考虑水温影响的多水管对垃圾土温度影响分析  

Analysis of the Influence of Multiple Water Pipes on the Temperature of Waste Soil Considering the Influence of Water Temperature

作　　者：董锋 章涛 DONG Feng;ZHANG Tao(Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China;School of Civil Engineering and Architecture,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098 [2]南昌航空大学土木建筑学院,江西南昌330063

出　　处：《粉煤灰综合利用》2020年第1期114-118,共5页Fly Ash Comprehensive Utilization

基　　金：国家自然科学基金项目(1046-515030811)。

摘　　要：垃圾土在填埋场降解过程中产生的热量会使垃圾土自身温度不断升高,而过高的温度对填埋气、衬垫系统以及垃圾填埋场的安全都会产生影响,因此填埋场现场常通过水循环对垃圾土温度进行控制。本文首先通过作用面积相等的原则对多水管梅花形和矩形排列进行简化,然后建立了考虑水温升高的多水管对垃圾土降温模型,推求模型解答,并用工程实例现场参数拟合,计算结果符合实际情况。该模型提供了计算水管降温的一种新方法。The heat produced by waste soil in the degradation process of landfill will make the temperature of waste soil increase continuously,and the excessive temperatures have an impact on landfill gas,liner systems,and the safety of the landfill.Water circulation was often carried out to control waste temperature in landfill.Firstly,this paper simplifies quincunx and rectangular arrangements of pipes,then the cooling model considering the rising water temperature was established,and the mode was solved.The calculation results by using the example field parameters were according with the actual situation.The model provided a new method for calculating water pipe cooling.

关 键 词：填埋场 垃圾土 水循环 降温模型 

分 类 号：X705[环境科学与工程—环境工程]