Teaching Implementation of Practical Education and Innovative Construction Method

This study uses cases of practical education to illustrate the process and results of innovative construction methods. The results are as follows: 1. Originating from the nature of materials, development of construction methods through understanding the characteristics of materials can better demonstrate the importance of detailed design. 2. Through the addition of other materials, wood structures can stand out from the conventional form to show an amazing style. 3. Through practices, students can understand the importance of detailed design. Starting from the essence of the material and returning to the overall design through detailed design can indeed create unexpected results. 4. Feedback on teaching to provide reference for subsequent courses.

Download Full-text

Tailings facility disclosures reveal stability risks

Scientific Reports ◽

10.1038/s41598-021-84897-0 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Daniel M. Franks ◽

Martin Stringer ◽

Luis A. Torres-Cruz ◽

Elaine Baker ◽

Rick Valenta ◽

...

Keyword(s):

Information Disclosure ◽

Significant Risk ◽

Construction Method ◽

Facility Management ◽

Alternative Technologies ◽

Construction Methods ◽

Comprehensive Survey ◽

Engineering Standards ◽

The Right ◽

Stability Issues

AbstractTailings facility failures represent a significant risk to the environment and communities globally, but until now little data was available on the global distribution of risks and characteristics of facilities to ensure proper governance. We conducted a survey and compiled a database with information on tailings facilities disclosed by extractive companies at the request of institutional investors. Despite limitations in the data, this information disclosure request represents the most comprehensive survey of tailings facilities ever undertaken. The compiled dataset includes 1743 tailings facilities and provides insights into a range of topics including construction method, stability, consequence of failure, stored volume, and the rate of uptake of alternative technologies to dewater tailings and reduce geotechnical risk. Our analysis reveals that 10 per cent of tailings facilities reported notable stability concerns or failure to be confirmed or certified as stable at some point in their history, with distinct trends according to construction method, governance, age, height, volume and seismic hazard. Controversy has surrounded the safety of tailings facilities, most notably upstream facilities, for many years but in the absence of definitive empirical data differentiating the risks of different facility types, upstream facilities have continued to be used widely by the industry and a consensus has emerged that upstream facilities can theoretically be built safely under the right circumstances. Our findings reveal that in practice active upstream facilities report a higher incidence of stability issues (18.3%) than other facility types, and that this elevated risk persists even when these facilities are built in high governance settings. In-pit/natural landform and dry-stack facilities report lower incidence of stability issues, though the rate of stability issues is significant by engineering standards (> 2 per cent) across all construction methods, highlighting the universal importance of careful facility management and governance. The insights reported here can assist the global governance of tailings facility stability risks.

Download Full-text

Bridge bearing solutions that facilitate quick and efficient bearing installation and bridge construction

IABSE Congress, New York, New York 2019: The Evolving Metropolis ◽

10.2749/newyork.2019.1922 ◽

2019 ◽

Author(s):

Simon Hoffmann ◽

Amit Kutumbale ◽

Danilo Della Ca'

Keyword(s):

Load Distribution ◽

Construction Method ◽

Construction Process ◽

Vital Function ◽

Bridge Construction ◽

Construction Methods ◽

Efficient Construction ◽

Critical Components ◽

Bridge Bearing ◽

Segmental Bridge

A bridge’s bearings, arguably its most critical components, perform a vital function throughout the bridge’s service life, but the bearings used can also have a significant impact on the bridge construction process. Suitably designed adjustable bearings are an integral part of the incremental launch method of bridge construction, for instance, which can be a very efficient construction method. Adjustable bearings may also support other bridge construction methods, such as segmental bridge construction, where fixities/freedoms that applied during the construction phase require to be changed before the bridge enters service. Lifting bearings, the height of which can be increased, may enable a lack of precision in the structure to be tolerated, and measuring bearings may enable load distribution during bridge construction to be verified, where this is required by the construction method. Design features of otherwise standard bearings that support quick and high-quality installation can also contribute towards the efficiency of the overall bridge construction process, as can the use of bearing designs which minimize bearing size. Bearing solutions and features that facilitate bearing installation and bridge construction in ways such as these are described.

Download Full-text

Discussion on construction methods and precautions of building water supply and drainage

Smart Construction Research ◽

10.18063/scr.v2i2.429 ◽

2018 ◽

Vol 2 (2) ◽

Author(s):

Guoliang Yu ◽

Fan Fan Yang ◽

Li Li Li ◽

Zhenfeng Zhenfeng Li ◽

Zhenlong Shi

Keyword(s):

Water Supply ◽

Construction Project ◽

Construction Method ◽

Construction Quality ◽

Strong Function ◽

Construction Enterprises ◽

Construction Methods ◽

Quality Of Water

As an important construction link in the construction project, the quality of the water supply and drainage directly affects the overall quality of the construction project. Because of the strong function of the water supply and drainage project, the construction quality is easily affected by the construction method. For this reason, construction enterprises should attach importance to the mastery of water supply and drainage construction methods. And further understand the relevant precautions of construction water supply and drainage construction, in order to achieve the purpose of improving the quality of water supply and drainage construction.

