Spatial Layout Optimization of Jet Ventilation Fan for the Rectangular Large Section Underwater Tunnel

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Xuan Zheng ◽  
Shuai Fu ◽  
Xue Li ◽  
Liping Li ◽  
Yi Lu
Keyword(s):  
Spatial Layout ◽  
Layout Optimization ◽  
Jet Ventilation ◽  
Large Section ◽  
Underwater Tunnel ◽  
Ventilation Fan

scholarly journals Development of a Composite Model for Simulating Landscape Pattern Optimization Allocation: A Case Study in the Longquanyi District of Chengdu City, Sichuan Province, China

2019 ◽  
Vol 11 (9) ◽  
pp. 2678
Author(s):  
Dinghua Ou ◽  
Xingzhu Yao ◽  
Jianguo Xia ◽  
Xuesong Gao ◽  
Changquan Wang ◽  
...  
Keyword(s):  
Landscape Pattern ◽  
Land Use Planning ◽  
Spatial Layout ◽  
Layout Optimization ◽  
Sichuan Province ◽  
Landscape Patterns ◽  
Ecological Security ◽  
Quantitative Structure ◽  
Landscape Suitability ◽  
Optimization Allocation

The simulation of landscape pattern optimization allocation (LPOA) to achieve ecological security is an important issue when constructing regional ecological security patterns. In this study, an LPOA model was developed by integrating a binary logistic regression model and a nonlinear programming model with a particle swarm optimization algorithm in order to consider the complexity of landscape pattern optimization in terms of the quantitative structure and spatial layout optimization, integrating the landscape suitability and factors that influence landscape patterns, and under constraints to maximize the economic, ecological, and comprehensive benefits of landscape patterns. The model was employed to simulate the LPOA in the Longquanyi District of Chengdu City, Sichuan Province, China. The model successfully obtained an appropriate combination of the landscape quantitative structure and spatial layout, as well as effectively integrating the landscape suitability and factors that influence the landscape pattern. Thus, the model addressed the problems of previous studies, such as neglecting the coupling between quantitative structure optimization and spatial layout optimization, ignoring the macrofactors that affect landscape patterns during optimization modeling, and initializing particles without considering the suitability of the landscape. Furthermore, we assessed and analyzed the accuracy and feasibility of the landscape pattern spatial layout optimization results, where the results showed that the overall accuracy of the optimization results was 84.98% with a Kappa coefficient of 0.7587, thereby indicating the good performance of the model. Moreover, the simulated optimization allocation scheme for the landscape pattern was consistent with the actual situation. Therefore, this model can provide support and a scientific basis for regional landscape pattern planning, land use planning, urban planning, and other related spatial planning processes.

Keys and Tactics of Existing Barracks Spatial Layout Optimization

2014 ◽  
Vol 1065-1069 ◽  
pp. 1622-1625
Author(s):  
Lei Yan ◽  
Wei Ran Zhou
Keyword(s):  
Control Method ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Spatial Layout ◽  
Layout Optimization ◽  
The Sustainable Development ◽  
Space Construction ◽  
Function Integration ◽  
Land Reuse ◽  
Three Dimensional Space

Spatial layout optimization is a core of existing barracks renewal. Distinguishing from new built barracks, existing barrack spatial layout optimization needs to pay more attention to solve the contradiction between current and future. So in this chapter, we develop six primary design keys applied to existing barracks including harmony relations between barrack and its surrounding environment, emphasis on weakness construction, optimize allocation, improve security defense capabilities, enhance artistry of spatial layout and realize the whole structure optimization. Reference to ancient classical fortification thoughts and current construction conditions, we also explore 5 tactics to optimize existing barracks spatial layout , namely, function integration method, node co-ordinate method, axis control method, three-dimensional space construction method, as well as idle land reuse method. Finally, we choose one tipical case to integrated apply the above keys and tactics from theoretical and practical fields promoting the sustainable development of existing barrack .

Research on Bearing Mechanism and Spatial Layout Designing Parameters of Arch Support in Large Section Tunnel

2019 ◽  
Vol 37 (5) ◽  
pp. 4421-4434 ◽  
Author(s):  
Hui Qi ◽  
Wei Lu ◽  
Tiantao Zhang ◽  
Hongbin Chen ◽  
Zhaoming Chi ◽  
...  
Keyword(s):  
Spatial Layout ◽  
Large Section ◽  
Arch Support

A Spatial Layout Optimization Program considering the Survivability of a Naval Vessel in the Early Design Stage

2019 ◽  
Vol 35 (2) ◽  
pp. 126-138
Author(s):  
Yong-Kuk Jeong ◽  
Youngmin Kim ◽  
Su Heon Ju ◽  
Jong Gye Shin ◽  
Jong Chul Kim ◽  
...  
Keyword(s):  
Spatial Layout ◽  
Layout Optimization ◽  
Design Stage ◽  
Naval Vessel ◽  
Optimization Program ◽  
Early Design ◽  
Early Design Stage

TATA RUANG KOTA CIAMIS PASCAPERDAGANGAN DUNIA ABAD KE-19 – 20

PANALUNGTIK ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 41-60
Author(s):  
Nanang Saptono
Keyword(s):  
20Th Century ◽  
Development Process ◽  
Industrial Area ◽  
Spatial Layout ◽  
Research Data ◽  
City Development ◽  
Descriptive Research ◽  
Economic Infrastructure ◽  
Ancient Maps ◽  
The City

The capital of Ciamis Regency has experienced several displacements. During the reign of Raden Adipati Aria Kusumadiningrat the development of the capital was encouraged to develop into a city. After the kulturstelsel era, many European capitalists invested in Ciamis. At the beginning of the 20th century economic infrastructure, especially the means of distribution of commodities is much needed. Building economic facilities have sprung up in several locations in Ciamis. Such conditions result in the development of the city. This study aims to get a picture of the spatial layout of Ciamis and the city development process. The research method applied descriptive research. Data collection is done through direct observation in the field and accompanied by the utilization of instrument in the form of ancient maps. In the area of Ciamis City there are still some old building objects that can be used as a spatial bookmark of the city. At a glance the city's development spontaneously, but visible on the basis of existing infrastructure, in the 20th century the city of Ciamis showed a planned city. The growth of Ciamis city is of course influenced by several factors including economic and geographical factors.Keywords: city, layout, planned, industrial area

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