Slope stability and bearing capacity of landfills and simple on-site test methods
Slope stability and bearing capacity of landfills and simple on-site test methods
复制标题
垃圾填埋场边坡稳定性和承载力及简单的现场测试方法
DOI：
10.1177/0734242x17706055
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发表时间：
2017
影响因子：
3.9
通讯作者：
K. Omine
中科院分区：
文献类型：
--
作者：
A. Yamawaki;Yoichi Doi;K. Omine
本研究探讨强度特性（边坡稳定性、承载力等）通过在日本和其他三个国家的19个地点的29个地点进行的现场测试，对垃圾填埋场的机械强度进行了分析，并提出了现场测试和评估填埋场机械强度的简单方法。此外，使用垃圾填埋场的可能性进行了调查，通过全尺寸偏心加载试验。因此，发现含有超过约10厘米长的塑料或其他纤维材料的垃圾填埋场是有弹性的，难以屈服。现场足尺试验证明，无差异沉降发生。休止角试验作为一种简单的现场测试方法，已被证实是一个很好的边坡稳定性评价指标。休止角试验表明，具有高，近饱和含水量的垃圾填埋场有相当差的边坡稳定性。休止角试验和冲击加速度试验的结果分别与内摩擦角和粘聚力有关。除此之外，还发现通过现场空气孔体积比测试测量的空气孔体积比可能与各种强度参数相关。
This study discusses strength characteristics (slope stability, bearing capacity, etc.) of waste landfills through on-site tests that were carried out at 29 locations in 19 sites in Japan and three other countries, and proposes simple methods to test and assess the mechanical strength of landfills on site. Also, the possibility of using a landfill site was investigated by a full-scale eccentric loading test. As a result of this, landfills containing more than about 10 cm long plastics or other fibrous materials were found to be resilient and hard to yield. An on-site full scale test proved that no differential settlement occurs. The repose angle test proposed as a simple on-site test method has been confirmed to be a good indicator for slope stability assessment. The repose angle test suggested that landfills which have high, near-saturation water content have considerably poorer slope stability. The results of our repose angle test and the impact acceleration test were related to the internal friction angle and the cohesion, respectively. In addition to this, it was found that the air pore volume ratio measured by an on-site air pore volume ratio test is likely to be related to various strength parameters.