Foundation pit support structure of high-pressure jet grouting water stop pile for preventing pile hole collapse

The utility model relates to the technical field of high-pressure jet grouting piles, in particular to a foundation pit support structure of a high-pressure jet grouting water stop pile, which is used for preventing a pile hole from collapsing and comprises a foundation pit, a pit wall is arranged on the inner side of the foundation pit, and the high-pressure jet grouting pile is arranged between the foundation pit and the pit wall. The corrugated pipe can be controlled to be stretched by a specified length by adjusting the nut on the screw rod, so that the device is suitable for high-pressure jet grouting piles with different depths, the application range of the device is expanded, the stability of an enclosure structure is enhanced, in addition, the stretching mechanism is arranged in the corrugated pipe, further machining of the high-pressure jet grouting piles is effectively avoided, and the machining efficiency is improved. Therefore, the foundation pit structure is damaged, and the stability of the foun