Jianping Chen

Jianping Chen
Jilin University | JUT · College of Construction Engineering

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218
Publications
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3,418
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Publications

Publications (218)
Article
Full-text available
Accurately estimating the mean trace length (mtl) of discontinuities is crucial for three-dimensional (3D) network simulations of random discontinuities. Currently, the mtl is mainly estimated by laying out scan lines or sampling windows, based on the intersection of discontinuities with these scan lines or sampling windows. However, these methods...
Article
The Eastern Himalayan Syntaxis is a high denudation zones, with mass flow events occurring frequently. The Jiaobunong paleolandslide (JPL) river blocking event is a typical prehistoric event that can be identified by special topography and upstream lacustrine sediments. This study applies the topographic reconstruction technique to revive the paleo...
Article
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Catastrophic debris flow events frequently occur in mountainous areas around the globe, which poses a serious threat to the socio-economic environment and safety in the alluvial fans. Debris flow often occurs under conditions triggered by heavy rainstorms and rapid snowmelt making it one of the most destructive geological disasters because it does...
Article
The formation and evolution of large-scale deposits generated by mass movement are often closely related to tectonic and climatic conditions. Investigating deposits under the influence of complex geological conditions can aid in reconstructing paleoenvironmental characteristics and fluvial geomorphic evolution. The First Bend of the Yangtze River (...
Article
Global climate change is a critical topic within geological and environmental research, serving as a pivotal factor in the formation of geological events and the reformation of river landscapes, thereby influencing the regional geological historical processes. Identifying a stable and reliable proxy for climate change is essential for analyzing the...
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Debris flow is a prevalent geological disaster in Beijing, particularly in the Mentougou District, situated in the mountainous southwestern region of Beijing City. The past irrational exploitation of minerals has led to a substantial accumulation of slag, providing abundant loose materials for the formation of debris flow in the study area. Differe...
Article
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The rapid and accurate acquisition of discontinuity parameters of rock masses is of paramount significance for the stability assessment of rock slopes. However, the complex and hazardous terrain of high-steep rock slopes poses challenges to conventional survey methods. Given this, this study proposes the unmanned aerial vehicle (UAV) multi-angle na...
Article
In the Eastern Himalayan syntaxis, massive Quaternary loose deposits represent a typical product of abrupt topographic changes. Influenced by the Qinghai‐Tibet Plateau uplift and rapid river incision, the partial or complete failure of these deposits is a recurrent phenomenon in alpine‐gorge regions, posing substantial threats to major infrastructu...
Article
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Discontinuity-controlled rock slope instability analysis is an important issue in slope engineering. In this study, an integrated approach based on probabilistic kinematic and block theory is proposed to calculate maximum safe slope angle (MSSA). It incorporates the varieties of discontinuity orientation, friction angle and block geometric shapes....
Article
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The 3D real scene model of high-steep rock slope established based on UAV image provides convenience for non-contact identification and interpretation of rock mass structures. The quality of 3D models directly influences the interpretability of rock mass structures. However, quantitative studies on the relationship between these two aspects are sca...
Article
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Debris flows are significant geological hazard in Beijing mountainous areas. As a non-engineering means, hazard assessment is instructive for debris flow prevention and control. A rational assessment framework should not only sufficiently describe various attributes of the debris flow system but also provide objective and reasonable hazard zoning r...
Article
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Rock masses are very important materials in geotechnical engineering. In engineering rock mass, fracture is the relatively weak part of mechanical strength in rock mass and is the most important factor controlling the deformation, damage, and permeability of rock mass. Therefore, investigating fractures is very important for characterizing rock mas...
Article
This research aims to improve the reliability of debris flow susceptibility (DFS) assessment, which is crucial for disaster prevention and mitigation in mountainous regions. A progressive framework was proposed and applied to Pinggu District, Beijing, China. First, 16 debris flow predisposing factors (DFPFs) were selected, and the slope structur...
Article
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In the Yarlung Zangbo River valley in north Himalaya, many high-frequency debris flows develop, with large amounts of run-out debris materials. To reduce the hazard scale of the debris flow, check dams are frequently used to mitigate and prevent debris flow movement, and many check dams are damaged under the impact of debris flows. This paper propo...
