一引言本文介绍了CF混杂FRP制造的农业用宽槽长跨距水渠铺设在泥煤土软地基上的开发应用例。北海道的石狩平原面积为3800m~2,其中部有面积约为1200m~2的低地。它的表层是由未分解的植物遗体构成的泥煤土,覆盖厚度为2～6m,下层夹杂着粘土、泥煤质土和淤泥等。水田灌溉用明水渠的铺设,常用的施工方法是把支撑桁架打入稳定地基,把钢筋混凝土制的弓 I. INTRODUCTION This paper introduces the development and application of agricultural wide-span long-span aqueducts made of CF-hybrid FRP laid on soft ground of peat soil. Hokkaido’s Ishikari plain area of ​​3800m ~ 2, the central area of ​​about 1200m ~ 2 low. Its surface is composed of undivided plant remains of mud soil, covering a thickness of 2 ~ 6m, the lower mixed with clay, clay soil and mud and so on. Paddy irrigation with clear water channel laying, the common method of construction is to support the truss into a stable foundation, the bow made of reinforced concrete