A simulation device for backfill grouting experiment of shield tunnel and its application method
A simulation device and shield tunneling technology, applied in the field of simulation devices, can solve problems such as the inability to simulate the backfill grouting process, and achieve high efficiency
Active Publication Date: 2015-11-18
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0004] In order to solve the technical problem that the shield tunneling simulation experiment system in the prior art cannot simulate the backfill grouting process, the present invention provides a simulation device for the backfill grouting experiment of the shield tunnel and its use method. The simulation device for filling and grouting experiments can well simulate the backfilling grouting process of shield tunnels. Through testing and analyzing the grout shell after grouting, the grout parameters and grouting process suitable for the formation and shield attitude can be obtained.
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[0026] The simulation device for the backfill grouting experiment of the shield tunnel according to the present invention will be described in detail below in conjunction with the accompanying drawings. A simulation device for back filling grouting experiment of a shield tunnel, comprising a cylindrical shell 1, a cylindrical shield shell 2 sleeved in the shell 1, a cylindrical inner tube 3 sleeved in the shield shell 2, and the shell 1 One end of the shield shell 2 and one end of the inner tube 3 are sealed with the end cover 6, the other end of the shell 1 is provided with a ring-shaped disc cover 72, the shield shell 2 and the inner tube 3 are sleeved in the disc cover 72, the other end of the shell 1 It is sealed with the shield shell 2 through the disc cover 72, one end of the shield shell 2 is sealed with the inner tube 3, and a closed annular storage chamber 4 for filling soil samples is formed between the outer shell 1 and the shield shell 2, and the shield shell 2 One...
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The present invention discloses a simulation apparatus of shield tunnel backfill grouting experiment, and a use method thereof. The simulation apparatus comprises a housing (1), a cylindrical shield housing (2) arranged inside the housing (1) in a sleeve manner, and an inner pipe (3) arranged inside the shield housing (2) in a sleeve manner, wherein the shield housing (2) leaves the sealed annular space (5) between a storage chamber (4) and the inner pipe (3) when the shield housing (2) moves toward the other end of the shield housing along the axis of the shield housing, and mortar can be filled into the annular space (5) through a grouting port (22). According to the present invention, the simulation apparatus of the shield tunnel backfill grouting experiment can well simulate the backfill grouting process of the shield tunnel, such that the slurry parameters and the grouting process for the stratum and under the shield attitude can be obtained through test analysis of the grouted concrete slurry shell so as to provide guidance for ground surface subsidence, segment leakage and deformation, and other problems easily produced during the shield construction process; and the experiment method has characteristics of simpleness, convenience and high efficiency.
Description
technical field [0001] The invention relates to the technical field of shield tunnel experiment simulation, in particular to a simulation device used in a shield tunnel backfill grouting experiment and a method for using the device. Background technique [0002] In order to ensure the safety and efficiency of shield tunnel construction, people usually use experimental simulators to simulate the construction process of shield tunnels, such as Chinese patent CN102221474A, published on October 19, 2011, which discloses "A Mud-Water Balanced Shield This system can simulate the geological environment in the target formation and provide convenience for guiding the construction of shield tunnels, but this system cannot simulate the backfill grouting process of shield tunnels, let alone the concrete formed after grouting. Shells are tested. [0003] During the construction of the shield tunnel, the backfill grouting parameters and processes will be different under different strata ...
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IPC IPC(8): G01N33/38
Inventor 刘广仁李胜新郅永强常喜平张磊樊继欣张志鹏蔡耀民王丽娟
Owner BC P INC CHINA NAT PETROLEUM CORP