Preface
Dear readers, welcome to read the introduction of this journal. Value, Function, Cost is an open access international academic journal. By providing a reliable platform for the exchange of knowledge among scholars, the journal aims to encourage discussion and research into value-enhancing creative activities and scientific management methods. This journal covers a wide range of topics from value analysis to functional realization to value enhancement, and welcomes research articles, case studies, review articles related to value engineering.
The scope of this journal includes but is not limited to:
l Studies on policies and advanced international experience in value engineering;
l Industrial production, engineering design and construction;
l Value engineering for national economic construction;
l Product research and development to enhance the value of products, systems, or services;
l Value application and engineering project cost management；
l Research on Enterprise Management, Value Management, Value Chain and Supply Chain；
l Value engineering for non-engineering social systems.
The theme of this issue is about industrial production, engineering design and construction, covering engineering fields such as airports, urban transportation system renovation, drainage systems, highways, railway tunnels, etc. The paper comprehensively considers various factors such as construction difficulty, safety, cost, and schedule. By using computer simulation, sensor technology, Internet of Things technology, big data analysis, and other technologies, a mechanical analysis model is established. The method of combining theoretical calculation and software simulation is used to effectively control construction quality, accelerate construction progress and improve efficiency, while avoiding environmental pollution.
Our editorial team is composed of several well-known experts who have rich academic experience and outstanding research results. They will conduct strict review and editing of each submission to ensure the academic quality and completeness of the content.
We warmly welcome submissions from scholars, researchers, and students. Whether you are a beginner in the academic field or an experienced expert, as long as your research results have innovation and academic value, we will warmly welcome you. We believe that through your submission, we can jointly promote the development and progress of the academic community.
Thank you to all readers for their attention and support. We will continue to work hard to bring you more valuable content and exciting academic discussions. Looking forward to your participation and contribution! Wishing you enlightenment and inspiration in reading this journal!
Journal Editorial Board
Open Access
Original research article
Article ID: 2579
by
LIU Au pu, CHEN Jian guo, TANG Ke wei, SHI Qian
2022
,
2(2);
86 Views
Abstract
Based on the theory of progress control and risk management, this paper systematically sorts out the progress risk of Beijing Daxing International Airport, discusses the general schedule and progress risk identification model and its approach, and constructs multi-level early warning and dynamic monitoring methods for progress risk. Meanwhile, the method for general schedule and progress risk management of large-scale airport projects is also studied. The practice of early warning and control of the general schedule and progress risk of Daxing Airport project has achieved good results, which provides support for the comprehensive progress control of Daxing Airport project, and guarantees the realization of the target completion time of general schedule.
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Open Access
Original research article
Article ID: 2580
by
LI De long, XU Hai wen, FU Qiang
2022
,
2(2);
34 Views
Abstract
From the analysis of different time stages of flight planning optimization, flight planning optimization can be divided into three aspects: static flight planning optimization, flight planning dynamic feedback optimization based on flight delay prediction, and flight planning dynamic adjustment based on airport collaborative decision -making (A-CDM). Then, it analyzes the static scheduling and optimization of flight plans from the preparation links of flight schedules, aircraft type assignments, and flight frequencies; then uses the optimization method of delay spread prediction and data mining prediction to analyze the correlation of flight plan dynamic feedback optimization based on flight delay prediction the study. Finally, according to the complexity analysis of flight plan optimization, the development trend and future research directions of flight plan optimization are given.
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Open Access
Original research article
Article ID: 2581
by
DU Liang
2022
,
2(2);
25 Views
Abstract
With the rapid development of China's urbanization process, the original transportation plan cannot fail to meet the needs of urban economic development, and the transformation and upgrading of the urban transportation system is imminent. Urban rail engineering has become the only way to solve traffic problems in major core cities. However, conflicts between subway shield tunnels and existing building foundations occur from time to time, especially when some important buildings and public facilities cannot be demolished, underpinning technology is required. This paper relies on the Shijiazhuang Metro Line 2# underpassing the urban overpass special-shaped slab beam construction and bridge project built in 1994, combined with the past pile foundation underpinning and current intelligent construction technology, in the multi-support prestressed concrete special-shaped slab beam substructure pile foundation Intelligent pre-supporting technology is adopted in the underpinning construction process, which solves the problem of synchronous control of multi-supporting special-shaped slab girder under complex environment, and ensures the safety of construction and bridge operation.
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Open Access
Original research article
Article ID: 2582
by
BI Wen ling, WANG Wen yan, WANG Rong, CUI Zi min
2022
,
2(2);
25 Views
Abstract
In recent years, urban development, population expansion, and water pollution have become more and more serious. The main cause of reclaimed water pollution in Wuhan is that the combined drainage system is still retained, which makes the overflow pollution of the drainage system and the problem of regional waterlogging particularly prominent. The use of a sewage deep tunnel system to replace the traditional confluence system can basically eliminate overflow pollution. At the same time, applying value engineering to the decision-making stage of sewage deep tunnels for scheme comparison and optimizationcan effectively reduce costs, increase revenue, and enhance use functions.
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Open Access
Original research article
Article ID: 2583
by
LI Ai hua
2022
,
2(2);
24 Views
Abstract
In the process of building construction, the optimization of the construction scheme has always played a great role in saving construction costs, reducing construction risks and speeding up the construction progress. This paper studies the optimization of the implementation plan of the deep foundation pit earthwork excavation stagein the actual case, and analyzes the results of the optimization of the plan, so that the optimized new plan can accelerate the construction period and save money while ensuring the project quality and construction safety. The construction cost has played a significant role.
