Alexandr Manevich

Russian Academy of Sciences | RAS · Geophysical Center of the Russian Academy of Sciences

The authors propose a field control of GNSS equipment precision characteristics methodology for recording sub-centimeter movements of the Earth`s surface at geodynamic observations of tectonically moderate areas activity. The factors influencing the accuracy of GNSS measurements are analyzed. The theoretical aspects of developing measuring equipmen...

This article presents the seismotectonic consequences of the strong Maule earthquake in Chile, which occurred on February 27, 2010 at Mw = 8.8. The consequences are considered as a manifestation of a large-scale fragment of the general seismotectonic process on the western edge of the South American plate (Chilean sector). Our study shows that mani...

This paper reports results of mathematical modeling applied to the stress and strain in epicentral zones before and after the large earthquakes that occurred on June 22, 2002 in the Qazvin Province, northwestern Iran (Mw = 6.4) and the Gujarat, India earthquake of January 26, 2001 (M = 6.9). The modeling relied on a method for calculating stress an...

The paper presents the results from upgrading the satellite geodetic network of the geodynamic test area of the Nizhne-Kansky massif using bedrock pin geodetic centers in 2021–2022. A brief review is given of the historical experience of using bedrock pin centers in developing satellite geodetic networks at geodynamic test sites, in particular, in...

The article presents the following: the results of deformation monitoring by GNSS tools at the FSUE Radon radioactive waste disposal site (Moscow oblast); a brief history of the development of the geodynamic observation network at the industrial site of Radon. the results and geodynamic interpretation of GNSS observations of Earth surface movements...

In 2021, in the Yeniseisky region of the Nizhnekansk Massif in the Krasnoyarsk region, construction of an underground research laboratory (URL) was started to justify safety of high-level radioactive waste disposal. The URL investigations aimed to assess preservation of isolation properties of rock mass exposed to long-active rock pressure, tectoni...

In view of the fact that shear deformation is predominant in the focal mechanism of a tectonic earthquake, the study analyzed the accumulation of total shear deformation in triangles of the New Zealand GNSS network. The data of daily determinations of coordinates in the interval 2008/01/01–2021/06/21 were used [1]. The accumulated total shear strai...

The accumulation of horizontal dilatation strain in the triangles of the New Zealand GNSS network is analyzed. The data of daily determinations of coordinates in the interval 2008/01/01–2021/06/21 [1] were used. The accumulated dilatation strains were calculated and digital and graphical models of their spatial distribution were constructed. The re...

The accumulation of vertical displacements and horizontal vectors of internal displacements at permanent points of the New Zealand GNSS network is analyzed. The data of daily determinations of coordinates in the interval 2008/01/01–2021/06/21 were used [1]. The accumulated displacements were calculated, digital and graphical models of their spatial...

В работе представлены результаты математического моделирования напряженно-деформированного состояния эпицентральных зон до и после сильных землетрясений 22 июня 2002 г. на северо-западе Ирана в области Казвин с Mw = 6.4 и Гуджаратского землетрясения 26 января 2001 г. в Индии с M = 6.9. При моделировании использовался метод расчета напряженно-деформ...

A geodynamic model of the northern part of the Nizhnekanskii massif is presented, developed in connection with the need to assess the safety of the insulating properties of geological formations during the disposal of high-level radioactive waste. The model is based on experimental data from GNSS observations of recent movements of the Earth’s crus...

This article gives an overview of available methods and techniques for geodynamic monitoring, such as the high-precision geometric re-leveling, high-precision linear-angular constructions, high-precision distance measurements, laser scanning, global navigation satellite systems, laser interferometers and strainmeters, radar satellite interferometry...

In this study, we developed a new approach for feature engineering in geosciences. The main focus of this study was feature engineering based on the implementation of the dynamic activity index (MDAI) as a function of the anomaly of the spatial distribution of data, using systems and discrete mathematical analysis. The methodology for calculating M...

The paper considers geodetic observations focused on modern earth crust movements and rates of its deformations carried out over the period from 2010 to 2022 in the siting area of an underground research facility (URF) in the Nizhnekanskiy rock mass and summarizes their findings. The study demonstrates that the developed GNSS observation method can...

The results of geodynamic interpretation of the results of GNSS observations of presentday movements and modeling of the stress-strain state of the upper part of the Earth’s crust in the area of the construction of an underground research laboratory to substantiate the safety of disposal of high-level long-lived radioactive waste in granite-gneiss...

