Domestic first assembly type superposition tube gallery appears in changsha high-tech zone

On June 26, in changsha high-tech zone comprehensive pipe gallery pilot project and liaojiaping municipal road built by China 20 metallurgical group co., LTD., many mainstream media journalists gathered at the project site and visited the comprehensive pipe gallery project of high-tech zone.Changsha high-tech zone has 4.38 km of comprehensive pipe corridors (2.36 km of hongfeng road and 2.02 km of cedar road).Changsha high-tech zone comprehensive pipeline corridor pilot project and liaojiaping municipal road PPP project include four sub-projects: comprehensive pipeline corridor first phase project, comprehensive pipeline corridor second phase project, partial municipal projects within liaojiaping area east of huangqiao avenue, and jinzhou avenue improvement and renovation project.

The first phase of the 4.4 km changsha underground comprehensive pipe corridor pilot project assessment task;The second phase is 5.6 km long term planning comprehensive pipe gallery project (including road);The third phase is part of municipal roads in liaojiaping area east of huangqiao avenue.The fourth phase is the improvement project of jinzhou avenue (huangqiao avenue - gaont, all in the area of liaojiaping).

The cooperation project shall be implemented in five years. The specific sub-project shall be constructed and operated in the mode of "2-year construction period + 8-year operation period", and the overall cooperation period shall be 13 years.

As one of the first batch of prefabricated superimposed pipe corridors in China and the third phase of changsha underground comprehensive pipe corridor pilot project, it is also one of the "underground comprehensive pipe corridor" pilot projects in changsha city. The municipal party committee and government attach great importance to it, and the relevant leaders of high-tech zone have also arranged the construction on site for many times.

Guo hui, chief engineer of the comprehensive pipeline corridor project in the high-tech zone of China 20 metallurgical group, introduced that the two integrated pipeline corridor access pipelines, including power, water supply, drainage, communication, gas and traffic information pipelines, were constructed through PPP project cooperation.As the lifeline of the city, the underground pipe network is closely related to the life of the residents and constitutes the underground "nervous" system of the city.In the future, pipeline maintenance will not need to dig roads. Maintenance personnel and engineering vehicles only need to enter the underground pipe corridor from the maintenance channel to carry out construction, so as to avoid affecting road traffic, reduce pipeline maintenance cost, save intensive land use and extend pipeline service life.After the construction of the project, it will also greatly facilitate the lives of residents.

Changsha high-tech zone comprehensive utility tunnel in changsha underground pipe rack and municipal road projects as the third phase of the pilot project construction projects, with great live work composite assembled monolithic utility tunnel technique, a combination of both cast-in-situ integrity good characteristics, and played a simplified the construction process of prefabricated advantage, become the leading flag for Chinese urban underground space reengineering revolution.

Construction of the comprehensive pipe gallery on hongfeng road and cedar road started in August 2017. At present, the main part of the pipe gallery project has been basically completed, and rain water and roadbed construction are underway.Next, China 20 metallurgical group changsha high-tech zone pipe gallery project department will continue to carry forward the spirit of "not a day is not delayed, not a day is not slack", speed up the roadbed and pavement structure and comprehensive pipe gallery electromechanical engineering construction, create quality projects, for the owners to submit satisfactory answers.

China metallurgical group 20 is the earliest comprehensive utility tunnel builders, have won the bid for construction of zhuhai hengqin underground pipe gallery (33.4 km) to the project, Qingdao airport comprehensive utility tunnel project, the comprehensive utility tunnel engineering in hanzhong city, yi chun city economic development zone comprehensive pipe rack and other large and medium-sized comprehensive utility tunnel projects, has accumulated rich experience in construction, two pipe rack, editor-in-chief of the national standard comprehensive utility tunnel foundation pit supporting, the cast-in-situ concrete composite pipe rack and the first comprehensive utility tunnel national standard atlas of the cast-in-situ concrete composite pipe gallery gl201 (17).Participated in the compilation of "technical specifications for comprehensive pipe gallery", and the construction of zhuhai hengqin underground comprehensive pipe gallery project won the luban award, the first national pipe gallery construction project.