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| Application in Deep Stratum of Soil Investigation Using Long-Period Microtremor |
| YU Kai-1, CHE Ai-Lan-1, FENG Shao-Kong-2, 杉Shan-Chang-Zhi-2 |
| (1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Chuo Kaihatsu Corp., Saitamaken, 3320035, Japan) |
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Abstract The long period microtremor observation was performed on soft soil area in Shanghai city. The FFT spectrum analysis and H/V method were used to evaluate the spatial variations of long period microtremor and its spectrum stability and clarify the depth of deposits and its horizontal distributions. Comparing the inversion results with the known borehole data, the signal of long period microtremor is good and it is very appropriate to deeply expand the investigations in Shanghai city,the signal of microtrmor in the long period area is steady; the peak of H/V spectrum is obvious and shows regular variation characteristic which reveals the depth of soil in Shanghai city is between 200 m and 300 m.
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Received: 05 November 2010
Published: 30 May 2011
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| [1] |
WU Zhi-Jian-1, 2 , ZENG Li-Feng-1, WANG Lan-Min-1, 2 , YU Kai-3, CHEN Tuo-1. Application of Microtremor Method in Shear Wave Velocity Structure Survey at Loess Regions[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2011, 45(05): 696-700. |
| [2] |
WANG Huan-1, CHE Ai-Lan-1, GE Xiu-Run-1, CHEN Fu-Hai-2. Application of the Method for Seismic Stability of High Rock Slope[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2011, 45(05): 706-710. |
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