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Open Access
Original research article
Article ID: 2584
by
HUANG Hao
2022
,
2(2);
22 Views
Abstract
With the continuous development of my country's economic construction, the structural safety of old houses has become increasingly prominent, which is related to people's life safety and social stability. Through the application of sensor technology, Internet of Things technology, and big data analysis, the safety management, monitoring and early warning of houses are realized. Based on an engineering example, this paper deeply explores the safety monitoring system of shear structure buildings and its construction application.
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Open Access
Original research article
Article ID: 2585
by
LI Hong wei
2022
,
2(2);
28 Views
Abstract
Many bridge piers were built in the Coastal Interconnection Project of the Ningbo Section of the Hangzhou-Ningbo Expressway Double Line. Affected by the tides at the bridge site, the high pile caps are constructed using a suspending cofferdam without a bottom cover. Based on the consideration of various factors such as construction difficulty, safety, cost and construction period, etc. A cement structure is generally adopted as the floor of the suspended box cofferdam. The steel-concrete combined hanging box cofferdam without bottom cover adopts the structure of steel wall plate and prefabricated cement floor, and the partition wall plates are connected by bolts. The steel-concrete composite suspending cofferdam adopts the prefabricated bottom plate and wall plate. The construction sequence is listed as follows: First, weld the load-bearing corbel on the steel casing, and then hoist the prefabricated bottom plate to the steel casing corbel in blocks. Pour the wet joint between the prefabricated bottom plate and install the side plate. After that, pour the cushion after welding the shear plate. Finally, carry out the construction of the cap. During the construction of the project, the connection method between the wall plate and the bottom plate was optimized. The connection of the fine-rolled rebar hanger rod was changed to the steel bar pair pulling, which improved the construction efficiency significantly.
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Open Access
Original research article
Article ID: 2586
by
WANG Kai jun
2022
,
2(2);
24 Views
Abstract
In Taos barrow of jade grinding rail tunnel engineering ii, of rich water karst region slipped in weak rock tunnel collapse mechanism and treatment technology for research, slipped through the establishment of the tunnel surrounding rock collapse mechanics analysis model, the theoretical calculation and finite element calculation software simulation method of combining the, constraints of the tunnel to slip down position at the beginning of surrounding rock and the structural stability analysis, According to the analysis results, the corresponding treatment measures are put forward. The results show that the settlement value of surrounding rock vault is 84.7mm, and the horizontal convergence value of arch waist is 167.4mm. The deformation value of surrounding rock is large, and it is easy to collapse. The plastic zone of surrounding rock mainly occurs at the junction of upper and lower steps on the face of the face, and the maximum plastic strain is 6.63×10 -2 . The arch waist of the primary support structure is prone to stress concentration, which should be reinforced during construction to prevent instability failure. According to the actual situation of tunnel construction site, combined with the finite element calculation results, the treatment structure of concrete filling combined with small pipe reinforcement was used to treat the tunnel slide collapse section. The treatment effect of tunnel slide collapse section was better, which provided a reference for the treatment of the same situation in the subsequent construction section.
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Open Access
Original research article
Article ID: 2587
by
WANG Xing, LI Ming jun
2022
,
2(2);
26 Views
Abstract
In recent years, with the rapid development of subway and underground comprehensive pipe corridor, the problem of close connection between underground structure and existing subway section structure is often encountered in engineering construction. During construction, the newly built underground structure will disturb the stratum, easily cause the additional displacement deformation and internal force change of the existing tunnel structure, and then lead to safety accidents. Therefore, it is particularly important to analyze the influence and safety evaluation of the new construction on the existing subway structure. This paper takes the construction of new underground power pipe gallery close to the existing subway section as an engineering case. The influence of adjacent construction on the existing structure is analyzed by three-dimensional finite element method, and then the safety of the existing structure is evaluated through deformation prediction, internal force analysis and bearing capacity checking calculation, and some construction safety protection suggestions are put forward. It has a certain reference for similar proximity projects.
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Open Access
Original research article
Article ID: 2588
by
DONG Guang
2022
,
2(2);
26 Views
Abstract
Based on the actual situation of the secondary lining of the Hongxing Tunnel in Dalian Bay, this article focuses on the mechanical properties of the secondary lining of the ultra -shallow buried tunnel underpassing the existing highway, mainly using the Taishaji theory and the Beijing mining method for the calculation of load and moment, shear force, axial force, etc. And the construction control measures of the second lining of the tunnel under the condition of super shallow buried and concealed excavation were put forward. Studies have shown that the mechanical analysis and calculation of the secondary lining used in this project are in line with reality, and the selection of the construction technology of the secondary lining is reasonable, and it is worthy of popularization and use in similar projects.
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Open Access
Original research article
Article ID: 2589
by
NING Feng yuan
2022
,
2(2);
22 Views
Abstract
The full-rotation complete tube technology is to drive the flower tube and the steel casing to be fastened by connecting pins, drive the steel casing to rotate 360 degrees, and apply torque and vertical load to the steel casing in the hole, with the help of the steel casing pipe to cut and drill the boulder and medium-coarse sandstone layer with strong force, make full use of the role of the steel casing to protect the wall, and then use the auger and sand drill to grab the confined water and the soil in the steel casing, and then clear thelobstacles inside of the steel casing. Controlling the slump of concrete and the amount of concrete poured each time can more effectively control the construction quality, which has obvious effects on speeding up the construction progress and improving efficiency, and at the same time avoiding environmental pollution.
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ISSN
2810-918X (Online)
Indexing & Archiving
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