Jiangsu Provincial Institute of Geological Survey

Analysis of anomaly characteristics in mineralized segments using core drilling and geophysical logging

Reliable recognition of mineralized intervals from borehole logging data remains difficult because weak mineralization, thin layers, borehole disturbance, and lithological changes may produce similar curve responses. This study develops a multi-parameter coupled anomaly identific...

Coal-Body Structural Evolution, Multiscale Pore-System Reorganization, and Methane Storage-Transport Characteristics Across a Tectonic Deformation Gradient

Tectonic deformation can reorganize adsorption-related pores, matrix pore space, and pore-throat-fracture networks, but how these functional domains jointly govern fluid mobility and permeability stability under stress remains unclear where deformation intensity and coal rank cov...

Effect of structure aspect ratio on the heat storage and extraction performance in an abandoned mine shaft

Combining solar energy with water tank thermal storage is a highly promising method for achieving cross seasonal storage and utilization of low-grade energy. However, the existing research mainly focuses on ground water storage, few investigations are involved in using abandoned...

Analytical model for the progressive collapse resistance of a novel fully assembled concrete beam‐column substructure with bolted flange connections

Abstract This study develops an analytical model to characterize the progressive collapse resistance of a novel fully assembled concrete beam‐column substructure with bolted flange connections. The model, which idealizes the bolts as an equivalent continuous section to determine...

Multi-Year Variation Characteristics and Driving Forces of Groundwater Levels in the Yibin Area, Southern Sichuan, China

To support groundwater protection and sustainable utilization in southern Sichuan, this study aims to clarify the multi-year variation characteristics of groundwater levels (GWLs) and identify their main driving factors in the Yibin region. In this paper, 2019–2024 GWL monitoring...

Experimental study and model prediction of acoustic wave dispersion and attenuation in medium-coarse sandy sediments

A comparable joint dataset of compressional-wave (P-wave) and shear-wave (S-wave) speed and attenuation for saturated Ottawa sand under consistent sample conditions was obtained, using a dual-probe acoustic measurement method (DPAMM) for P-waves (20–150 kHz) and bender element (B...

Water Transport Characteristics and Their Impaction on Stability of Unsaturated Xiashu Loess Slopes During the Entire Process of Rainfall Infiltration

The Xiashu loess in the middle and lower reaches of the Yangtze River with typical aeolian characteristics is widely distributed in the hilly areas and is the main kind of landslides in this area. The paper reveals the infiltration process of the Xiashu loess slope under differen...

Strength enhancement and microstructural evolutions of dredged slurry stabilized with waste-modified composite binder

Dredged slurry with high water content and low permeability is prone to drainage clogging during vacuum preloading, limiting its direct use in land reclamation and typically requiring cement-based treatment. To explore a lower-carbon alternative to conventional treatment, this st...