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KSCE Journal of Civil Engineering OnlineFirst articles

28.02.2024 | Geotechnical Engineering

Special Case on Landslide in Balikpapan, Indonesia Viewed from Crack Soil Approach

This research aims to determine the impact of cracked soil and its corresponding variations on slope stability within two distinct areas exhibiting diverse topographic conditions, both of which have previously encountered failure in Karang Joang …

verfasst von:
Putu Tantri K. Sari, Indrasurya B. Mochtar, Yudhi Lastiasih

28.02.2024 | Water Resources and Hydrologic Engineering

Study on the Moisture and Thermal Characteristics of Vegetated Expansive Soil Slopes

The moisture and thermal characteristics of expansive soil slopes have a significant impact on the strength and overall stability of the soil. In this study, the medium-strength expansive soil vegetated slope in Baise, Guangxi, was taken as the …

verfasst von:
Quan Shen, Yidan Zhang, Canrong Xie, Chengli Zhang, Chaohui Wang

28.02.2024 | Water Resources and Hydrologic Engineering

Optimal Design of Subsurface Conveyance System Based Bio-Ecological Drainage System Simulation

As urbanization grows in size, the problems of flash floods and water pollution are expected to worsen, so viable and cost-effective solutions are essential to reduce the impacts. The Bio-Ecological Drainage System (BIOECODS) was developed to …

verfasst von:
Sai Hin Lai, Ren Jie Chin, Eugene Zhen Xiang Soo, Lloyd Ling, Hamed Benisi Ghadim

28.02.2024 | Geotechnical Engineering

Validating Railway Infrastructure Deformation Monitoring: A Comparative Analysis of Field Data and TerraSAR-X PS-InSAR Results

Railway infrastructure maintenance faces a challenge posed by the laborious task of monitoring widespread deformation, which is critical for ensuring safety. This study utilized the Persistent Scatterer Interferometric Synthetic Aperture Radar …

verfasst von:
Byung-Kyu Kim, Winter Kim, Changgil Lee, Mintaek Yoo, Ilhwa Lee

24.02.2024 | Structural Engineering

Effect of Skew Angle on Seismic Response of Irregular Concrete Bridges with Horizontal Curve

This article is a parametric study of 315 reinforced concrete bridges including 45 straight and 270 curved bridges for different geometrical conditions in different layouts, which were stimulated by earthquake near-field records. Past experiences …

verfasst von:
Behzad Haseli, Gholamreza Nouri, Mohammadreza Mozaffarpour Taromi, Mohammad Bahari, Ehsan Adili, Armin Keyghobadi

24.02.2024 | Geotechnical Engineering

Multivariate Experimental Study on EICP Combined with Polypropylene Fiber Solidified Desert Sand

In this study, Enzyme-Induced Carbonate Precipitation (EICP) combined with polypropylene fiber technology was used to solidify desert sand, the orthogonal theory was used to design the different levels of the five test variables of cementation …

verfasst von:
Meng Cui, Huihui Xiong, Suying Lv, Junjie Zheng, Mingjuan Cui, Chen Zeng

24.02.2024 | Tunnel Engineering

Uniaxial Compression Testing of Sandstone under Microscope: Damage Characteristics and Failure Mechanisms

A compression module system placed under a microscope was utilized to conduct uniaxial compression testing of sandstone samples. The test system can acquire the image of crack propagation on the specimen surface in real time. The focus of this …

verfasst von:
Huarui Hu, Binwei Xia, Canan Chen, Jiajun Peng, Shirong Cao, Yangyang Li

24.02.2024 | Construction Management

Multi-Camera People Counting Using a Queue-Buffer Algorithm for Effective Search and Rescue in Building Disasters

Over the past decade, the frequency of building disasters has been concerning. However, search and rescue operations often encounter challenges due to limited information, resulting in delays or inadequate assistance for occupants trapped inside …

verfasst von:
Chanhyuk Park, Hwikyung Chun, Seokho Chi

24.02.2024 | Tunnel Engineering

Failure Mechanism of Anchored Roadway Surrounding Rocks under Near-Field Dynamic Disturbance