Download Full-text

B2P Rutaka Footbridge – Improving Safety using Innovative Deck Pull Method

IABSE Conference, Kuala Lumpur 2018: Engineering the Developing World ◽

10.2749/kualalumpur.2018.0242 ◽

2018 ◽

Author(s):

Ian Towler ◽

Ben Mills ◽

Matthew Lofts ◽

Brandon Mills ◽

William Benson

Keyword(s):

Quality Control ◽

Rural Communities ◽

Developing Nations ◽

Construction Method ◽

River Bank ◽

Construction Methods ◽

Health Clinics ◽

Significant Step ◽

Safe Access

In developing nations, rural communities often lack year-round safe access to local markets, farms, schools, health clinics and other critical services. Bridges to Prosperity has developed standard footbridge designs and construction methodologies to successfully construct over 200 footbridges.This paper presents a case study of the 40m long suspended footbridge constructed in the community of Rutaka in Rwanda in 2017. The normal deck construction method required the operatives to spend a significant amount of time working at height. The industry team set themselves a challenge to reduce this.The team successfully developed and trialled a methodology for launching the deck from a platform on the river bank, improving safety and quality control. It is a significant step forward in the development of safety and construction methods for Bridges to Prosperity.

Download Full-text

Next Generation CANDU: Conceptual Design for a Short Construction Schedule

10th International Conference on Nuclear Engineering, Volume 2 ◽

10.1115/icone10-22718 ◽

2002 ◽

Author(s):

Jerry M. Hopwood ◽

Ian J. W. Love ◽

Medhat Elgohary ◽

Neville Fairclough

Keyword(s):

Conceptual Design ◽

Critical Path ◽

Construction Method ◽

Phase Iii ◽

Next Generation ◽

Project Schedule ◽

Construction Methods ◽

New Construction ◽

Construction Strategy ◽

Construction Schedule

Atomic Energy of Canada Ltd. (AECL) has very successful experience in implementing new construction methods at the Qinshan (Phase III) twin unit CANDU 6 plant in China. This paper examines the construction method that must be implemented during the conceptual design phase of a project if short construction schedules are to be met. A project schedule of 48 months has been developed for the nth unit of NG (Next Generation) CANDU with a 42 month construction period from 1st Concrete to In-Service. An overall construction strategy has been developed involving paralleling project activities that are normally conducted in series. Many parts of the plant will be fabricated as modules and be installed using heavy lift cranes. The Reactor Building (RB), being on the critical path, has been the focus of considerable assessment, looking at alternative ways of applying the construction strategy to this building. A construction method has been chosen which will result in excess of 80% of internal work being completed as modules or as very streamlined traditional construction. This method is being further evaluated as the detailed layout proceeds. Other areas of the plant have been integrated into the schedule and new construction methods are being applied to these so that further modularization and even greater paralleling of activities will be achieved. It is concluded that the optimized construction method is a requirement, which must be implemented through all phases of design to make a 42 month construction schedule a reality. If the construction methods are appropriately chosen, the schedule reductions achieved will make nuclear more competitive.

Download Full-text

Numerical analysis and application of the construction method for the small interval tunnel in the turn line of metro

Science Progress ◽

10.1177/0036850420932067 ◽

2020 ◽

Vol 103 (3) ◽

pp. 003685042093206 ◽

Cited By ~ 2

Author(s):

Zhanping Song ◽

Xiaoxu Tian ◽

Qi Liu ◽

Yuwei Zhang ◽

Heng Li ◽

...

Keyword(s):

Numerical Simulation ◽

Numerical Analysis ◽

Construction Method ◽

Surface Settlement ◽

Underground Excavation ◽

Small Interval ◽

Resource Configuration ◽

Construction Methods ◽

Initial Support ◽

Left And Right

The surrounding rock may become unstable or even fall down and the initial support may crack and be destroyed when the construction method of the underground excavation tunnel is not properly selected in the turn line of metro. . A section of the Santunbei turn line of Urumqi Metro Line 1# was taken as the engineering background. The proposed construction method was analyzed by numerical simulation. Numerical analysis shows that the final surface settlement caused by the proposed construction method is 3.0 mm and the horizontal convergence is 3.2 mm. It also turns out that the proposed construction method causes less deformation, and the method can be applied to the construction of the small interval tunnel in the Santunbei turn line of metro. The rationality of the method and numerical model was further verified by comparison between the monitored data of surface settlement, horizontal convergence and vault sinking, and numerical simulation results. Finally, the deformation and stress of the six construction methods were compared. The deformation and stress caused by the six construction methods are almost the same. It indicates that the construction spacing between the left and right tunnels does not affect the safety of tunnel construction. Therefore, the appropriate construction spacing could be selected according to the resource configuration, instead of deformation and stress.

