Earthquake site response on hard rock - empirical study

机译：坚硬岩石的地震现场响应-实证研究

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A bedrock site on a high plateau near the escarpment top in the seismically active Dead Sea rift system, showed an amplification by a factor of 5, between 2 and 3 Hz, due mainly to an EW oscillation of the NS topographic feature. Mount Masada, also located on the Dead Sea rift, exhibited amplifications near 1.3 Hz. by a factor of 3.5 for EW motion and 2 for NS motion. The weathered and cracked granite bedrock near the Red Sea port of Eilat showed amplifications by a factor of about 4 in the frequency range of 6 to 7 Hz, which is within the range of engineering interest as regards low-rise buildings. P ecorded ground motion in a hard rock tunnel near the Dead Sea shore showed amplification by a factor 2, near 3 Hz. We explain this effect as being due to the interference between incident (upgoing) and surface-reflected (downgoing) waves.

机译：在地震活跃的死海裂谷系统中，靠近悬崖顶部的高高原上的基岩部位，放大了5倍，在2到3 Hz之间，这主要是由于NS地形特征的EW振荡所致。也位于死海裂谷上的马萨达山（Mosada Masada）表现出1.3 Hz附近的放大率。 EW运动的系数是3.5，NS运动的系数是2。埃拉特红海港口附近的风化破碎的花岗岩基岩在6至7 Hz的频率范围内放大了约4倍，这在低层建筑方面属于工程学范围。在死海沿岸的坚硬岩石隧道中的P地震动显示放大了2倍，接近3 Hz。我们解释这种影响是由于入射波（上行波）和表面反射波（下行波）之间的干扰引起的。

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《Fifth International Conference on Analysis of Discontinuous Deformation, ICADD-5 Oct 6-10, 2002 Beer Sheva, Israel》|2002年|p.133-144|共12页
会议地点 Beer Sheva(IL);Beer Sheva(IL)
作者
Y. Zaslavsky; A. Shapira; A.A. Arzi;
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作者单位

Seismology Division, Geophysical Institute of Israel, Lod, Israel;

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原文格式 PDF
正文语种 eng
中图分类建筑科学;
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Earthquake site response on hard rock - empirical study

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