Article
The engineering-geological characteristics of fractured rock masses depend on the discontinuity properties, which can be analyzed by the stereonet-based system. However, this system faces challenges in describing orientations, which are spherical data, and it cannot incorporate other scalar parameters (e.g., trace length, aperture, etc.) that affec...
Article
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The N-75 highway has a strategic and socioeconomic importance in North Pakistan and is prone to frequent disruption by landslides. For landslide mitigation strategies of this highway, comprehensive landslide inventory and susceptibility assessment are rarely available. This study presents the application of Analytical Hierarchy Process (AHP) and We...
Article
In this paper, the authors investigated the dynamic process of a high-level paleolandslide blocking river event-Gangda landslide blocking river event in the deep valley area. An integrated fluid–solid coupling method based on the FDEM-SPH was proposed to study it. In the numerical model, the dynamic process of the landslide is described by FDEM, wh...
Article
Due to the randomness and complexity of the discontinuity distribution, it is always complicated to analyse the three-dimensional stability problem of discontinuity-controlled rock slope in the field of engineering geology. Specifically, when restricted by poor sampling conditions, the discontinuity data obtained are very limited. To solve this pro...
Article
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As a common geological hazard, debris flow is widely distributed around the world. Meanwhile, due to the influence of many factors such as geology, geomorphology and climate, the occurrence frequency and main inducing factors are different in different places. Therefore, the evaluation of debris flow sensitivity can provide a very important theoret...
Article
Rockfall source areas identification of high steep fractured rock slope is a challenging task for hazard mitigation. Considering this difficulty, a new method integrating discontinuity-based threshold slope angle and rockfall trajectory analyses is introduced in this study and applied to a railway bridge in China. First, abundant discontinuity data...
Article
Old deposits are typical products of the rapid topographical changes on the southeastern margin of the Qinghai-Tibet Plateau and its surroundings. Catastrophic landslides often occur in unstable areas of old deposits, causing great damage to life, infrastructure, and the environment. This study takes the Sangushui old deposit as the research object...
Article
A R T I C L E I N F O Keywords: Block automatic extraction Dangerous rock block Block geometric characterization Block stability analysis In-situ block Discontinuity trace map A B S T R A C T Using a rock slope surface model generated from unmanned aerial vehicle (UAV) digital photogrammetry, this study develops a new semi-automatic dangerous rock...
Article
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A large amount of lacustrine sediments was found in the Suwalong reach, which is located upstream of the Jinsha River at the southeastern margin of the Tibetan Plateau. The study area belongs to the alpine valleys, with arid and semiarid climate. The appearance of lacustrine sediments indicates that river-blocking events had occurred in this reach...
Article
To better understand the dynamic process of rock avalanches blocking rivers, a novel numerical approach based on the coupled Eulerian-finite-discrete element method (CEFDEM) is proposed. The Samaoding paleolandslide blocking river event, which occurred at the upstream of the Jinsha River was used as a case study to further validate the new numerica...
Article
Determining the fracture trace length distribution for a rock mass is an essential and difficult step in statistical fracture modeling. This requires the collection of representative mapping data, which for many large hydropower projects includes mapping in underground exploration tunnels resulting in long and narrow sampling windows. This limits t...
Article
The Sichuan-Tibet railway, which spans many alpine canyon regions, is being built in southwestern China. Investigating the characteristics of rock discontinuity sets is the basis for identifying dangerous rock masses above the tunnel portals. The traditional methods of identifying discontinuity sets usually consider orientations and ignore other pa...
Article
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The rock slopes along the Sichuan–Tibet railway are characterized by noncontactless, inaccessible, dramatically fluctuating topography and large-scale areas. Numerous high-position, concealed dangerous rock blocks (HPCDRBs) are located on such slopes, potentially threatening the construction and safety operation of the Sichuan–Tibet railway. To thi...
Article
The geological conditions in the upper reaches of the Jinsha River on the southeastern margin of the Qinghai–Tibet Plateau are extremely complex. Many paleo-landslides and lacustrine sediments were formed in this area under the synergistic effect of tectonic activity and climate. The study of old deposits is helpful for understanding paleoenvironme...