Download Full-text

Construction Method and Numerical Analysis on the Bearing Capacity of the Large Diameter and Abyssal Pile Located in Complex Karst Area

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.639-640.688 ◽

2013 ◽

Vol 639-640 ◽

pp. 688-693

Author(s):

Jin Yi ◽

Guo Jing He ◽

Si Si Liu ◽

Zhi Yong Li ◽

Zu En Zheng

Keyword(s):

Bearing Capacity ◽

Load Transfer ◽

Large Diameter ◽

Construction Method ◽

Karst Area ◽

Karst Region ◽

Pile Capacity ◽

Construction Methods ◽

Geological Conditions ◽

Transfer Method

This paper introduced construction method for deep pile of Zishui bridge through karst region and the checking results of the pile bearing capacity. Firstly, main structure of Zishui bridge was simply introduced. Secondly, according to the special geological conditions, construction methods for bored piles in water and drilling platform were described. The discussion focused on the problem of boring and grouting in karst foundation and their solutions. Finally, to ensure that the pile capacity can meet the design requirements, load transfer method was used on the part of pile foundation to calculate the bearing capacity. Results showed that pile bearing capacity meet the requirements, and the feasibility and correctness of construction method of Zishui bridge was also verified,which provides references for the design and construction of the same civil engineering.

Download Full-text

Discussion on construction methods and precautions of building water supply and drainage

Smart Construction Research ◽

10.18063/scr.v0.429 ◽

2018 ◽

Author(s):

Guoliang Yu ◽

Fan Fan Yang ◽

Li Li Li ◽

Zhenfeng Zhenfeng Li ◽

Zhenlong Shi

Keyword(s):

Water Supply ◽

Construction Project ◽

Construction Method ◽

Construction Quality ◽

Strong Function ◽

Construction Enterprises ◽

Construction Methods ◽

Quality Of Water

Download Full-text

The Study of Prefabricated Construction Methods for Mass Tread Housing Construction. Case Study: Dian Sukolilo Regency Housing, Surabaya

Dimensi Utama Teknik Sipil ◽

10.9744/duts.6.2.49-63 ◽

2019 ◽

Vol 6 (2) ◽

pp. 49-63

Author(s):

Stefanie Susanto

Keyword(s):

Real Data ◽

Construction Method ◽

Housing Construction ◽

Construction Methods ◽

Simulation Calculation ◽

The Cost ◽

Cost Of Construction

This paper discusses the prefabricated construction method by taking a case study of Dian Sukolilo Regency housing construction, Surabaya. Prefabricated construction methods are able to provide faster construction times and better quality. Stages of research will be carried out by processing real data with a simulation calculation approach to obtain the calculation of the budget plan and estimated time of construction using the prefabrication method. The main variables that influence this prefabricated construction method are four namely cost, time, quality and number of units. The increasing number of units will reduce the cost of construction of the construction unit using the prefabrication method. The results of each research calculation will guide the interview to find out the response of the housing developer to the prefabricated construction method whose results will be the conclusion of the study.

Download Full-text

A Novel Sparse Attack Vector Construction Method for False Data Injection in Smart Grids

Energies ◽

10.3390/en13112940 ◽

2020 ◽

Vol 13 (11) ◽

pp. 2940 ◽

Cited By ~ 1

Author(s):

Meng Xia ◽

Dajun Du ◽

Minrui Fei ◽

Xue Li ◽

Taicheng Yang

Keyword(s):

Smart Grids ◽

Construction Method ◽

Feasible Region ◽

Data Detection ◽

Transformation Theory ◽

Singular Value Decomposition Method ◽

False Data Injection ◽

Construction Methods ◽

Vector Construction ◽

Value Decomposition

To improve the security of smart grids (SGs) by finding the system vulnerability, this paper investigates the sparse attack vectors’ construction method for malicious false data injection attack (FDIA). The drawbacks of the existing attack vector construction methods include avoiding discussing the feasible region and validity of the attack vector. For the above drawbacks, this paper has three main contributions: (1) To construct the appropriate attack evading bad data detection (BDD), the feasible region of the attack vector is proved by projection transformation theory. The acquisition of the feasible region can help the defender to formulate the defense strategy; (2) an effective attack is proposed and the constraint of effectiveness is obtained using norm theory; (3) the domain of the state variations caused by the attack vector in the feasible region is calculated, while the singular value decomposition method is adopted. Finally, an attack vector is constructed based on l 0 -norm using OMP algorithms in the feasible domain. Simulation results confirm the feasibility and effectiveness of the proposed technique.

Download Full-text