公路建设中常存在路基塌陷、下沉等质量问题，其中最重要的一个原因就是压实不够，这一点在刚性水泥路面路基的施工中尤为突出。目前我国已研制出由１８ｔ至 ２５ｔ级的重型压实设备，这对促进基础压实技术的进步、提高压实质量将有重要的意义。本期集中介绍一下由陕西中大机械集团研制出的系列超重吨位拖式振动压路机和一拖（洛阳）建筑机械有限公司研制出的我国最大吨位的ＹＺ２５ＧＤ振动压路机。 Road construction often subsides, sinking and other quality problems, one of the most important reason is the compaction is not enough, this point in the construction of rigid concrete pavement in particular. At present, China has developed a heavy-duty compaction equipment from 18t to 25t class, which will be of great significance to promote the progress of basic compaction technology and improve the compaction quality. This issue focuses on a series of YZ25GD vibratory rollers developed by Shaanxi Zhongda Machinery Group and developed by China Yituo (Luoyang) Construction Machinery Co., Ltd., China’s largest tonnage.