- document
-
Ma, X. (author), Kirichek, Alex (author), Heller, H.K.J. (author), Draganov, D.S. (author)Fluid mud plays an important role in navigability in ports and waterways. Characterizing and monitoring the seismic properties of the fluid mud can help understand its geotechnical behavior. Estimation of the wave velocities in fluid mud with high accuracy and repeatability enables investigating the behavior of parameters like the yield stress...journal article 2022
- document
-
Colombo, Carla (author), Savalle, Nathanaël (author), Mehrotra, A.A. (author), Funari, Marco Francesco (author), Lourenço, Paulo B. (author)The present work aims to expand the knowledge of the behaviour of masonry corners, which are capital to obtain an integral seismic response in masonry buildings. In particular, the influence of the seismic load orientation (from π/4 to π/2) is investigated experimentally, numerically and analytically. Both units and interfaces have been...journal article 2022
- document
-
Naeije, M.C. (author), Simons, W.J.F. (author), Pradit, Siriporn (author), Niemnil, Sommart (author), Thongtham, Nalinee (author), Bin Mustafar, M.A. (author), Noppradit, Prakrit (author)Temporal changes in vertical land motion (VLM) in and around Phuket Island in southern Thailand following the great 2004 Sumatra–Andaman megathrust earthquake have impacted the relative sea-level change estimates based on tide-gauge (TG) records. To better monitor the VLM, two new continuous global navigation satellite system (GNSS) stations...journal article 2022
- document
-
Candela, Thibault (author), Pluymaekers, Maarten (author), Ampuero, Jean Paul (author), Van Wees, Jan Diederik (author), Buijze, Loes (author), Wassing, Brecht (author), Osinga, Sander (author), Grobbe, Niels (author), Muntendam-Bos, A.G. (author)The induced seismicity in the Groningen gas field, The Netherlands, presents contrasted spatio-temporal patterns between the central area and the south west area. Understanding the origin of this contrast requires a thorough assessment of two factors: (1) the stress development on the Groningen faults and (2) the frictional response of the...journal article 2022
- document
-
Qu, S. (author), Verschuur, D.J. (author)Traditional full-waveform inversion is a non-linear and ill-posed inversion problem. To reduce the non-linearity of it, joint migration inversion (joint migration inversion) was proposed as an alternative. Joint migration inversion tries to minimize the mismatch between measured and modelled reflection data. One key feature of joint migration...journal article 2022
- document
-
Novikov, A. (author), Voskov, D.V. (author), Khait, M. (author), Hajibeygi, H. (author), Jansen, J.D. (author)We present a scalable collocated Finite Volume Method (FVM) to simulate induced seismicity as a result of pore pressure changes. A discrete system is obtained based on a fully-implicit fully-coupled description of flow, elastic deformation, and contact mechanics at fault surfaces on a flexible unstructured mesh. The cell-centered collocated...journal article 2022
- document
-
Bianchi, S. (author), Ciurlanti, J. (author), Overend, M. (author), Pampanin, Stefano (author)Structural safety and environmental sustainability are major factors in investment decisions for building systems, but are rarely considered simultaneously. Recent research efforts have redressed this by developing assessment methodologies and technical solutions for integrated energy efficiency and seismic performance. These studies are...journal article 2022
- document
-
Toledo, Tania (author), Obermann, A. (author), Verdel, A. (author), Martins, Joana E. (author), Jousset, P. (author), Mortensen, A. K. (author), Erbas, Kemal (author), Krawczyk, C. M. (author)In autumn 2017 a network of 14 broadband seismic stations was deployed at the Theistareykir high temperature geothermal field (NE Iceland). This experiment was conducted as part of the current efforts to characterize the field's main structures, and possible short and long term stress variations due to the ongoing fluid injection and...journal article 2022
- document
-
Moldovan, I. A. (author), Apostol, A. (author), Muntean, A. (author), Ghita, C. (author), Toader, V. E. (author), Ambrosius, B.A.C. (author)In the last 300 years the window of time for two consecutive large and destructive intermediate-depth earthquakes in Vrancea (Romania) was between 36 and 102 years. An explanation for the larger window of time might be a release of stress produced by a slow-slip-event (SSE). In a vertical sinking slab slightly attached from the Earth’s crust...journal article 2022
- document
-
Mirra, M. (author), Ravenshorst, G.J.P. (author), de Vries, P.A. (author), Messali, F. (author)In the province of Groningen (NL), where human-induced earthquakes take place due to gas extraction, a large part of the building stock is composed of brick masonry walls and timber diaphragms. In this framework, timber-masonry connections play a crucial role in the global seismic response of the buildings, but their properties and structural...journal article 2022
