At 10 o'clock on the evening of August 29 (UTC +8:00), the domestic large-diameter PE water supply pipe project - Shanghai Beishi Road (Daduhe Road - Caoyang Road Section) water pipe project was successfully completed. The 372-meter-long, 1.2-meter-diameter, and nearly 100-tonne WEIXING PE water supply pipe was “dragging” into the underground and connected to the main trunk network in just 8 hours, replacing the old pipeline that had been in service for more than 22 years. It will become the main water pipe connecting Zhongshan North Road and Shanghai Mid-ring Road, and transport high-quality water to Putuo and Jiading district, making nearly 2 million citizens drink safer and higher quality tap water.

Because the project is located in the residential area of the citizens, and Beishi Road passes through the Taopu River section, it encounters the problems of narrow roads, dense residential buildings, heavy traffic, and complicated underground pipelines. It is very difficult to construct. In order to protect the traffic and normal water use of the surrounding residents, the pipeline project with a total length of 372 meters in the core section is laid by non-excavation technology. The non-excavation technique of the towed pipe allows the pipe to be placed in the slotted section, and then the drilled hole is pulled by the tractor on the other side, just like a long-distance "needle-threading" construction. During the construction process, the construction party adopts mobile guardrail enclosure around the construction area, timely clears and removes the excavated earthwork, cleans it, keeps the road surface clean, and repairs the completed construction section quickly. At the same time, only a short time partial road closure of the surrounding roads happens, this will not affect the traffic; the original pipelines are also supply water normally, and the construction does not affect the residents' water use, the old pipes are replaced by new ones quietly.

The construction time of the project is tight. In order to not to disturb the surrounding schools, it must be completed by the end of August. After receiving the order on August 9, WEIXING NBM immediately began preparations. This is not the first time that WEIXING NBM produced pipe in such large size, and the efficient production capacity can guarantee the delivery time. During the construction process, WEIXING NBM Engineering Service Staff cooperated with the construction unit to carry out construction guidance. After 7 days of welding, the preparations were successfully completed on the 28th.

At 03:00 P.M. on the 29th (UTC +8:00), the pipe dragging has started officially. Pipeline trial drilling, drilling pilot holes, pull-back pipe laying, etc. Construction is carried out quickly and orderly. At 10 o'clock that night, the entire pipeline construction was completed, and the whole procedure lasted less than 8 hours.

The large-diameter and long-distance PE pipe of WEIXING NBM has been successfully laid in the Shanghai urban district, and WEIXING NBM will keep doing our best to make contribution to the water supply business. And hope this project would also become a case and model for laying water supply pipelines in the future.