Underwater Tunnel Curtain Grouting And No Studio Bassoon Studio Construction Technology

The security in underwater tunnel construction is particularly important, advanced curtain grouting and large-pipe-shed advanced support without studio are effective means of rock reinforcement along with the sharp contrast to the lag of these researches, however, the principles in the theory are quite limited. The lack of scientific, rational and effective guidance correspond to tunnel excavating, curtain grouting and effects the quality of grouting and engineering, furthermore, a larger wasting of human and material resources. To these problems, there are still a great deal of works and many problems need to be started and solved.Basing on Changsha Xiangjiang Road Liuyang River tunnel, This dissertation reseaches Curtain Grouting technology theory and concrete practice,the main contents include:1,The grouting methods are reseached and the corresponding grouting program, parameters, process, mechanical equipment,grouting tests and evaluation are mentioned.2,The technology of the integration of drilling and grouting is studied to ensure the grouting quality and provides new processing methods and techniques for the similar strata's reinforcement.3,The new technology that "fiberglass bolt" is facilitied to ensure stability of tunnel face is researched.4,The technology of large-pipe-shed advanced support without studio is proposed, Machinery and equipment of large-pipe-shed and construction technology are researched and they are tested and applied in the field. These measures are reseached to avoid security risks, to improve the quality of large-pipe-shed construction, to reduce construction costs and to speed up the construction progress.