Papers by Mustaffa Anjang Ahmad
Computer application had been a tremendous asset to a construction company since information tech... more Computer application had been a tremendous asset to a construction company since information technology raised rapidly in the era of digital. Computer provide a clean sweep in surveying field by doing design, running analysis, and compute result in a split second which also reduce possibilities of making mistake in the surveying calculation. For this project, Microsoft Office Excel 2003 and Microsoft Visual Basic 6.0 be applied to develop software to be used in engineering survey that named as 'Electronic Survey Solutions Version 2 (ESSol-V2)'. Engineering survey module for leveling, traverse booking, tacheometry, design of road curve (horizontal and vertical curves), omitted line computations and traverse by radiation is integrated in ESSol-V2 programming. The result is digital electronic forms where it can be used by surveyors to solve their engineering survey calculation. ESSol-V2 evolved from an older version of digital electronic forms of survey, accompanying the revolution in this program was an additional function of surveying which makes it to become more friendly yet powerful for surveying.
International Journal of Sustainable Construction Engineering and Technology
Jakarta City located at the northern part of Java Island has a potential liquefaction since there... more Jakarta City located at the northern part of Java Island has a potential liquefaction since there are many soil layers as a qualified as liquefaction susceptible, such as: silty sand and sand. The effects of liquefaction occurrence on saturated silty sand and sand during earthquakes can have potential to damage structure. A case history using CPT-data randomly taken from Central Jakarta region was compiled and back analyzed to investigated probability of liquefaction. The present study focuses on the probabilistic evaluation of liquefaction potential of this region, considering silty sand and sand layers related to CPT soundings. Silty sand was found as a thin layer or a lens between silty clay, silt and clay which was classified as a soft soil layer, and the sand layer is mostly found as a hard bottom layer. Normalization of tip CPT resistance (qc) corrected by an effective overburden stress was not only used to thick layer of silty sand and sand, but also it was applied to determi...
Civil Engineering Journal
Batu Tourism City is located in a mountainous area, so based on information from the BNPB, it has... more Batu Tourism City is located in a mountainous area, so based on information from the BNPB, it has quite a large potential for landslides. Landslide hazards can frequently disrupt public traffic due to road cuts. Landslide mapping digitally will contribute to handling and mitigation activities since the database can be updated in real time to anticipate landslide hazards. This study aims to map landslide-prone areas located in the Payung zone, Songgokerto Village, and Batu City. Landslide areas can be determined by mapping analysis using GIS software. GIS can determine the classification level for a landslide susceptible area. Some input data that will influence landslides, such as rainfall, wind, earthquakes, etc., was collected as the control parameters. All parts of the study area could be classified as areas with minor, medium, and major potential for landslides. Primary data are collected from geo-surveying (aerial images) using drone devices for interpretation of landslide susc...
Jurnal Kejuruteraan, May 30, 2021
The present study aimed to identify drainage pollution at Parit Raja, Johor in accordance to the ... more The present study aimed to identify drainage pollution at Parit Raja, Johor in accordance to the Water Quality Index (WQI) and based on Geographic Information System (GIS) data analysis. A total of 18 sampling stations at six drainage ditches were selected to be sampling points. The parameters investigated included Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Suspended Solid (SS), Ammonia Nitrogen (AN) and pH. ArcGIS software was selected and the water quality data were gathered and digitized in the GIS as data storage system in order to develop database. The results revealed that 13 stations were categorized as polluted, 5 stations classified as slightly polluted. These findings indicated that GIS have an ability to provide interactive visual and attribute information effectively in order to improve water quality management system. Therefore, GIS can be applied on a big study area and this is useful for wastewater management by authorities.
Applied Research on Civil Engineering and Environment (ARCEE), 2021
Site investigation works is very essential in every construction design work. Soil type and shear... more Site investigation works is very essential in every construction design work. Soil type and shear strength are the important parameter to design foundation system of insfrastructure project. Site investigations are not only costly, but also time consuming. There many geotechnical engineers tend to reduce site investigation works to decrease the construction cost. Based on these problems, the study was developed on site investigation database for Pulau Indah, Klang, Malaysia using Geographical Information System (GIS). Research study applied the Thiessen polygon method to obtain existing some informations type of soil and shear strength on this site. The research result was the database and map information. These data can be used for civil engineers to obtain site informations of soil type and shear strength parameter for future construction work related to the area.
