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According to the difference of medium, the rubber dam can be classinfied into inflatable dam and water dam：
1.The water dam is more stable, when the dam was overflow on the top, small scour to catchment area.
2. Due to the inflatable is of much bigger compressibility, in flatable damhave notch phenomena when overflow on the dam top, current is centralize, there is strong scour to catchment area.
3. When in the freezing zone, there is no problem on inflatable dam medium; water dam do not have this advantage.
4. Inflatable dam asks for high demand on inflatable proof; water dam asks for lower requirement on this aspect.
5. Inflatable dam is lower than water dam on projection in vestment.
| The character istic of incline dam and pillow dam |
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The character istic of inflatable dam and water dam:
1.The water dam is more stable, when the dam was overflow on the top, small scour to catchment area.
2. Due to the inflatable is of much bigger compressibility, in flatable damhave notch phenomena when overflow on the dam top, current is centralize, there is strong scour to catchment area.
3. When in the freezing zone, there is no problem on inflatable dam medium; water dam do not have this advantage.
4. Inflatable dam asks for high demand on inflatable proof; water dam asks for lower requirement on this aspect.
5. Inflatable dam is lower than water dam on projection in vestment. |
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The character istic of incline dam and pillow dam ：
1、Incline damproduce andinstall conveniently, economize the material and can solve collapse problem of pillow dam.
2、In the process of installation, incline dam can achieve mechanization, economize labour resource.
3、Under the same circs of dam bag material, incline dam is higher than pillow dam on satety facfor. |
HEIGHT(M)
|
INNER PRESSURE |
SAFETY FACTOR(K) |
AVAILABLE WIDTH(M) |
AVAILABLE GIRTH(M) |
MODLE |
CUBAGE PER METRE(M2) |
1.0
|
1.60 |
36.3 |
1.30 |
3.18 |
JBD1.0-100-2 |
0.55 |
| 1.5 |
1.60 |
16.1 |
1.95 |
4.78 |
JBD1.5-100-2 |
1.2375 |
| 2.0 |
1.50 |
10.0 |
2.87 |
6.51 |
JBD2.0-100-2 |
5.7612 |
| 2.5 |
1.45 |
8.08 |
3.80 |
8.26 |
JBD2.5-120-2 |
9.3231 |
| 3.0 |
1.30 |
10.0 |
5.64 |
10.59 |
JBD3.0-180-2 |
15.4836 |
| 3.5 |
1.30
|
8.1 |
6.58 |
12.35 |
JBD3.5-200-2 |
21.0749 |
| 4.0 |
1.25 |
8.0 |
8.25 |
14.62 |
JBD4.0-240-2 |
29.448 |
| 4.5 |
1.25
|
8.6 |
9.28 |
16.45 |
JBD4.5-220-3 |
37.27 |
| 5.0 |
1.25 |
9.6 |
10.31 |
18.28 |
JBD4.5-300-2 |
46.0125 |
| 6.0 |
1.25 |
11.6 |
12.37 |
21.94 |
JBD6.0-GS1250-1 |
66.258 | |
| ITEM |
UNIT |
OUTER COVER |
MIDDLE COVER |
RUBBER SHEET |
STANDARD |
| INNER COVER |
| TENSILE STRENGTH AT BREAK≥ |
MP。 |
14 |
12 |
6 |
GB/T528-92 |
| ELONGATION AT BREAK≥ |
% |
400 |
400 |
250 |
GB/T528-92 |
| SET AFTER BREAK≤ |
% |
30 |
30 |
35 |
GB/T528-92 |
| HARDNESS(A) |
。 |
55～65 |
50～60 |
50～65 |
GB/T531-92 |
| BRITTLENESS TEMPERATURE≤ |
℃ |
-30 |
-30 |
-30 |
GB1682-82 |
AIR OVER AGEING
（100℃X96h） |
TENSILE STRENGTH AT BREAK≥ |
MP。 |
12 |
10 |
5 |
GB3512-83 |
| ELONGATION AT BREAK≥ |
% |
300 |
300 |
200 |
GB3512-83 |
FRESH WATER OVER AGEING
（70℃X96h) |
TENSILE STRENGTH AT BREAK≥ |
MP。 |
12 |
10 |
5 |
HG690-82 |
| ELONGATION AT BREAK≥ |
% |
300 |
300 |
200 |
HG690-82 |
| VOL EXPANDING≤ |
% |
15 |
15 |
15 |
HG690-82 |
| OZONE AGEING：10000pphm,TEMPERATURE40℃，ELONGATION20%NO CRACKING |
min |
120 |
120 |
100 |
GB7762-87 |
| ABRASION≤ |
Cm3/1.61KM |
0.8 |
1.0 |
1.2 |
GB1698-82 |
| FLEX. NO CRACKING |
|
20 |
20 |
20 |
HG4-836-82 |
|
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