84 Result(s)
within
Zhen**g Yang
Earth Sciences
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Article
Deformation Analysis of a Roadway Tunnel in Soft Swelling Rock Mass Based on 3D Mobile Laser Scanning
Roadway deformation is a comprehensive response to changes in surrounding rock masses as well as the geological environment. Deformation patterns survey can help us to understand rock masses, especially soft s...
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Article
Study on Parallel Bond and Smooth Joint Dual Model Parameter Calibration of Mechanical Properties of Shale Under Pressure
Employing a rational numerical model to characterize the compressive mechanical properties of shale is highly significant for large-scale shale-related engineering demonstrations. By analyzing the effects of t...
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Article
Morphological comparison and molecular marker screening of three Skeletonema species found in Changjiang (Yangtze) River Basin
In our recent investigations of diatom diversity, we studied three species, namely, Skeletonema costatum, Skeletonema subsalsum, and Skeletonema potamos. Although they have been found frequently in Changjiang (Ya...
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Article
Revealing the Influence of Grain Size on Failure Mechanisms and Acoustic Emission Characteristics in Thermally Treated Crystalline Rock: Insights from Moment Tensor Inversion
Acoustic emission (AE) is an effective tool for revealing the rock failure mechanism. However, research has found that over 90 \(\%\) ...
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Article
Open AccessShared pooled mobility essential complement to decarbonize China’s transport sector until 2060
Greenhouse gas emission reduction in the passenger transport sector is a main challenge for China’s climate mitigation agenda. Electrification and shared mobility provide encouraging options for carbon emissio...
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Article
Spatial correlations in time and frequency domains between chlorophyll-a concentration and environmental factors in the Bohai Sea
Based on the reconstructed MODIS data and ECMWF reanalysis data from 2003 to 2021, spatial correlations between chlorophyll a (Chl a) and sea surface temperature (SST), photosynthetically available radiation (PAR...
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Article
Landslide hazard susceptibility evaluation based on SBAS-InSAR technology and SSA-BP neural network algorithm: A case study of Baihetan Reservoir Area
Landslide hazard susceptibility evaluation takes on critical significance in early warning and disaster prevention and reduction. In order to solve the problems of poor effectiveness of landslide data and comp...
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Article
Study on the damage mechanism of granite containing prefabricated non-through joints
This study conducts uniaxial compression tests on granite samples with prefabricated fissures to investigate the damage mechanism of granite containing non-penetrating joints. These tests combine indoor experi...
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Chapter and Conference Paper
An Experimental Study on Acid Treatment Using Autogenic Acid Fluid System in Ultrahigh-Temperature Carbonate Reservoirs
In the acid fracturing stimulation of ultra-high temperature carbonate reservoirs, conventional acid has problems such as fast acid-rock reaction rate, and inability to achieve deep penetration. Therefore, thi...
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Chapter and Conference Paper
Reserves Estimation for Ultra-deep Fault-Controlled Fractured Cavity Carbonate Reservoirs
The interval from the Ordovician Yijianfang Formation to the 2nd member of Yingshan Formation in Fuman Oilfield is a typical fault-controlled carbonate fractured-vuggy reservoir. Its dynamic reserves estimation i...
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Article
Newly Identified A-type Granite in Western Yangtze Block and Its Geochemistry Characteristics: Evidence for Ridge Subduction beneath the South China Craton
Numerous Neoproterozoic granitic intrusions occur over a north-south distance of more than 700 km in the western Yangtze Block. In this paper, we use zircon U-Pb age, Lu-Hf isotopic, and whole-rock geochemical...
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Article
Development of a New Rockbolt with High Load and Large Deformation Capacities
A new rockbolt for rock support in deep underground engineering is developed. The bolt, which is called 2S-bolt, is composed of a threadbar, a sliding piston, a sliding-resistance cone pipe, an anchorage secti...
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Article
Thermal Effects on Tension Softening Response and Fracture Characteristics of Quartz-Diorite
Identifying the thermal effects on the tension softening curve is of great significance for understanding the fracture characteristics of rock specimens after thermal treatments and provides the experimental b...
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Article
Effect of frequency on rock’s mechanical responses under multi-level compressive cyclic loading: an experimental investigation
This article aims to investigate the impact of frequency sequence on mechanical responses of sandstone exposed to multi-level compressive cyclic loading. Two modes were used with three levels of low frequencie...
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Article
A Theoretical Model for the Microwave Emissivity of Rough Sea Surfaces
When sea surface wavelengths are not larger than microwave wavelengths, the microwave emissivity of Gaussian rough sea surfaces can be investigated by applying effective media theory (EMT) of rough surfaces. F...
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Article
Anthropogenic 129I in seawaters along the north-central part of the English Channel: Levels and tracer applications
The English Channel (the Channel) represents a major sink and transport pathway of anthropogenic radioactive 129I. Despite this important role, data concerning the distribution of 129I in seawater of the Channel ...
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Article
Fatigue Mechanical Properties of Salt Rocks Under High Stress Plateaus: The Interaction Between Creep and Fatigue
To meet the requirements of the United Nations Framework Convention on Climate Change, i.e., the Paris Agreement, countries around the world have developed carbon-peaking and carbon–neutral action programs. Th...
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Article
Effect of high temperature on the brittleness index of granite: an experimental investigation
Brittle index evolution is an important property of rocks in the context of mining engineering, as it often determines how severe the practical consequences of rock burst will be. However, the lack of knowledg...
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Article
Tensile strength identification of remolded clayey soils
The tensile strength of soil is a major mechanical parameter controlling the development of tensile cracking, which is commonly encountered in many earth structures. This paper aims to identify the tensile beh...
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Article
Open AccessDigital characterization and fractal quantification of the pore structures of tight sandstone at multiple scales
Pore structures determine reservoir storage capacity, control rock transportation characteristics and represent microscopic properties of the rock. Therefore, the characterization and quantification of the por...
