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为研究垃圾填埋场的导电特性,建立了一种填埋场直流电阻电路模型,并对回路中的各部分电阻进行了分析.结果表明:随着供电电极直径和入土深度的增加,回路电阻减小,而随着供电电极与漏洞之间距离的增大,回路电阻缓慢增加;漏洞电阻由接触电阻和内阻组成,前者远大于后者,对一个半径为1cm的圆形漏洞来说,接触电阻可达1500Ω,而内阻只占到接触电阻的1/10;在供电电极周围浇水可明显降低回路电阻,在场内电极直径为20mm,入土深度为0.4m,电极与漏洞之间距离为20m时,浇水后的回路电阻可减小26.6%.
In order to study the conductive characteristics of the landfill, a direct current resistance model of the landfill was established and the resistance of each part of the loop was analyzed. The results show that with the increase of the diameter of the feeding electrode and the penetration depth, the loop resistance With the distance between the power supply electrode and the loophole increases, the loop resistance increases slowly; the loophole resistance consists of the contact resistance and the internal resistance, the former is much larger than the latter. For a circular loophole with a radius of 1 cm, The contact resistance can reach 1500Ω, while the internal resistance only accounts for 1/10 of the contact resistance. Watering around the power supply electrode can obviously reduce the loop resistance. The diameter of the electrode in the field is 20mm, the depth of the soil is 0.4m, the distance between the electrode and the hole When it is 20m, the resistance of the circuit after watering can be reduced by 26.6%.