Limit analysis of supporting pressure in tunnels with regard to surface settlement
The proliferation of Hoek-Brown nonlinear failure criterion and upper bound theorem makes it possible to evaluate the stability of circular tunnels with an original curved collapsing mechanism. The arch effect of shallow circle tunnel is not taken into consideration so that the mechanical characteri...
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| Published in | Journal of Central South University Vol. 22; no. 1; pp. 303 - 309 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Heidelberg
Central South University
01.01.2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 2095-2899 2227-5223 |
| DOI | 10.1007/s11771-015-2522-x |
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| Abstract | The proliferation of Hoek-Brown nonlinear failure criterion and upper bound theorem makes it possible to evaluate the stability of circular tunnels with an original curved collapsing mechanism. The arch effect of shallow circle tunnel is not taken into consideration so that the mechanical characteristics can be easily described. Based on the mechanism, the upper bound solution of supporting pressure of tunnels under the condition of surface settlements and overloads on the ground surface is derived. The objective function is formed from virtual work equations under the variational principle, and solutions are presented by the optimum theory. Comparisons with previous works are made. The numerical results of the present method show great agreement with those of existing ones. With regard to the surface settlement and overloads, the influence of different rock parameters on the collapsing shape is analyzed. |
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| AbstractList | The proliferation of Hoek-Brown nonlinear failure criterion and upper bound theorem makes it possible to evaluate the stability of circular tunnels with an original curved collapsing mechanism. The arch effect of shallow circle tunnel is not taken into consideration so that the mechanical characteristics can be easily described. Based on the mechanism, the upper bound solution of supporting pressure of tunnels under the condition of surface settlements and overloads on the ground surface is derived. The objective function is formed from virtual work equations under the variational principle, and solutions are presented by the optimum theory. Comparisons with previous works are made. The numerical results of the present method show great agreement with those of existing ones. With regard to the surface settlement and overloads, the influence of different rock parameters on the collapsing shape is analyzed. |
| Author | Yang, Xiao-li Qin, Chang-bing |
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| CitedBy_id | crossref_primary_10_1007_s11771_015_2896_9 crossref_primary_10_1016_j_fuel_2021_120930 crossref_primary_10_1155_2021_5929116 crossref_primary_10_1007_s13369_018_3569_4 crossref_primary_10_1007_s11771_015_2618_3 crossref_primary_10_1007_s11771_016_3395_3 crossref_primary_10_1007_s11771_016_3331_6 crossref_primary_10_1007_s11771_016_0374_7 crossref_primary_10_1007_s11771_016_3116_y crossref_primary_10_1007_s11771_015_2979_7 crossref_primary_10_1016_j_measurement_2017_10_039 crossref_primary_10_1016_j_compgeo_2019_01_027 crossref_primary_10_1007_s12205_017_1398_8 |
| Cites_doi | 10.12989/gae.2012.4.1.067 10.1007/s11771-012-1406-6 10.1680/geot.2006.56.9.585 10.1016/j.tust.2010.01.004 10.1016/S1365-1609(97)80069-X 10.1007/s11771-011-0727-1 10.1016/0266-352X(91)90028-E 10.1061/(ASCE)1090-0241(2004)130:5(498) 10.1007/s11771-013-1851-x 10.1002/nag.962 10.1007/s11771-013-1739-9 10.1016/S0886-7798(01)00028-1 10.1016/j.ijsolstr.2009.09.028 10.1016/j.tust.2011.03.003 10.1007/s11771-013-1809-z 10.1680/geot.1980.30.4.397 10.1061/(ASCE)GT.1943-5606.0000457 10.1061/(ASCE)0733-9410(1994)120:7(1148) 10.1016/j.ijrmms.2008.09.014 10.1260/1369-4332.13.2.249 10.1007/s11771-012-1238-4 |
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| Keywords | circular tunnel surface settlement Hoek-Brown criterion collapse mechanism |
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| Title | Limit analysis of supporting pressure in tunnels with regard to surface settlement |
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