地质资源与工程:英文版最新文献_第2页

The IGN MEMS Accelerographs Record the First Accelerograms in Different Locations in the Lorca City IGN MEMS加速度计记录了洛尔卡市不同地点的第一个加速度计

地质资源与工程:英文版 Pub Date : 2019-06-28 DOI: 10.17265/2328-2193/2019.03.001

Jose B. Bravo, J. Blanco, J. Alcalde

{"title":"The IGN MEMS Accelerographs Record the First Accelerograms in Different Locations in the Lorca City","authors":"Jose B. Bravo, J. Blanco, J. Alcalde","doi":"10.17265/2328-2193/2019.03.001","DOIUrl":"https://doi.org/10.17265/2328-2193/2019.03.001","url":null,"abstract":"A recent earthquake (13 December 2018, Mag. 3.5) has allowed the recording 11 accelerograms from a network microelectromechanical systems (MEMS) low-cost accelerograph Silex. The National Geographic Institute of Spain (IGN) has built this kind of equipment and has installed in the Lorca City. The epicenter of the earthquake is only approximately 6 km from Lorca. This is important because an earthquake hit this city on 11th May, 2011. This earthquake caused nine deaths, more than 400 injured people and a loss estimated about $1 billion. We have also got records from two commercial accelerograhs GeoSig GMSPlus and GeoSig GSR-18 in two different stations in Lorca and we have been able to compare these signals with signals from Silex. We have studied carefully the records from places where peak accelerations are noticeably higher than in other locations. We have seen that the waveforms of these records have different features and we think that the effect sites are very important. Finally we have also compared the peak acceleration with macroseismic intensity obtained from questionnaries. We have checked there is no clear correlation between instrumental acceleration and macroseismic intensity at least for earthquake with small magnitudes.","PeriodicalId":66051,"journal":{"name":"地质资源与工程:英文版","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49453454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Landslide Vulnerable Zones Based on Engineering Geological Assessment, Case Study: Wonotopo Area, Gebang District, Purworejo Regency, Central Java, Indonesia 基于工程地质评估的滑坡脆弱区，案例研究：印度尼西亚中爪哇省Purworejo县Gebang区Wonotopo地区

地质资源与工程:英文版 Pub Date : 2019-06-28 DOI: 10.17265/2328-2193/2019.03.002

S. Kusumayudha, Delvianus Kaesmetan, H. Purwanto

{"title":"Landslide Vulnerable Zones Based on Engineering Geological Assessment, Case Study: Wonotopo Area, Gebang District, Purworejo Regency, Central Java, Indonesia","authors":"S. Kusumayudha, Delvianus Kaesmetan, H. Purwanto","doi":"10.17265/2328-2193/2019.03.002","DOIUrl":"https://doi.org/10.17265/2328-2193/2019.03.002","url":null,"abstract":"Landslide is one of the geological disasters that frequently occur on the natural slopes, often threatening community of the adjacent area. Therefore, it is necessary to hold engineering geological research and assessment in disaster-prone regions such as Gebang district of Purworejo Regency, Central Java Province, Indonesia. This research was conducted to determine and analyze the type of mass movements, factor of safety, potential landslide areas, vulnerable zonation, factors influencing the stability of the slope, and to propose the disaster mitigation recommendation. The methods applied in the research are surface geological mapping, physical soil-rock properties testing, engineering geological assessment and analysis, and Regulation of Minister of Public Works of Republic of Indonesia number 22/PRT/M/2007, on Guidelines to Spatial Planning for Landslide Disaster Areas. To create information on the threats of land movements, a map on landslide potential zonation is developed by considering seven important aspects including: slope inclination, soil conditions, slope constituents, rainfall, slope water condition, seismicity, and vegetation or land use. The results show that, the landslide prone zone of the study area can be divided into 2 types, namely type B and type C. Landslide potential zone of type B involves high level of vulnerability and moderate level of vulnerability. Meanwhile, the landslide potential zone of type C consists of high level of vulnerability and low level of vulnerability.","PeriodicalId":66051,"journal":{"name":"地质资源与工程:英文版","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48338549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Classification and Friction Angle from CPT in Gneissic Residual Soil of Brazil 巴西片麻岩残积土CPT分类及摩擦角分析

