城市地下空间的大规模开发利用将产生大量弃土。

Underground space exploitation on a large scale in city will bring a mass of discarded soil.

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随着经济水平和城市化水平的不断提高，城市地下空间开发利用规模不断扩大。

The scale of development and utilization of urban underground space expands with the enhancement of urbanization and economy level in a city.

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在城市地下空间开发和高层建筑物的建设过程中，产生了大量深基坑工程，其规模和深度不断增加。

As the exploitation of underground space and the construction of high-rise in urban, a large number of deep foundation excavations have appeared lately. Its scale and depth increase constantly.

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