Damage analysis and grading control technology of surrounding rock in high geo-stress roadway by Liu Chongyan, Zhao Guangming, Pan Cheng, Meng Xiangrui, Xu Wensong, Liu Wenjie

“…The proposed grading control strategy includes three levels: Level I focus on preventing cracks through initial support, Level II involves reinforcing anchor injections to reduce cracks, and Level III applies local borehole pressure relief. Implementing this strategy can significantly reduce stress concentration and deformation in the surrounding rock, providing valuable insights for roadway support control.…”
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Preliminary Evaluation of Some Engineering Geological Properties of Soils in the New Yenagoa Town, Bayelsa State, Central Niger Delta by PO Youdeowei, HO Nwankwoala

“…The subsurface investigation was undertaken by drilling of ten near the shore drill holes using rotary type drill machine. The boreholes were spaced 100m apart along the 1.2 km long river channel and drilled down to a maximum of 10m. …”
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Time Characteristics of the Influence Radius by Injecting N2 to Displace Coalbed Methane: A Case Study by Chen Li-wei, Yang Tian-hong, Yang Hong-min, Wang Li-guo

“…Injecting N2 to displace methane is an effective way to enhance coalbed methane drainage, and the influence radius of this process is an important factor in borehole arrangement. To determine reasonable spacing between injection boreholes and discharge boreholes, experimental and theoretical studies were carried out. …”
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Novel Visualization of Building Earthquake Response Recorded by a Dense Network of Sensors by Lichiel Cruz, Maria I. Todorovska, Mihailo D. Trifunac, Alimu Aihemaiti, Guoliang Lin, Jianwen Cui

“…It is demonstrated on novel data that have been recorded recently in a 50-story skyscraper, uniquely instrumented with multiple triaxial accelerometers per floor, approximately at every five floors above ground and at two basement levels, and with rotational seismometers and two borehole arrays measuring the motion of the soil very near the building foundation. …”
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Field Investigation on Thermal Regime of Permafrost and Talik in a River Terrace, the Interior of Qinghai-Tibet Plateau by Yunzhi Zhang, Furong Liu, Xingbing Wang, Pengfei He, Jinggang Cui, Yishan Wang, Yanhu Mu

“…In the present study, the spatial distribution of permafrost and the freeze-thaw process of shallow ground at the I-stage terrace of a river on the Qinghai-Tibet Plateau were studied based on field investigation including drilling, electrical resistivity tomography, and borehole temperature measurement. The results show that the relict permafrost, patchy permafrost, and island talik are distributed in the limited range of the study area. …”
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Floor Failure Characteristics in Deep Island Longwall Panel: Theoretical Analysis and Field Verification by Pengpeng Wang, Yixin Zhao, Qingshan Ren, Yaodong Jiang, Cun Zhang, Yirui Gao

“…The failure characteristics of the floor at NO. 2129 panel in Xingdong coal mine were detected by the borehole televiewer and microseismic monitoring system to validate the theoretical model. …”
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Preliminary Evaluation of Some Engineering Geological Properties of Soils in the New Yenagoa Town, Bayelsa State, Central Niger Delta by PO Youdeowei, HO Nwankwoala

“…The subsurface investigation was undertaken by drilling of ten near the shore drill holes using rotary type drill machine. The boreholes were spaced 100m apart along the 1.2 km long river channel and drilled down to a maximum of 10m. …”
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Research on Optimal Design of Pressure Relief Blasting Parameters of Middle Rock Pillar in Near Vertical Coal Seam by Yadi Wang, Shiqi Yu, Hai Rong, Liting Pan

“…In order to achieve the optimal blasting effect, the finite element numerical simulation software GTS NX is used to carry out the chamber rock mass hole blasting simulation experiment, the three influencing factors of blasting effect, such as charge quantity, blast hole diameter, and blast hole row spacing, are comprehensively considered, and the optimal pressure relief blasting parameters with the radius of borehole blasting crack circle and the width of plastic zone as the index are determined. …”
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Identifying groundwater potential zones in a typical irrigation district using the geospatial technique and analytic hierarchy process by QianYu Song, Meng Ma, YuYu Liu, ZhongPeng Wang, WenYong Wu, ZhengHe Xu, Jianwen Xue

“…This research validates the efficacy of GIS and AHP in assessing GWPZs and offers a practical solution for regions lacking borehole data through the introduction of the MODFLOW.…”
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Groundwater and Subsidence Modeling Combining Geological and Multi-Satellite SAR Data over the Alto Guadalentín Aquifer (SE Spain) by Pablo Ezquerro, Carolina Guardiola-Albert, Gerardo Herrera, José Antonio Fernández-Merodo, Marta Béjar-Pizarro, Roberta Bonì