Article
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In the mountainous areas passed by the Sichuan–Tibet Railway, rockfall is one of the important geological hazards with characteristics of unpredictable and sudden occurrences. For high and steep slopes, this study employs nap-of-the-object photogrammetry with the characteristic of close flight distance to reconstruct a 3D geological model, which is...
Article
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In this study, the effect of the fracturing degree of the source rock on rock avalanche river-blocking behavior was investigated. The study included the analysis of mass movement behavior, impulse wave behavior, and the formation of landslide dams. The study included a series of simulations of rock avalanche river-blocking based on the coupled Eule...
Article
Full-text available
Debris flow is one of the main causes of loss of life and infrastructure damage in mountainous areas. This hazard should be recognized in the early stage of land development planning. According to field investigation and expert experience, a scientific and effective quantitative susceptibility assessment model was established in Pinggu District of...
Article
The formation of the First Bend of the Yangtze River is an important event in the fluvial geomorphological evolution on the southeastern margin of the Qinghai-Tibet Plateau. After the formation of the First Bend, the water system in the Jinsha River (Upper Yangtze River) changed, resulting in a key period shaping geomorphology in this area. A large...
Article
Identification of rock discontinuity sets is essential for each studied jointed rock slope, and is also an initial step in many existing methods for rock slope stability analysis. This paper presents a new hierarchical agglomerative clustering method using modified agglomerative nesting (MAGNES) algorithm for automatically partitioning discontinuit...
Article
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The traditional method of obtaining rock quality designation (RQD) cannot fully reflect the anisotropy of the rock mass and thus cannot accurately reflect its quality. In the method of calculating RQD based on three-dimensional network simulation of discontinuities, due to the limited number of samples and low accuracy of discontinuity data obtaine...
Article
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Many SAR satellites such as the ALOS-2 satellite and Sentinel-1A satellite can be used in Interferometric Synthetic Aperture Radar (InSAR) to identify landslides. As their wavelengths are different, they can perform differently in the same area. In this study, we selected the alpine canyon heavy forest area of the Baishugong–Shangjiangxiang section...
Article
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As a result of the influence of plate movement, the upper reaches of Jinsha River have strong geological tectonic activities, large topographic fluctuations, and complex climate characteristics, which result in the frequent occurrence of landslide disasters. Hence, there is the need to carry out landslide susceptibility mapping in the upper reaches...
Article
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Failure angle, also called maximum safe slope angle, is an important design parameter for rock slope stability analysis and slope excavation. This study aims to scientifically acquire the failure angle of the jointed rock slope, and a method incorporating the kinematic analysis, Bayesian estimation and Monte Carlo simulation is proposed. The probab...
Article
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A large proportion (~80%) of the Indian subcontinent’s precipitation comes from the Indian summer monsoon (ISM), which influences one-fifth of the world’s population. A long-term reliable proxy for ISM is fundamental to understanding previous global climate change. We establish a mass-wasting-inferred proxy to examine the paleohydrogeology (river u...
Article
Full-text available
The temporary or permanent river blocking event caused by mass movement usually occurs on steep terrain. With the increase of mountain population and land use pressure and the construction of water conservancy and hydropower projects, river blocking events have gradually attracted people’s attention and understanding. The area in this study is affe...
Article
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The Qulong paleolandslide dam event lies in the Benzilan-Batang zone of the upper Jinsha River. The Jinsha River is one of the most extensive water resources in southwest China. Here, the geological environment is complex, and the tectonic activity is intense. Thus, landslide dam events occur frequently, forming large barrier lakes. Analyzing and u...
Article
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A large number of paleo-landslide deposits exist in the Southeastern margin of the Qinghai–Tibet Plateau. Once these deposits are destroyed, the disaster chain will cause huge damage to life and property and have an impact on local geomorphic evolution. Diverse models are applied to analyze different geological problems of paleo-landslide deposits,...
Article
Numerous paleolandslide dams are distributed along the upper reaches of the Jinsha River under the special geological setting of the Tibetan Plateau. A field investigation revealed that the Rongcharong paleoriver-blocking event formed one such dam. Optically stimulated luminescence results show that the paleolandslide occurred in 2.2 ± 0.1 Ka BP an...
