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首页> 外文会议>Symposium on the Application of Geophysics to Engineering and Environmental Problems >CHARACTERIZATION OF SOLID WASTE IN A BIOREACTOR LANDFILLUSING SEISMIC BOREHOLE METHODS
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CHARACTERIZATION OF SOLID WASTE IN A BIOREACTOR LANDFILLUSING SEISMIC BOREHOLE METHODS

机译：生物反应器陆地填埋场抗震钻孔方法中固体废物的特征

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摘要

The biodegradation of solid waste in bioreactor landfills is dependant on a number of factors including moisture content. Identification of relatively wet and dry areas throughout the landfill would help operators determine where moisture should be added or not. This study attempts to utilize seismic borehole techniques to identify changes in seismic wave velocity through the waste due to the addition of moisture. The study is based on the principle that P-wave velocity in a porous material increases with moisture content. The bioreactor landfill surveyed is located in Ste. Sophie, Quebec, Canada. Two vertical boreholes were installed 10 m apart and to a depth of 15 m, in order for vertical seismic profiles to be obtained. An initial characterization survey was conducted to understand seismic wave propagation through the waste. The P-wave velocity is on the order 290-370 m/s and the S-wave velocity is on the order of 140-175 m/s. Two-day surveys were conducted to note changes in P-wave velocity under relatively dry and wet conditions. There was no measurable change in P-wave velocity after the addition of approximately 7000 L of water between the boreholes. This is most likely due to that fact that it was not possible to sample the area between boreholes where change was most likely to occur and it was not possible to control exactly where the water was being added.
机译：生物反应器垃圾填埋场固体废物的生物降解取决于包括水分含量的多种因素。在整个垃圾填埋场识别相对潮湿和干燥的区域将有助于运营商确定应添加水分的位置。该研究试图利用地震钻孔技术来识别由于添加水分而通过废物的地震波速度的变化。该研究基于多孔材料中P波速度的原理随水分含量而增加。调查的生物反应器垃圾填埋场位于STE。索菲，魁北克，加拿大。两个垂直钻孔分开10米，深度为15μm，以便获得垂直地震型材。进行了初始表征调查以了解通过废物的地震波传播。 P波速度是在第290-370 M / s的顺序上，S波速度约为140-175 m / s。进行两日调查，记下相对干燥和潮湿条件下的P波速度的变化。在钻孔之间加入大约7000升水后，P波速度没有可测量的变化。这很可能是因为不可能在最有可能发生变化的钻孔之间捕获钻孔之间的区域，并且无法准确控制水的加入水。

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