摘要
透水型拦挡坝是用于泥石流防治的一种新型建筑物。它能有选择地拦蓄泥石流中的粗大颗粒，排走碎屑、泥浆和流体中的自由水，使进入库内的泥石流被很快地疏干，实现土水分离。泥石流停淤并固结后，格栅和坝体承受的荷载减少，结构强度和稳定性增加，坝库功效提高且使用年限更久。透水型拦挡坝比之实体圬工坝具有结构坚固耐用，节省材料，降低造价，便利施工，库容利用系数高，维护管理方便等许多优点。因而日益被广泛采用，是一类很有发展前途的新坝型。
he permeable dam is a new construction applied to debris flow control. It is able to selectively block the course gravel, and discharge the water in debris, mud and fluid so that the debris flow may be drained off and separated into water and soil. After debris flow silting and consolidating, the load to grille and dam body will reduce and their structural strength and stability will increase, as well as the effects of the dam may heighten and the service life may be more long. The permeable dam has so many advantages as its sturdy and durable structure, less cost and convenient construction, and high available coefficient of storage as well as easy maintenance and management. It is a new type of debris flow dam with developing prospect.
出处
《中国地质灾害与防治学报》
CSCD
1997年第4期60-66,共7页
The Chinese Journal of Geological Hazard and Control
