Site layout for earthworks in road projects

Mawdesley, M.; Askew, William H.; Al-Jibouri, Saad H.S.

doi:10.1108/09699980410527885

Cited by 14 publications

(9 citation statements)

References 9 publications

(10 reference statements)

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“…Optimal site layout on earth moving projects has been attempted via integration of various models; as a mechanism to provide decision support for site managers and with resulting models based on both, "traditional mass haul diagrams" and artificial intelligence (Mawdesley et al, 2004). On a similar theme, Moselhi and Alshibani (2007) presented a model to plan, track and control earthwork operations that focussed on crew optimisation using a genetic algorithm and geographic information system; while Eldin and Mayfield (2005) applied a spreadsheet application to selecting the most economical scraper for large earth moving operations, given defined job conditions.…”

Section: Theme 3: Optimizationmentioning

confidence: 99%

Construction plant and equipment management research: thematic review

Edwards

Holt

2009

Journal of Engineering, Design and Technology

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PurposeA literature review is presented in the subject of construction plant and equipment management (CPeM) to: delineate the subject; consider its development over recent years; and identify principal themes within it. The paper aims to close the gap in knowledge, by using these objectives as a mechanism to observe how research themes relate to primary CPeM functions, and to suggest future research direction.Design/methodology/approachA thematic review of CPeM academic literature (in the main, refereed journal papers published in English‐speaking countries over the last decade) is undertaken; the nature of identified themes is discussed, for instance, regarding why they might have evolved as they have; and based on the foregone, themes for future research in the field are proffered.FindingsCPeM is found well established within the broader subject of construction management. Eight principal themes are identified, namely plant maintenance; downtime and productivity; optimisation; robotics and automation; health and safety; operators and competence; machine control; and “miscellaneous”.Research limitations/implicationsIt is proffered that based on informational/technological advancements coupled with growing environmental/financial pressures, future CPeM research will strive to facilitate even greater plant reliability and safer modes of working. It is suggested that “optimum production methods” and “minimal resource consumption” will become inherent theme goals.Originality/valueThis is the first time that CPeM research has been consolidated and reviewed for publication in this manner.

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Section: Theme 3: Optimizationmentioning

confidence: 99%

Construction plant and equipment management research: thematic review

Edwards

Holt

2009

Journal of Engineering, Design and Technology

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“…Mawdesleyet al [3] pointed out that CPM networks are more suitable for large complex projects, however, line of balance and linear scheduling methods are more practical for the repetitive and linear construction projects. A linear schedule is used to reduce the interruption of continuous or repetitive activities, to maintain resource continuity, and to determine locations of the activities on any given day from the schedule.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The earthworks activities also have direct effects in the sequencing of the rest of road activities since earthwork contributes higher percentage in a project monitoring value. Hence, decisions taken during the planning stage of the earthwork operations have high impact on the overall performance of the project [3].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Planning and scheduling involve careful allocation of resources, particularly along linear construction projects when and where necessary throughout the construction operations. Failure to decide on the optimum work activities with the required resources from location aspects have an adverse impact on the project cost, time, quality, space conflicts, and safety of site works in the construction projects [3].…”

Section: Introductionmentioning

confidence: 99%

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Earthwork Planning and Visualisation of Time-Location Information in Road Construction Projects

Shah

2016

J. Adv. Coll. Engin. Mgt.

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Accurate information of locations from visual aspect is vital for efficient resource planning and managing the workspace conflicts in the earthwork operations, which are missing in the existing linear schedules. Hence, the construction managers have to depend on the subjective decisions and intangible imaginingfor resources allocation, workspace conflicts and location-based progress monitoring in the earthwork projects. This has caused uncertainties in planning and scheduling of earthworks, and consequently delays and cost overruns of the projects. To overcome these issues, a framework of computer based prototype model was developed using the theory of location-based planning. This paper focuses on the case study experiments to demonstrate the functions of the model, which includes automatic generation of location-based earthwork schedules and visualisation of cut-fill locations on a weekly basis. The experiment results confirmed the model's capability in identifying precise weekly locations of cut-fill and also visualising the time-space conflicts at the earthwork projects. Hence, the paper concludes that the model is a useful decision supporting tool to improve site productivity and reduce production cost of earthworks in the construction projects like roads and railways. Keywords: Earthworks, cut-fill sections, location-based scheduling information, productivity, visualisation ____________________________________________________________________________________________________ IntroductionIn comparison with other production industries, the construction industry has distinctive features in terms of one-off projects, site production, and temporary organisation [1]. The planning and scheduling process of a construction project is a challenging task and the decisions taken in this stage have the foremost impact on the successful execution of a project from its early conceptual stage to the project completion and operational stage [2]. Planning and scheduling involve careful allocation of resources, particularly along linear construction projects when and where necessary throughout the construction operations. Failure to decide on the optimum work activities with the required resources from location aspects have an adverse impact on the project cost, time, quality, space conflicts, and safety of site works in the construction projects [3].Arditiet al. [4] suggested that earthworks projects require a separate planning task for each project due to the distinctive characteristics of earthworks. The effective application of planning and scheduling techniques: such as CPM and PERT are limited because the activities associated with linear construction projects like roads, railways and pipelines are fundamentally different from the general building and housing projects. Most of the activities in road projects are linear activities and needs linear scheduling method. A linear scheduling method has the potential to provide significant enhancement in terms of visual representation from the location aspects, and to pr...

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“…It includes construction of embankments, bridges and tunnels and removal of vegetation followed by the laying of pavement material. A variety of road building equipment like bulldozer, grader and trucks are employed in road construction [10]. After design, approval, planning, legal and environmental consideration have been addressed, alignment of the road is set out by surveyors.…”

Section: Risk Factors and Current Practicementioning

confidence: 99%

Abandoned Borrow Pits; Risk Factors and Reclamation Procedure

et al. 2017

MOJCE

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Abandoned borrow pits and the associated risks are on the increase following rising trend in road construction in many developing countries. Notable risk factors include: frequent sliding, loss of life and ecosystem services, groundwater contamination, and loss of arable land. Reclamation of borrow pits should go by earth-moving; moving spoil heap and adjoining land area to fill the pit. This is followed by compaction and in-situ and laboratory testing to achieve the original geotechnical ground condition. Operators, host community and the government agency must agree and enforce reclamation of borrow pits soon after use. Borrow pits should be properly sited, planned and designed by professionals, with provision of appropriate safety measures. Reclaiming a borrow pit should be as important as opening a borrow pit, towards sustainable engineering and environment.

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Site layout for earthworks in road projects

Cited by 14 publications

References 9 publications

Construction plant and equipment management research: thematic review

Construction plant and equipment management research: thematic review

Earthwork Planning and Visualisation of Time-Location Information in Road Construction Projects

Abandoned Borrow Pits; Risk Factors and Reclamation Procedure

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