| Related citation: | Wen-Wu Liu,Chang-Sheng Hu,Nian-Li Lu,Shuang-Gui Yin,Ze-Yu Du.Study of the Hole Wall Soil’s Capacity by the Action of the Bearing Device of Rodless Drilling Rig[J].Journal of Harbin Institute Of Technology(New Series),2013,20(1):118-122.DOI:10.11916/j.issn.1005-9113.2013.01.022. |
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| Author Name | Affiliation | | Wen-Wu Liu | School of Electro-mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China | | Chang-Sheng Hu | School of Electro-mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China | | Nian-Li Lu | School of Electro-mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China | | Shuang-Gui Yin | School of Electro-mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China | | Ze-Yu Du | School of Electro-mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: |
| In order to ensure the bearing device of rodless drilling rig to press stably against the hole wall, it has to analyze the contact between the soil pore wall and the bearing device to study whether the soil pore will shear failure. This paper uses the method to calculate the additional stress of any point in soil mechanics to get the three-dimensional stress state of any point of the soil pore under the support plate, and use the numerical analysis method to calculate the shear stress and its relative intensity. Under the circumstances of maximum torque and maximum pressure, ABAQUS is used to make a finite element analysis of the capacity of the soil pore. The results of numerical analysis and FEA indicate that in the condition of the support plate will not deform; the contact area between the soil pore and the support plate is rectangular; in the force process, the soil under the ends of the support plate have the trend of yield, while it meets the condition of Mohr-Coulomb not to yield generally. |
| Key words: rodless drilling rig bearing device the soil pore capacity |
| DOI：10.11916/j.issn.1005-9113.2013.01.022 |
| Clc Number:TU67 |
| Fund: |
