重粉质壤土泥浆泵筑坝人工管网排水技术研究  

Artificial Drainage Networks for Building Mud Dams Using Heavy Silt Loam

作　　者：王盼[1] 朱首军[1] 芦杰丰[1] 马宁[1] 李聪会[1] 马笑[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《水土保持通报》2012年第2期127-131,共5页Bulletin of Soil and Water Conservation

基　　金：陕西省水利厅水保重点科研项目"泥浆泵筑坝技术试验研究"(002-0701)

摘　　要：人工管网排水技术在泥浆泵筑坝工艺中的应用,为重粉质壤土区修筑泥浆坝提供了基础资料和理论指导,也为同类地区推广应用该筑坝技术,普及该排水措施提供了科学依据。以陕西省白水县西武村附近雷牙沟流域的黄土作为试验对象,对该排水系统的布设、施工方法及其排水效果进行了试验研究。结果表明,排水管道的材料选定和管道布设形式是影响坝体排水的决定性因素;聚乙烯微孔波纹管排水系统在一定程度上加速坝体脱水固结,但效果不显著;重粉质壤土黏粒含量较高,致使泥浆排水困难。人工管网排水技术在泥浆泵筑坝试验中的应用加速了坝体脱水固结,但是效果不佳,还需不断总结经验,选取理想的管道滤水材料,合理布设排水管道并完善排水设施。The application of the artificial network drainage system in the techniques of dam construction using slurry pumps provides practical examples and theoretical guidance for building mud dams in the heavy silt loam region,as well as scientific basis for promoting and populating this technology in the similar areas.The loess soils from Dagou basin near Xiwu village of Baishui County in Shaanxi Province were collected as study materials.The layout of drainage system,construction methods and drainage effects were investigated and compared in this study.The designs and the layout of the drainage pipeline influenced decisively the effectiveness of the drainage.The drainage system using polyethylene corrugated pipes with micro-apertures could speed up the dehydration and consolidation of the dam to some extent,but the effect was not highly significant.The heavy silt loam had a high content of clay,which lead to the difficulty in drainage.The utilization of artificial network drainage technology in building dams with mud pumps in deed accelerated the dehydration and consolidation of the dams,although the effects were not highly significant.More investigations are required in selecting optimal pipes as filtering materials,designing drainage pipes reasonably and improving the layout plans.

关 键 词：人工管网排水技术 重粉质壤土 脱水固结 

分 类 号：S276.5[农业科学—农业水土工程] TV641.2[农业科学—农业工程]