一种新型中空注浆排水锚固试验方法
By prefabricating radial grouting microchannels on the inner wall of the hollow anchor solid and filling them with simulated weak interlayer materials, combined with flow rate and turbidity monitoring, the problems of uneven grouting and insufficient data in existing experiments were solved, and accurate simulation and multi-dimensional data acquisition of weak interlayers were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI SHAANXI COAL HANCHENG MINING CO LTD
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hollow anchor grouting tests cannot accurately simulate the real engineering conditions of weak interlayers. The grouting channels are unevenly distributed, and it is impossible to obtain information on stress and seepage changes inside the weak interlayer simultaneously. The test data cannot fully reflect the grouting and bearing characteristics of the anchoring system under special working conditions.
Multiple radial grouting microchannels were prefabricated on the inner wall of the hollow anchor body and filled with simulated weak interlayer material. The flow rate and turbidity changes were monitored through grouting pipelines and drainage pipelines. Graded pull-out forces were applied to simultaneously collect data on the displacement and normal stress changes of the anchor body.
It achieved uniform penetration and compression of the grout into the simulated weak interlayer, monitored the grouting progress in real time, and collected multi-dimensional test data simultaneously to reflect the mechanical changes of the anchoring system under special working conditions.
Smart Images
Figure CN122171336B_ABST