土工新材料“盲沟” New geotechnical material "blind ditch"

何为盲沟

What is blind ditch

盲沟是公路路基或地基内设置的填充碎、砾石等粗粒材料并铺以倒滤层和（有埋透水管）的排水、截水暗沟。

Blind ditch is a drainage and interception ditch that is filled with coarse materials such as crushed stones and gravel, and laid with an inverted filter layer and (with buried permeable pipes) within a highway roadbed or foundation.

盲沟又被叫做暗沟，是一种地下排水渠道，用以排除地下水，降低地下水位。

Blind ditch, also known as blind ditch, is an underground drainage channel used to drain groundwater and lower the groundwater level.

盲沟排水是根据地下工程的外轮廓布置管道网，来确定盲沟构造反滤层的选材，以及与基础的最小距离。

Blind ditch drainage is the selection of materials for the inverted filter layer of blind ditch construction and the minimum distance from the foundation based on the layout of pipeline network according to the outer contour of underground engineering.

塑料盲沟是将热塑性合成树脂加热融化后通过喷塑挤压出纤维叠置在一起，并将其相接点融结形成的三维立体多孔材料。外面包裹土工布作为滤膜，有多孔矩形，中空矩形，多孔圆形，中空圆形四种形式，尺寸规格可以根据需求定制。它广泛的应用在隧道防渗排水，铁路公路的路基排水，软基筑堤，挡土墙反滤，坡面与坡内排水。地下建筑的排水防潮，草坪的集排水系统，天台花园集排水，污水处理厂与垃圾填埋场等各类工程。

Plastic blind ditch is a three-dimensional porous material formed by heating and melting thermoplastic synthetic resin, then extruding fibers through spray molding and stacking them together, and melting their phase joints. Wrapped with geotextile as a filter membrane, there are four forms: porous rectangle, hollow rectangle, porous circle, and hollow circle. The size specifications can be customized according to needs. It is widely used in tunnel anti-seepage and drainage, railway and highway roadbed drainage, soft foundation embankment construction, retaining wall filtration, and slope surface and internal drainage. The drainage and moisture-proof of underground buildings, the collection and drainage system of lawns, the collection and drainage of rooftop gardens, sewage treatment plants and landfills, and other various projects.

使用的寿命

Service life

塑料盲沟由耐腐蚀纤维制成的滤膜和可改性聚乙烯的三维立体网状组合，都具有在土中、水中永不降解的优点，再加上抗老化配方，能保持永久性材质无变化的性能。

The plastic blind ditch is a three-dimensional network combination of filter membrane made of corrosion-resistant fiber and modified polyethylene, which has the advantage of never degrading in soil and water. In addition, the anti-aging formula can keep the performance of permanent materials unchanged.