Pipe and plate connection piece

Abstract

The invention discloses a pipe and plate connection piece. The pipe and plate connection piece comprises a circular connector at the upper part, a cavity in the middle part and a slot located at the lower part of the cavity, wherein the slot is internally and convexly provided with a row of square opening pipes; and the pipe and plate connection piece is mainly used for coupling air conduction channels in a core plate of a water discharging plate with a branch pipe of a vacuum pipeline when the plastic water discharging plate with double water discharging channels is used in a vacuum pre-pressing fastening soft base method. The circular connector is connected with the branch pipe of the vacuum pipeline; the square opening pipes are connected with inner holes of the pumping and discharging plastic water discharging plate with the double water discharging channels; the circular connector is further provided with a check valve. According to the pipe and plate connection piece disclosed by the invention, the loss of a vacuum degree in a process of transmitting the vacuum degree from a vacuum pipeline system to the water discharging pipe is reduced, and the transmission efficiency is improved; the loss of vacuum pressure in a sand cushion layer is reduced, and the requirements of sealing are reduced; topsoil and soil below a surface layer can be directly used as a covering and sealing layer; and the pipe and plate connection piece disclosed by the invention is simple to manufacture and can be produced in a factory in a large batch.

Description

technical field [0001] The invention relates to a new type of tube-sheet connector, which belongs to the component in the field of construction engineering technology. Specifically, when using a pumping-type plastic drainage board with double drainage channels in the method of vacuum preloading to strengthen soft foundations, it is used to connect the drainage board and vacuum Tube-to-sheet connectors for pipe fitting branches. Background technique [0002] At present, the vacuum preloading treatment method adopted for the treatment of soft soil foundation is to lay a horizontal sand cushion on the soft soil foundation, drive drainage boards into the foundation, and connect the drainage boards to each other through the main pipe and filter pipe on the vacuum device. It is buried in the sand cushion to form a horizontal drainage channel, and then covered with an airtight sealing film. The vacuum device is used to pump air out of the foundation in the membrane, so that a pres...

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Problems solved by technology

[0003] However, there are still some problems in the traditional preloading method, mainly in: (1) If there is a foundation with good air permeability and water permeability on the surface, in order to prevent air leakage, the sealing film must be embedded in a deeper low-permeability foundation , or set up a partition mud wall in this layer of soil to the lower layer. This construction method is very uneconomical, and sometimes it can ensure sealing; (2) The vacuum pressure is affected by the sand cushion, filter pipe, and filter membrane Due to the damping effect, the power loss is very large. The actual measurement data show that the vacuum pressure outlet pressure is 96kPa. When it reaches the sand cushion through the main pipe and the filter pipe, the vacuum pressure drops to 80~90kPa. Only 50~60kPa, the loss rate is more than 30%

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