大型钢筋混凝土预制弧板支护是对付软岩巷道围岩破碎、膨胀和风化的有效办法。本文介绍了比利时发展弧板支护的过程和现状,以及所用弧板的结构、尺寸、特点、衬垫材料和安装工艺等,并指出弧板的安装机具是发展弧板支护的关键。对采用弧板支护的三种掘进机械化作业线和我国在这方面所取得的初步进展也作了介绍。 Large-scale reinforced concrete precast arch support is an effective way to deal with the crushing, expansion and weathering of surrounding rock in soft rock roadway. This paper introduces the process and current situation of arc plate support in Belgium, as well as the structure, dimensions, characteristics, gasket materials and installation process of arc plate used in Belgium. It points out that the installation of arc plate is the key to the development of arc plate support. Three types of mechanized tunneling operation using arc plate support and the preliminary progress made by our country in this aspect are also introduced.