New Developments and Applications in Rail Transit Construction Technology

2014 ◽  
Vol 580-583 ◽  
pp. 1065-1071
Author(s):  
Run Jun Li ◽  
Ren Liang Shan ◽  
Qiu Lin Liao ◽  
Fu Mei Wu
Keyword(s):  
Electric Vehicles ◽  
Rail Transit ◽  
Construction Technology ◽  
Construction Site ◽  
Mining Method ◽  
New Developments ◽  
Construction Methods ◽  
Practical Engineering ◽  
Shield Machine ◽  
Method Construction

Combining with the practical engineering case, the paper summarizes the shallow mining method construction mechanism, construction methods and auxiliary technology. Aiming at the problems in the shield construction, the paper introduces the shield machine equipment’s latest comprehensive construction and technology, especially the shield technology dealing with the conglomerate stratum where the water and boulders is rich. It fills the domestic blank; Deep grouting and pipe roof reinforcement technology are aimed at the specific sources of risk; Whole cross-section of pallet trucks, electric vehicles, automatic metering and other new equipment have been widely applied to the construction site.

Planning a Sustainable, Green Industrial Road with an Ecological Recycling Economy in Mind

2017 ◽  
Vol 42 (3) ◽  
pp. 45-49
Author(s):  
Weiqi Pei
Keyword(s):  
Rural Economy ◽  
Construction Technology ◽  
Engineering Research ◽  
Rational Development ◽  
Ecological Protection ◽  
Recycling Economy ◽  
Practical Engineering ◽  
Planning And Construction ◽  
Ecological Construction ◽  
Rural Construction

With the development of the new rural construction action of beautiful industries, the problem of uncoordinated development of the rural economy and ecological protection has become increasingly prominent. Based on this, in the process of planning, design, construction and management, ecological construction technology was introduced. The planning and design of ecological recycling economy and rural greenway were studied, and the planning types of greenway in industrial villages were deeply explored. Taking the planning and construction of industrial rural greenway in Anji county as an example, the research and analysis were carried out. From the rural road, landscape space, ecology, service facilities, logo and so on, the planning was carried ou, and the greenway network of industrial villages in Anji county was constructed. Combined with practical engineering research, the scientific and rational development of rural greenway in the urban and rural construction throughout the countryn was promoted, the contradiction between urban and rural construction and ecological protection was effectively solved, and the construction of beautiful countryside was promoted.

Earth Building Materials, Production, and Construction Techniques

2013 ◽  
pp. 517-536
Author(s):  
Hamed Niroumand ◽  
M.F.M Zain ◽  
Sanaz Naghavi Alhosseni
Keyword(s):  
Sustainable Development ◽  
Built Environment ◽  
Building Materials ◽  
Construction Technology ◽  
Construction Methods ◽  
Construction Techniques ◽  
National University

Building materials and construction technology are strongly interrelated with the pillars for sustainable development (e.g. environment, society economy, culture and politics). Earth Building, an 11,000-year-old practice of building using sustainable and earth materials, is practiced worldwide. Earth has been used to construct walls, floors, roofs, and even furniture. Today it is estimated that between 33-50%of the world's population is housed in earth homes. This chapter reviews the two-year process of earth buildings and earth architecture carried out by the Department of Architecture Faculty of Built Environment and Engineering at National University of Malaysia (UKM). The current research emphasis is on the types, construction methods, and architectural aspects of earth buildings and earth architecture. The current manuscript compares type of earth buildings and their properties and applications based on building materials and architectural aspects in construction.

scholarly journals Optimal Design and Practice of the Construction Scheme for Laying the Whole Track Bed on the Subway Ballastless Track

2020 ◽  
Vol 165 ◽  
pp. 04003
Author(s):  
Chen Hui ◽  
Qi zhenfang
Keyword(s):  
Construction Industry ◽  
Modern Society ◽  
Rail Transit ◽  
Construction Technology ◽  
Ballastless Track ◽  
Construction Scheme ◽  
New Construction ◽  
Design And Practice ◽  
Stable Development ◽  
Modern Building

In the development of modern society, our country attaches more importance to the development of the construction industry, and strengthens the supervision, so that the construction industry can be developed to the mode of industrialization. That combining with the construction needs of prefabricated concrete assembly in our country and taking comprehensive analysis of various factors and application, can enhance the structural stability and safety of prefabricated concrete assembly, thus can meet the needs of the modern building industrialization development, and improve the overall quality and efficiency. In the development of subway transportation field, laying the whole track bed of Ballastless track is an important core work, which is the new construction of rail transit. This paper made perfect management system, carried out all kinds of work, improved the construction technology of the whole track bed and perfected the construction plan, with the result of prolonging the service life of the subway ballastless track and promoting the stable development of modern society in our country.

