Abstract：Soil-nailed wall used to support the slope of deep foundation pit is an economic method. Due to the supporting system mainly relying on the soil stability and the soil intensity，it will limit the depth of the supported slope. For increasing the supported depth of slope，the composite soil-nailed wall to support slope is considered. But what kind of construction used to soil-nailed wall supporting system lies on the stress state of the slope. To understand that the slope stress state is the premise of slope supporting design and construction，the paper gives two cases of deep foundation pit slope supported by composite soil-nail wall，and provides the valuable cases to the designers and the builders when they consider soil-nail wall to support deep foundation pit slope. Through the analysis of these cases，much attention should be paid to the stability of slope toe，improving the overall stability of slope with soil anchors，when composite soil-nail wall is used to support the slope of deep foundation pit.
