| 复杂地质条件下化学泥浆护壁旋挖高效成孔技术 |
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| 引用本文： | 高英杰. 复杂地质条件下化学泥浆护壁旋挖高效成孔技术[J]. 铁道建筑技术, 2014, 0(3): 63-66 |
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| 作者姓名： | 高英杰 |
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| 作者单位： | 中铁二十二局集团第四工程有限公司,河北高碑店074000 |
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| 摘 要： | 我国现阶段新型大跨桥梁快速兴建,对桥梁基础施工技术提出了更高的要求。在较厚的杂填土层下伏砂砾石层、岩层的复杂地质条件下,钻孔灌注桩采用化学泥浆护壁,大功率入岩旋挖钻机钻孔的高效成孔技术施工可确保桩基质量,缩短工期,降低成本,利于环境保护。
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| 关 键 词： | 杂填土层 砂砾石层 岩层 化学泥浆护壁 旋挖钻机 高效成孔 |
The Efficient Rotary Drilling Technology for Chemical Mud Wall Under Complicated Geological Conditions |
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| Gao Yingjie. The Efficient Rotary Drilling Technology for Chemical Mud Wall Under Complicated Geological Conditions[J]. Railway Construction Technology, 2014, 0(3): 63-66 |
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| Authors: | Gao Yingjie |
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| Affiliation: | Gao Yingjie (China Railway 22^nd Bureau Group Co. Ltd. , Gaobeidian 074000, China) |
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| Abstract: | The rapid construction of large span bridge in the country imposes higher demand on the infrastructure technolo-gy. Under complicated geological conditions of gravel and rock under thick miscellaneous fill layer, chemical mud wall is used for the bored pile. High power rotary drilling technologies can ensure the quality of piling foundation, shorten con- struction period, reduce cost and protect environment. |
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| Keywords: | layer of miscellaneous soil gravel layer rock layer chemical mud wall rotary drilling rig high-efficiency hole |
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