Combined water draining device and its connecting method

Abstract

The combined water draining device includes one spiral spring tube and one water penetrating support board embedded each other as well as water permeable cloth to cover the embedded parts. The connecting method includes extending one end of the spiral spring tube in one water draining device, extending one end of the water penetrating support board in one other water draining device and making the spiral spring inserted into the slot or hole of the extended water penetrating support board. The combined water draining device of the present invention has high water penetrating rate, high water drainage efficiency, and convenient joint, and may be used widely in various water draining applications.

Description

1) Technical field [0001] The invention relates to a drainage material for removing seepage, in particular to a combined drainage body and a connection method for underground seepage drainage and internal seepage drainage of structures. Two), background technology [0002] At present, in civil and agricultural projects, it is often necessary to drain the interior of soil or structures, such as lowering the groundwater level, intercepting and draining groundwater, draining the back of retaining walls, and abutments. The commonly used drainage methods are as follows: one is to wrap gravel in geotextile, and set a permeable pipe in the gravel, and the permeable pipe can be cement concrete pipe with holes, hard plastic pipe with holes or soft permeable pipe , its shortcoming is: the permeable capacity of above-mentioned permeable pipes is all insufficient, and most of the water in the whole blind ditch is in seepage state, so its drainage efficiency is not high, and construction...

AI Technical Summary

Problems solved by technology

The commonly used drainage methods are as follows: one is to wrap gravel in geotextile, and set a permeable pipe in the gravel, and the permeable pipe can be cement concrete pipe with holes, hard plastic pipe with holes or soft permeable pipe , its disadvantages are: the water penetration of the above-mentioned permeable pipes is insufficient, and most of the water in the entire blind ditch is in a seepage state, so its drainage efficiency is not high, and the construction is more troublesome, the shape is huge, and its use is limited in many occasions

The second is to use a soft permeable pipe alone to remove groundwater. The soft permeable pipe is a permeable pipe covered with a permeable layer outside the coil spring, such as figure 1 As shown, the soft permeable pipe has the following disadvantages: 1. Poor mechanical performance: no matter whether the soft permeable pipe is buried in gravel or buried in the soil, it cannot withstand lateral force and is easily compacted by machinery. Overwhelmed and flattened, thus losing the drainage effect; 2. The water permeability efficiency is not high: the soft permeable pipe is set with closely arranged warp and weft for strengthening, which greatly reduces the water permeability efficiency; 3. The drainage efficiency is low: the "soft permeable pipe" of the soft permeable pipe "It has always been considered as its greatest advantage, but in fact it is its fatal weakness in many cases: for example, the most common soft permeable pipe is buried in the soil for horizontal drainage. It has always been believed that the soft permeable pipe can adapt to the soil The unevenness of the terrain is its advantage, but just because the soft permeable pipe can adapt to the unevenness of the terrain, the permeable pipe itself becomes uneven, which leads to the phenomenon of water infiltration, that is, the water seepage from the soil into the permeable pipe When the water is drained in the pipe, it seeps back into the soil in the recess, which greatly reduces the drainage efficiency.

4. The connection is not good: either the connection is not firm, or the connection is easy to block

[0003] The Chinese invention patent specification with the notification number CN2238852Y also discloses an elastic-plastic soft permeable pipe. The permeable pipe includes a pipe wall support body and a water-permeable filter layer. The water-permeable filter layer is composed of two layers of soft fabrics inside and outside. Its disadvantages are as mentioned above: low water permeability and drainage efficiency, and poor load-bearing performance, and the connection is not firm and easy to block

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