A Novel Mathematical Model for Fracturing Effect Evaluation Based on Early Flowback Data in Shale Oil Reservoirs by Yuhan Wang, Zhengdong Lei, Zhenhua Xu, Jie Liu, Xiaokun Zhang, Erhui Luo, Yuqi Liu, Pengcheng Liu

“…The interpretation results of this novel model are more accurate, making it an effective way to evaluate the hydraulic fracture parameters and transformation effect, and it has guiding significance for the evaluation of the hydraulic fracturing effect in the field.…”
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A Control Method of High Impact Energy and Cosimulation in Powder High-Velocity Compaction by Dongdong You, Dehui Liu, Hangjian Guan, Qingyun Huang, Zhiyu Xiao, Chao Yang

“…The high impact energy is achieved by modifying existing equipment, and the hydraulic control system is developed to implement the automatic control of the energy produced from the disc springs. …”
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Characteristics of the Interface between Bamboo Grids and Reinforced Soil of High-Filled Embankments in Loess Areas by Jingwei Zhang, Jia Li, Julong Wang, Shuaiqi Xu

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A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis by Tiantian Ma, Changfu Wei, Pan Chen, Huihui Tian, De'an Sun

“…Unlike its saturated counterparts, the mechanical behavior of an unsaturated soil depends not only upon its stress history but also upon its hydraulic history. In this paper, a soil-water characteristic relationship which is capable of describing the effect of capillary hysteresis is introduced to characterize the influence of hydraulic history on the skeletal deformation. …”
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Theoretical Study on the Characteristics of Critical Heat Flux in Rectangular Channel of Natural Circulation under Motion Conditions by Mengmeng Xi, Rong Cai, Xiao Chu, Fan Yang, Xu Ran, Zhifang Qiu, Jian Deng, Wenxi Tian

“…The results show that the additional acceleration field generated by ocean conditions will affect the thermal hydraulic parameters of the natural circulation system, that is, the external macroscopic thermal hydraulic field. …”
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Effect of Cobble Content on the Shear Behaviour of Sand-Cobble Mixtures by Chuang Wang, Jinyu Dong, Zhiquan Huang, Jianjun Zhou, Jihong Yang

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Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions by Zepeng Sun, Yongli Wang, Zhifu Wei, Yue Ni, Baoxiang Wu, Jing Li, Wenhua Fan, Gailing Wang, Yunxiao Li

“…Hydraulic fracturing is widely applied to economic gas production from shale reservoirs, but the effect of the shale mineral composition on the physical-chemical reactions during hydraulic fracturing is still poorly understood. …”
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Kinetic simulation of uranium migration in granite fissure media of beishan, gansu, China: A case study based on the Laplace transform and inverse transform methods by Xianzhe Duan, Cong Du, Nan Li, Jiaxin Duan, Zhenping Tang

“…Based on the numerical methods, the kinetic migration of nuclide U-238 in the fissure media of granite was simulated, and the effects of parameters such as fissure width, hydraulic gradient, diffusible area ratio and rock porosity on the migration of U-238 were investigated. …”
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Application Research on Three-dimension Design of Gate Station Engineering Based on BIM Technology by LI Rang, HUANG Jinpeng, HU Xubao, CHEN Weihua, ZHANG Zhouwen

“…With the continuous promotion of BIM technology in civil and hydraulic engineering in China,the civil and hydraulic design industry has ushered in a new wave of technologies.Given the typical gate station projects in the Pearl River Delta region,the design and application research based on BIM is carried out.The concept of BIM technology and its application status in the water conservancy and hydropower industry are analyzed.Besides,the preparatory work before carrying out BIM design for gate station projects is described,and the various applications of BIM design such as parametric modeling,calculation and analysis,drawing and quantity,and scheme reporting are also introduced.Through this practice,the effectiveness of BIM technology in gate station engineering design is verified,which provides BIM application ideas for related engineering projects.…”
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Design and Study of Pre-stretching and Disassembling Device for Double-row Chain by Wang Shukun, Xu Yefeng, Liu Dongliang, Zhao Xudong, Shen Jiajun

