Test mold device for pouring hollow cylindrical mortar test piece

Abstract

The invention discloses a test mold device for pouring a hollow cylindrical mortar test piece. The test mode device comprises a test mold base, an outer test mold cover and an inner test mold liner. The test mode base is a circular iron plate engraved with a plurality of concentric circular-ring-shaped grooves. The outer test mold cover consists of a bottom outer cover, a standard layer outer cover, and a top outer cover. The inner test mold liner is a long hollow cylinder. The outer test mold cover is assembled; the assembled outer test mold cover and the inner test mold liner are arranged onthe test mold base to form hollow cylindrical pouring space. According to the invention, hollow cylindrical mortar test pieces with different specifications are poured by adjusting the dimensions ofthe outer test mold cover and the inner test mold liner. An effective test data support can be provided for water and earth pressure study of the underwater tunnel and the assistance is provided for the theoretical analysis.

Description

technical field [0001] The invention belongs to the construction field and relates to a mold testing device for pouring hollow cylindrical mortar test pieces, which can be used for pouring mortar test pieces with different thicknesses and heights of the test pieces. Background technique [0002] Some scholars pointed out that in the next ten years, my country will build 20,000 kilometers of various types of tunnels, including road tunnels, high-speed rail tunnels, water conservancy tunnels, and urban subways. In order to reduce the water pressure on the tunnel, seepage channels are often reserved, coupled with the assembly joints of the lining tunnel and the lining cracks caused by long-term operation, all of which make the tunnel lining have a certain degree of permeability. In scientific research, the tunnel lining is often simplified as Equivalent permeable layer, but it is difficult to realize experimentally, so the research in this area mostly focuses on analytical rese...

AI Technical Summary

Problems solved by technology

In order to reduce the water pressure on the tunnel, seepage channels are often reserved, coupled with the assembly joints of the lining tunnel and the lining cracks caused by long-term operation, all of which make the tunnel lining have a certain degree of permeability. In scientific research, the tunnel lining is often simplified as Equivalent permeable layer, but it is difficult to realize experimentally, so the research in this area mostly focuses on analytical research and numerical research

Without the support of experimental data, theoretical research will be greatly reduced. Therefore, in order to overcome the shortcomings of existing research methods and supplement experimental data in related research fields, the present invention has developed a mold testing device for pouring hollow cylindrical mortar specimens.

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