With the coordinated development of social economy and technology today,various advanced construction techniques and well-established management measures have begun to be widely used in coal-tunnel construction.Howeve...With the coordinated development of social economy and technology today,various advanced construction techniques and well-established management measures have begun to be widely used in coal-tunnel construction.However,in the construction process of low-gas tunnels,it will also cause a certain degree of adverse impact on the construction quality and safety due to the lack of technical experience and management experience to a certain extent.Based on this,this paper takes the actual tunnel project of a coal mine as an example to analyze the main construction technology and safety management measures of low-gas tunnels,so as to provide guarantee for the quality and safety of such tunnel construction.展开更多
Combined with the construction of prestressed continuous box girder of Bailongjiang super large bridge in Xiazongjiaba of WJSJ2 contract section of G8513 Pingliang to Mianyang national expressway and Wudu to Jiuzhaigo...Combined with the construction of prestressed continuous box girder of Bailongjiang super large bridge in Xiazongjiaba of WJSJ2 contract section of G8513 Pingliang to Mianyang national expressway and Wudu to Jiuzhaigou (Ganchuan boundary), this paper analyzed the application of prestressed continuous box girder support formwork design, concrete pouring technology, prestressed steel tendon tension sequence and vacuum assisted grouting technology.展开更多
文摘With the coordinated development of social economy and technology today,various advanced construction techniques and well-established management measures have begun to be widely used in coal-tunnel construction.However,in the construction process of low-gas tunnels,it will also cause a certain degree of adverse impact on the construction quality and safety due to the lack of technical experience and management experience to a certain extent.Based on this,this paper takes the actual tunnel project of a coal mine as an example to analyze the main construction technology and safety management measures of low-gas tunnels,so as to provide guarantee for the quality and safety of such tunnel construction.
文摘Combined with the construction of prestressed continuous box girder of Bailongjiang super large bridge in Xiazongjiaba of WJSJ2 contract section of G8513 Pingliang to Mianyang national expressway and Wudu to Jiuzhaigou (Ganchuan boundary), this paper analyzed the application of prestressed continuous box girder support formwork design, concrete pouring technology, prestressed steel tendon tension sequence and vacuum assisted grouting technology.
