• Summary
• Specification
• Examples

Shape and types

Features of SHD

1. ① Convenient installation process and reasonable construction costs
2. ② Fast construction as it is able to be constructed the length for one roll (32?-450m, 50?-220m) at once
3. ③ No joint construction, no joint detaching problem
4. ④ Larger water flow area increases drain performance
5. ⑤ Spiral bundle with high stiffness prevents the reduction of water flow cross section due to upper earth pressure
6. ⑥ Convenient construction regardless of grade
7. ⑦ Can be made to satisfy various standards according to designated drain amount
8. ⑧ Dissolved oxygen maximizes in fluid flow – eco-friendly

Comparison with existing products

1. 1. Comparison by product

   Comparison by product

   Division	Comparing product			SHD
   Mat-type multi-channel	200type	Width	200	SHD-200	Width	100
   		Height	17		Height	50
   		Drainage area	2,380		Drainage area	3,179
   	300type	Width	300	SHD-300	Width	150
   		Height	17		Height	50
   		Drainage area	3,570		Drainage area	4,769
   Circle-type multi-channel	75φ	Diameter	75	SHD-S75	Width	100
   					Height	90
   		Drainage area	3,091		Drainage area	4,769
   	100φ	Diameter	100	SHD-S100	Width	100
   					Height	100
   		Drainage area	5,495		Drainage area	6,359

   (※ Units: length-mm, area-mm²)

2. 2. Drainage Area Comparison

   Drainage Area Comparison

   Comparing product	Mat-type multi-channel 200type	Mat-type multi-channel 300type	Circle-type multi-channel 75φ	Circle-type multi-channel 100φ
   Drainage area (㎡),①	2,380	3,570	3,091	5,495
   SHD	SHD-200	SHD-300	SHD-S75	SHD-S100
   Drainage area (㎡),②	3,179	4,769	4,769	6,359
   Comparison(②/①×100)	134%	134%	154%	116%

3. 3. Comparison of discharge rate of drain (hydraulic gradient 1/1000)

   Comparison of discharge rate of drain

   Comparing product	Mat-type multi-channel 200type	Mat-type multi-channel 300type	Circle-type multi-channel 75φ	Circle-type multi-channel 100φ
   Drainage area (m2),①	1.6	2.6	1.6	2.6
   SHD	SHD-200	SHD-300	SHD-S75	SHD-S100
   Drainage area (m2),②	2.14	3.21	3.21	4.29
   Comparison(②/①×100)	133%	123%	200%	165%

4. 4. Water flow ability according to drain inclination

   Water flow ability according to drain inclination

   Drain inclination / Type	SHD-200(㎥/hr)	SHD-300(㎥/hr)	SHD-S75(㎥/hr)	SHD-S100(㎥/hr)
   1/1,000	2.14	3.21	3.21	4.29
   2/1,000	4.29	6.43	6.43	8.57
   3/1,000	6.43	9.64	9.64	12.86
   4/1,000	8.57	12.86	12.86	17.14