Xueming Du
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View article: Shear Behavior of Curved Concrete Structures Repaired with Sustainability-Oriented Trenchless Polymer Grouting
Shear Behavior of Curved Concrete Structures Repaired with Sustainability-Oriented Trenchless Polymer Grouting Open
Urban underground infrastructure is increasingly challenged by material aging, environmental degradation, and structural deterioration. In response, trenchless polymer grouting technologies employing sustainability-oriented two-component f…
View article: Experimental Study on the Strengthening Effect of Polyaspartate Polyurea Lining on Concrete Pipes
Experimental Study on the Strengthening Effect of Polyaspartate Polyurea Lining on Concrete Pipes Open
In this study, the mechanical properties of a novel polyaspartate polyurea (PAEP) material and its effectiveness in enhancing the structural strength of concrete pipes with varying damage levels were experimentally investigated. Results sh…
View article: Editorial: Advances in Mathematical, Numerical and Artificial Intelligence Methods in Rock Engineering Applications
Editorial: Advances in Mathematical, Numerical and Artificial Intelligence Methods in Rock Engineering Applications Open
This editorial presents 12 research articles published in the Special Issue entitled “Advances in Mathematical, Numerical and Artificial Intelligence Methods in Rock Engineering” of the MDPI Mathematics journal [...]
View article: Optimal formulation design of silicate-modified polymer based grouting material for reinforcing silty fine sand stratum
Optimal formulation design of silicate-modified polymer based grouting material for reinforcing silty fine sand stratum Open
To address the material requirements for grouting reinforcement in fine sand strata, a novel silicate-modified polymer two-component grouting material was designed. In this material, the traditional organic polyol component of the two-comp…
View article: A Modified B-Differentiable Equation Method for the Seismic Analysis of Arch Dams Considering the Initial Strength of Contraction Joints
A Modified B-Differentiable Equation Method for the Seismic Analysis of Arch Dams Considering the Initial Strength of Contraction Joints Open
For arch dams, the joint surface has a certain bond strength after grouting the contraction joints, which can withstand the arch-wise tensile stress to a certain extent and influence the stress distribution of the dam blocks on both sides.…
View article: The Shear Behavior of the Curved Interface in Polyurethane-Concrete Composite Structures
The Shear Behavior of the Curved Interface in Polyurethane-Concrete Composite Structures Open
Polyurethane grouting trenchless technology has been widely applied to the rehabilitation of concealed defects in engineering structures. The interfacial properties between polyurethane and engineering structures are key factors determinin…
View article: Mechanical properties of the liner for strengthening steel pipe under the action of normal fault
Mechanical properties of the liner for strengthening steel pipe under the action of normal fault Open
Using liner pipe to rehabilitate pressure pipe can effectively improve the mechanical performance of the pipe. To explore the mechanical properties of the liner for repairing pressure pipes under the action of a normal fault, a refined thr…
View article: Mechanical response and stress equation of pressure pipe liner passing across circular corrosion
Mechanical response and stress equation of pressure pipe liner passing across circular corrosion Open
Corrosion is one of the most common forms of damage to pressure pipes. CIPP liner can improve the mechanical properties of the pipe with corrosion. It is very important to study the mechanical response of corrosion pipes rehabilitated by C…
View article: Limit state equation and failure pressure prediction model of pipeline with complex loading
Limit state equation and failure pressure prediction model of pipeline with complex loading Open
Assessing failure pressure is critical in determining pipeline integrity. Current research primarily concerns the buckling performance of pressurized pipelines subjected to a bending load or axial compression force, with some also looking …
View article: A State-of-the-Art Review on the Study of the Diffusion Mechanism of Fissure Grouting
A State-of-the-Art Review on the Study of the Diffusion Mechanism of Fissure Grouting Open
China is renowned for its extensive underground engineering projects and the complex geological and hydrological conditions it faces. Grouting treatment technology is widely employed in deep-buried mines and tunnels, where grouting paramet…
View article: Development of a sprayable PVA-fiber-enhanced cement mortar with high acid-corrosion resistance for pipeline rehabilitate
Development of a sprayable PVA-fiber-enhanced cement mortar with high acid-corrosion resistance for pipeline rehabilitate Open
The spraying method offers the advantages of environmental protection, convenient construction, and cost-effectiveness, making it widely used in pipeline structure repair. Given the complex service environment of pipelines, there is an urg…
View article: Characterization of Dimensional Variations in Turning Process for Multistep Rotary Shaft of High-Speed Motorized Spindle
Characterization of Dimensional Variations in Turning Process for Multistep Rotary Shaft of High-Speed Motorized Spindle Open
The surface accuracy of a multistep rotary shaft is very important in manufacturing and the assembly process of the high-speed motorized spindle of CNC machine tools, which is closely related to the machined dimensional variation induced b…
View article: Seepage Characteristics Analysis on Earth Dams Considering Polymer Cutoff Wall with Construction Defects
Seepage Characteristics Analysis on Earth Dams Considering Polymer Cutoff Wall with Construction Defects Open
In recent years, non-water reaction polymer grouting is a new technology for anti-seepage and reinforcement that has been widely employed in anti-seepage projects. However, there is little research on the consequence of defective polymer c…
View article: Reliability Modelling of Pipeline Failure under the Impact of Submarine Slides-Copula Method
Reliability Modelling of Pipeline Failure under the Impact of Submarine Slides-Copula Method Open
The instability of seabed slope sediments is the main factor influencing the safety of marine resource development. Therefore, to ensure the safe operation of submarine pipelines under complex and uncertain seabed rock and soil conditions,…
View article: A Scaled Boundary Finite-Element Method with B-Differentiable Equations for 3D Frictional Contact Problems
A Scaled Boundary Finite-Element Method with B-Differentiable Equations for 3D Frictional Contact Problems Open
Contact problems are among the most difficult issues in mathematics and are of crucial practical importance in engineering applications. This paper presents a scaled boundary finite-element method with B-differentiable equations for 3D fri…
View article: Diffusion Model of Parallel Plate Crack Grouting Based on Foaming Expansion Characteristics of Polymer Slurry
Diffusion Model of Parallel Plate Crack Grouting Based on Foaming Expansion Characteristics of Polymer Slurry Open
Polymers as a new chemical grouting material have been widely used in fractured rock mass; however, the understanding of polymer diffusion characteristics still needs to be further improved. In order to study the diffusion mechanism of foa…
View article: Experimental Study on the Damage Characteristics of Polymer Slabs Subjected to Air Contact and Close‐In Explosions
Experimental Study on the Damage Characteristics of Polymer Slabs Subjected to Air Contact and Close‐In Explosions Open
As a new antiseepage reinforcement material, polyurethane grouting material has been widely studied in terms of its static mechanical properties. However, research on its dynamic mechanical properties is relatively rare. In this research, …
View article: Damage Characteristics of Polymer Plates under the Impact of the Near‐Field and Contact Underwater Explosion
Damage Characteristics of Polymer Plates under the Impact of the Near‐Field and Contact Underwater Explosion Open
In order to study the damage characteristics of polymer plates under the impact of the underwater explosion, the underwater contact and near‐field explosion tests of polymer plates were conducted using different explosive quantities. In th…