Article
A large paleolandslide occurred opposite the Gangda village in the upper Jinsha River, SE Tibetan Plateau. Field geological investigations and remote sensing indicated that the Gangda paleolandslide once blocked the Jinsha River. Evidence of river blocking, including landslide dam relics, upstream lacustrine sediments, and downstream outburst sedim...
Preprint
Full-text available
The temporary or permanent river blocking event caused by mass movement usually occurs on steep terrain. With the increase of mountain population and land use pressure and the construction of water conservancy and hydropower projects, river blocking event has gradually attracted people’s attention and understanding. The study area (Wangdalong-Gangd...
Article
Full-text available
Distribution characteristics and strength of 3D discrete fractures have a decisive effect on the rock slope stability. How to use the fractures obtained on site to establish a 3D fractured rock slope for stability analysis is a difficult problem in the field of rock mass engineering. This study selected the rock slope on the right bank of Yigong Za...
Preprint
Full-text available
Debris flow is one of the main causes of life loss and infrastructure damage in mountainous areas, so these hazards must be recognized in the early stage of land development planning. According to field investigation and expert experience, a scientific and effective quantitative susceptibility assessment model was established in Pinggu District of...
Article
The longitudinal profile of rivers in active orogenic belts records the competitive process occurring between erosion and uplift, and the knickpoint, as a unique sign, can support this. A series of distinctive knickpoints are distributed at different heights in the basin of the Layue River, which is a tributary located on the northwest side of the...
Article
Making accurate and effective landslide susceptibility maps (LSMs) can effectively reduce the harm of landslide disasters and provide guidance to protect people’s life and property. Choosing the appropriate modeling method is the key to establish an accurate and practical landslide susceptibility evaluation model. Therefore, in order to find the op...
Article
There are three main factors controlling the formation of debris flow; of these, the ability to evaluate the volume of source materials in a catchment is the most significant. Source materials come from channel bed sediment, nearby landslides and rilling and surface erosion of slopes. The objective of this study was to develop a multi-source method...
Article
Full-text available
Debris flow mainly happens in mountainous areas all around the world with deadly social and economic impacts. With the speedy development of the mountainous economy, the debris flow susceptibility evaluation in the mountainous areas is of crucial importance for the safety of mountainous life and economy. Yunnan province of China is one of the worst...
Article
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Extensive models used in debris flow runout simulations are two-dimensional with many limitations. Considering these limitations, a new three-dimensional computational fluid dynamics (CFD) code based on the finite difference method (FDM) was introduced to simulate debris flow runouts. The unique fractional area-volume obstacle representation (FAVOR...
Article
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Debris flows are a widespread and dangerous geological disaster that cause severe damage to residents, buildings and roads in the Mentougou mountain belt, Beijing. According to existing reports and field investigation results, previous records tend to be of the areas affected by debris flow, not the process area where the debris flow occurred. This...
Article
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Due to the need of economic development and energy structure adjustment, China intends to build a number of pumped storage power stations for hydroelectric storage to generate electricity. Pumped storage power stations are generally built in mountainous or hilly areas where sufficient water and height differences will provide the adequate head diff...
Article
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According to information provided by the residents of Pinggu District, Beijing, 79 gullies were investigated. Based on the results of field investigations, 65 gullies were classified as debris flow gullies, and 14 were classified as non-debris flow gullies. By using ArcGIS software, the area and the quantity information of various factors affecting...
Article
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The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this study, the topographical features and debris flow deposits i...
Article
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Evaluation of the structural similarity or structural domains is a fundamental step for characterizing fractured rock masses. In this research, the division of rock masses into structural domains is treated as a multi-parameter clustering problem. The fuzzy spectral clustering method is used and proved to be an effective approach for measuring the...
Article
Numerous old deposits occur in the Eastern Himalayan Syntaxis, especially on the banks of the Yarlung Tsangpo River and its tributaries, where strong tectonic movement and riverine erosion increase the potential for landslides. The possible future deformation and failure processes of these old deposits and their impacts on the surrounding environme...
Article
This paper reports that the geometrical representative elementary volume (REV) of fractured rock masses is anisotropic, and the geometric shape of an REV is of a complex, irregular geometry. A 3D fracture network model of 98 m × 80 m × 80 m was created using the field information collected from tunnel PD254 at the Maji dam site in China. One hundre...