ỨNG DỤNG NGUYÊN TẮC XÂY DỰNG TINH GỌN VÀ MÔ PHỎNG ĐỂ CẢI THIỆN HIỆU SUẤT HOẠT ĐỘNG THI CÔNG ĐẤT TRONG DỰ ÁN XÂY DỰNG TRÊN ĐẢO XA BỜ=APPLICATION OF LEAN CONSTRUCTION PRINCIPLES AND SIMULATION FOR PERFORMANCE IMPROVEMENT OF EARTHWORK ACTIVITIES IN CONSTRUCTION PROJECTS ON OFFSHORE ISLANDS

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Tác giả: Quang Nam Nguyễn, Trọng Quang Vũ

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Journal of Science and Technique: Section on Special Construction Engineering, 2024

Mô tả vật lý: tr.49

Bộ sưu tập: Metadata

ID: 251769

Thêm vào giỏ

Mục tiêu chính của nghiên cứu này là áp dụng nguyên tắc xây dựng tinh gọn kết hợp với mô phỏng sự kiện rời rạc cụ thể là EZStrobe, để cải thiện hiệu suất của các hoạt động đào đắp trong một dự án xây dựng trên đảo xa bờ. Dựa trên việc quan sát quá trình thi công thực tế và thu thập dữ liệu của từng hoạt động, một mô hình mô phỏng hoạt động đào và vận chuyển cát san hô được thiết lập và xác thực. Kết quả phân tích từ mô hình thực tế đã chỉ ra các vấn đề về thiếu hụt tài nguyên cũng như sự tắc nghẽn trong quá trình thi công, gây ra tình trạng chậm tiến độ và năng suất kém. Từ đó, ba nguyên tắc xây dựng tinh gọn đã được áp dụng vào mô hình mô phỏng để cải tiến quá trình thi công. Kết quả phân tích từ mô hình tinh gọn được so sánh với mô hình thực tế cho thấy, thời gian chờ của các thiết bị xây dựng giảm 70,2%, thời gian chu kỳ và tổng thời gian xây dựng giảm lần lượt 34,2% và 33,9%. Kết quả này dẫn đến năng suất được cải thiện đáng kể với mức tăng 51,3% và tiết kiệm 16,8% chi phí. Các nguyên tắc xây dựng tinh gọn khi kết hợp với công cụ mô phỏng đã chứng minh được tính hiệu quả trong việc loại bỏ các lãng phí và cải thiện quy trình thi công. Nó giúp các nhà quản lý có thể quản lý hiệu quả các kế hoạch của mình và đưa ra quyết định sáng suốt để nâng cao năng suất xây dựng.The main objective of this study is to apply Lean Construction (LC) principles combined with a discrete event simulation tool, namely EZStrobe, to improve the performance of earthworks in construction projects on offshore islands. Based on the observation of the real-world construction process and the collection of data on each activity, a simulation model of the digging and hauling operations of coral sand is established and validated. The analysis results of the real model indicate problems of resource shortage as well as congestion in the construction process that caused delays and poor productivity. Subsequently, the three LC principles are applied to the simulation model to enhance the construction process. The analysis results from the Lean model, when are compared with the real model, show that the waiting time of construction equipment is reduced by 70.2%, the cycle and total construction time are reduced by 34.2% and 33.9%, respectively. As a result, productivity is significantly enhanced with an increase of 51.3% and a savings of 16.8% in cost. LC principles, when combined with the simulation tool, have demonstrated their effectiveness in reducing waste and improving construction processes. This approach helps managers effectively manage their plans and make informed decisions to enhance construction productivity.

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