地鐵區(qū)間隧道安全評估的層次_模糊綜合評判法_圖文

1、 422 UNDERGROUND SPACE Vol. 24 Keywords settlement of pile base ; creep ; Mersi model Hierarchy2Fuzzy Comprehensive Judgment for Safety Evaluation of Metro Running Tunnel WANG Yan et al ( 301 Abstract An overall analysis of factors influencing the safety system of metro running tunnel was carried ou

2、t ; a Hier2 archy2structure Model is set up . The relative weigh of influencing factors to the evaluated objects are gained by analyz2 ing the model . Then , a multi2hierarchy comprehensive evaluation on whole safety system by fuzzy comprehensive judg2 ment was carried out and a reasonable safety ev

3、aluation method for metro running tunnel is set up . Keywords metro running tunnel ; hierarchy analysis ; fuzzy comprehensive judgment ; safety evaluation WANG Yu2lan et al ( 306 Abstract In this paper , based on the property of the underground civil defense projects in need of reinforcement during

4、wartime , the bearing capacity of the underground civil defense projects reinforced with pillars is analyzed by fi2 nite element program SAP93. The numerical results show that the pillars can improve the bearing capacity of the con2 struction and make the underground civil defense projects in confor

5、mity with the requirements for defense in wartime. Keywords underground civil defense project ; finite element program ; pillars added ; bearing capacity ; requirements for defense A Study on Bearing Performance of Reinforced Underground Civil Defense Projects J IANG Y ong et al ( 312 Abstract The m

6、ethods to determine the earth pressure and calculate lining structure of rock tunnel are studied , es2 pecially for uneven pressure tunnels , by which the tunnel lining can be dynamically analyzed during the construction stages. The construction parameters can be adjusted in time to achieve the best

7、 economic results. The recommended methods in regulations are used to determine the starting parameters ; the back2analysis is carried out adopting the sim2 Dynamic Analysis and Relevant Study on the Rock Tunnel with Uneven Pressure plex method of changeable tolerance for analysis of load and stratu

8、m parameters and the back2analysis parameters are used to analyze the internal force of the tunnel lining for guiding the determination of lining parameters. Keywords uneven pressure tunnel ; load2structure method ; back2analysis method Computer Method for Inner Damage Monitoring during Excavation o

9、f Underground Space WANG Hua2ning et al ( 315 Abstract Dynamic damage monitoring of cracked rock mass during construction is very important for the safety. The fitting function back2analysis method for damage field is established by using multi2variant distributed parameter ap2 proximation theory ,

10、which can be used to identify and monitor the evolution of adjacent rock damage. The distributed parameter system is described by multiplying several orthogonal functions. The form of damage function distribution is determined by the distributed parameters through back2analysis of the measured displ

11、acement . The accuracy of back2 analysis affected by different fitting function term number is studied as well . The time2varying back2analysis , step and final2work back2analysis are compared and analyzed. Keywords damage monitoring ; fitting function ; mapping A Simplified Method for Calculation of the Horizontal Coefficient of Sub 2grade Reaction with the Flat Dilatometer Test TANG Shi2dong et al ( 322 Abstract The horizontal coefficient of sub2grade reaction Kh can be obtained from the flat dilatometer test (DMT . However , there are many influencing factors for horizonta