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The shield tunneling Is currently widely used method of tunnel construction, mechanical, electronic, hydraulic, material control, municipal and other disciplines in one large system engineering. Of shield construction of tunnel, safe, reliable, high efficiency construction time to complete the tunnel construction can save a lot of manpower and material resources, and a very small impact on road facilities. Tunnel construction by shield method, not only works of high quality, rugged construction, and long working life, easy maintenance. Nevertheless, the tunnel construction still belong to large, complex projects, investment and time-consuming. Presented a huge challenge to shield equipment design and manufacturing, and how to design a set of reasonable Shield equipment, is also a very complicated project. If designed well, the program is a reasonable choice, not only can reduce the manufacturing cost of the device, but also can improve the efficiency of the tunnel construction. Currently, there are many research institutes, companies and manufacturers engaged in or shield equipment R \u0026 D and manufacturing investment, the ultimate goal is to create a set of shield equipment with independent intellectual property rights. However, the uneven level of this type of equipment, the only part of the equipment to achieve localization, the main idea is still emulate foreign standards, have not been able to form a complete set of design concepts and methods. The topic where the National Key Basic Research and Development Program It is in this context that, in the scheme of funding, this project is carried out for the following scientific issues in the shield tunneling study: 1. Study based on the whole station instrument and electronic laser target position and attitude measurement system, which gives information on the calculation method of the position and orientation of the shield machine. In conjunction with the characteristics of the system, analysis of the limitations of the system, the demand for the technology based on these limitations. Proposed site planning concepts and methods. Binding site planning requirements, the introduction of the the set covering mathematical model to describe the process. Abstract first total station laser target measuring three constraints: range constraints, the angle of incidence constraints and visibility constraints. Among them, the use of GPU technology the visibility constraints visual cone calculated acceleration. Then, based on the model of three constraints to establish a 0-1 testability matrix to describe the testability relationship between the total station with laser target, further site planning problem into a set covering problem, and get through the greedy algorithm approximate optimal solution. After validating the planning results in line with the experience in the engineering guidelines. 3. Carry out the universal segment assembly method for forming the tunnel using the tunnel construction. First analysis of the the universal segment geometric structure, then explain its advantages relative to the traditional segment assembled. Next, the adjacent universal segments assembled in the ring between the geometric positional relationship, using the coordinate transformation theory, given the method of calculation of the relative positional relationship between the adjacent rings. Then, the analysis the assembled segment of the axis of the tunnel design fitting principle, the local calculation method to be extended to the entire tunnel. Finally, the introduction of the assembly method to the axis of the corrective strategy. Example to verify the feasibility of the method. Thesis work, as basic research will achieve with independent intellectual property rights, and in line with China's basic national conditions of shield design and manufacture of equipment to do a certain foreshadowing.
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