“…The geometry of the model was improved introducing a layer of less permeable and deformable soft soils derived from InSAR deformation and borehole data. The resulting aquifer system history of the piezometric level has been compared with ENVISAT deformation data to calculate a first-order relationship between groundwater changes, soft soil thickness, and surface deformation. …”
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Research on integrated 3D geological modeling of vector grid ——taking the core area of Tianfu New Area as an example by Ming Hao, Peiyao Xie, Huan Liu, Bo Wang, Fang Zhou, Xianglong Zeng, Yang Lei, Deng Pan, Guokun Liao

“…To solve this problem, this paper takes the core business district of Tianfu New District of Chengdu city as the research area and the urban geological survey of Chengdu city as the data base, adopts the borehole-based rapid modelling technology to build the urban 3D geological structure model, uses the grid segmentation and attribute interpolation to realise the model integration, and builds the vector grid integrated 3D geological model of ‘one model, multiple expressions’. …”
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Tracking Deep Meteoric Fluid Circulation Along a Regional Detachment Fault Using Field Infrared Spectroscopy by Tom Brikowski, Chinomso Madubuike, Jeremy McDowell, Greg Greywall

“…Burial metamorphism up to greenschist facies is indicated by steadily increasing ISM versus depth in core from a detachment-penetrating geothermal exploration borehole. A sharp decrease in ISM characterizes the detachment damage zone, accompanied by reappearance of smectite, zeolite, and abundant iron oxides, indicating much cooler alteration by meteoric-origin fluids. …”
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Design and Optimization Application of Cut Blasting Parameters for One-Time Completion of Blind Shaft by Yifeng Zhang, Yongsheng Jia, Nan Jiang, Quanming Xie, Lin Yuan, Yongbo Wu, Zehui Xu

“…A calculation model for the radius <i>R</i>₁ of the crushed zone and the radius <i>R</i>₂ of the fractured zone in rock under the combined action of borehole cutting stress waves and blasting gases is derived and established. …”
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Experimental Study on the Propagation Characteristics of Hydraulic Fracture in Clayey-Silt Sediments by Cheng Lu, Xuwen Qin, Wenjing Mao, Chao Ma, Lantao Geng, Lu Yu, Hang Bian, Fanle Meng, Rongrong Qi

“…A multimorphological fracture zone occurred near the borehole. Furthermore, the greater the confining pressure imposed, the greater the breakdown pressure was, and the microfracture arose more easily. …”
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Optimal Nozzle Structure for an Abrasive Gas Jet for Rock Breakage by Yong Liu, Juan Zhang, Tao Zhang, Huidong Zhang

“…They have potential uses in coal-bed methane exploration and drilling because of their one-of-a-kind nonliquid jet drilling, which avoids water invasion and borehole collapse. Improving the efficiency of rock breakage using abrasive gas jets is an essential precondition for future coal-bed methane exploration. …”
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Determination of the Engineering Properties of Submarine Soil Layers in the Bohai Sea Using the Piezocone Penetration Test by Bohong Wu, Guihe Wang, Jiong Li, Yu Wang, Baolin Liu

“…The engineering properties of submarine soil layers in the Bohai Sea, China, were investigated in this work. The Wison-APB borehole wireline piezocone penetration test (CPTU) system was used to conduct direct measurements of the cone tip resistance, sleeve friction, and pore pressure. …”
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Elastoplastic Analysis of Circular Opening Based on a New Strain-Softening Constitutive Model and Its Engineering Application in Hydraulic Fracturing by T. Yang, Q. S. Ye

“…From a practical point of view, it provides very important theoretical values for determining the fracture range of the borehole and providing a design value of the minimum pumping pressure in hydraulic fracturing engineering.…”
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Preliminary Results of the Kuznetsk Coal Basin Cover Deposits Radon Hazard Assessment by Timofey Leshukov, Konstantin Legoshchin, Elizaveta Baranova, Aleksey Larionov

“…The RAC was measured in two ways—by the sorption method on activated carbon and by the method of active sampling of soil gas from a borehole. At the same time, the role of meteorological conditions and the physical properties of the soil in the radon field was assessed. …”
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Groundwater Quality on the Adriatic Karst Island of Mljet (Croatia) and Its Implications on Water Supply by Staša Borović, Josip Terzić, Marco Pola

“…A total of 13 samples were analysed within the study: 10 samples were taken from blatinas, 1 from pit well, and 2 from borehole wells. All waters sampled from the lakes are of Na-Cl type. …”
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Rib Spalling 3D Model for Soft Coal Seam Faces with Large Mining Height in Protective Seam Mining: Theoretical and Numerical Analyses by Shuai Liu, Ke Yang, Tong Zhang, Chunan Tang

“…Similar simulation experiments, theoretical calculations, and borehole monitoring were used to comprehensively analyze the overburden fracture and movement after mining the lower protective seam. …”
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