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Journal of Civil and Hydraulic Engineering
JCGIRM
Journal of Civil and Hydraulic Engineering (JCHE)
JEMSE
ISSN (print): 2958-0579
ISSN (online): 2958-0587
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2024: Vol. 2
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The Journal of Civil and Hydraulic Engineering (JCHE) stands as a pivotal publication in the fields of civil and hydraulic engineering, renowned for its dedication to exploring the complexities and advancements in these disciplines. As a peer-reviewed, open-access journal, JCHE prides itself on fostering a rich academic dialogue that delves into the latest research, methodologies, and applications within civil and hydraulic engineering. The journal's unique focus extends beyond theoretical studies, offering insights into the practical and impactful aspects of engineering in our evolving world. Published quarterly by Acadlore, the journal typically releases its four issues in March, June, September, and December each year.

  • Professional Service - Every article submitted undergoes an intensive yet swift peer review and editing process, adhering to the highest publication standards.

  • Prompt Publication - Thanks to our proficiency in orchestrating the peer-review, editing, and production processes, all accepted articles see rapid publication.

  • Open Access - Every published article is instantly accessible to a global readership, allowing for uninhibited sharing across various platforms at any time.

Editor(s)-in-chief(1)
hongyang zhang
North China University of Water Resources and Electric Power, China
zhyncwu@163.com | website
Research interests: Hydraulic Engineering Experiment; Numerical Analysis; Safety Evaluation

Aims & Scope

Aims

The Journal of Civil and Hydraulic Engineering (JCHE) is a pioneering, international open-access journal dedicated to disseminating the latest advancements in civil and hydraulic engineering. Our mission is to cultivate a comprehensive understanding and innovative solutions in a range of subfields including civil structures and materials, hydraulic and geotechnical engineering, and water resources management. JCHE is committed to promoting the integration of theory and practice, encouraging the submission of original works in various formats such as reviews, regular research papers, short communications, and special issues on specific topics. Our focus is on the articulation of novel concepts, methodologies, and technologies that propel forward the knowledge and application in these interrelated fields.

The objective of JCHE is to be a leading source for in-depth research and insights, encouraging authors to present their findings with extensive detail for replication and broader understanding. Thus, the journal imposes no restrictions on the length of papers, emphasizing the importance of comprehensive documentation. Additional features of the journal include:

  • Every publication benefits from prominent indexing, ensuring widespread recognition.

  • A distinguished editorial team upholds unparalleled quality and broad appeal.

  • Seamless online discoverability of each article maximizes its global reach.

  • An author-centric and transparent publication process enhances submission experience.

Scope

The scope of JCHE encompasses a broad spectrum of topics within civil and hydraulic engineering, including but not limited to:

  • Civil structures and materials: Exploring the latest developments in construction materials and methodologies.

  • Geotechnical and foundation engineering: Investigating soil mechanics, foundation design, and their impact on structures.

  • Underground and tunnel engineering: Delving into the challenges and innovations in subterranean construction.

  • Road, bridge, and railway engineering: Focusing on the design, maintenance, and sustainability of transportation infrastructure.

  • Civil engineering disaster prevention: Addressing the strategies for mitigating natural and man-made disasters.

  • Building environment and energy application engineering: Exploring sustainable practices in building design and energy management.

  • Electrical and intelligent buildings: Integrating smart technologies for efficient and responsive building environments.

  • Engineering hydrology and water resource utilization: Examining the dynamics of water flow and its practical applications.

  • Agricultural and rural water conservancy: Focusing on water management in agricultural and rural contexts.

  • Hydraulics and river dynamics: Studying fluid mechanics and its application to river systems.

  • Harbor, waterway, and coastal engineering: Addressing the challenges of constructing and maintaining maritime infrastructure.

  • Hydraulic machinery and systems: Exploring the design and application of hydraulic systems.

  • Water resources and hydropower engineering: Delving into the sustainable harnessing of water for energy.

  • Ecological water conservancy: Investigating the intersection of ecology and water management for sustainable practices.

  • Smart water conservancy: Integrating technology for enhanced water management.

  • Risk assessment in hydraulic engineering: Analyzing the potential risks and safety measures in hydraulic projects.

  • Water economy: Studying the economic aspects of water resource management and policy.

  • Urban water supply and drainage science: Exploring the technologies and methodologies for urban water management.

  • Urban sewage treatment and resource utilization: Focusing on innovative approaches to waste water management and recycling.

  • Water environment pollution control and restoration: Addressing the challenges in maintaining and restoring water quality.

  • Regional and urban water ecological environment systems: Investigating the integration of water management in urban planning.

  • Risk control in water ecological environments: Assessing and mitigating risks in water-related ecosystems.

