QIFENG WATERPROOF AND DRAINAGE PROTECTION SYSTEM
- Implementation standards：
Its piano-convex structure separates the base and the surface layer and forms a integral inter space among dense pivots that eliminate the stress and water press. The inter space has the functions of drainage, insulation, soundproofing, ventilation and braiding. The HDPE sheet has high physical function of weather resistance, shock resistance and wear resistance, and has chemical stability. Its installation and application is quickly, safely and environment friendly.
1.Excellent selection of raw materials - our HDPE (High Density Polyethylene) (1)HDPE (High Density Polyethylene) chemical properties is extremely stable,Acid and alkali Resistance anti-plant thorn, flexibility is very good, excellent resistance to tearing ability, excellent impact resistance, impermeable, airtight, performance is not affected at low temperature (-40 ℃), the use of performance remains unchanged over a hundred years in the ground , complete with buildings life.
(2)HDPE (high density polyethylene) to compare with the other waterproof and drainage material
◣ Ps (Polystyrene): There are obvious shortcomings, poor flexibility, very brittle, easily broken, poor impact resistance.
◣ HIPS (high impact polystyrene-resistant): improved impact resistance, HIPS drainage board poor performance in terms of tear, easy to break, easy to tear, hard surface, easy to pierce the lower part of the waterproof layer.
◣ HDPE (High Density Polyethylene): extremely stable chemical properties, acid and alkali, low temperature flexibility is very good, excellent resistance to tearing ability, good impact resistance. Use the same performance over a hundred years in the ground.
2.Unique bosses parallel design, great high drainage efficiency
Unique bosses parallel distributed design greatly enhance the drainage efficiency, far better than the orthogonal projection due to lack of distribution design compressive strength design.
|Orthogonal distribution terrace|
waterproofing and drainage board
|Parallel distribution terrace waterproofing|
and drainage board
Non-flat design lead lap poor sealing, causing dislocation occurs easily during the construction, which can not effectively complete drainage and protection. Lock overlap in the construction process often because grassroots irregular, causing large deformation results can not overlap. Odd sealed plate welded design waterproofing and drainage board construction factors reduce the dislocation caused by the greatest extent, to ensure excellent tightness entire anti-drainage system.
|Lock lap||Flat welding|
Up to 2.3m wide large standardized product design minimizes overlap and improve the tightness and security of the system, to ensure the construction efficiency, while reducing construction costs.
5.Boss enhance the design, compressive strength is more remarkable.
Tunnel waterproofing and drainage protection system System Overview Rock joint often exist within a large number of mountain tunnels fissure water, after the second tunnel surrounding rock in a stable equilibrium cracks would develop further, richer fissure water, once the tunnel leakage , water will cause varying degrees of erosion of tunnel support structure,reducing the durability of the tunnel lining, and ultimately reduce the service life.For mountain tunnel project waterproof, CKS introduced the "drainage water" design method, CKS believes that since the tunnel "waterproof layer is difficult to effectively avoid destruction" against the mountain tunnel project waterproof, environmental water is bound to form a diffusion layer of water leakage, combined with water as the fluid is always flowing along the path of least resistance, mountains Strip traffic tunnels are generally equipped with longitudinal free drainage slope to allow free drainage of water environment, if the waterproof layer environmental water outside the effective and timely emissions and dry permeable, waterproof tunnel should be the key to this case is the ideal combination of anti-discharge water solution.
|Brick protection||Polystyrene board protection||Drainage board protection|
2.Tunnel waterproof and drainage area traditional practice and its defects
Traditional practices in the field of tunnel waterproof and drainage is in between the primary support and secondary die cast reinforced concrete set plastic waterproof board, form the waterproof liner system, use waterproof plastic shatter-proof board will Isolated the water from the secondary lining and the surrounding rock. Single waterproof effect, not waterproof; secondary concrete density is poor, if plate damaged , it will leakage and seriously channeling water.