Automatically translated preprints from the Chinese arXiv (ChinaXiv).
Showing 50 of 1495 papers
Currently, water hammer numerical models commonly employed in hydraulic engineering often neglect the influence of cavitation induced by negative pressure, with most friction models still utilizing steady friction models, namely the Darcy-Weisbach formula, resulting in simulation results that undere…
The significant differences in shrinkage and creep characteristics between ultra-high performance concrete (UHPC) and normal concrete (NC) lead to markedly distinct long-term deflection growth in steel-UHPC composite beams versus steel-NC composite beams. To scientifically and rationally calculate t…
Addressing the issue that existing slope deformation predictions rarely consider the spatial variability of soil property parameters, this paper proposes a stochastic deformation prediction method for high fill slopes. By analyzing the one-dimensional consolidation creep characteristics of loess, a …
The designability of compressive modulus and plateau stress, along with the tunability of compressive mechanical properties, constitute key challenges in enhancing the applicability of porous materials. The design methodology for ordered porous-based interpenetrating phase composites represents an e…
Flight testing is the most authentic and effective ultimate means for aircraft design verification and certification. The main landing gear of a certain large aircraft employs a novel tandem multi-strut configuration, featuring complex structural load transmission and landing impact loads, which pre…
Objective To investigate the effects of plyometric training on lower limb explosive power, agility qualities, and other sport-specific attributes of volleyball players, and to provide scientific methods for volleyball training. Methods Thirty volleyball players were randomly selected and divided int…
To clarify the time-dependent evolution of pile-soil interaction and the variation law of negative skin friction for pile foundations in high loess fill sites, and to elucidate the influence of internal force variation on the long-term service performance of pile foundations, considering the creep d…
The hydrodynamics of flow around pile groups beneath pile-supported wharfs is more complex than that of single-pile structures and exerts significant influence on harbor hydrodynamics and sediment transport. To investigate the underlying interaction mechanisms, a laminar flow model based on the CFD …
A comparative analysis was conducted on the mechanical properties of knee joint cartilage tissues (meniscus, femoral cartilage, tibial cartilage) between the unaffected side of stroke patients and the corresponding side of healthy individuals. Complete knee joint finite element models were establish…
Objective To investigate the effects of different running speeds on lower limb kinematics, kinetics, and plantar pressure distribution in male athletes. Methods Fifteen physical education students from a university's sports institute were selected and divided into three groups based on treadmill spe…
Volition is the capacity for autonomous self-control, a core characteristic that distinguishes humans from animals and machines, and the cornerstone of physical and mental health and social order. Its external manifestation is voluntary action, whereas its internal representation is the sense of con…
Based on self-concept theory, this study explores the nonlinear effect of perceived overqualification on employees' work passion. Through analyzing paired questionnaire data from 856 employees and their immediate supervisors at a large state-owned bank across four time points, the findings reveal: (…
Abstract: [Objective] To investigate the pathways and mechanisms through which AIGC technology drives the digital dissemination of intangible cultural heritage (ICH) to resolve its inheritance predicament. [Methods] Grounded in a technology adaptation perspective, this study employs literature resea…
The Linxia Basin, located in northwestern China on the margin of the Qinghai-Tibet Plateau, preserves abundant Neogene mammal and bird fossils. A skeleton of a small phasianid species with exceptional preservation is reported from the Linxia Basin, dating to approximately the latest Miocene to early…
Efficient design of flexible rockfall guiding nets requires a clear understanding of how slope topography influences rockfall energy dissipation and system loads, a task often hindered by the computational cost of conventional models. To this end, this study first developed, calibrated, and validate…
To more reasonably evaluate the dynamic stability of rockfall masses under seismic action, a mass viscoelastic model was employed to simulate the two primary controlling surfaces of toppling-type rockfall. Based on the principles of structural dynamics, a dynamic response analysis model and equation…