In 2019, the construction of an underground research laboratory for justifying the geoecological safety of the disposal of highly active radioactive waste within the granite-gneiss rocks of the Nizhne-Kansky massif (Krasnoyarsk krai) began. To estimate and predict the geodynamic stability of tectonic crustal blocks, a specialized database on the ba...

The aim of the work is the substantiate the development of a GNSS deformation monitoring network at the site of the underground research laboratory, for estimating the safety of underground isolation of radioactive waste in the Nizhne-Kansk massif. The article overviews the international experience of GNSS observations of recent crustal movements i...

The paper presents the results of modeling the stress–strain state of the epicentral zone of the strong crustal Hanshin–Awaji earthquake, which occurred in the area of Kobe (Japan) on January 17, 1995, with a magnitude M of 6.9. In this work the author’s method for modelling and analyzing the stress–strain state of the epicentral zones of crustal e...

Within the boundaries of the Nizhne-Kansk granite-gneiss massif, which directly borders on the Atamanovskiy branch of the Yenisei Ridge, the building of an underground research laboratory for validating the safety of disposal of high-level radioactive waste began in 2019. In 2010, researchers of the Mining and Chemical Combine at Zheleznogorsk and...

This article describes the methodological aspects and some results of the assessment and prediction of the geodynamic stability of the geological environment as applied to the problem of ensuring the safety of underground isolation of high-level radioactive waste (HLRW) in the geological formations of the Nizhnekansky massif, Krasnoyarsk Region. Fo...

The procedures of GNSS-equipment accuracy testing are considered in the aspect of the matter of predicting the earth’s crust movements and deformations when substantiating the geoecological safety of highly radioactive waste disposal in geological formations. For verifi cation, the 1st category reference basis of the Federal Scientifi c-Technical C...

The paper presents the results of GNSS observations, provided by the authors in 2010-2019 years, in the zone of contact of tectonic structures of the Siberian platform, West-Siberian plate and West-Sayan orogenic area. We presented the first time assessment of the velocities of modern horizontal movements and the structural-kinematic model of block...

The procedures of GNSS-equipment accuracy testing are considered in the aspect of the matter of predicting the earth’s crust movements and deformations when substantiating the geoecological safety of highly radioactive waste disposal in geological formations. For verification, the 1st category reference basis of the Federal Scientific-Technical Cen...

Представлены результаты ГНСС-измерений, проведенных авторами в 2010–2019 гг. в зоне контакта тектонических структур Сибирской платформы, Западно-Сибирской плиты и Западно-Саянской орогенной области. Впервые представлена оценка средних скоростей современных горизонтальных движений и построена структурно-кинематическая модель блоковых движений в южно...

An M 7.4 earthquake occurred near the town of Izmit on August 17, 1999 causing enormous casualties and economic losses: over 15000 victims and several thousand irreparably damaged buildings and structures. The earthquake produced a set of fractures and fissures in the ground extending for more than 70 km from the Gulf of Izmit, with a new tectonic...

The paper represents international and domestic experience in the development and implementation of landslide control systems at mining enterprises. We established that collection of data in these systems is haphazard and this fact fails to meet modern trends in mining and construction activity. The complex factor analysis revealed basic design pri...

The current standard criteria for horizontal strains at locations of nuclear power objects are set without regard to distances and observation times. Accordingly, the reference hazardous strain can either be overestimated or underestimated in a test scale of a region. This deteriorates reliability of the engineering safety criteria for satellite ob...

The authors have analyzed the influence of tectonic faults located in the external stress field on the process of destruction of structural tectonic blocks. The article describes the impact of changes in the regional field of tectonic stresses on the geoecological safety of a deep radioactive waste disposal facility in the Nizhnekansky massif (the...

Сформулированы основные направления и задачи геомеханических исследований в подземной исследовательской лаборатории. Предложен комплекс геомеханических методов и экспериментов, которые могут быть положены в основу разработки детальной программы исследований и паспортов натурных экспериментов, направленных на оценку и прогноз длительной сохранности...

1 Геофизический центр РАН, Москва 2 Институт физики Земли им. О. Ю. Шмидта РАН, Москва Статья поступила в редакцию 26 февраля 2019 г В статье рассматриваются геодинамические аспекты исследований в связи с началом строительства под-земной исследовательской лаборатории (ПИЛ) на участке «Енисейский» Нижнеканского массива. В рамках современных представ...

This paper describes the analysis of numerical simulation results of the stress-strain state of Leninsky coal deposit area (Kuzbass) before and after allotment mining of mining fields specified in this article. The analysis of the influence of coal mining on the stress-strain state of rocks is performed taking into account the fault tectonics of t...

