灰华粉土物理力学特性研究

Investigation on Physics and Mechanics of Calcified Silt

灰华粉土是一种较特殊的土层,四川省内主要分布于九寨沟、黄龙及攀枝花一带。该层看似坚硬,但孔隙较多,且灰化程度高低不均,物理力学性能差异较大,由于其分布范围窄,国内对其研究较少,目前对其还无成熟的工程评价经验。在攀煤电厂勘察中采用大型直剪试验和平板载荷试验,对灰华粉土层物理力学性特性进行了研究,对工程建设具有重要意义。

Calcified Silt is special soil, distributing Jiuzaigou, Huanglong and Panzhihua in Sichuan. The soil seems hard. It is porous and not uniformity on calcified degree, on physics and mechanics. Because distributing in local area and less study in china, now we don＇ t have experience on engineering geological evaluation. We had some successes investigating on physics and mechanics of calcified silt using in-situ direct test and plate loading test.