scholarly journals Construction Technology of Composite Cofferdam for Main Pier Bearing Platform of Dongjiang Lichuan Bridge

2020 ◽  
Vol 165 ◽  
pp. 04047
Author(s):  
Jianping Wang
Keyword(s):  
Steel Sheet ◽  
Economic Benefits ◽  
Construction Technology ◽  
High Quality ◽  
Rock Stratum ◽  
Advantages And Disadvantages ◽  
Construction Methods ◽  
Bored Pile ◽  
Geological Conditions ◽  
Pile Cap

Dongjiang Lichuan Bridge in Dongguan City is a curved tower curved beam cable-stayed bridge with a main span of 138m and no back cable. The main pier cap is located on the bank slope of Dongguan Waterway on one side of Nandi Road. The cushion cap is dumbbell type, and the left and right cushion caps are connected by tie beams. In most areas, the top of rock stratum is above the bottom of bearing platform. The rock stratum within the buried depth of bearing platform is moderately to strongly weathered argillaceous siltstone. The geological conditions are complex and the construction is difficult. In line with the principles of speeding up the construction process and improving economic benefits, comprehensive analysis and weighing advantages and disadvantages, the main pier cap adopts a composite cofferdam of filling soil to build an island and combining bored pile rows and steel sheet piles. The construction task of bearing platform of main pier has been completed with high quality. Compared with other cushion cap construction methods, this construction method has the advantages of fast construction, high quality, simple safety, energy saving and environmental protection. This paper briefly introduces the design scheme of composite cofferdam, expounds in detail the operation steps of steel sheet pile construction and the problems needing attention in construction, and provides good reference experience for similar pile cap construction.

Research on Application of Deep Foundation Pit Decompression Dewatering Technology and Impact on Surrounding Environment

2013 ◽  
Vol 671-674 ◽  
pp. 101-104
Author(s):  
Dong Dong Zhang ◽  
Jun Wen Ding ◽  
Rong Biao Wang
Keyword(s):  
Engineering Application ◽  
Pumping Test ◽  
Rail Transit ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Hydrogeological Parameters ◽  
Surrounding Environment ◽  
Practical Engineering ◽  
Research On Application

The studies application of deep foundation pit decompression technology focusing on special engineering geological and hydrogeological conditions. Taking foundation pit dewatering of certain rail transit station as an example, designs deep foundation pit decompression precipitation technology scheme with hydrogeological parameters obtained through pumping test, and assesses and monitors its impacts on surrounding environment according to measured data on project site, which has achieved good results in practical engineering application and provides foundation for construction of rail transit lines.

Application of Carbon Fiber Cloth in Reinforcement of Metro Tunnel Disease

2013 ◽  
Vol 353-356 ◽  
pp. 1525-1528 ◽  
Author(s):  
Yu Jie Li ◽  
Hui Jie Xu ◽  
Yuan Zhang ◽  
Juan Juan Yao
Keyword(s):  
Carbon Fiber ◽  
Nondestructive Test ◽  
Tunnel Lining ◽  
Construction Technology ◽  
Mining Method ◽  
Carbon Fiber Cloth ◽  
Lining Structure ◽  
Structure Strength ◽  
Metro Tunnel ◽  
Reinforcement Measures

It is study about crack diseases on tunnel lining of BEI JING metro, which is build by mining method. To begin with, the design information, the neighboring environment and the base characteristic of the tunnel is investigated. Meanwhile, the nondestructive test is working on the tunnel lining. On the basis of understanding all the disease forms, the reinforcing measure on tunnel lining is specifically formulated. This article mainly introduce the advantages and technical indicators of carbon fiber cloth, and the detailed construction technology of carbon fiber cloth in reinforcement of metro tunnel disease, that caused by local lining structure strength is not sufficient. This introduced reinforcement measures, which uses carbon fiber cloth in metro diseases could guide in the same engineering.

scholarly journals Application of Electromechanical Installation Construction Technology in Practical Engineering

2020 ◽  
Vol 2 (2) ◽  
pp. 58
Author(s):  
Zichuan Huang
Keyword(s):  
Practical Experience ◽  
Engineering Practice ◽  
Construction Technology ◽  
Construction Engineering ◽  
Continuous Innovation ◽  
Practical Engineering ◽  
Installation Technology ◽  
The Relationship