Aiming at roadway rockbursts induced by near-field dynamic disturbances, this study explored the mechanical response and failure mechanism of anchored roadway surrounding rocks under this condition through the similarity simulation experiment and …

verfasst von:
Zhengyi Wang, Linming Dou, Guifeng Wang, Jiang He, Jincheng Hu

24.02.2024 | Tunnel Engineering

Three-Dimensional Face Stability Assessments of Seismic Tunnels in Weak Rock Masses

The face stability assessments of seismic tunnels have been complicated and crucial problems. To solve this issue, an advanced three-dimensional (3D) rotational failure mechanism with considering seismic effects is developed to assess the seismic …

verfasst von:
Jinfeng Zou, Shiwei Li, Guanghui Chen

24.02.2024 | Structural Engineering

Study on Hydration and Hardening Performance of Coal Gangue-Steel Slag-Cement Composite Cementitious Material

In this paper, coal gangue powder (CGP) was used to replace 30% of the cement weight. The dosage of steel slag powder (SSP) was 5%, 10%, 15%, 20%, and 25% of the coal gangue weight. The CGP-SSP-cement mortars and pastes were prepared. The …

verfasst von:
Xiaozhi Zhao, Liang Wang, Chenglong Wang, Jian Xu, Wei Hu, Qi Li, Hao Wang

23.02.2024 | Geotechnical Engineering

Experimental Study on the Bearing Characteristics of Rigid-Flexible Long-Short Pile Composite Foundations in Thick Collapsible Loess Areas

The bearing and deformation characteristics of embankments with rigid-flexible long-short pile composite foundations (RLPCFs) in thick collapsible loess strata are not yet accurately understood. In this study, a large-scale field experiment was …

verfasst von:
Fei Gao, Xuansheng Cheng, Wenfang Wang, Qingfeng Lv, Xiangjun Cheng

23.02.2024 | Geotechnical Engineering

Discrete Element Simulation of Macro and Micro Mechanical Properties of Round Gravel Material under Triaxial Stress

In this study, the effects of relative density and confining pressure on the shear characteristics of round gravel are investigated using a large-scale triaxial apparatus and the discrete element method. A simple and efficient numerical method for …

verfasst von:
Shaokun Ma, Haijun Huang, Fapai Tian, Jian Gong, Jiabing Zhang, Zhibo Duan

23.02.2024 | Geotechnical Engineering

Experimental Study on Compressibility and Microstructure of Loess Solidified by Permeable Polymer

This study aims to investigate the compressive and microstructural properties of loess before and after treatment with a new permeable polymer. To enhance the compressive properties of loess, specimens were infused with the new polymer, and …

verfasst von:
Chengchao Guo, Xiaodong Yang, Weifan Zhao

23.02.2024 | Construction Management

Impacts of Management Approaches on Conflict Resolution Satisfaction: Conflict Strength Matters

Conflict is inevitable in construction projects, and satisfactory conflict resolution is vital for maintaining amicable relationships and accomplishing project goals. This study aims to explain satisfaction with conflict resolution outcomes by …

verfasst von:
Lihan Zhang, Jianmin Lou, Yongcheng Fu, Tianhuan Ding

23.02.2024 | Structural Engineering

Pressure Power Spectra of a ‘Z’ Shaped in Plan Tall Building under Transient Wind Environment

This study foresees the behavior of a ‘Z’ shaped in plan tall building under transient wind storms using unsteady Reynolds-averaged Navier Stokes (URANS) Computational Fluid Dynamics (CFD) technique. Numerical simulations are carried out using …

verfasst von:
Rajdip Paul, Sujit Kumar Dalui

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 …

verfasst von:
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.

verfasst von:
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 …

verfasst von:
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 …

verfasst von:
Jaecheon Kim, Manseok Han, Soobong Shin