Humen Bridge will be reinforced and maintained in Dongguan, Guangdong, with a construction period of 180 days.

Humen Bridge, as an important part of Guanfo Expressway (the southern connecting line of the ring expressway in the Pearl River Delta region), appeared abnormal jitter in May this year, and immediately made headlines in major media and became the focus of hot search again. Later, after verification and testing, the abnormal situation did not pose a threat to the safety of the bridge.

Humen Bridge1started on October 28th,1992; It was completed and opened to traffic on June 9,1997; It passed the completion acceptance on April 20th.1999; Up to now, the maximum daily flow has reached 6.5438+0.98 million. It is understood that Humen Bridge started the west anchor reinforcement and maintenance project (Phase I) of suspension bridge on 20 17. At present, according to the news released by relevant departments, Humen Bridge will carry out the second phase reinforcement and maintenance of the west anchor of suspension bridge.

It is understood that the project has been included in the 2020 annual plan of Guangdong Humen Bridge Co., Ltd. and approved by Guangdong Communications Group Co., Ltd. The project is located at the Humen Bridge Suspension Bridge of Guanfo Expressway, spanning Nansha in Guangzhou and Humen in Dongguan. Time limit for a project 180 days, normal maintenance works.

The main construction contents include: pouring C40 corrosion-resistant high-performance concrete with a thickness of 15cm on the peripheral side wall of the upstream side of the west anchor and the side wall of the downstream side of the west anchor of the suspension bridge, and setting two layers of anti-crack steel mesh, with the outer steel mesh φ 12mm, the inner steel mesh φ 16mm and the rebar planting φ16 mm; Grouting and sealing treatment are carried out for the cracks in the anchorage of the west anchor.

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