<p>Nowadays, with the continuous development of economy and society, the frequency of electromechanical installation projects in various industries is getting higher and higher. With the continuous improvement of mechanization level, the requirements for business personnel engaged in mechanical and electrical installation engineering are getting higher and higher. Electromechanical installation is a very important part in construction engineering. Only through continuous innovation, technical renewal and transformation, can the engineering function be effectively guaranteed and the economic benefit be increased. As urban construction enters the fast lane, people's requirements for the quality of life are gradually improved. The installation of construction electromechanical projects is the most prominent link in construction engineering, so construction units should pay attention to the installation of engineering electromechanical projects. The emphasis of engineering electromechanical installation is the control of installation quality and the innovation of installation technology. Based on the author's practical experience, this article first emphasizes the necessity of electromechanical installation, and then explains the relationship between construction engineering and electromechanical installation in combination with engineering practice, aiming at emphasizing the irreplaceable role of electromechanical installation in construction engineering.</p>

scholarly journals New approaches towards explaining construction methods of the great pyramid at KeopsBüyük pramitlerin inşasının Keops Piramidiyle açıklanması

2015 ◽  
Vol 12 (2) ◽  
pp. 8
Author(s):  
İsmail Yılmaz
Keyword(s):  
Muscle Power ◽  
Weight Bearing ◽  
Brute Force ◽  
Construction Site ◽  
The Third ◽  
New Approaches ◽  
Construction Methods ◽  
Time Period ◽  
Great Pyramid ◽  
Expected Values

<p>The importance of the Keops pyramid in terms of size and mass, has led to the proposal of three theories as to its modes of construction. The first theory argues that elephants and soldiers were employed for this work, which suggests considerable application of muscle power. The second states that the quarried stone blocks were transported to the pyramid construction site using elephants on a weight-bearing mechanism. The third suggests that stone blocks carried to the pyramid, were first uplifted with brute force, following which they were carried to the top, using the principle of buoyancy of water, through a system of graded pools. Theories suggested for the construction of this pyramid, can be applied to that of other pyramids. This paper analyses the construction of pyramids in terms of issues related to the quarry, stages of transport of stones from the quarry to the pyramid site and the final construction stage. Based on the theories explained in this study, the time period for the construction of the pyramid will be calculated, using expected values derived from the four different pool systems.</p><p> </p><p><strong>Özet</strong></p><p>Boyut ve kütle değerleriyle Keops Piramidi ön plana çıktığından, büyük piramitlerin inşası, bu piramit için geliştirilen üç teoriyle açıklanacaktır. Bu teorilerden birincisi, piramit inşasında kas gücünü zorlayan işlerde fil ve askerler çalıştırılabilir. İkincisi, ocaktan kesilen taş bloklar, ağırlık aktarmalı düzenekte filler kullanılarak, piramide taşınabilir. Sonuncusu, piramide taşınarak getirilen taş bloklar, kas gücünün üst sınırları zorlandığı noktaya kadar çıkarılıp, sonrasında basamaklı havuzlarda sıvının kaldırma kuvvetinden yararlanılarak üst noktaya kadar taşınıp piramit inşa edilmiş olabilir. Bu piramidin inşası için geliştirilen teoriler diğer piramitlerin inşası içinde kullanılabilir. Piramitlerin inşası; taş blokların alındığı ocak, taş blokları ocaktan piramide taşıma ve piramidin inşaat aşaması olarak üçe ayırıp, iki aşaması incelenecektir. Bu çalışmada ocak aşaması incelenmeyecektir. Burada verilecek teoriler için dört farklı havuz sistemine olası değerler verilerek piramidin inşaat süresi hesaplanacaktır.</p>

scholarly journals Using Mobile Computing and Information Technology in Civil Engineering Construction Projects

2005 ◽  
Vol 2 (1) ◽  
pp. 25 ◽  
Author(s):  
M.N. Jadid ◽  
M.M. Idress
Keyword(s):  
Information Technology ◽  
Mobile Computing ◽  
Construction Industry ◽  
Construction Projects ◽  
Civil Engineering ◽  
Construction Site ◽  
Engineering Construction ◽  
Construction Methods ◽  
Engineering Construction Project ◽  
The Impact

Mobile computing technology has an enormous potential in civil engineering, mainly in the field of construction management. This paper presents an approach by using mobile computing in a civil engineering construction project, exploring how information can be exchanged at a construction site, and how billing of quantities (BOQ), drawings and specifications are shared for the benefit of the project. One of the major obstacles in using information technology (IT) when applied to civil engineering is due to the dynamic changes in the construction activities and the diversity of construction methods as compared to other industries. This has proved to be a great disadvantage when trying to give construction sites adequate IT support. Computers require infrastructure, which can be transferred easily to the head office, but rarely to the construction site itself in a systematic way. Therefore, the impact of IT on the way the construction industry actually works has not been significantly utilized. This paper consists of two main parts. The first part defines the concept of mobile computing, describes some recent research, and stresses the potential for the construction industry. The second part is focuses on an approach, implementing mobile computing in a real construction site. 

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