Highway is an important channel to connect regional economic development,and is an indispensable part of modern transportation system.In view of the extensive nature of highway cover space and the existence of diversi...Highway is an important channel to connect regional economic development,and is an indispensable part of modern transportation system.In view of the extensive nature of highway cover space and the existence of diversified construction environment,climate and geological influence in highway construction,soft soil foundation is one of the more typical geological forms.With wide distribution in our country,seen as a big difficulty,highway construction technology and directly affect the quality of highway construction,cost,if not properly handled,will cause the soft soil foundation highway engineering structure is not stable,prone to accidents in use.In this paper,we study the treatment of soft soil foundation in highway construction,and put forward some reasonable Suggestions.展开更多
It is very important to monitor surrounding rock deformation in tunnel construction. The principle, function, development and application of the system composed of a total station and computer for monitoring and analy...It is very important to monitor surrounding rock deformation in tunnel construction. The principle, function, development and application of the system composed of a total station and computer for monitoring and analyzing surrounding rock deformation were discussed. The new methods of two free station of 3D measurement and its mathematic adjustment mode were presented. The development of software for total station on-board and post for computer were also described. Without centering it and measuring its height, the total station controlled by the software on-board can fulfill the whole measurements to target points. Monitoring data can be processed by the post software and results of regression analysis, forecasting information of the tunnel surrounding rock deformation can be provided in time. The practical use shows that this system is practicable, highly accurate and efficient. It satisfies the needs of safety and information construction in tunnel construction of underground engineering.展开更多
文摘Highway is an important channel to connect regional economic development,and is an indispensable part of modern transportation system.In view of the extensive nature of highway cover space and the existence of diversified construction environment,climate and geological influence in highway construction,soft soil foundation is one of the more typical geological forms.With wide distribution in our country,seen as a big difficulty,highway construction technology and directly affect the quality of highway construction,cost,if not properly handled,will cause the soft soil foundation highway engineering structure is not stable,prone to accidents in use.In this paper,we study the treatment of soft soil foundation in highway construction,and put forward some reasonable Suggestions.
基金Project(2000G033) supported by the S & T, Ministry of Railroad , China
文摘It is very important to monitor surrounding rock deformation in tunnel construction. The principle, function, development and application of the system composed of a total station and computer for monitoring and analyzing surrounding rock deformation were discussed. The new methods of two free station of 3D measurement and its mathematic adjustment mode were presented. The development of software for total station on-board and post for computer were also described. Without centering it and measuring its height, the total station controlled by the software on-board can fulfill the whole measurements to target points. Monitoring data can be processed by the post software and results of regression analysis, forecasting information of the tunnel surrounding rock deformation can be provided in time. The practical use shows that this system is practicable, highly accurate and efficient. It satisfies the needs of safety and information construction in tunnel construction of underground engineering.