|
|
 |
 |
| |
|
| |
 |
| |
Stake mark |
 |
installed along our pipeline, the arrow points to pipeline airflow direction, one stake mark in every 50 meters on mountainous area, and other sections one stake mark in every 25 meters, installed stake marks on the both sides of road and river. |
|
| |
|
| |
 |
| |
Warning board |
|
installed at the conspicuous places on road ,on the crossing positions for road、railway、river and other sensitive points. |
|
| |
|
| |
 |
| |
CP pile |
|
installed in every one kilometer and HDD two ends, to prevent external corrosion of pipeline. |
|
| |
|
| |
 |
| |
Cast iron pile |
|
installed in every 25 meters on sidewalk and concrete road. |
|
| |
|
| |
 |
| |
Hydraulic protection facility |
|
the pipeline passes through various mountainous areas, where heavy rainfall may cause soil erosion near the pipeline route, or even cause pipeline exposure to the air, which may endanger the pipeline. So need to make hydraulic protection for pipeline. |
|
| |
|
| |
| |
| |
| |
| |
| |
| |
|