| The multi-plate soil anchor is formed by the expansion of the airbag to form a dimple on the surface of the borehole wall,and the cement mortar is filled to form a multi-plate soil anchor.The difference between the soil anchor and the existing soil anchor is:along the surface of the existing soil anchor cylinder The disc body is provided at regular intervals.In order to study the uplift characteristics of the soil anchor,the numerical simulation analysis of its pull-out force,displacement,side friction resistance and load transfer law were carried out.(1)Introduced a disk-forming tool and a multi-plate anchor prepared with a disk-making tool.(2)According to the engineering experience and relevant theoretical knowledge,the horizontal bearing capacity,displacement,lateral friction,axial force and other bearing characteristics and soil anchor load transfer law of horizontally embedded multi-soil anchors under horizontal drawing loads are analyzed.(3)Using FLAC3D numerical simulation to analyze the comparison of drawing force,displacement,side friction and axial force with common soil anchors.(4)The influence of the diameter of the anchor disk,the number of anchor plates and the spacing of the anchor plates on the horizontal bearing capacity of multi-plate soil anchors was studied by using FLAC3D numerical analysis software.A total of 25 sets of contrast models were designed and based on multi-plate soil anchor displacement and ultimate bearing capacity.The bearing capacity ratio is optimal for the disk diameter and the disk spacing.(5)Under the optimal disk diameter and spacing conditions,the effects of multi-plate soil anchors on soil around soil anchors under horizontal pulling loads are studied based on displacement cloud map and stress cloud map.(6)The effects of multi-soil anchors on different bearing depths and lengths were studied.A total of 10 models were set up and the changes were obtained according to the Q-s curve.Figure[44]table[10]reference[62]. |
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