Open AccessComparative In-situ Test and Numerical Simulation on Underreamed Ground Anchor
Author(s) -
Gang Guo,
Zizhou Xue,
Xiaochen Hu,
Guang Zhong,
Liu Zhong
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/3/032006
Subject(s) - geotextile , engineering , geotechnical engineering , deformation (meteorology) , structural engineering , computer simulation , bearing capacity , test (biology) , geology , simulation , paleontology , oceanography
Underreamed ground anchor is an anchorage technology of safety and economy. Engineering companies worldwide developed various types of underreamed anchors with partially enlarged anchor body. In recent years, a kind of cylindrical underreamed ground anchor with geotextile bag is applied in China. Because of its corrosion resistant performance and high construction guarantee rate, the underreamed ground anchor with geotextile bag is widely recognized. In order to study its mechanical performance, a comparative in-situ test between the underreamed anchor and normal shaft anchor is held in China. Through the test, the advantages of bearing capacity and deformation performance are analyzed. Based on the test, the numerical model of cylindrical underreamed anchor is established, and the relationship between its capacity and the response of the surrounding soil is researched.