This article describes the results of modeling the stress-strain state of the epicentral earthquake zone, which occurred on December 26, 2003 in the southeast of Iran in the province of Kerman (Bam), before and after the formation of the fault. It is shown that the main earthquake shock is located in the zone of high intensity of stresses, and the...

Big data formation and using has become one of the most important directions in the XXI century technology development. This led to approaches revision for modeling objects and processes, as well as predicting their state with changing environmental factors and operating conditions. In the article we have discussed the Big data accumulation opportu...

The main directions and tasks of geomechanical research in an underground research laboratory are formulated. A set of geomechanical methods and experiments that can be used as the basis for the development of a detailed research program and passports of field experiments is proposed. This will help to assess and predict the long-term preservation...

In this research are presented methodological aspects of the using of artificial neural networks for the tasks of geodynamic zoning of territories are considered when choosing locations for environmentally hazardous objects (using the example of nuclear fuel cycle facilities). To overcome the uncertainty caused by the complexity of analyzing inform...

Underground mining of coal deposits has a significant impact on the host geology. Wednesday. In many respects, the zone of influence of underground developments on the geo-environment is determined by the technology of managing the roof of the coal seam. At the moment, on the absolute majority of coal mines, the technology of roof management is com...

This paper reports the results of numerical modeling of the stress-strain state of the epicentral area before and after the August 24, 2014 earthquake in Napa, California, USA, compared to calculated data obtained in instrumental studies in the dilatation areas based on GPS observation results. Numerical model-ing has made it possible to calculate...

The results of modeling the stress-strain state for the epicentral zone of the earthquake that occurred on December 26, 2003 in the southeast of Iran in the city of Bam, Kerman province, before and after the rupture are presented. It is shown that the source of the earthquake is located in the zone of high stresses, whereas the emerged rupture trac...

The strong Erzincan earthquake (Ms = 6.8, hypocentral depth of ~10 km) occured in Turkey on March 13, 1992 in the area of the North Anatolian fault and was followed by the strong aftershock (Ms=5.8) two days after. In total, more than 3000 aftershocks were recorded in the epicentral region. Aftershock area is densely concentrated within the joint a...

Stress state of epicentral area before and after earthquake (after formation of major fracture) is modeled. The employed software system allows 2D (plain-strain deformation) modeling of stress state of heterogeneous geological medium with a system of tectonic faults. The faults were modeled as extended zones of loosened geomaterial with elastic mod...

April 16, 2016 in the prefecture of Kumamoto (Kyushu, Japan) there was a strong earthquake with M 7.3. This earthquake is the strongest in the last 30 years in this area. For a day before the main push, two foreshocks with M 6.4 were registered. For seven days after the main shock, aftershock activity spread to the north-east and south-west, most h...

Yenisei Ridge is located at the junction of major tectonic structures - Siberian Platform and West Siberian Plate. Its southern part is characterized by stable tectonic regime, the average speed of uplift according to geological data is 0.2-0.3 mm per year with the total amplitude of 400-500 m. However, the speed of modern movements of the Earth's...

Modern mining enterprises are complex natural-technical systems, accident-free operation of which is impossible without integrated methods of obtaining information about their condition. The valid regulatory framework indicates the necessity to monitor the exploitation of solid minerals; however, the analysis showed that nowadays design and deploym...

The genetic linkage of strong earthquakes with fault tectonics in continental regions gives grounds to assume that the high intensity gradient fields of tectonic stresses in local areas lead to tectonic ruptures (earthquakes) and following aftershock activity including co-seismic effects. We present the results of modeling of stress-strain state (S...

The introduction of devised method for a complex monitoring of sloping structures organization in mining enterprises, linear structures (highways and railways) and on large building sites includes such innovative steps as: 1. Building a model of a slope based on the assessment of spatial and temporal variability of characteristics of the rock mass....

The epicenter of the 13.03.1992 M = 6.8 strong tectonic earthquake is localized in the region of North Anatolian Fault (Turkey) at the junction of tectonic faults of lower rank. The earthquake focus is located at a depth of 10 km, with a compression axis oriented along the meridian. The authors used a fault tectonic scheme of mathematical modeling...

Exploitation of landslide-prone escarpments of middle safety factor, or in a state of limiting equilibrium can lead to a crash when changing the seismic and hydro-geological situation. In this connection it is necessary to develop recommendations for the deployment of a network of information collection points hydrogeomechanical c monitoring high d...