The "9.5" Luding earthquake induced extensive coseismic geological hazards in the Hailuogou Scenic Area at the epicenter, with 50% of the scenic area roads located within the seismic intensity IX (9-degree) impact zone, resulting in severe road damage and complete loss of traffic capacity. To invest…
Coal and gas outburst constitutes a major safety hazard in China's mine production, posing severe threats to underground personnel and constraining mining efficiency. To address this issue, this study comprehensively investigates the occurrence mechanism and key influencing factors of coal and gas o…
Unstable rock masses are highly prone to collapse disasters under seismic action. To calculate the stability of toppling-type unstable rocks under bidirectional seismic action and investigate the influence of ground motion randomness on their dynamic fuzzy reliability, this study analyzes the dynami…
On May 28, 2025, a high-altitude long-runout ice-rock avalanche-debris flow disaster occurred at the Birch Glacier in the Alpine region of Valais, southern Switzerland, completely destroying the downstream towns of Blatten and Ried, necessitating the emergency evacuation of over 300 residents, with …
Taking the "Banbiyan" dangerous rock in the Three Gorges Reservoir area as the research background, the damage evolution characteristics of this type of shear zone-bedrock interface under wet-dry cycles were investigated through wet-dry cycle tests, shear tests, and numerical simulation methods. The…
The Daxingzhai Reservoir Project is primarily designed for flood control, while also serving the functions of water supply, irrigation, and ecological water replenishment. Through a two-stage curtain grouting production test, this paper systematically analyzes the effects of different grouting press…
Red beds refer to the collective term for red rock series deposited throughout various geological historical periods, represent typical "slip-prone strata", and are prone to triggering clustered geological hazards during intense rainfall events. A review of research findings on the development, dist…
Deep strata of coarse-grained Soil-Rock Mixture (SRM) are widely distributed in southwestern China, posing a serious threat to construction and operational safety due to their loose structure, high porosity, and abundant rock blocks. Tunnel excavation in such deep-buried, fractured, and highly heter…
This paper investigates the crack problems that emerged in the high sandy slate slope at the right dam abutment of Jiaohua Reservoir during excavation. It elaborates in detail on the crack development in the reservoir slope, the construction layout for treatment, and the specific construction techni…
Pumped-storage power stations feature numerous tall and large shaft structures. Typically, consolidation grouting for vertical shafts involves arranging horizontal diffusion holes around the shaft walls; however, this method presents various disadvantages in actual construction, including issues rel…
This paper investigates the integrated application of the GIN grouting method and intelligent grouting system in rock mass grouting, using the Lesotho Polihali Dam project as a case study. To address the challenges of difficult control, low efficiency, and significant quality fluctuations associated…
Investigating the temperature field evolution in high-geothermal tunnels is crucial for optimizing thermal control strategies. Field monitoring obtained the spatiotemporal distributions of rock temperature (Tr), environmental temperature (Te), and air flow velocity (Wv), while laboratory experiments…
Due to its abruptness and extensive occurrence, slope toppling failure has become a typical deformation pattern requiring urgent attention in engineering construction and disaster prevention within the geologically complex mountainous regions of southwestern China. To thoroughly investigate its unde…
Big data has brought new opportunities to landslide research; however, due to issues such as complex data types, diverse semantic relationships, and unclear sharing mechanisms, deep mining of landslide data remains limited, and the advantages of big data are difficult to realize in landslide researc…
Shenzhen is a megacity that emerged following China's reform and opening-up, having experienced rapid urbanization with frequent land transformation. Simultaneously influenced by a subtropical monsoon climate, the jurisdiction features abundant rainfall and dense vegetation cover, rendering geologic…
The Ms 6.2 Jishishan earthquake in Gansu on December 18, 2023, triggered a typical earthquake-induced liquefaction-type landslide-debris flow in Jintian Village and Caotan Village, Zhongchuan Township, Minhe County, Haidong City, Qinghai Province, resulting in numerous houses being surrounded and bu…
To address the challenge that traditional ground survey methods struggle to identify high-position concealed landslide hazards, the author's team proposed a "space-air-ground" collaborative "Three-Survey" system for landslide hazard identification and monitoring, which has been applied engineering-w…
