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咸阳市区的渭河二级阶地具有多层结构,其中有一层古土壤,从层序上看是自地表向下计的第六个土层,它是第四纪晚更新世(Q_3~2)风积冲积后经成壤作用而形成的褐红色土层。该层顶面分布高程为383米左右,厚度约3～4米,一般埋深近10米,常处於地下水位变动带。我队曾于该区进行过多处民建地基勘察,在某高层建筑物地基勘察中,对这层古土壤经取样试验,获得了它的若干工程技术指标,较有代表性,特汇总整理成表1。从表1中数据可见:该古土壤层的上部、
In the Xianyang urban area, the second terrace of the Weihe River has a multi-layer structure. Among them, a layer of paleosol is the sixth soil from the surface downwards in sequence, which is Quaternary Pleistocene (Q_3 ~ 2) Aeolian alluvial formed by the action of the formation of maroon soil layer. The top of the layer has an elevation of 383 meters and a thickness of about 3 to 4 meters. It generally buries nearly 10 meters and is often located in the groundwater level fluctuation zone. My team had carried out many civil foundation surveys in the area. During the investigation of the foundation of a high-rise building, this ancient soil was sampled and tested to obtain some of its engineering and technical indicators. Into the table 1. As can be seen from the data in Table 1: The upper part of the paleosol layer,