Halim(S)fksq.utm.mv Kajian dilakukan bagi membangunkan satu perisian komputer yang akan memaparka... more Halim(S)fksq.utm.mv Kajian dilakukan bagi membangunkan satu perisian komputer yang akan memaparkan hasil pelarasan ukur deformasi dalam bentuk grafik dan dapat diterima atau digunakan oleh beberapa perisian CAD. Perisian yang dibangunkan adalah GPDSv2 (Graphic Presentation for Deformation Survey version 2) yang menggunakan bahasa pengaturcaraan Fortran Power Station. Perisian ini dijana bagi menghasilkan fail dxf untuk paparan grafik hasil pelarasan kuasadua terkecil dan analisis deformasi bagi data 2D dan 3D serta dapat ditunjukkan pada paksi yang berlainan. Kertas ini akan membincangkan langkah-langkah penggunaan perisian ini dan paparan hasilnya dalam enviromen AutoCad.
International Journal of Sustainable Construction Engineering and Technology, Oct 30, 2023
3D modeling in civil engineering played a crucial role for engineers and clients. It provided a b... more 3D modeling in civil engineering played a crucial role for engineers and clients. It provided a built-in illustration of the project's scope, eliminating the need for sifting through drawings and patterns . The benefits of 3D modeling, such as cost savings and simpler design manipulations, were evident. Stress mapping highlighted design flaws, and unlimited model inspection ensured every defect was identified and corrected. The enhanced visualization allowed for simple verification of physical changes, functional changes, and aesthetics. Collaboration among design teams improved, and 3D modeling reduced the time and labor involved in developing newer esign versions . This study concentrated on constructing a 3D model of Tunku Tun Aminah Library at the University Tun Hussein Onn Malaysia. A DJI Phantom 4 Pro drone captured aerial photographs, and Agisoft Metashape software was used for the modeling. Ground Control Points (GCPs) were positioned, and their coordinates were measured for accuracy. Data collection employed a systematic approach, ensuring comprehensive coverage of the area. The generated 3D model was Abstract: 3-Dimensional (3D) modelling helped bring flat, 2D ideas to life. 3D models were valuable because they could include a much wider array of project information. The purpose of this study was to develop a 3D model by using Unmanned Aerial Vehicle (UAV) images of Tunku Tun Aminah (PTTA) Library building. To create a 3D model, Agisoft Metashape software combined photos from UAV images. Then, we assessed the accuracy of the 3D model of Tunku Tun Aminah's library building to the actual scale of the building from a vertical and horizontal view. The result of the 3D model that has been constructed demonstrates a high level of accuracy in capturing its intricate details and spatial characteristics. The vertical and horizontal views, both the Tunku Tun Aminah library and the parking lots had actual lengths that matched the estimated values precisely. The results indicated that there were slight differences in measurements, and all the measurements were 95% accurate and above. The precision demonstrated in capturing the dimensions of these structures indicates reliable data for analysis and decision-making purposes. The Ground Sampling Distance (GSD) for the assessment was 1.36 cm per pixel. At the end of this research, the 3D model of PTTA library was uploaded on SketchFab to allow various parties, including university authorities, contractors, local authorities, architects, and structural engineers to have a better understanding of the building's condition and its surroundings.
In-Situ Stabilization Analyses of Peaty Clay Soil Layers using Solid Waste from of Biomass Power Plant
International Journal of Design & Nature and Ecodynamics, Dec 25, 2023
International Journal of Integrated Engineering
Currently, close-range remote sensing method using drone-based platform which payload compact sen... more Currently, close-range remote sensing method using drone-based platform which payload compact sensor has been used for monitoring and mapping in the agriculture sector at large area. Thus, this study is deployed drone with a compact sensor to identify the rubber tree leaf diseases based on two groups of a spectral wavelength which are visible (RGB: 0.4 μm – 0.7 μm) and near infrared (NIR: 0.7μm – 2.0 μm), respectively. Spectral obtained from drone-based platform will be validated using ground observation handheld spectroradiometer. Eight types of rubber tree clones leaf at three different conditions (healthy, unhealthy and severe) were randomly selected within the 9.4-hectare experimental rubber plot, Rubber Research Institute of Malaysia (RRIM), Kota Tinggi, Johor whereby consist RRIM 2000 series, RRIM 3000 series, and PB series, respectively. Based on the result, quantitative analysis shows that the f-value is smaller than Critical-one tail for healthy, unhealthy while for severe ...