The Shuangjiangkou Hydropower Station is located in the high mountain and gorge area of Aba Prefecture, Sichuan Province, and is the world's highest under-construction earth-core rockfill dam (maximum dam height 315 m), as well as one of China's most technically challenging hydropower projects. Its …
Natural rock mass discontinuities exhibit unique mechanical properties that define weak zones within rock masses, playing a decisive role in the structure, strength, and stability of various rock engineering applications including tunnel support, surrounding rock classification, and slope reinforcem…
In mid-to-late April 2024, an extreme heavy rainfall event occurred in Shaoguan City, Guangdong Province, triggering a large number of landslide disasters in the Jiangwan Town area of Shaoguan, causing certain regions to remain disconnected for nearly 36 hours and attracting widespread social attent…
Geological disasters occur frequently in China, with particularly severe disaster-induced losses. Multiple major geological disaster events in recent years have demonstrated that geological disaster prevention and control in densely vegetated mountainous areas and inaccessible regions constrained by…
Deep-buried tunnels face coupled multi-hazard threats from high rock temperature, high-temperature water, and harmful gas outbursts, which induce thermal hazard effects including deterioration of the temperature-humidity environment within tunnels, intensified deformation and failure of surrounding …
On February 8, 2025, an extra-large high-position landslide-debris flow disaster occurred at Jinping Village, Mu'ai Town, Junlian County, Yibin City, Sichuan Province, resulting in significant casualties and property losses. This study systematically investigates the chain-forming mechanism and emer…
The complex deformation behavior of landslides can be described by the three-stage deformation curve of geotechnical materials, providing an effective phenomenological tool for early warning and prediction. However, to date, the physical mechanism underlying the three-stage deformation of landslides…
To mitigate the adverse effects of concealed landslide hazards in densely vegetated mountainous regions on the full life cycle of highways, this study leveraged the vegetation-penetrating capability of airborne LiDAR to obtain a high-precision DEM with 0.2m spatial resolution for the under-construct…
Around 11:50 AM on February 8, 2025, Beijing time, a sudden landslide occurred at Gaojiaping, Jinping Village, Mu'ai Town, Junlian County, Yibin City, Sichuan Province, resulting in severe casualties and property damage. To investigate the kinematic process of the landslide, seismic records generate…
As a major technical challenge in tunnel construction, thermal hazards induced by geothermal anomalies encompass disaster-causing elements including hot water and gas sources, transport pathways, dynamic mechanisms, and engineering indicators, featuring strong concealment, high suddenness, and compl…
Landslide hazards rank among the natural disasters with the highest frequency, widest distribution, and most severe losses globally, posing a grave threat to human life and property safety as well as major engineering facilities. Scientific monitoring serves as a critical technical prerequisite for …
Heat hazards in deep-buried tunnels have emerged as a significant challenge constraining their safe construction. This paper addresses the limitation of current tunnel heat hazard research, which primarily focuses on managing high rock temperature and high ambient temperature during the construction…
Water impoundment of large reservoirs exerts a significant triggering effect on reservoir bank landslides. Research on early identification and deformation evolution of reservoir bank landslides can provide important support for geological disaster prevention and control in reservoir areas. The Lian…
During subway construction, mitigating the impact of construction on the surrounding environment and protecting adjacent buildings and utilities has always been a critical focus of construction control. This paper presents a case study of a station on Shanghai Metro Line 15, where the adjacent hotel…
The Dongjiekou Station of the Fuzhou Urban Rail Transit Line 4 Phase I Project is located in the city center area, constituting a three-level underground station featuring a cross interchange with Line 1. The surrounding environment is complex, with certain foundation pit retaining structures positi…
With the continuous advancement of trenchless technology, the application scope of rectangular pipe jacking construction has been continuously expanding. This paper takes the super-large cross-section rectangular pipe jacking construction with a middle partition wall for Fuzhou Metro Line 4 as an ex…
Against the backdrop of integrated development of urban rail transit and various types of railways in China, the application of single-tube double-track shield tunnels is increasing. Compared with traditional double-tube double-track tunnels, they have larger diameters and more complex internal stru…
