Results 71 to 80 of about 774,410 (235)

Mechanistic insights across curing regimes for enzymatic and biopolymer‐optimized reinforcement in rock masses

Deep Underground Science and Engineering, EarlyView.
This study examines the effects of curing temperature on the mechanical behavior of underground rock masses treated with enzyme‐induced calcite precipitation (EICP) and an innovative biopolymer‐modified EICP (BP‐EICP). Abstract Biocementation is an innovative and sustainable technique for reinforcing weak and weathered rock masses in natural and ...
Mary C. Ngoma, Oladoyin Kolawole
wiley   +1 more source

Co‐Occurrence of Low and Very Low Frequency Earthquakes Explained From Dynamic Modeling

Geophysical Research Letters
Very low‐frequency earthquakes (VLFs) are characterized by longer source duration and smaller stress drop than regular earthquakes of similar magnitude. Recent studies have shown their frequent correlation with low‐frequency earthquakes (LFEs) on shared ...
Xueting Wei, Yuxiang Liu, Jiankuan Xu, Xiaofei Chen   +3 more
doaj   +1 more source

The complementary distribution of coseismic and slow-moving landslides along the transition between the Qinghai-Xizang plateau and Sichuan basin

Geodesy and Geodynamics
Landslides accompanying earthquakes are essential in landscape evolution along active fault zones. However, most studies focus on the rapid, catastrophic coseismic landslides with surface scars; the role of slow-moving landslides and their relation with ...
Lv Fu, Teng Wang
doaj   +1 more source

Slow Stick‐Slip Failure in Halite Gouge Caused by Brittle‐Plastic Fault Heterogeneity

Geochemistry, Geophysics, Geosystems, 2020
Slow earthquakes, including low‐frequency earthquakes and tremor, occur in the brittle‐ductile (plastic) transition zone on plate boundary faults. To understand how transitions in deformation mechanisms can influence seismic behavior, we conducted stick ...
Ken‐ichi Hirauchi, Yoshiaki Yoshida, Yasuo Yabe, Jun Muto   +3 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Important earthquakes in Southem Appennines, ltaly [PDF]

, 1988
How the soil reacts when it's subjected to an earthquake is a fact that cannot be omitted in planning. The research of these phenomena lets to locate seismogenetie areas and to define the different structural elements that feature regional and 10ca1 ...
Porfido, Sabina, Marturano, A., Esposito, E., Luongo , G.   +3 more
core   +1 more source

Slip weakening as a mechanism for slow earthquakes

, 2013
Slow slip forms part of the spectrum of fault behaviour between stable creep and destructive earthquakes. Slow slip occurs near the boundaries of large earthquake rupture zones and may sometimes trigger fast earthquakes.
Ikari M. J., Saffer D. M., Kopf A. J., Marone C. J.   +3 more
core   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

Ground-motion predictive equations for low-magnitude earthquakes in the Campania–Lucania area, Southern Italy [PDF]

, 2010
A key aspect of ground-shaking map calculation is represented by ground-motion predictive equations (GMPEs). In fact, ground-shaking maps obtained soon after an earthquake are calculated by integrating observed data and ground-motion estimates from GMPEs
A Emolo, V Convertito, L Cantore, Emolo, Antonio, Emolo, A., Convertito, V., Cantore, L., Convertito V., Cantore L.   +8 more
core   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source