地质资源与工程:英文版 Pub Date : 2019-06-28 DOI: 10.17265/2328-2193/2019.03.003

Fábio Fernandes da Silva, César S. Godoi Li, Fernanda Simoni Schuch

{"title":"Classification and Friction Angle from CPT in Gneissic Residual Soil of Brazil","authors":"Fábio Fernandes da Silva, César S. Godoi Li, Fernanda Simoni Schuch","doi":"10.17265/2328-2193/2019.03.003","DOIUrl":"https://doi.org/10.17265/2328-2193/2019.03.003","url":null,"abstract":"The current research presents the results of experiment in situ and laboratory research with the goal of determining the friction angle in residual soil using the CPT (cone penetration test). This experimental research was completed in an area of study, composed of slopes and plateaus, located in the southern region of Brazil, in the Santo Amaro da Imperatriz municipality. An SPT (standard penetration test) and CPT in situ test investigation campaign was conducted and collected from deformed and undeformed samples for physical characterization and triaxial tests. The results made it possible to classify the soils analyzed according to the unified methodology proposed by Robertson that, based on studies provide friction angle values along the hole’s depth, and obtained through the CPT. The friction angle values obtained in the CPT indicated a well-defined trend of high values at the surface, which decrease in the middle of the soil mass and increase again near the healthy rock. The friction angles estimated by the CPT were overestimated when compared to laboratory estimations. This occurrence is explained by the fact that the measured resistance of the field tests is embedded in the cementation and suction plots.","PeriodicalId":66051,"journal":{"name":"地质资源与工程:英文版","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47331170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis on the Influence Factors of Directional Controlled Blasting Assisted by Water Jet 水射流辅助定向控制爆破影响因素分析

地质资源与工程:英文版 Pub Date : 2019-04-28 DOI: 10.17265/2328-2193/2019.02.002

SU Dengfeng

{"title":"Analysis on the Influence Factors of Directional Controlled Blasting Assisted by Water Jet","authors":"SU Dengfeng","doi":"10.17265/2328-2193/2019.02.002","DOIUrl":"https://doi.org/10.17265/2328-2193/2019.02.002","url":null,"abstract":"Directional expansion of blast-induced crack is always the common purpose for directional controlled blasting. As it has been demonstrated that slot which located at the side of blasthole can function as a guidance for blast energy, let the stress concentration at the direction of water jet slot. Therefore, it is meaningful to investigate the influence factors of directional controlled blasting with water jet assistance. In this paper, the influence on the guiding characteristics of the water jet slot during the propagation of blast-induced crack by the change of length-width of slot was simulated by ANSYS/LS-DYNA. The results indicate that if the distance from blasthole exceeds the limit, the influence on the guiding characteristics by the change length-width of the slot will get smaller and smaller, and when the width of water jet slot remains the same, the stress shows a monotonic increasing trend with the increase of the length of water jet slot, and the stress reaches its maximum value when the length-width of water jet slot is 0.075m×0.0070m. Moreover, based on stress wave theory and rock fracture theory, the influential mechanism for both the law of transmission of stress wave and of crack propagation by natural fracture and water jet slot were analyzed. The criteria for blast-induced crack propagation were established.","PeriodicalId":66051,"journal":{"name":"地质资源与工程:英文版","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43310903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Characteristic Features of Lapis Lazuli from Different Provenances, Revised by µXRF, ESEM, PGAA and PIXE 不同产地青金石的特征特征，用µXRF、ESEM、PGAA和pxe订正

地质资源与工程:英文版 Pub Date : 2019-04-28 DOI: 10.17265/2328-2193/2019.02.003

R. Nöller, I. Feldmann, Z. Kasztovszky, Z. Szőkefalvi-Nagy, I. Kovács

引用次数: 1

Technical and Economic Aspects and Experience from 6 Years of Operating the Technology Using the Waste Heat from the Exhaust Gases of Heat Sources and 3 Years of Operating a Heating Plant in an Autonomous, Island Regime 技术和经济方面的问题以及6年使用热源废气余热的技术和3年在一个自治的岛屿制度下运营供热厂的经验

地质资源与工程:英文版 Pub Date : 2019-04-28 DOI: 10.17265/2328-2193/2019.02.001

Imrich Discantiny

引用次数: 0

Extension of Giurgiu Port on Lower Danube 多瑙河下游的久尔久港扩建工程

地质资源与工程:英文版 Pub Date : 2019-02-28 DOI: 10.17265/2328-2193/2019.01.003

Radu-Constantin Cazamir