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  4. Precautions for silicon core hose constr...

Precautions for silicon core hose construction

Precautions for silicon core tube construction
1. When the silicon core tube is unloaded, the operator will gently lift it into the tube trench and tube box every 10 meters. It must not rub against the ground, keep the pipeline straight, without twisting, twisting and other phenomena. The silicon core tube should be placed in an orderly manner in the trench, and the silicon core tube should be straightened as much as possible, and bundled with packing tape every 5 meters to prevent confusion. Silicon core tube price Silicon core tube continuous micro-bending and multiple ups and downs in the pipe trench will have a significant adverse effect on the air blown cable. The loose soil of the slope shall be enclosed in sections by concrete.
2. The silicon core tube crossing the bridge is protected by a steel tube or a tube box. The steel tube or the tube box is fixed on the outside of the bridge guardrail. All the elevation gradients outside the upper and lower bridge guardrails are also protected by steel pipes. The two ends of the steel pipe at both ends of the bridge should extend out of the bridge plate to the subgrade, and the length is 1-2 meters, extending to the depth of the communication pipeline to prevent the side of the beam and the road surface sinking caused by shearing, directly acting on the silicon core tube on. When using the tube box layout, first open the box cover, put the silicon core tube, and then cover the box cover. The slope of the manhole, bridge and culvert should be adjusted (1:10). The Chengdu CPVC power pipe and the back wall of the bridge should be at the same level as the bottom of the pipe box.
3. The silicon core tube laid on the same day should be backfilled with 10-15 cm of fine sand to minimize the exposure of the silicon core tube to prevent damage and theft. During and after the construction, the pipe mouth should be sealed to prevent water, soil and other debris from entering the silicon core tube. When backfilling pipe trenches, 10-15 cm thick fine sand should be filled first. It is strictly forbidden to directly fill large amounts of stones, bricks, and concrete into the trench. The backfill soil should be 10-15 cm above the ground, and manually tamped if necessary. C15 concrete trenches shall be sealed in the easy-to-wash areas. For the long-distance laying of silicon core tubes, markers should be buried in the route, and markers should be set at intervals of 200 meters in the straight line section of the pipeline, which should comply with YDJ44-89 regulations of the Ministry of Posts and Telecommunications.
4. Connection of silicon core tube: The specification and program of the connection and connection of the silicon core tube should meet the design requirements. Special tools should be used to cut and connect the silicon core tube. Joint points should not be set as far as possible in the perennial or seasonal water accumulation section. Joint points should be as far away as possible from high-temperature heat sources and other areas prone to corrosion. When the silicon core tube cannot be connected immediately after being laid, the silicon core tube should have sufficient overlap length for future use, at the same time, buried protection and make a sign.

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