赣南红盆基岩特征及工程勘察应注意的问题

Characteristics of bedrock in red basin of South Jiangxi and problems needing attention in engineering exploration

赣南红盆基岩在横向上和纵向上力学性质均有差异,这类基岩往往存在泥化、砂化软弱夹层,而且具有明显的浸水易软化、暴露于空气中失水易风化裂解的特点。因此,对其进行工程勘察时,应采取措施提高岩心采取率,尤其弱夹层岩心的采取率。

The mechanical properties of bedrock in red basin of South Jiangxi have differences in both horizontal and vertical. This kind of bedrock has argillaceous and sandy weak interlayers. It is easy to soften when soaked with watar, and to split when exposed to air. Hence, measures should be adopted to raise percentage of coring in engineering exploration of red basin, especially to raise percentage of coring in weak interlayers.