Test device for simulating active soil pressure of retaining wall

By combining an electromagnetic loading device with a valve-controlled drainage system, the problems of inaccurate loading methods and difficulty in controlling drainage conditions in retaining wall earth pressure testing devices were solved, achieving high-precision earth pressure measurement and analysis, and improving the accuracy of test results and their engineering guidance value.

CN224303418UActive Publication Date: 2026-05-29NANJING INST OF RAILWAY TECH
0 Cites 0 Cited by

Patent Information

Application Number
CN202520983543.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-05-29
Estimated Expiration
2035-05-19

AI Technical Summary

Technical Problem

Existing earth pressure testing equipment for retaining walls suffers from insufficient precision in loading methods, difficulty in flexibly controlling drainage conditions, and difficulty in achieving high precision in displacement measurement, which limits the accuracy of test results and their engineering guidance value.

Method used

The drainage system, which employs an electromagnetic loading device and valve control, combined with the design of upper and lower main beams and movable partitions, enables precise load control and flexible drainage simulation. Soil displacement is measured using threaded steel pipes and displacement measuring devices.

Benefits of technology

It improves the accuracy and reliability of test results, can realistically reproduce complex working conditions in engineering, provides more accurate earth pressure distribution analysis, and supports the safety and economy of retaining wall design.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

A test device for simulating the active soil pressure of a retaining wall comprises a main frame structure, a loading device and a rainfall device, the main frame structure comprises an upper side main beam, a lower base, an immovable partition plate and a movable partition plate, the upper side main beam is provided with a watering device, and the watering device is connected with a sprinkler head; drainage channels are arranged in the immovable partition plate and the movable partition plate from top to bottom and used for simulating the soil extrusion drainage process, a filter element is arranged on one side of the upper portion of each drainage channel to prevent soil loss, a lower base is connected to one side of the lower portion of each drainage channel for drainage, and resin glass is installed on the lower base. A plurality of loading devices are uniformly arranged on the fixed partition plate and the movable partition plate in a face-to-face manner, a threaded steel pipe is arranged below the movable partition plate and is used for recovering the position after an experiment is finished, and a displacement measuring device is arranged below the threaded steel pipe and is used for measuring the advancing distance of the movable partition plate. By adopting the electromagnetic loading device, the load control is more accurate and can be adjusted in real time, and various conditions in actual engineering can be better simulated through the drainage system controlled by the valve.
Need to check novelty before this filing date? Find Prior Art