scholarly journals Research on Design and Construction Key Points of HVAC Engineering in Civil Engineering

2011 ◽  
Vol 480-481 ◽  
pp. 1266-1270
Author(s):  
Liu Hui

During the pipe jacking construction, the bearing plates of jack need the support of great reactive force which is provided by the side-wall of the working shaft and the soil mass behind the wall. In the shallow pipe-jacking working shaft, the soil mass only can provide limited reactive force due to the small height of the soil mass behind the side-wall, which becomes the difficult point in the design and construction of the shallow pipe-jacking working shaft. This thesis takes the actual projects for the examples to introduce the construction technology of shallow pipe-jacking working shaft in details, including the construction key points like pre-grouting injection consolidation, ring beam construction method as well as reverse construction method.


Author(s):  
Xu-dong Wang ◽  
Guang-li Zhou ◽  
Hai-yan Liu ◽  
Qing Xiao

2019 ◽  
Vol 40 ◽  
pp. 48
Author(s):  
Angélico Loreto Teixeira ◽  
Lucas Giuliani Scherer ◽  
Ana Alice Timm Gorretti

The high cost of assembling laboratories for higher education is a challenge when there is a contingency of resources. An alternative to overcome the high cost in the development of the basic structures of the teaching laboratories, is the designing and implementation of laboratory workbenches, built with the help of teachers, technicians and university students. In this work will be approached the project of didactic workbenches for the laboratory of electrical installations, capable of attending the most varied menus, as well as courses such as Electrical Engineering, Civil Engineering, Architecture and Urbanism, among others. Analyzing from a financial point of view, there is an economy above 90%, compared to commercial didactic workbenches in market. In addition, taking into account the teaching-learning aspect of the students, the benefits are greater, since the very design, design and construction of the benches represent an important form of practical learning. In addition, the workbench aims to increase the degree of complexity of the tasks compared to the existing equipment in the market, since it encompasses more concepts. For the acquisition of materials, it is suggested the use of institutional resources or partnership with public and private companies.


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