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| SELECTION OF STONEWORK EXCAVATING SCHEMES FOR ELECTRIFIED DOUBLE-TRACK RAILWAYS |
| Qing Guangquan |
| Southwest Research Institute,China Academy of Railway Sciences,Chengdu 610031 |
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Abstract As excavating stoneworks under the condition of the electrified railway with dou?ble tracks side by side,the key technical objectives are： both the proper operation and safety of the existing line should be guaranteed absolutely，and the requirements on the speed of construction should be fulfilled also. The paper sums up the various feasible excavating schemes and introduces their technical essentials，effects and application scopes. These schemes can be selected under different conditions.
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Received: 17 February 1995
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1995, Vol. 12 
