| 滨海大陆架特殊性岩土工程勘察钻探实践 |
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| 引用本文： | 李先经.滨海大陆架特殊性岩土工程勘察钻探实践[J].探矿工程,2018,45(4):65-68. |
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| 作者姓名： | 李先经 |
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| 作者单位： | 青岛地质工程勘察院 |
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| 摘 要： | 结合青岛万达游艇产业D区在滨海大陆架区域经人工抛石筑坝围堰，吹填淤泥、淤泥质土、砂土后经真空预压地基处理，再进行岩土工程勘察的实例，介绍了勘察钻探施工工艺和采取的相应技术措施。采用回转钻进、泥浆护壁钻进工艺，遇碎石、抛石地层先使用潜孔锤工程钻机和空压机采用跟管跟进、空气压缩锤冲击钻进的方式进行引孔。
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| 关 键 词： | 滨海大陆架区域 吹填土 真空预压地基处理 抛石 岩土工程勘察 跟管钻进 |
| 收稿时间： | 2018/1/23 0:00:00 |
| 修稿时间： | 2018/3/30 0:00:00 |
Drilling Practice of Special Geotechnical Engineering Exploration in the Coastal Continental Shelf |
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| LI Xian-jing.Drilling Practice of Special Geotechnical Engineering Exploration in the Coastal Continental Shelf[J].Exploration Engineering(Drilling & Tunneling),2018,45(4):65-68. |
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| Authors: | LI Xian-jing |
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| Institution: | Qingdao Geological Engineering Survey Institute |
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| Abstract: | This paper presents a special case in Qingdao, the geotechnical engineering exploration is carried out after damming cofferdam by artificial riprap in continental shelf region, hydraulic filling silt, silty soil and sandy soil and foundation treatment by vacuum preloading. The drilling construction technologies and corresponding technological measures are introduced. Rotary drilling and drilling by mud protection are adopted; in gravel and riprap formations, drilling with casing and air compression hammer percussive drilling technologies are used for the guide hole with DTH hammer engineering drill and air compressor. |
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| Keywords: | coastal continental shelf region dredger fill soil vacuum preloading foundation treatment riprap geotechnical engineering exploration drilling with casing |
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