International Journal of Integrated Engineering
Floods are the most frequent type of natural disaster and occur when heavy precipitation for days... more Floods are the most frequent type of natural disaster and occur when heavy precipitation for days or even weeks. Floods will cause extensive destruction, resulting in loss of life and disruption to personal property and vital infrastructure for public health. In this study, HEC-RAS model was used to identify the flood prone area and to determine cross section at floodplain area along the stream network. The study was conducted in the area Muar, Johor. The methodology involved collection of parameters such as length of stream, lateral & elevation of coordinates, streamline and flow data to perform a hydraulic simulation. Different value of flowrate had been used by using the manning equation to estimate the drainage or channel capability to manage the flowrate. The number of station for each cross section need to locate in order to simulate the cross section along the river or channel. Meanwhile, the result outcome will show the cross section for each station. From the result, the an...
International Journal of Integrated Engineering
Indonesia has a strong earthquake risk. The effects of saturated silty sand liquefaction during e... more Indonesia has a strong earthquake risk. The effects of saturated silty sand liquefaction during earthquakes can be very damaging. Liquefaction is the threats to the safety of structures, and the evaluation of liquefaction potential is essential in locations with silty sand layers. Research was performed at BPJS Branch Office building project in CentralJakarta with 7 floors when conducted the substructure or deep foundation design. This research uses cone penetration test (CPT) data to evaluate the potential and probability of liquefaction. At the same time, this research also predicts the bearing capacity (Qu) of single pile embedded on silty sand layer at conditions of Non-Liquefaction (NL) and Liquefaction (L) due to an earthquake. The research results showed that silty sand layers were classified as the susceptible layers to the liquefaction potential after plotted of CPT data into the graphic from Robertson & Campanella method [1] and signed by zone A. However, bearing capacity ...
Application of Coastal Protection Structure for Mangrove Rehabilitation & Rejuvenation of West Coast Johor. Case Study: Tanjong Labuh, Batu Pahat, Johor
IOP Conference Series: Earth and Environmental Science
Tanjung Labuh beach was a muddy beach along the Malacca Strait and the shoreline was the land-sea... more Tanjung Labuh beach was a muddy beach along the Malacca Strait and the shoreline was the land-sea border. The shoreline has an irregular existence and shifts because of human activities and nature, resulting in erosion and sediment eradication on the shore. The aim of this study focuses on identify the coastline changes from the image taken by using drone and to analyse the data from the image by using ArcGIS mapping software and also to determine soil properties, coastal properties and analyse the movement of sediment transport. DJI Phantom 4 Pro (UAV) is a method used to identify the shoreline changes in study area. Measuring large-scale land recovered by land survey methods such as the complete station and GPS however demands a great deal of time and job investment. Analysis such as specific gravity, hydrometer test and sieve analysis will be carried out to obtain results on the characteristic of sediment for identified coastal erosion. The result shows during the low tide betwee...
Enhancing Civil Engineering Professional Skills through Survey Camp Course using Project-Based Learning
2017 7th World Engineering Education Forum (WEEF), 2017
This paper describes an effective approach of the learning environment via project based learning... more This paper describes an effective approach of the learning environment via project based learning in enhancing engineering professional skills through the Survey Camp Course among civil engineering students. Five elements of the professional skills have been identified for observation, namely, communication, problem solving, team working, leadership and modern tool usage. A mixed method research methodology was utilized to observe the effectiveness of the implementation of project based learning environment in conducting the course and to assess students' professional skills development upon its completion. As a quantitative study, a set of instruments was developed and statistically tested to measure outcomes. The results from the pair sample t-test analysis show that there are statistically significant differences in students' professional skills before and after the course. Furthermore, in the qualitative study, the feedback from the students' reflective journals prov...
Oil Palm Yield Prediction Using Low-Cost Unmanned Aerial Vehicle Platform
Advanced Science Letters, 2018
International Journal of Scientific & Technology Research, 2020
There are two types of Facility Location Problem (FLP) that have been presented. The first type o... more There are two types of Facility Location Problem (FLP) that have been presented. The first type of FLP is minisum rectilinear distance single FLP which have been solved by using median method and also linear programming formulation which solved by using linear programming software, TORA. The second type of FLP is minisum Euclidean distance single FLP which solved by using Weiszfeld’s method and also extension of Weiszfeld’s method. Given weighted demand points, the new facility location point was find to minimize the total demand weighted cost between the demand and the new facility location (minisum objective function). All of the methods have been applied successfully. The results obtained have been analyze and compared by the total distances.
