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KSCE Journal of Civil Engineering OnlineFirst articles

19-02-2024 | Construction Management

Enhancing Project Performance: Particle Swarm Optimization for Optimal Budget Allocation and Maintenance Scheduling

This study aims to help project-oriented organizations manage their portfolios and arrive at an optimum budget allocation. In this study, the budget allocation process in a portfolio of projects is mathematically formulated. The interactions …

Authors:
Abolfazl Arzanlou, J. Majrouhi Sardroud

17-02-2024 | Structural Engineering

Application of Impact Force Response Signal to Non-destructive Evaluation of Concrete Compressive Strength in Field Structures

This study aimed to evaluate the feasibility and usefulness of using the signal created by the impact force after the first impact of an object and subsequent impact of rebounds to evaluate the concrete’s compressive strength non-destructively.

Authors:
Moorak Son, Woori Jeong

17-02-2024 | Water Resources and Hydrologic Engineering

Quantifying Uncertainty in Hydrological Drought Index Using Calibrated SWAT Model

The hydrological model requires precise parameter calibration to reflect the basin characteristics properly. The optimum parameter values depend highly on the runoff characteristics; thus, the simulated runoff data affects the uncertainty in …

Authors:
Jin Hyuck Kim, Eun-Sung Chung, Jae Yeol Song, Shamsuddin Shahid

17-02-2024 | Structural Engineering

Development of a Mutation Operator in a Real-Coded Genetic Algorithm for Bridge Model Optimization

A mutation operator in a real-coded genetic algorithm is developed and applied for efficient bridge-model optimization. A mutation operator that changes uniformly or dynamically with a crossover operator is proposed to address optimization …

Authors:
Jaecheon Kim, Manseok Han, Soobong Shin

15-02-2024 | Structural Engineering

FE Analysis on Size Effect in Torsional Behavior of Rectangular RC Beams with and Without FRP Strengthening

Although torsion is usually considered a secondary consideration in structural design, it can lead to failures, especially in structures with irregular geometry exposed to seismic forces or in unique situations. While some studies have explored …

Authors:
Mojtaba Shokri, Mahmoud Edalati, S. Mohammad Mirhosseini, Ehsanollah Zeighami

15-02-2024 | Structural Engineering

The Effects of Particle Packing and Inter-particle Force on Rheological Behaviors of Binary Cement Paste

This article aims to study the effects of particle packing and inter-particle force on the rheological behaviors of binary cement paste. Fly ash (FA), ground granulated blast furnace slag (GGBFS), and limestone powder (LP) were added by 10–40% of …

Authors:
Huaqiang Yuan, Chuanyi Ma, Jiemin Liu, Zhi Ge, Yifeng Ling, Hongzhi Zhang, Abdullah M. Tawfek, Renjuan Sun

15-02-2024 | Geotechnical Engineering

Deformation Characteristics of Soft Soil Induced by Deep Excavation and Its Impact on Adjacent Tunnels: A Case Study in Shanghai

This research aims to comprehensively study the deformation characteristics of an excavation pit of 7,600 m2 (117 m long, 65 m wide and 20.8 m deep) in soft clay in Shanghai, China. The deformation characteristics of the mixing pile in both the …

Authors:
Tao Peng, Dongxing Ren, Chao Kang, Huanhuan Liu, Peng Xue, Hai Huang

15-02-2024 | Structural Engineering

Seismic Performance Management of Aged Road Facilities in Korea: Part 1 — Fragility Curves

This study aimed to develop a decision-making support system for managing the seismic performance of aged road facilities in a road network, based on their evaluated seismic performance. This study was divided into two parts. In Part 1, seismic …

Authors:
Soobong Shin, Ickhyun Kim, Ki-Il Song, Duhee Park, Byungmin Kim, Hyojoon An, Kee-Jeung Hong

15-02-2024 | Construction Management

Dismantling Quantity Estimation for Nuclear Power Plant: Scan-to-BIM versus Conventional Method

This paper presents a case study of using Scan-to-BIM technology for evaluating the quantity and cost of a nuclear power plant during the decommissioning process. The study proposes a process for applying Scan-to-BIM in the dismantling stage and …

Authors:
Jaeseop Shin, Jeongwoog Song

15-02-2024 | Geotechnical Engineering

Overtopping Failure Process and Core Wall Fracture Mechanism of a New Concrete Core Wall Dam

Concrete core wall dams have emerged as a cost-effective alternative to the reconstruction of old dams. However, the flooding mechanism and flood line of these dams differ significantly from traditional earth and rockfill dams due to the concrete …

Authors:
You-ming Zuo, Jia-wen Zhou, Hai-bo Li, Jie-yuan Zhang, Chang Tan, Xiao-dong Wang, Yu-shan Wang, Yue Zhou

