• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1088-1093
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• 2009

To improve construction productivity and quality, and to make the construction environment safe, a new system, Robot-based Construction Automation (RCA), is currently being developed in Korea. To determine whether RCA is an improvement over traditional construction methods (TCMs), an evaluation method, called the Performance Evaluation Index (PEI), is suggested for RCA. The PEI considers the relationships among the factors influencing the performance of the system obtained using the Delphi method and the analytic hierarchy process (AHP). As the evaluation shows, RCA is much better than TCM except for three factors: the rate of work success, quality improvement by learning experience, and construction duration.

• Geomechanics and Engineering
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• 제30권3호
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• pp.313-324
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• 2022

With the development of the economy, people's utilization of underground space are also improved, and a large number of cities have begun to build subways to relieve traffic pressure. The choice of subway station construction method is crucial. If an inappropriate construction method is selected, it will not only waste costs but also cause excessive deformation that may also threaten construction safety. In this paper, a subway station construction scheme selects model based on the AHP-fuzzy comprehensive evaluation. The rationality of the model is verified using numerical simulation and monitoring measurement data. Firstly, considering the economy and safety, a comprehensive evaluation system is established by selecting several indicators. Then, the analytic hierarchy process is used to determine the weight of the evaluation index, and the dimensionless membership in the fuzzy comprehensive evaluation method is used to evaluate the advantages and disadvantages of the construction method. Finally, the method is applied to Liaoyang east road station of Qingdao metro Line 2, and the results are verified by numerical simulation and monitoring measurement data. The results show that the model is scientific, practical and applicable.

• 경영과학
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• 제17권2호
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• pp.135-150
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• 2000

Korean construction companies are recently facing stiff competition in free market economy, and construction projects tend to be complex and large-scale. Such an environment demands that construction companies ensure specialized subcontractors. This paper suggested a subcontractor evaluation model for selection of competent subcontractors which are equipped with operational, technical and productive ability. For designing a subcontractor model, AHP method as a group decision-marking method is applied in assigning weighting indices of evaluation elements. To verify this method, actual data collected in one of construction companies are analysed statistically.

• Geomechanics and Engineering
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• 제19권3호
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• pp.283-293
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• 2019

Evaluating the stability of the excavation face of the cross-river shield tunnel with good accuracy is considered as a nonlinear and multivariable complex issue. Understanding the stability evaluation method of the shield tunnel excavation face is vital to operate and control the shield machine during shield tunneling. Considering the instability mechanism of the excavation face of the cross-river shield and the characteristics of this engineering, seven evaluation indexes of the stability of the excavation face were selected, i.e., the over-span ratio, buried depth of the tunnel, groundwater condition, soil permeability, internal friction angle, soil cohesion and advancing speed. The weight of each evaluation index was obtained by using the analytic hierarchy process and the entropy weight method. The evaluation model of the cross-river shield construction excavation face stability is established based on the idea point method. The feasibility of the evaluation model was verified by the engineering application in a cross-river shield tunnel project in China. Results obtained via the evaluation model are in good agreement with the actual construction situation. The proposed evaluation method is demonstrated as a promising and innovative method for the stability evaluation and safety construction of the cross-river shield tunnel engineerings.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2001년도 학술대회지
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• pp.261-266
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• 2001

개발의 시각이 보존으로 바뀌면서 리모델링의 개념이 도래하였다. 경험이 부족한 국내 리모델링사업에서 경제성 검토단계는 사업주체에게 있어서 정확한 분석이 필요한 분야라 할 수 있다. 이에 본 연구는 리모델링 사업수행 시 경제성검토 단계에서 리모델링 전과 후의 가치를 비교할 수 있는 방법들을 다양한 시각으로 고찰하여 건물의 실제가치를 평가할 수 있는 방안제시를 목적으로 수행하였다. 이를 위해 기존의 건축분야와 부동산분야의 경제성 평가기법들을 조사하고 그 문제점 및 장·단점을 분석하였다. 이를 바탕으로 건축분야에서 사용되고 있는 기존의 경제성 평가기법에 부동산분야의 감정평가기법을 응용한 혼합형 평가 기법을 구축하여 그 절차와 방법을 제시하고, 실제 사례에 적용하여 타당성을 검토하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2008년도 추계 학술논문 발표대회
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• pp.205-211
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• 2008

