Stability Mechanism and Repair Method of U-Shaped Steel Reverse Arch Support in Soft Floor Roadway

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Elastic modulus (GPa)</td><td class="align_center">Cohesion of cement paste on unit length (kN·m<sup>−1</sup>)</td><td class="align_center">Shear stiffness of cement paste on unit length (MN·m<sup>−2</sup>)</td><td class="align_center">Outer perimeter of cement paste (mm)</td><td class="align_center">Cross-sectional area (mm<sup>2</sup>)</td><td class="align_center">Prestress (kN)</td><td class="align_center">Tensile strength (MPa)</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">205</td><td class="align_center">266</td><td class="align_center">95000</td><td class="align_center">61.8</td><td class="align_center">314</td><td class="align_center">60</td><td class="align_center">490</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Parameters for bolt simulation.</div>

Advances in Civil Engineering

tab3

Table 3

Table 3: Stability Mechanism and Repair Method of U-Shaped Steel Reverse Arch Support in Soft Floor Roadway 