Deep foundation pit excavation combined supporting structure suitable for aeolian sand stratum

The utility model discloses a deep foundation pit excavation combined supporting structure suitable for an aeolian sand stratum, the upper half part of the deep foundation pit excavation combined supporting structure is an open cut side slope, and a plurality of side slope anchor rods are driven into the side slope; the lower half part is sequentially provided with a jet grouting pile and a cast-in-situ bored pile from the toe of the side slope to the inside to form a fender post, a foundation pit is arranged on the inner side of the fender post, a foundation jet grouting pile is arranged at the bottom of the foundation pit, foundation concrete is arranged on the foundation jet grouting pile, a tunnel lining is arranged in the foundation pit, and backfilling is conducted on the tunnel lining. The deep foundation pit excavation combined supporting structure is more reasonable in design, lower in cost and safer and more efficient in construction. 本实用新型公开了一种适用于风积沙地层的深基坑开挖组合支护结构，其上半部为明挖的边坡，边坡上打入若干边坡锚杆；下半部从边坡的坡脚位置