Recently, selects method of waterproofing where is suitable with method and material physical properties, construction technique, Productive technique and specifications and maintenance techniques evaluation for the same evaluation method is coming to be presented. Respects the application which select system is substantial objectively reflects a weight to evaluation item the research for is necessary. This research the evaluation which in order is effective and the decision-making to be possible about technically countermeasures for a quality security from waterproofing materials, method selection processes, clearly responsible dividing of construction and maintenance techniques. A sets weight of evaluation item for right select system, it stratify the causes which affect in priority based on AHP.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.128-129
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• 2018

With the increase of tall building construction, efforts for enhancing constructability are required from the pre-construction stage. Therefore, in this study, we proposed an evaluation method of constructability performance by performing construction engineering activities at the design phase. Based on some results of previous studies, we estimated the importance of design factors and categories influencing the constructability in each engineering activity related to temporary work and then presented a method for evaluating the constructability performance of design alternatives.

• 한국콘텐츠학회논문지
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• 제16권8호
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• pp.661-670
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• 2016

건설공사 사후평가는 공공건설사업을 대상으로 수요 공사비 공사기간 기대효과 및 사업관리 내용 등을 준공 이후에 재평가하고, 차후 유사사업 추진 시 그 평가결과를 참고하여 발주청의 시행착오를 줄이기 위한 목적으로 2000년부터 도입되었다. 하지만 용역대가 산정기준이 마련되지 않아 사후평가 용역의 질적 저하 및 분쟁발생의 원인이 되고 있다. 본 연구에서는 사후평가 용역데이터를 기반으로 공사비요율방식 및 실비정액가산방식의 용역대가 산정기준을 제시하였다. 용역대가 분석을 위해 기존의 사후평가 용역비와 공사비를 조사하고 공사비요율방식 및 실비정액가산방식을 통해 산출된 용역비를 비교분석하였다. 분석결과 실비정액가산방식을 통해 산출한 용역비가 공사비요율방식에 비해 더 정확함을 확인하였다. 실비 정액가산방식은 시설물별 사업특성을 반영할 수 있도록 거리보정계수, 면적보정계수, 통합보정계수 등 다양한 보정계수가 적용되었으며, 선형공사(도로, 철도), 비선형공사 I(주택 산업단지), 비선형공사 II(공항, 항만, 댐, 상하수도), 기타공사로 시설물 구분을 세분화하여 산정기준을 제시하였다.

• 한국건설관리학회논문집
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• 제16권3호
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• pp.3-10
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• 2015

건설 프로젝트의 VE는 크게 설계단계 VE와 시공단계 VE로 분류된다. 설계단계 VE는 정부의 법률에 의해 100억 원 이상의 공공 건설공사에 적용해야만 한다. 따라서 설계VE는 건설 프로젝트에 적극적으로 적용되고 있다. 이와는 대조적으로, 시공 VE는 제한된 특정 건설 프로젝트에 적용되고 있다. 그 이유는 시공 VE 프로세스가 실무적 요구 품질을 반영 할 수 없기 때문이다. 시공 VE는 시공 가능성에 대한 타당성 검증을 통해 긍정적인 효과를 구현할 수 있다. 이에 본 연구에서는 실무를 반영한 시공 VE의 방법을 제안하고자 한다. 제안 방법은 직관지수(G.F.I.)를 활용한 전문가 기반의 대안평가 방법이며, 제안 방법의 적용성을 검증하기 위해 실무사례에 적용하였다. 그 결과 제안된 대안평가 방법은 기존의 방법보다 적용 절차, 적용 방법 측면에서 효율성이 높은 것으로 나타났다.

• 대한안전경영과학회지
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• 제7권1호
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• pp.11-23
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• 2005

It is difficult to put it into practice in that it requires bearing too much burden to draw out the planning itself in a case of large construction work. Consequently in this paper we select evaluation criteria by construction progress, classify into several categories, and regard potential danger which often occurs, as a evaluation criterion. Further step is to allow workers or collaborated companies to express their expert opinions or experiences and to encourage quality and process control and autonomous safety control by applying PSM(Process Safety Management) method using AHP(Analytic Hierarchy Process) and to development of PSIM(Process Safety Information Management) evaluation method in the construction. The reason why PSIM method should be quantitative and substantial progress is because it contributes Korean constructing companies to enhancing their safety control ability and to taking an equal stance just like developed countries, thereby strengthening their competitive edges.