Articles
Recent Articles
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Open Access
Research article
Risk Assessment of High-grade Highway Construction Based on Combined Weighting and Fuzzy Mathematics
wei wu ,
mengmeng ma ,
xuezhong hu ,
bo xu ,
yufei chen ,
yutie jiao ,
zongkun li ,
wei ge ,
pieter van gelder
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Available online: 01-25-2024

Abstract

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High-grade highways are an important part of the modern comprehensive transportation system. However, due to frequent natural disasters, harsh meteorological conditions, and fragile geological environments, high-grade highway construction projects face significant risks, and how to specifically manage and control these construction risks to reduce them to a socially acceptable level has become a pressing technical issue. Therefore, this study combines the construction characteristics and risk features of high-grade highways, applies the Hall's three-dimensional structural theory to comprehensively identify potential risk factors from the dimensions of time, structure, and logic, and builds the logical dimension from four aspects: people, materials, environment, and management. To filter the main influencing factors, the Delphi method is adopted to construct a risk assessment indicator system, with the expert opinions fully taken into consideration. To address the subjectivity in the weight calculation process of risk assessment indicators, the Analytic Hierarchy Process (AHP) and Entropy Weight Method are used to calculate the subjective and objective weights, respectively. A combined weighting model is established based on game theory principles and is used to optimize the weights of the risk assessment indicators. In view of the fuzziness of risks during high-grade highway construction, fuzzy mathematics theory is introduced to construct the risk assessment model. In this study, this method is applied to the construction of the Elsiyah Highway to clarify the risk level of the project and propose targeted control measures. The results show that the risk level of the Elsiyah Highway project is relatively high. The risk level is conditionally acceptable, but measures must be taken to reduce the risks.

Abstract

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Decades of engineering practice have substantiated that the implementation of construction joints is a pivotal method for mitigating dam cracking. The integration of various joint types, notably transverse and induced joints, within roller-compacted concrete (RCC) arch dams has emerged as a promising strategy to curtail cracking and structural failure. This approach leverages the unique structural characteristics inherent to each joint type. Given the intricate, variable, and dynamic nature of thermal stress in RCC arch dams, the design process for crack prevention, particularly the configuration of induced joints, demands an accurate representation of the dam's operational conditions from construction through to service. Investigations in practical engineering contexts have revealed that the utilization of a contact unit simulation methodology, featuring an open/close iterative function for modeling the behavior of induced and transverse joints in RCC arch dams, proves effective. This method is complemented by the adoption of equivalent strength theory as the criterion for structural integrity assessment. A comprehensive process simulation encompassing the entire dam structure further enhances the efficacy of this approach. Such simulations facilitate a more granular examination of joint placement within the dam and the structural design of the joints themselves. As a result, induced joints can be optimally opened in alignment with design expectations, thereby alleviating tensile stress triggered by temperature reductions. This strategy assures superior construction quality of the dam's concrete body, contributing significantly to the longevity and safety of RCC arch dams.
Open Access
Research article
Regression Model for the Mechanical Properties of PVC-P Geomembranes with Scratch Damage
xianlei zhang ,
jianqun liu ,
wenhui zhang ,
hesong liu
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Available online: 12-30-2023

Abstract

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In response to the mechanical performance alterations of PVC-P geomembranes due to improper handling or subgrade particle action during construction and operation, a series of axial tensile tests on PVC-P geomembranes with various scratch damages were conducted. Multifactorial variance analysis was performed using Python, and a multivariate regression model for the fracture strength and elongation at break of scratched PVC-P geomembranes was developed using SPSS. The precision of the regression model was evaluated using parameters such as the coefficient of determination (R2), mean absolute error (MAE), mean absolute percentage error (MAPE), and root mean square error (RMSE). The results indicated that the fracture strength and elongation at break of PVC-P geomembranes are significantly affected by a combination of scratch angle, length, and depth. The impact on elongation at break is greater than on fracture strength, with the scratch angle having the most significant effect. The developed multivariate regression model yielded R2 values of 0.98 and 0.97 for fracture strength and elongation at break, respectively. The MAEs were 0.62 kN/m and 7.96%, and the MAPEs were 3.06% and 5.13%, respectively. The RMSEs were 0.84 kN/m and 12.08%. The high fitting accuracy of the model suggests its utility for evaluating the mechanical performance of PVC-P geomembranes with scratch damage.

Abstract

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This study introduces a novel methodology for optimizing the design of small dams in the Western Desert of Iraq, a region characterized by its vast expanse and significant flood water influx, particularly in the Horan Valley. The approach integrates Geographic Information Systems (GIS) with a custom-developed Visual Basic program, termed the Optimal Height and Location Model (OHALM), to determine the most effective dam height and location. The initial phase of the study involved utilizing GIS to identify potential dam sites in Horan Valley, based on a set of defined criteria. Subsequently, OHALM was employed to ascertain the optimal dam height, taking into account economic factors such as minimal evaporation losses and maximal water storage capacity. The study culminated in the selection of 13 proposed small dam sites, with height estimations ranging between 12.5 to 14 meters, allowing for a total water storage capacity of approximately 303 million cubic meters. This capacity expansion resulted in an increase of the valley's water body area from 15 square kilometers to 90 square kilometers. Comparative analysis of these proposed dam heights with those of existing structures in the valley revealed a relative variance of 10.4% in the upstream, 7.2% in the midstream, and a comparable percentage in the downstream areas. The research highlights the efficacy of integrating GIS and Visual Basic programming for the strategic development of water resource management systems, particularly in arid regions. This innovative approach demonstrates the potential for significant improvements in water storage and management, addressing the critical need for sustainable water resources in arid environments.

