Combined type foundation pit inclined pile structure for supporting foundation pit

The utility model discloses a combined type foundation pit inclined pile structure used for supporting a foundation pit, and aims to provide the combined type foundation pit inclined pile structure used for supporting the foundation pit, which can complete construction of inclined piles before excavation of the foundation pit so as to complete excavation operation of the foundation pit at one time under the condition of ensuring stable supporting of the foundation pit. The structure comprises cement-soil mixing piles, the cement-soil mixing piles are located in a foundation pit soil layer on the inner side of a foundation pit fender post, the cement-soil mixing piles are obliquely distributed, and the lower ends of the cement-soil mixing piles incline towards the middle of a foundation pit; the high-pressure jet grouting pile sections are arranged at one or more positions of the cement-soil mixing piles, the high-pressure jet grouting pile sections are located below the bottom elevation of the foundation pit,