Bozhou soft style transparent Water pipe Brief analysis of the industry
During construction, Geomembrane above Geotextile Natural lapping shall be adopted, and the geotextile on the upper layer of the geomembrane shall be welded or hot air welded. Hot air welding is the preferred connection method of filament geotextile, that is, the hot air gun is used to heat the connection of two pieces of cloth at an instant high temperature, so that their parts reach the melting state, and immediately use a certain external force to make them firmly bonded together. In the case that thermal bonding cannot be carried out in wet (rainy and snowy) weather, the geotextile shall adopt another method - suture connection method, that is, special sewing machine shall be used for double suture connection, and chemical ultraviolet resistant suture shall be used. Smaller width when sewing 10cm The smaller width is 20cm The smaller width is 20cm 。 For sewing, the suture with the same quality as the geotextile shall be used, and the suture shall be made of materials with stronger resistance to chemical damage and ultraviolet light. Geomembrane shall be laid after the geotextile is laid and approved by the site supervision engineer. The geotextile on the geomembrane is paved as above after the geomembrane is approved by Party A and the Supervisor. The two layers of geotextile above and below the membrane shall be embedded in the anchorage groove together with the geomembrane at the position with anchorage groove. Basic requirements for geotextile laying, a The joint must intersect the slope line; The distance between the horizontal joint and the toe of slope shall be greater than 1.5m 。 b On the slope, anchor one end of the geotextile, and then lay down the coiled material on the slope to ensure that the geotextile remains taut. c All geotextiles must be pressed with sandbags, which will be used during laying and reserved until the upper layer of materials is laid.
Brief Introduction of Bozhou Soft Pervious Pipe
Soft permeable pipe is also called soft permeable pipe, permeable pipe Hose , drain hose Spring Permeable pipes, reinforced flexible permeable pipes, flexible drainage pipes, etc., mainly include 50mm 、 80mm 、 100mm 、 150mm 、 200mm 、 250mm 、 300mm These categories. Flexible permeable pipe one thousand nine hundred and ninety-six Since it was first used in Jinduogang Golf Course in Dongguan, Guangdong Province, mainland China in, it has been widely used in engineering measures such as drainage of seepage water, reduction and control of groundwater level, reinforcement of soft soil and prevention of soil collapse. It creatively uses the principle of capillary permeation to make the whole body permeate water, making the permeation, filtration and drainage fast and effective. The utility model has the advantages of large permeable area, high compressive strength, low laying requirements, simple installation and connection, light and durable structure, low comprehensive cost, etc. It overcomes many disadvantages of other drainage pipes “ capillary ” Phenomena and “ siphon ” It integrates water absorption, water permeability and drainage, and has the pressure resistance, water permeability and anti filtration functions required by engineering design. It does not break due to geological and geographical temperature changes, can achieve the effect of discharging clean water, and will not cause secondary pollution to the environment. It is a new environmental protection product.
Construction case of flexible permeable pipe
Reason for waterproof design : Some designers do not know enough about the importance of waterproof, think that underground leakage does not affect the safety of the structure, and do not pay enough attention to the selection of materials and design methods. Therefore, the waterproof design scheme is not carefully studied in combination with the structural characteristics, resulting in unreasonable waterproof design. Leakage caused by waterproof design concept: at present, the service life of underground works is one hundred The service life of waterproof materials can not meet this requirement, so the maintainability and easy replacement of drainage system should be considered in the waterproof design of underground works. Leakage caused by economic problems of waterproof design: although waterproof works account for a small proportion of the total project cost in underground works, designers often consider the cost and still choose cheap materials, which is also the cause of waterproof leakage. According to the research, it is found that the failure of the waterproof system due to the variation of the waterproof material material accounts for a large proportion, which is caused by the weakening of the waterproof material performance due to the groundwater environment and microbial erosion, and the inherent weakness of the existing waterproof material material gradually loses the waterproof function of the Bozhou flexible permeable pipe with the harsh environment and use time. For example, the waterproofing membrane of a * * * tunnel has deteriorated and aged during maintenance. To sum up, the main reasons for these situations are as follows: a The low-quality concrete additives contain high concentration of alkaline components and salt substances that are not easy to decompose, resulting in the softening of the concrete structure, and the precipitated substances have a corrosive effect on the waterproof membrane ; b The alternation of freezing and thawing causes the structural variation of waterproof materials ; c Microbial erosion, variation of bonding materials ; d Corrosion of materials by acid, alkali and salt ions with different concentrations in groundwater ; e The instability of waterproof material structure leads to the variation of material structure preparation.
Application scope of Bozhou flexible permeable pipe
one , highway, * * * subgrade and shoulder drainage
two , playground, plaza and park green space drainage
three , tunnel, underground building, roof garden drainage
four Drainage of coal yard, garbage landfill and compost yard
five Landslide land, slope protection and drainage treatment
six Catchment system of suction well, drainage well and drainage ditch
seven Drainage treatment of retaining wall and abutment back
eight Drainage of land preparation works and water and soil conservation works
nine Drainage system of low-lying tidal wetland and saline alkali land
ten Underground irrigation and drainage system for agriculture and horticulture
eleven Drainage treatment of mine tailings dam and ash dam of thermal power plant