Open Access
Research article
Enhancing Stone Mastic Asphalt through the Integration of Waste Paper and Cement Kiln Dust
shireen sulaiman mohammed naser ,
mohsen seyedi ,
shakir al-busaltan
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Available online: 12-30-2023

Abstract

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In the realm of civil engineering and industrial construction, the infusion of waste materials into road pavements has emerged as a pivotal strategy for augmenting the attributes of asphalt mixtures while concurrently mitigating the environmental repercussions associated with waste. This investigation delineates a dry method for the preliminary treatment of waste paper, preceding its amalgamation into asphalt mixtures. The focal point is the incorporation of waste paper and Cement Kiln Dust (CKD) as modifiers in Stone Mastic Asphalt (SMA). It is posited that the inclusion of waste paper fibers can substantially elevate the SMA's flexibility and crack resistance. Simultaneously, CKD is purported to bolster the asphalt's strength and durability through its cementitious characteristics. A series of SMA blends were formulated, integrating waste paper and CKD in varied proportions ranging from 0.2% to 1% by weight. Subsequent evaluations encompassed analyses of air voids, density, drain-down characteristics, Indirect Tensile Strength (ITS), and Marshall Stability. The outcomes revealed that the drain-down test exhibited enhancements in volumetric parameters, notably density and air voids. Concomitantly, there was a 33% increase in Marshall Stability and a 37% improvement in ITS. Additional advancements were observed in Marshall Flow, Tensile Strength Ratio (TSR), and skid resistance. In summation, this study establishes that waste paper, when appropriately treated and amalgamated with CKD, can be efficaciously utilized in SMA mixes, yielding mixtures with superior volumetric and mechanical properties. This methodology not only augments the stiffness and minimizes binder drainage but also enhances rutting resistance. Most crucially, it paves the way for sustainable and ethical practices in the reuse and recycling of waste materials.

Abstract

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In addressing the challenge of precise lateral attitude adjustment during high-altitude hoisting of non-standard steel structures, such as the rotating platforms in rocket launch towers, a novel approach involving an adjustable counterweight balance beam has been developed. This method entails the strategic placement of movable counterweight blocks on the balance beam, thereby enabling the manipulation of the gravity center's distribution for refined posture control of the load suspended beneath the beam. A theoretical model encompassing static balance and deformation coordination has been formulated for this adjustable balance beam system. Utilizing Matlab for computational analysis, the model elucidates the effects of various parameters, including the counterweight block position, block weight, lifted load, sling length, and balance beam length on the beam's attitude. The findings suggest that the beam's performance can be optimized in accordance with the weight of the load. Through the judicious design of the sling and beam lengths, as well as the counterweight block mass, continuous fine-tuning of the hoisting posture is achievable via progressive adjustments of the counterweight block's position on the balance beam. The theoretical calculations and analyses derived from this study offer valuable insights for the design of new balance beams and the enhancement of hoisting operations, catering to the specific demands of high-precision, high-altitude lifting tasks.

Abstract

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In regions characterized by extreme cold and elevated altitudes, notably in the northwest, the mechanical characteristics of construction materials such as Ultra-High Performance Concrete (UHPC) are critically impacted by ambient temperatures. This study investigates the mechanical properties of UHPC subjected to low-temperature curing environments, conducting uni-axial compressive and splitting tensile strength tests on UHPC specimens, which comprise water, dry mix, and steel fibers. These specimens were cured at varied temperatures (-10℃, -5℃, 5℃, 10℃). Utilizing damage theory principles, the loss rate in compressive strength of UHPC post-curing was quantified as a damage indicator, revealing internal degradation. A predictive model for damage under low-temperature maintenance was developed, grounded in the two-parameter Weibull probability distribution and empirical damage models. Parameter estimation for this model was achieved through the least squares method, informed by experimental data. The findings indicate a rapid increase in UHPC’s mechanical strength at all curing temperatures, with 7-day strength achieving approximately 90% of its 28-day counterpart. A positive correlation was observed between the mechanical strength of UHPC, curing temperature, and age. Despite a reduction in mechanical strength due to low-temperature curing, UHPC was found to attain anticipated strength levels suitable for construction in cold environments. The proposed model for predicting UHPC damage under low-temperature conditions demonstrated efficacy in estimating the strength loss rate, thereby offering substantial technical support for UHPC’s application in northwest regions.

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