Results 91 to 100 of about 1,432,265 (307)

Spatiotemporal Deformation Characteristics of Flat-roof Straight-wall Mined Station Closely Under-passing Existing Metro Stations

Chengshi guidao jiaotong yanjiu
ObjectiveIn close-proximity projects such as newly built metro stations closely under-passing existing lines, the existing metro stations may experience significant settlement under construction disturbance, thereby affecting structural and line ...
Chaoyang ZONG, Zhaogeng CHEN, Xiyuan WANG, Wei WANG, Haoran LAI   +4 more
doaj   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Measurement of radon concentration in metro stations of Istanbul, Türkiye

Applied Radiation and Isotopes
The main objective of this study was to determine the levels of radon concentrations in different metro lines in Istanbul. Measurements were conducted in underground stations of five distinct metro lines: M1A, M1B, M3, M4 and M6. Radon activity concentration (RAC) values were determined by means of measurements.
Ayhan Akkaş, Hatice Baş Mor, Berna Ataksor, Nesli Bingöldağ, Fatma Duhan, Şule Köseoğlu, A. Sibel Altunbayrak   +6 more
openaire   +3 more sources

Interjurisdictional Capitalization of a New Metro Line on Housing Values [PDF]

Many governments continue constructing new subway lines with the goal of reducing congestion and pollution in large cities. Besides the potential global effects on reducing negative externalities in the city, there are some local positive effects in ...
Claudio Agostini, Gastón Palmucci
core  

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

Deep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu, Huanling Wang, Yong Zhou, Zhen Wang   +3 more
wiley   +1 more source

PENERAPAN MODEL PEMBELAJARAN BERBASIS LINGKUNGAN UNTUK MENGEMBANGKAN KETERAMPILAN PROSES SAINS DAN MENINGKATKAN HASIL BELAJAR KOGNITIF PADA SISWA KELAS X SMA MUHAMMADIYAH 1 METRO TAHUN PELAJARAN 2011/2012 [PDF]

, 2012
This study aimed to: 1) develop students' science process skills class X2 SMA Muhammadiyah 1 Metro. 2) enhance students' cognitive learning outcomes X2 class SMA Muhammadiyah 1 Metro. Subjects in this study were students SMA Muhammadiyah 1 X2-class Metro
Ayun Nadiroh, Nadiroh, Ayun, Susanto, Agus, Agus Susanto   +3 more
core   +1 more source

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source

Research on the construction and application of a safety perception evaluation system for metro station underground spaces from a female perspective

Journal of Asian Architecture and Building Engineering
With the acceleration of urbanization, the underground spaces of metro station areas have become a crucial component of urban infrastructure, and concerns about women’s safety perception are gaining increasing attention.
Yajie Xu, Qixiang Yan, Tao Fang, Xing Zhang, Jia Yao   +4 more
doaj   +1 more source

Electro Acoustic Analysis in Metro Stations

, 2019
Proceedings of the International Symposium on Room Acoustics : 15 to 17 September 2019 in Amsterdam, Netherlands : ISRA 2019 Amsterdam / proceedings editor: Margriet Lautenbach, Ingo Witew, Diemer de Vries, Maarten Hornikx International Symposium on Room Acoustics, ISRA 2019, Amsterdam, Netherlands, 15 Sep 2019 - 17 Sep 2019; Heerde : Nederlands ...
Yilmaztürk, L., Pervane, S.
openaire   +2 more sources