International Journal of Sustainable Construction Engineering and Technology, 2020
Building inspection is very much required for all buildings especially those historical ones to m... more Building inspection is very much required for all buildings especially those historical ones to maintain the structure condition and the safety of the people around. Visual inspection is commonly conducted using manual descriptive information carried out by the inspector personally. The problem with this technique of assessment is that the time needed to write all the defect description on site and to access difficult area can be hazardous. The aim of performing historical building inspection on Tan Swee Hoe’s historical mansion is to evaluate the overall condition of the building with Unmanned Aerial Vehicle (UAV) image assisted inspection and Condition Survey Protocol 1 (CSP1) method. From this drone assisted inspection, it shows that the time spent on site is less than half an hour and the data collected being evaluated with CSP1 method defined that the building is dilapidated. The overall building condition is in red class and require serious attention to avoid any injuries to t...
International Journal of Integrated Engineering, 2018
Thermal properties of certain building materials were studied with respect to environmental aspec... more Thermal properties of certain building materials were studied with respect to environmental aspects. The building materials with significant insulation properties were laboratory tested using the special equipment based on Peltier module. During the experimental work, the samples of the following materials were tested: Expanded polystyrene (EPS), Autoclaved aerated concrete (AAC): Ytong, Calcium Silicate Board: Super-Isol and Foam glass (Cellular Glass Insulation): PERINSUL. The temperature was measured directly in connection of material with the Peltier module as well as in the distances of 5mm, 27.5mm, 50mm and 95mm from the Peltier module. The temperature taken at the surface of Peltier module reached -22°C, a typical temperature in the cold winter season. The results of the laboratory experimental work were modelled using the graphic representation. Modelling the thermal distribution will help to determine the ideal material thickness in the design of the building insulation.
International Journal of Integrated Engineering, 2018
MATEC Web of Conferences, 2017
The historical building is one of the country's heritage that needs to be taken care of failures ... more The historical building is one of the country's heritage that needs to be taken care of failures in design and structure. Damage or dilapidation study that conducted by Conservation of Historical Building Guide Lines that practices for documentation any problems and defects in buildings. The stages to be followed to determine the damage was shooting photos for every element studied. Photo has been taken directly or by using stair for higher parts of structures. Inspection of the historical building should be emphasized to ensure that the building is in a safe condition for long periods. This research aims is to investigate the historical building defects by using Unmanned Aerial Vehicle (UAV) to identify the type of defects occur at the exterior structure of museum. The case study is building of Perak Museum that located at Taiping, Perak. The process involved in this study are planning and preparation before the flight, data acquisition using UAV, image processing and analyzing data from video to image. The result of analysis, a total numbers of 91 locations have been identified and documented suffer from defects or faults such as frame decayed, vegetation, perforated pipe and crack. All defects information obtained suing UAV visual inspection can help the museum maintainance team for conservation and maintainace work.
Hazard And Risk Slope Inventory Using Geographical Information System (GIS): Case Study At Federal Route Simpang Pulai From Section 35 To 45
IOP Conference Series: Materials Science and Engineering, 2016
The demand for better and efficient road network has increased tremendously due to the rapid deve... more The demand for better and efficient road network has increased tremendously due to the rapid development experienced by the nation in the past few decades. Thus, the tendency to construct roads on the hilly terrain and forced the cuts and fills activities to be carried out. From Public Work Department (PWD) data, the second East West Highway (EWH) found 1335 numbers of non-failed and failed slopes along the highway that are need to be inspected. This case study was focused along the federal road of Simpang Pulai from section 35 to 45 which is part of the second EWH. Therefore, in order to manage the large number of the slopes, it is impossible to access the location and condition of slopes by conducting site inventory without any references. The Slope Smart Proforma A1 and Slope Management and Risk Tracking System (SMART) assessment was used to collect all the slopes data and analyzed the slope in order to verify the condition in terms of hazard and risk. The process of slope mapping was conducted using the Geographic Information System (GIS) application. As a result, the map of slope hazard and risk produced based on rating that has been designed by PWD in SMART. In conclusion, the map produced with data collected through proforma can be useful for the responsible parties to evaluate and inspect the condition of the slopes in order to take early preventive measures.
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Papers by Mustaffa Anjang Ahmad