Linkage Between Pullout Force And Anchor Disk Distance Distribution Using Anchors

Linkage between pullout force and distance distribution of anchor disk with anchors

Geotechnical anchoring skill is an important part in the field of geotechnical engineering, and it has a wide range of applications in the fields of hydraulic construction, towering structure, underground engineering, anti-slip engineering and slope engineering. However, the traditional mining anchor pullout force is mostly provided by its own friction force, this paper mainly discusses the disk structure-based mining anchors, discusses its force mechanism and its related calculation methods.

First, through the model test method, discuss the damage form of disk type mining anchor, discuss the buried depth of the anchor disk, disk diameter size and the distribution of the distance of the anchor disk under the given soil conditions on the influence of the rules of the pullout force of the mining anchor. Analyze the pullout damage mechanism of disk type mining anchor; determine the damage form of disk type mining anchor with single disk and multi-disk under different working conditions according to the test results.

Second, through the integration of the layered solution, the displacement harmony equation and the balance equation of the pullout force between the mining anchor and the soil body in the semi-infinite space soil body within the range of elastic deformation are discussed. Discuss the relative displacement relationship between mining anchors and soil under the effect of loading; study the pullout resistance mechanism of group anchors and the mutual influence characteristics between each disk-type mining anchors, as well as the influence characteristics of different numbers of mining anchors and different distances of anchor disks on the distribution characteristics of the lateral friction resistance of a single mining anchor in the effect of group anchors.

Third, the relationship between pullout force and displacement in the state of disk-type mining anchor is discussed, and the calculation method of pullout force of disk-type mining anchor is deduced by applying slider equilibrium theory, and the results are basically consistent with the experimental verification.

Fourth, the application of finite element numerical imitation method, discussing in the loading effect of disk type mining anchor force characteristics, deformation rules and its effect with the soil between the characteristics and damage forms, the results and test results are basically consistent.