Membrane outlet connection device for vacuum pump and vacuum membrane drainage pipeline
A technology of drainage pipes and connecting devices, which is applied in the field of membrane outlet connecting devices to achieve the effect of protecting vacuum membranes
Active Publication Date: 2015-09-02
SHANGHAI FOUND ENG GRP
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Problems solved by technology
[0007] The present invention aims to solve the technical problem of sealing the pipeline passing through the vacuum membrane in the vacuum preloading process, and provides a membrane outlet connection device for the vacuum pump and the vacuum membrane drainage pipeline
Method used
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Embodiment Construction
[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0018] Such as figure 1 , Shown in 2, the present invention is used for the film connection device of vacuum pump and vacuum film drainage pipeline, comprises vacuum film and geotextile 1, vacuum film top connection pipe 2 and vacuum film bottom connection pipe 3 etc.
[0019] The vacuum membrane and geotextile 1 are placed on the upper and lower surfaces of the vacuum membrane upper connecting pipe 2 and the vacuum membrane lower connecting pipe 3 respectively, and the connections between the vacuum membrane upper connecting pipe 2 and the vacuum membrane lower connecting pipe 3 and the vacuum membrane and geotextile 1 are all welded There are flanges 4, and the flanges 4 are connected and fixed with fasteners 5.
[0020] The upper connecting pipe 2 of the vacuum membrane is a vertical iron pipe with a flange; the lower connecting pipe 3 of the vacuum...
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The invention relates to a membrane-through connecting device for a vacuum pump and a vacuum membrane drainage pipeline. The membrane-through connecting device for the vacuum pump and the vacuum membrane drainage pipeline comprises a vacuum membrane, a geotextile, a vacuum membrane upper connecting pipe and a vacuum membrane lower connecting pipe, wherein the vacuum membrane and the geotextile are placed between the vacuum membrane upper connecting pipe and the vacuum membrane lower connecting pipe, flanges are welded on joints where the vacuum membrane upper connecting pipe and the vacuum membrane lower connecting pipe are connected with the vacuum membrane and the geotextile, and the vacuum membrane upper connecting pipe and the vacuum membrane lower connecting pipe are mutually fixedly connected with the vacuum membrane and the geotextile by using fastening components through the flanges. Compared with the prior art, the vacuum membrane upper connecting pipe and the vacuum membrane lower connecting pipe are connected with the vacuum membrane and the geotextile without penetrating through the vacuum membrane directly, but flange plates are used for achieving connection so as to achieve the purpose of protecting the vacuum membrane.
Description
technical field [0001] The invention relates to a vacuum preloading vacuum pump used for soil drainage and consolidation, in particular to a membrane outlet connection device when the diameter of the vacuum pump pipe is different from that of the horizontal drainage pipeline under the vacuum membrane. Background technique [0002] The preloading method is divided into surcharge preloading and vacuum preloading. It has been applied and developed in my country for decades. Its design theory and construction technology are relatively mature, and its reinforcement effect is obvious and its economic benefits are remarkable. The main mechanism of vacuum preloading is: use a vacuum pump to pump air to maintain a high degree of vacuum in the drainage system, use atmospheric pressure as a preload to increase the effective stress of the foundation, so as to facilitate the drainage and consolidation of the soil and increase the strength of the soil , to achieve the purpose of reinforce...
Claims
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IPC IPC(8): E02D3/10
Inventor 邓治纲游才华李伟董天林
Owner SHANGHAI FOUND ENG GRP