| Abstract | 第4页 |
| Introduction | 第8-10页 |
| 1. BASIC INFORMATION | 第10-25页 |
| 1.1 Physico - geographical conditions of the work area | 第10页 |
| 1.2 The main provisions of the theory of orientation of underground workings | 第10-13页 |
| 1.3 Methods of tunnel construction and precision requirements | 第13-14页 |
| 1.4 Basic concepts of orientation via method of triangle connection | 第14-19页 |
| 1.5 Basic concepts of cross slit of counter workings. Breakdown of underground workings | 第19-22页 |
| 1.6 Engineering and geological surveys for the construction of tunnels | 第22-23页 |
| 1.7 Requirements for the performance of work | 第23-25页 |
| 2. ORIENTING OF AN UNDERGROUND GEODESIC BASE VIA THE METHOD OF TRIANGLE CONNECTION | 第25-38页 |
| 2.1 Basics of the orientation the method of connecting triangles | 第25-27页 |
| 2.2 Monitoring of measurement results | 第27-29页 |
| 2.3 Equalizing the connecting triangles | 第29-33页 |
| 2.4 Calculation of the direction angle of the line, orientation of underground polygonometry | 第33-34页 |
| 2.5 Calculation of the mean square error of orientation | 第34-37页 |
| 2.6 Evaluation and analysis of the performed calculations | 第37-38页 |
| 3. JUSTIFICATION OF CROSS SLIT SCHEME AND DEFINING ACCEPTABLE DISCREPANCIES OF FACES DURING THE CONSTRUCTION OF THE SUBWAY TUNNELS | 第38-56页 |
| 3.1 General provisions | 第38-39页 |
| 3.2 Analysis of the sources of errors of the cross-connection of counter-heading connections | 第39-43页 |
| 3.3. The estimated error of the fault in the plan (along the X axis) | 第43-51页 |
| 3.4 The height error for the expected height error (Z-axis) | 第51-55页 |
| 3.5 Evaluation and analysis of the performed calculations | 第55-56页 |
| 4. ANALYSIS OF THE CONDUCTED WORKS AND THE JUSTIFICATION OF THE APPLIED METHODOLOGY | 第56-61页 |
| 4.1 Assessment of effectiveness of application of underground geodesic base orientation via method of triangle connection in construction of city subway with counter – heading connections | 第56-57页 |
| 4.2 Analysis of the application of triangle connection method | 第57-59页 |
| 4.3 Analysis of the cross connection discrepancy of counter-heading connections when applying the geodetic base orientation via method of triangle connection | 第59-61页 |
| Conclusion | 第61-62页 |
| Acknowledgement | 第62-63页 |
| References | 第63-64页 |
