Design Of Double Shell Shield Machine

Shield machine is a special construction machinery for tunneling,modern shield machine integrates light,the functions of machine,electricity,liquid,sensing,information technology,to achieve the function of mining and cutting soil,conveying ballast,assembling tunnel lining,surveying guide rectifying and so on,and related to geology,civil engineering,mechanical,hydraulic,electrical,control,surveying and other disciplines technology,But also according to different geological "customization" to meet the different types of design and manufacture and high reliability requirements.Shield tunneling machine has been widely used in subway,railway,highway,municipal,hydropower and other tunnel projects.The design of the double shell shield machine,after the Shield tunneling completed,backward demolition machine,the outer sacrificial shell left,the internal mainframe and shield main structure can be recycled and reused for next por.This program is used for more foreign projects,one line subcontracting to many contractors,in order to avoid the equipment from other contractors responsible for the removal of the shaft,and take the excavation completed after the backward demolition machine,from the beginning of the demolition of the way,but the traditional way for the destruction of the host demolition,often the entire host shield scrap,demolition after the need to rebuild the shield,a large amount of The sacrificial shell of this scheme is only a layer of steel plate,after the demolition of the new new sacrifice shell can save a lot of costs.This paper introduces the overall scheme design of the double shell shield machine,the structure design and type selection of the double shell shield machine parts,the design and calculation of the shield machine,and puts forward the research significance and the research content of the existing Shield machine development.By using auto CAD drawing software and advanced pro three-dimensional finite element software in mechanical engineering,the structure design and force analysis of the main key parts of the double shell shield machine are carried out,and the reasonable structure of the double shell shield machine is designed.Combined with the engineering needs,a preliminary design of the double Shell Shield machine is made,which provides some references for the following design.