灰土地下渠道和管理式地下渠道一样,是农田基本建设的新内容之一。它与明渠比较,具有节约土地、省水、省电、降低农业成本等优点。用灰土建造地下渠道更具有就地取材、降低工程造价的特点。现将黄岩县东山公社头大队修建的灰土地下渠道的施工部分介绍于下,供有关 As with the underground underground pipelines, it is one of the new contents of farmland infrastructures. Compared with open channel, it has the advantages of saving land, saving water, saving electricity and reducing agricultural cost. Construction of underground channels with lime more local materials, reduce project cost characteristics. Now Huangyan County Dongshan commune head battalion construction of limestone underground passage of the construction section introduced below, for the relevant