Determination of Local Site Soil Conditions by Microtremor Measurements for Sustainable Buildings

2018 ◽  
pp. 763-775
Author(s):  
Bilal Ozaslan ◽  
Murat Emre Hasal ◽  
Ozan Subasi ◽  
Recep Iyisan ◽  
Hiroaki Yamanaka ◽  
...  
Keyword(s):  
Soil Conditions ◽  
Sustainable Buildings ◽  
Local Site ◽  
Microtremor Measurements

Distribution of ground-motion intensity inferred from questionnaire survey, earthquake recordings, and microtremor measurements—A case study in Christchurch, New Zealand, during the 1994 arthurs pass earthquake

1997 ◽  
Vol 87 (2) ◽  
pp. 356-369
Author(s):  
Takumi Toshinawa ◽  
J. John Taber ◽  
John B. Berrill
Keyword(s):  
New Zealand ◽  
Ground Motion ◽  
Intensity Data ◽  
Amplification Factors ◽  
Areal Distribution ◽  
Local Site ◽  
Geological Conditions ◽  
The City ◽  
Microtremor Measurements

Abstract The areal distribution of seismic ground-motion intensity in the city of Christchurch, New Zealand, during the 1994 Arthurs Pass Earthquake (ML 6.6) was evaluated using an intensity questionnaire together with local site amplifications inferred from seismic recordings and microtremors. In order to estimate the intensity in parts of the city where no intensity data were available, intensity data were compared to relative levels of shaking determined from both weak-motion and microtremor recordings. Weak ground-motion amplification factors were determined using ratios of ground accelerations at five sediment sites with respect to a rock site. Microtremor amplification factors were determined from horizontal-to-vertical spectral ratios at a 1-km spacing throughout the city. A positive correlation between weak-motion and microtremor amplification factors allowed extrapolation of microtremor amplification to estimated MM intensity (EMMI). EMMI ranged from 3 to 6 and was consistent with the questionnaire intensity and geological conditions and showed detailed information on the areal distribution of ground-motion intensity in the city.

Determination of Buildings Period and Vulnerability Index Using Microtremor Measurements

2015 ◽  
Author(s):  
E. Timur ◽  
S. Ozicer ◽  
C. Sari ◽  
O. Uyanik
Keyword(s):  
Vulnerability Index ◽  
Microtremor Measurements

Luminescence of Eu3+ as a probe for the determination of the local site symmetry in β-Ca3(PO4)2-related structures

CrystEngComm ◽  
2019 ◽  
Vol 21 (35) ◽  
pp. 5235-5242 ◽  
Author(s):  
Dina V. Deyneko ◽  
Ivan V. Nikiforov ◽  
Dmitry A. Spassky ◽  
Yuri Yu. Dikhtyar ◽  
Sergey M. Aksenov ◽  
...  
Keyword(s):  
Dielectric Spectroscopy ◽  
Site Symmetry ◽  
X Ray Diffraction ◽  
X Ray ◽  
Local Site ◽  
Sensitive Determination

The study reveals opportunity of using the emission of Eu3+, together with X-ray diffraction, and dielectric spectroscopy, for sensitive determination of the symmetry β-TCP related structures.

scholarly journals Determination of Spatial and Temporal Variability of Soil Hydraulic Conductivity for Urban Runoff Modelling

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 941 ◽  
Author(s):  
Matej Radinja ◽  
Ines Vidmar ◽  
Nataša Atanasova ◽  
Matjaž Mikoš ◽  
Mojca Šraj
Keyword(s):  
Hydraulic Conductivity ◽  
Temporal Variability ◽  
Water Repellency ◽  
Infiltration Rate ◽  
Control Measures ◽  
Soil Conditions ◽  
Spatial And Temporal Variability ◽  
Soil Hydraulic Conductivity ◽  
Soil Hydraulic

