公开(公告)号：US11891771B1

公开(公告)日：2024-02-06

申请号：US18458262

申请日：2023-08-30

Applicant: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS

Inventor： Yapeng Cao ,  Guoyu Li ,  Wei Ma ,  Zhixiang Chen ,  Buxiang Wang ,  Dun Chen

IPC: E02D31/14 ,  E02D27/34

CPC classification number: E02D31/14 ,  E02D27/34 ,  E02D2200/1685 ,  E02D2600/40

Abstract: The present disclosure provides a device for preventing frost heaving and thawing settlement. The device includes a positioning cylinder, an upper cover, an anti-thawing settlement rod configured to prevent the thawing settlement, and an anti-frost heaving rod configured to prevent the frost heaving. The upper cover is sealingly assembled on a top of the positioning cylinder. A bottom of the positioning cylinder is provided with the anti-frost heaving rod. An upper portion of the positioning cylinder is provided with the anti-thawing settlement rod. The anti-frost heaving rod is provided upwards, and a bottom of the anti-frost heaving rod is rotatably provided on a mounting base of the anti-frost heaving rod through a first connecting screw rod. The anti-thawing settlement rod is provided downwards, and a top of the anti-thawing settlement rod is rotatably provided on a mounting base of the anti-thawing settlement rod through a second connecting screw rod.