Water Content Influence on Properties of Red-Layers in Guangzhou Metro Line, China

Table 5

All mineral X-ray diffraction analysis test results.

Number	Sampling site	Sampling depth (m)	Lithology	Mineral type and content (%)						Total clay minerals (%)
				Quartz	Feldspar	Plagioclase	Calcite	Hematite	Barite
PKD01	Tiyu West Road Station	16	Moderate weathered red clay	47.2	/	14.5	/	2.8	/	35.5
PKD02	Zhujiang New Town Station	17.217.8	Red clay	45.7	/	10.9	/	3.5	/	39.9
PKD03	Wushan Road Station	12	Moderate-strong weathered red clay	33.6	/	14.8	12.2	2.8	/	36.6
PKD04	Zhujiang New Town Station	18.119.0	Sandstone	27.7	/	5.4	21.1	5.7	/	40.1
PKD05	Kecun Station	27.6	Red sandstone	44.1	8	6.1	7.4	1.4	/	33.0
PKD06	Tianhe Station	16	Shield excavated soil	32.9	15.6	6.5	/		/	45.0