河北建设勘察研究院有限公司,石家庄050000 |
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| 摘 要： | 本文介绍了流溪河特大桥钻孔灌注桩施工的实例,并针对钻孔过程中出现的护筒底口漏浆,超深全岩地质孔垂直度易超标,基岩过硬对钻具破坏严重,直径2.5m超深桩灌注等问题进行了探讨。
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| 关 键 词： | 二次对中 底口漏浆 垂直度 掉钻 混凝土灌注 |
Ultra-deep Total Rock Geology Composite Relay Bored Pile Construction |
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| WU Kun-lun. Ultra-deep Total Rock Geology Composite Relay Bored Pile Construction[J]. Value Engineering, 2014, 0(1): 113-114 |
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| Authors: | WU Kun-lun |
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| Affiliation: | WU Kun-lun ( Hebei Construction Survey and Research Institute Co. Ltd., Shijiazhuang 050000, China ) |
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| Abstract: | The construction example of the extra-large bridge bored pile construction in Xiliu River is introduced in this article. Problems including retaining cylinder bottom slurry leakage, easy standard exceeding of the extra-large total rock geological hole verticality and hard rock＇s damage to the drilling tools and of 2.5m diameter extra-deep perfusion pile pouring are discussed in this paper. |
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| Keywords: | second time centering bottom slurry leakage verticality drills concrete spouting |
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