| 浅谈测井方法在工程勘察中的应用 |
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| 引用本文： | 建林青.浅谈测井方法在工程勘察中的应用[J].中国煤炭地质,2008(12):40-41. |
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| 作者姓名： | 建林青 |
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| 作者单位： | 河南省地矿局第十一地质队 |
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| 摘 要： | 地球物理测井应用于工程勘察中,能够较好地解决用钻探不易解决的问题,如有效判别薄夹层、寻找井旁隐伏断裂破碎带、判断孔内土层稳定性以及测定土层的速度等。其中自然伽马测井曲线在判定含砾粘土夹层及软弱薄粘土夹层等方面具有较高的准确性;声波、井径、自然γ、视电阻率等测井方法可有效查找井旁隐伏断裂破碎带,特别是声波测井曲线异常更为明显;另外跨孔实测剪切波速还可进行地基土加固效果检验。
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| 关 键 词： | 地球物理测井 破碎带 粘土夹 地基土 工程勘察 |
Application of Well Logging in Engineering Investigation |
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| Jian Linqing.Application of Well Logging in Engineering Investigation[J].Coal Geology of China,2008(12):40-41. |
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| Authors: | Jian Linqing |
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| Institution: | Jian Linqing (The Eleventh Geological Team, Henan Bureau of Geology and Mineral Resources, Shangqiu, Henan 476000) |
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| Abstract: | Applied geophysical logging in engineering investigation can bring issues not easy to be settled by drilling to close,such as thin intercalated bed distinguishing,borehole side hidden shattered fault zone seeking,borehole soil horizon stability judging and propagation velocity in soil horizon measuring.Of which,gamma-ray traces have higher accuracy in gravelly clay and soft thin clay intercalated beds determination;acoustic wave,caliper,gamma-ray and apparent resistivity can seek effectively borehole side shattered fault zone,especially on acoustic wave logging traces.Besides,trans-borehole shear wave velocity actual measurement can check up foundation soil consolidating effect. |
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| Keywords: | geophysical well logging fracture zone intercalated clay bed foundation soil engineering investigation |
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