求翻译：如图1所示位于八一立交桥附近的××桩基础工程，属济南地区较为典型的山前冲洪积地层，桩径600mm，桩长18m左右，平均单桩施工时间超过24小时。是什么意思？

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As shown in Figure 1 is located near the overpass 81 × ×pile foundation works, Jinan area is a typical example of Yamasaki hedge Hongji stratigraphy, piles, pile diameter 600mm long, with an average around 18 m single-pile construction time more than 24 hours.

As shown in Figure 1 is located nearby 81 multi-level crossing bridges ×× the pile foundation project, is in front of a Jinan area more typical mountain to flush Hong to accumulate the stratum, pile diameter 600mm, about pile long 18m, the average single pile construction time surpasses for 24 hours

As shown in Figure 1 located near XX Army Day bridge pile foundation engineering, which is more typical in Jinan area in Piedmont red diluvium formation, pile 600mm diameter, length about 18m, mean time to pile more than 24 hours.

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