- document
-
Naranjo, D. (author), Draganov, D.S. (author), Polychronopoulou, Katerina (author), De Bas, Mathieu (author), Weemstra, C. (author)In 2018, the geothermal project Nature's Heat started its operations to supply heat to 64 hectares of greenhouses in Kwintsheul, Netherlands. The operation involves the extraction and reinjection of geothermal fluids at a depth of about 2.4km. Several studies suggested that geothermal operations in these parts of The Netherlands are unlikely to...conference paper 2022
- document
-
Brackenhoff, J.A. (author), Thorbecke, J.W. (author), Meles, G.A. (author), Koehne, Victor (author), Barrera, Diego (author), Wapenaar, C.P.A. (author)We implement the 3D Marchenko equations to retrieve responses to virtual sources inside the subsurface. For this, we require reflection data at the surface of the Earth that contain no free-surface multiples and are densely sampled in space. The required 3D reflection data volume is very large and solving the Marchenko equations requires a...journal article 2022
- document
-
Muntendam-Bos, A.G. (author), Hoedeman, Gerco (author), Polychronopoulou, Katerina (author), Draganov, D.S. (author), Weemstra, C. (author), van der Zee, Wouter (author), Bakker, R.R. (author), Roest, J.C. (author)We present an overview of induced seismicity due to subsurface engineering in the Netherlands. Our overview includes events induced by gas extraction, underground gas storage, geothermal heat extraction, salt solution mining and post-mining water ingress. Compared to natural seismicity, induced events are usually small (magnitudes ≤ 4.0)....journal article 2022
- document
-
Schultz, Ryan (author), Muntendam-Bos, A.G. (author), Zhou, W. (author), Beroza, Gregory C. (author), Ellsworth, William L. (author)Prospects for geothermal energy in the Netherlands have renewed concerns around induced earthquakes. Risks from induced earthquakes are managed by traffic light protocols (TLPs), where the red-light is chosen as the stop-point before exceeding a tolerance to risk. Here, we simulate post-shut-in earthquake scenarios based on realistic...journal article 2022
- document
-
Pedone, Livio (author), Bianchi, S. (author), Giovinazzi, Sonia (author), Pampanin, Stefano (author)When dealing with seismic risk assessment at a large scale, the collection of relevant building data is still deemed a challenging task, often leading to limited building knowledge and, consequently, high uncertainties. Therefore, innovative yet standardized frameworks and adaptive tools are needed to support the seismic risk assessment of...journal article 2022
- document
-
Ruan, J. (author), Masfara, La ODE Marzujriban (author), Ghose, R. (author), Mulder, W.A. (author)Dynamic geomechanical modeling can generate the seismic wavefield caused by a fault rupture. In dynamic fault-rupture modeling, the source is considered to be finite, with a limited extent both in space and in time. This contrasts with the definition of a point source, which is generally assumed to explain the seismic wavefield caused by an...book chapter 2022
- document
-
Speelman, Bas (author)The submerged floating tunnel (SFT) is a conceptual idea that originates from the 19th century. The idea consists of a tunnel tube floating underwater where it is kept at a fixed depth by its buoyancy and by tethers that are anchored to the seabed and or by floating pontoons at the water surface. The tunnel is placed deep enough to avoid extreme...master thesis 2021
- document
-
Revelo Obando, Eddy Darío (author)The analysis of microseismic measurements acquired during borehole acquisition surveys is essential for a thorough understanding of the source mechanisms in hydraulic fracturing operations. Due to the injection of high-pressure fluids, induced fractures can produce seismic events of low magnitude that can be recorded and subsequently analyzed to...master thesis 2021
- document
-
Janjua, Mahad Nadeem Janjua (author)The recent discovery of the Zama field in offshore Sureste Basin in the southern Gulf of Mexico has piqued interest in the Mexican petroleum industry regarding the hydrocarbon potential within the region. In this study, a deposition-only thermal model was developed in an area of interest (AOI) in this region. Using structural input obtained from...master thesis 2021
- document
-
Kisa, Mehmet (author)Gas extractions are responsible for mostly all induced earthquakes in the Groningen area and this leads to damage of houses and buildings and issues regarding safety. Current strengthening measurements are mostly very visible. However, this can change by using the window frame as part of the structure, particularly interesting for Dutch houses...master thesis 2021