Crime is often associated with urban development as urban areas tend to be at greater risk security-wise as compared with other areas. This is the reality of an increasing population crowding into the cities, and fome...Crime is often associated with urban development as urban areas tend to be at greater risk security-wise as compared with other areas. This is the reality of an increasing population crowding into the cities, and fomenting crime in the process. The physical design of the environment also contributes to the escalating crime rate, resulting in fear and anxiety among the residents. The ＂Safe Township＂ concept is an approach to resolving the issue of security in urban areas. It is an agenda within the concept of liveable cities that focuses principally on the problems of urban security. The development of properties within the concept of Gated Community housing is considered a step towards protecting residents in a residential area. The development of fenced Gated Community housing equipped with full-time security facilities is among the strategies in implementing the concept of the Safe Township. This paper discusses the security features in the Gated Community housing development as measures to combat crime in line with the implementation of the Safe Township concept. This study adopts an investigative methodology that combines theory with case studies. The compilation of data was made through literature search, interviews with representatives from the Town Planning Department and data were also collected through observations of Gated Community housing schemes in Johor Bahru.展开更多
Caving of mine roofs from water inrush due to anomalous pressure is one of the major disasters and accidents that can occur in mines during production.Roof water inrush can trigger a wide range of roof collapse,causin...Caving of mine roofs from water inrush due to anomalous pressure is one of the major disasters and accidents that can occur in mines during production.Roof water inrush can trigger a wide range of roof collapse,causing major accidents from breaking roof supports while caving.These failures flood wells and do a great deal of damage to mines and endanger mine safety.Our objective is to analyze the anomalies of water inrush crushing the support at the #6301 working face in the Jisan Coal Mine of the Yanzhou Mining Group.Through information of water inrush to the roof,damage caused by tectonic movements,information on the damage caused by roof collapse and the theory about the distribution of pressure in mine abutments,we advice adjusting the length of the working face and the position of open-off cut relatively to the rich water area.In the case of anomalous roof pressure we should develop a state equation to estimate preventive measures with＂transferring rock beam＂theory.Simultaneously, we improve the capacity of drainage equipment and ensured adequate water retention at the storehouse. These are all major technologies to ensure the control and prevention against accidents caused by anomalous water inrush in roofs,thus ensuring safety in the production process of a coal mine.展开更多
文摘Crime is often associated with urban development as urban areas tend to be at greater risk security-wise as compared with other areas. This is the reality of an increasing population crowding into the cities, and fomenting crime in the process. The physical design of the environment also contributes to the escalating crime rate, resulting in fear and anxiety among the residents. The ＂Safe Township＂ concept is an approach to resolving the issue of security in urban areas. It is an agenda within the concept of liveable cities that focuses principally on the problems of urban security. The development of properties within the concept of Gated Community housing is considered a step towards protecting residents in a residential area. The development of fenced Gated Community housing equipped with full-time security facilities is among the strategies in implementing the concept of the Safe Township. This paper discusses the security features in the Gated Community housing development as measures to combat crime in line with the implementation of the Safe Township concept. This study adopts an investigative methodology that combines theory with case studies. The compilation of data was made through literature search, interviews with representatives from the Town Planning Department and data were also collected through observations of Gated Community housing schemes in Johor Bahru.
基金sponsored by the National Natural Science Foundation of China(No.50874021 )the Program for New Century Excellent Talents in University(No.NCET-08-0833)the Program for Changjiang Scholars and Innovative Research Team in University(No.IRT0656) of the Ministry of Education of China.
文摘Caving of mine roofs from water inrush due to anomalous pressure is one of the major disasters and accidents that can occur in mines during production.Roof water inrush can trigger a wide range of roof collapse,causing major accidents from breaking roof supports while caving.These failures flood wells and do a great deal of damage to mines and endanger mine safety.Our objective is to analyze the anomalies of water inrush crushing the support at the #6301 working face in the Jisan Coal Mine of the Yanzhou Mining Group.Through information of water inrush to the roof,damage caused by tectonic movements,information on the damage caused by roof collapse and the theory about the distribution of pressure in mine abutments,we advice adjusting the length of the working face and the position of open-off cut relatively to the rich water area.In the case of anomalous roof pressure we should develop a state equation to estimate preventive measures with＂transferring rock beam＂theory.Simultaneously, we improve the capacity of drainage equipment and ensured adequate water retention at the storehouse. These are all major technologies to ensure the control and prevention against accidents caused by anomalous water inrush in roofs,thus ensuring safety in the production process of a coal mine.