Soil hydraulic conductivity has a direct influence on infiltration rate, which is of great importance for modelling and design of surface runoff and stormwater control measures. In this study, three measuring techniques for determination of soil hydraulic conductivity were compared in an urban catchment in Ljubljana, Slovenia. Double ring (DRI) and dual head infiltrometer (DHI) were applied to measure saturated hydraulic conductivity (Ks) and mini disk infiltrometer (MDI) was applied to measure unsaturated hydraulic conductivity (K), which was recalculated in Ks in order to compare the results. Results showed significant differences between investigated techniques, namely DHI showed 6.8 times higher values of Ks in comparison to DRI. On the other hand, Ks values obtained by MDI and DRI exhibited the lowest difference. MDI measurements in 12 locations of the small plot pointed to the spatial variability of K ranging between 73%–89% as well as to temporal variability within a single location of 27%–99%. Additionally, a reduction of K caused by the effect of drought-induced water repellency was observed. Moreover, results indicate that hydrological models could be enhanced using different scenarios by employing a range of K values based on soil conditions.

Steel Pipe Installation in Poor Soil Conditions: A Determination of Optimum Trench Width

2017 ◽  
Author(s):  
Robert J. Card ◽  
Brent Keil
Keyword(s):  
Steel Pipe ◽  
Soil Conditions ◽  
Poor Soil ◽  
Trench Width

scholarly journals USING OF BIOLOGICAL PREPARATIONS FOR ADAPTATION OF IN VITRO POTATO PLANTS TO IN VIVO CONDITIONS

2012 ◽  
Vol 14 ◽  
pp. 147-155
Author(s):  
I.V. Demchuk ◽  
I.V Volkova ◽  
A.M. Pustovoyt
Keyword(s):  
Adaptive Capacity ◽  
Plant Productivity ◽  
Soil Conditions ◽  
Potato Plants ◽  
Biological Preparation

The possibility of improving the adaptive capacity of in vitro potato plants to soil conditions under the use of biological preparations like Phytodoctor, Mikosan, Optim-humus, Chaetomic and Kladostim was investigated. After determination of auxin, cytokinin, gibberellic activity of their solutions, the effect of biological preparations on the growth and productivity of potato microplants upon their transfer to the in vivo conditions was studied. Among the investigated solutions the most bioassay activity was observed for biological preparation Optimhumus, while Phytodoctor, Kladostim, Chaetomic, Mikosan had higher effect on plant productivity.

scholarly journals Local Site Effects Evaluation for Gyobyu Lifeline using Microtremor Measurements

2018 ◽  
Vol Volume-3 (Issue-1) ◽  
pp. 86-92
Author(s):  
Aye Aye Mar ◽  
Kyaw Kyaw ◽  
Keyword(s):  
Site Effects ◽  
Local Site Effects ◽  
Local Site ◽  
Microtremor Measurements

scholarly journals Modeling the weight of a grab bucket for digging

2018 ◽  
Vol 251 ◽  
pp. 04009
Author(s):  
Ilya Tsipurskiy
Keyword(s):  
Mass Function ◽  
Analytical Dependence ◽  
Soil Conditions ◽  
Practical Recommendation ◽  
Underground Cavity ◽  
Optimal Weight ◽  
Deep Underground ◽  
Different Depths ◽  
Geotechnical Problems

Modern construction of facilities of various types is accompanied by huge volumes of excavation works. The construction of surface and subsurface facilities requires the solution of a number of complex geotechnical problems, including those related to the creation of a deep underground cavity and a volume of hundreds of thousands of cubic meters. For soils of different categories of complexity of reservoir management at different depths, in some cases up to 50 meters, rope grab buckets are used. The article is devoted to the possibility of preliminary determination of the weight of an excavator grab bucket for excavation in developing the environment by creating various types of facilities. To determine the weight of the bucket, the existing empirical dependencies and the modeling method are used, which allows choosing the optimal weight of the excavator grab bucket for specific soil conditions. In this case, unlike the existing methods, the analytical calculations conducted do not only use the mass function of the soil developed, but also take into account the specificity of its resistivity to digging. Analytical dependence is given to determine the weight of the grab bucket for construction and practical recommendation of its preliminary choice for specific excavation works.

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