The purpose and function of etiquette in the stubbornness of variable compliance, make people's temperament moderate, make him respect others, get along well with others.
Soft permeable pipe is a new type of underground drainage materials, which are mainly used in: all kinds of retaining wall on the back of the vertical and horizontal drainage; embankment and shoulder highway, railway, water drainage of soft soil foundation; hillside ditches, gutters, soft permeable pipe is arranged in the subgrade slope on the hill above, used to intercept hillside to subgrade surface runoff, to reduce the burden of side ditch water, protect the excavated slope and embankment slope is not affected by water erosion.
Hillside ditches should be arranged in the excavated slope before excavation, slope excavation and embankment slope shall ensure that is not affected by water erosion damage. Intercepting ditch excavation, also used wooden light sample inspection, to ensure that the section size of interception ditch shall be in accordance with design requirements. The specific operation can arrange the construction according to the actual situation on site.