放坡开挖适用于地基土质较好、开挖深度不深，以及施工现场有足够放坡场所的工程。
Step-slope excavation is suitable for the project of which the foundation has better soil properties, lower excavation depth or enough site space for step-slope.
深圳地铁一期工程少年宫站开挖基坑围护结构采用1∶0.3的放坡结合土钉加预应力锚索联合支护体系。
Open-cut slopes of 1:0.3 gradient reinforced by soil nails and pre-stressed anchoring cables are adopted for the foundation pit of Shaoniangong station of phase 1 of Shenzhen Metro.
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