“…The pre-stretching module uses hydraulic cylinder to load to move the associated sprockets and then pre-stretching sprocket between groups. …”
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Risk Control Platform of Safety Production Based on Digital Twin by ZHANG Bo, ZHAO Songpeng

“…Therefore,this paper studies the characteristics and rules of safety production in operation management units of hydraulic engineering.Additionally,a safety production risk management and control platform framework based on digital twin is built to realize intelligent supervision of safety production risks.Taking the Baise water conservancy project as an example,this paper establishes a safe production risk control platform for this project.By achieving the existence of two safety production risk control scenarios of hydraulic engineering based on digital twin and operation,the feasibility of safety production risk control platforms based on digital twin is demonstrated.Meanwhile,a new idea is proposed for subsequent research on safety production risks,which is of certain guiding significance.…”
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Detecting Variation Trends of Temperature and Precipitation for the Dadu River Basin, China by Ying Wu, Wensheng Wang, Guoqing Wang

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Définir l’intervention d’André Le Nôtre au château de Meudon : l’exemple d’un réseau hydraulique ambitieux et sophistiqué by Romane Mazzieri

“…This inventory of maps and plans was also used to determine the characteristics of the hydraulic network of the gardens of Meudon, which is represented and detailed there. …”
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Updating Soil Spatial Variability and Reducing Uncertainty in Soil Excavations by Kriging and Ensemble Kalman Filter by Yajun Li, Kang Liu

“…., the ensemble Kalman filter (EnKF)) to reduce the uncertainty of soil parameters, when measurements are related to performance, such as inflow, hydraulic head, and deformation. In addition, there are also direct measurements, such as CPT measurements, where parameters (i.e., tip resistance and sleeve friction) can be directly correlated with, e.g., soil deformation and/or strength parameters, where conditional simulation via constrained random fields can be used to improve the estimation of the spatial distribution of parameters. …”
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Advective Displacement Method for the Characterisation of Pore Water Chemistry and Transport Properties in Claystone by Urs Mäder

“…The advective displacement method applies large hydraulic gradients to a confined rock core sample to yield small aliquots of the preserved in situ pore water, applicable to aquitard rocks with hydraulic conductivities as low as 10−14 m/s. …”
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Modeling and Simulation of Track Clamp Jacking System based on Bond Graph theory by Chen Suli, Fan Yansong, Wang Wei, Ren Fushen

“…When the gear rack drilling rig for slant drilling is working,string collar need to accurate alignment through certain angle of tilt and different position,and move up and down relative to the derrick,the oilwell string makeup and breakout device such as the traditional hydraulic tongs and iron roughneck is not suitable for it. …”
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Experimental study and model prediction of the influence of different factors on the mechanical properties of saline clay by Hui Cheng, Lingkai Zhang, Chong Shi, Pei Pei Fan

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Fuzzy Terminal Sliding Mode Control with Compound Reaching Law and Time Delay Estimation for HDU of Legged Robot by Kaixian Ba, Bin Yu, Yaliang Liu, Zhengguo Jin, Zhengjie Gao, Junxiao Zhang, Xiangdong Kong

“…Hydraulic drive mode enables legged robots to have excellent characteristics, such as greater power-to-weight ratios, higher load capacities, and faster response speeds than other robots. …”
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A Study on Remote Monitoring of NO_x Emissions from Inland Vessels by Mengtao Deng, Jianbo Hu, Zhaoyu Qi, Shitao Peng

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Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco by Mohmmed Elgettafi, Samia Rochdane, Abdenabi Elmandour, Juan M. Lorenzo, Mahjoub Himi, Albert Casas

“…Stable isotopes are segregated into two groups: Group1 coexists with high hydraulic parameters and is depleted of δ18O and δ2H; Group2 coexists with low hydraulic parameters, and is enriched with δ18O and δ2H. …”
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