Towards a rapid assessment of highway slope disasters by using multidisciplinary techniques     

Weng  Meng-Chia  Lin  Cheng-Han  Shiu  Wen-Jie  Chao  Wei-An  Chiu  Chia-Chi  Lee  Ching-Fang  Huang  Wei-Kai  Yang  Che-Ming 《Landslides》2022,19(3):687-701

Mega-earthquakes and extreme climate events accompanied by intrinsic fragile geology lead to numerous landslides along mountain highways in Taiwan, causing enormous life and economic losses. In this study, a system for rapid slope disaster information integration and assessment is proposed with the aim of providing information on landslide occurrence, failure mechanisms, and subsequent landslide-affected areas to the highway authority rapidly. The functionality of the proposed system is deployed into three units: (1) geohazard rapid report (GeoPORT I), (2) multidisciplinary geological survey report (GeoPORT II), and (3) site-specific landslide simulation report (GeoPORT III). After landslide occurrence, the seismology-based monitoring network rapidly provides the initial slope disaster information, including preliminary location, event magnitude, earthquake activity, and source dynamics, within an hour. Within 3 days of the landslide, a multidisciplinary geological survey is conducted to collect high-precision topographical, geological, and remote-sensing data to determine the possible failure mechanism. After integrating the aforementioned information, a full-scale three-dimensional landslide simulation based on the discrete element method is performed within 10 days to reveal the failure process and to identify the areas potentially affected by subsequent disasters through scenario modeling. Overall, the proposed system can promptly provide comprehensive and objective information to relevant authorities after the event occurrence for hazard assessment. The proposed system was validated using a landslide event in the Central Cross-Island Highway of Taiwan.

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Failure mechanism analysis of rainfall-induced landslide at Pingguang stream in Taiwan: mapping,investigation, and numerical simulation     

Chia-Ming Lo  Ching-Fang Lee  Wei-Kai Huang 《Environmental Earth Sciences》2016,75(21):1422

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Pulsation analysis of the high amplitude δ Scuti star CW Serpentis     

Jia-Shu Niu  Jian-Ning Fu  Wei-Kai Zong 《中国天文和天体物理学报》2013,(10):1181-1188

Time-series photometric observations were made for the high amplitudeδScuti star CW Ser between 2011 and 2012 at the Xinglong Station of National Astronomical Observatories,Chinese Academy of Sciences.After performing the frequency analysis of the light curves,we confirmed the fundamental frequency of f=5.28677 c d 1,together with seven harmonics of the fundamental frequency,which are newly detected.No additional frequencies were detected.The O C diagram,produced with the 21 newly determined times of maximum light combined with those provided in the literature,helps to obtain a new ephemeris formula of the times of maximum light with the pulsation period of 0.189150355±0.000000003 d.  相似文献   

Earthquake-induced deep-seated landslide and landscape evolution process at Hungtsaiping,Nantou County,Taiwan     

Chia-Ming Lo  Wei-Kai Huang  Ming-Lang Lin 《Environmental Earth Sciences》2016,75(8):645

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