15-02-2024 | Structural Engineering

Research on the Sleeve Grouting Fullness Testing of Prefabricated Structures Based on Piezoelectric Method

The traditional methods for testing the sleeve grouting fullness of prefabricated structures generally face the technical challenges such as high detection cost and inability to detect in real-time. In order to solve these technical challenges …

Authors:
Yongxiao Du, Xiaoli Sun, Jun Yang, Zhiqiang Wu, Decun Bian

15-02-2024 | Structural Engineering

Seismic Performance Analysis of Semi-rigid Steel Frame Based on Panel Zone Mechanical Characteristics of the Joint Experiment Study

The panel zone, as an important part of the semi-rigid connection (SRC), can effectively affect the force transfer mechanism of the connection. This study aims to evaluate the panel zone mechanical characteristics through test on end-plate …

Authors:
Shengcan Lu, Minrong Wang, Xiangxi Han, Tulong Yin

15-02-2024 | Information Technology

Optimization of Microphone Placement for Audio-based Modeling of Construction Jobsites

Heavy equipment is a crucial resource in the construction industry. Recent studies have shown that analyzing the sound patterns generated by construction machinery can be an effective way to monitor their performance and detect potential …

Authors:
Maria Vitoria Bini Farias, Yinhu Wang, Abbas Rashidi, Nikola Marković

15-02-2024 | Water Resources and Hydrologic Engineering

DMA Characteristic Identification for Efficient Water Loss Management: Case Study of MWA Pipe Network, Thailand

This study is designed to categorize essential characteristics of District Metered Area (DMA), focusing on aspects related to pipe management such as real water loss, pipe density, and customer density. Our objective is to delineate the influence …

Authors:
Manatsawee Nawik, Suwatana Chittaladakorn, Sitang Pilailar

15-02-2024 | Tunnel Engineering

A Novel Calculation Model for the Permeability Coefficient of Soils Conditioned with Foam and Bentonite Slurry

Both foam and bentonite slurry are commonly employed in soil conditioning to prevent water spewing during earth pressure balance (EPB) shield tunnelling. A novel calculation model to estimate the permeability coefficient of soils conditioned with …

Authors:
Fanlin Ling, Shuying Wang, Xiangcou Zheng, Jiazheng Zhong, Yujia Chen

15-02-2024 | Geotechnical Engineering

Seismic Bearing Capacity of Strip Footings with Modified Pseudo-dynamic Method

Current research has shown a nonlinear trend in the failure of soil, and the single tangent method is commonly adopted when coping with nonlinear problems of soil failure. However, the method equates a nonlinear criterion to an optimizable linear …

Authors:
Xudong Kang, Jianqun Zhu, Lili Liu

08-02-2024 | Geotechnical Engineering

Slope Stability Analysis of Xanthan Gum Biopolymer Treated Laterite Soil Using Plaxis Limit Equilibrium Method (PLAXIS LE)

The landslides or slope failures are responsible for many fatalities and significant delays in travel by blocking the roads. The soil properties such as cohesiveness, angle of internal friction, and bulk unit weight are the primary parameters …

Authors:
Shailendra P. Banne, Arun W. Dhawale, Rajkumar B. Patil, Manjitsinh Girase, Chinmay Kulkarni, Mayuri Dake, Simran Khan

08-02-2024 | Water Resources and Hydrologic Engineering

Morphological Dune Mapping in Shallow Alluvial Stream Using UAV-based Hyperspectral Images

Characterizing morphological features in shallow streams such as dunes and ripples is vital to studies on fluvial geomorphology and in-stream habitat assessments of stream ecology. The paper aimed to examine the feasibility of a conventional …

Authors:
Hojun You, Dongsu Kim, Yeonghwa Gwon

08-02-2024 | Geotechnical Engineering

An Experimental on Filtration and Clogging of Geotextile Filters around Drain Pipes in Fine Tailings

Needle-punched nonwoven geotextiles have been used as filters for decades in mine drainage systems. But the physical clogging of geotextiles by fine particles has continued to receive increasing attention. In this study, the permeation …

Authors:
Dong-dong Li, Xuan Cui, Jing-qi Huang, Ya-bing Han

08-02-2024 | Hydraulic Engineering

Experimental and Theoretical Study of Seepage Models under Confining Pressure for a Single Rock Fracture

The engineering water inrush events were affected by the hydraulic characteristics of the fractures. In order to quantitatively study the seepage characteristics of the fractures, the experimental analysis of artificial fracture of shale was …

Authors:
Peng Zhou, Haichun Ma, Jingping Wang, Jiazhong Qian