Spring, the season of peach red willow green, full of flowers. Walking into the Qiwu high-speed construction site, I also walked into the warm and melting spring.
In the green bushes of this group of mountains, excavators, loaders, rollers, pavers, bridge erectors and other large and medium-sized equipment shuttle between the peaks and rush to the curved mountain paths. A group of passionate and hard-working builders are using sweat and hard work to play the "Sound of Spring", casting the classic of Qiwu Expressway and composing a new chapter in the creation of Ping An Centennial Quality Project by Qiwu Expressway.
Innovative management, stimulate vitality, to efficient management to benefit
The Qiwu project is the first project in Jiangxi Province to determine the construction + supervision integration unit through bidding, which has created a precedent in China.
Focusing on the quality engineering goal of "high quality and durability, safety and comfort, economic and environmental protection, and social recognition", Qiwu project gives full play to the intensive, professional and flat management advantages and management efficiency of the integrated management mode of construction + supervision. In the management process, the phenomenon of duplication and overlap of work is avoided, and all parties involved in the construction do their part, and each division can clarify the division of responsibilities and management, so that the project management efficiency is significantly improved.
At the same time, the project has also introduced three professional teams of security consulting, BIM technical consulting and information construction consulting, and efficiently integrated these high-quality resources to inject new momentum and vitality into project management. Vigorously promote the construction of teams, the cultivation of craftsmen, the creation of gold medal teams, etc., through the development of beam plate reinforcement lashing, welding "competition", the most beautiful T beam and other competition activities, the emergence of excellent steel class 2 groups, the most beautiful craftsmen 3 people, 1 gold medal team, the formation of learning technology, skills, innovation project construction atmosphere.
As of the second phase, a total of 5.43 billion yuan of project investment has been completed, accounting for 80% of the estimated investment, and it has won the winning grade in the 2021 annual assessment and evaluation of the highway project under construction in the province's transportation system.
Details are king, innovation is the key, and quality is carefully crafted
The great things of the world will be done in detail. In the construction management, the Qiwu project adheres to the detail management as a breakthrough, takes the standardization of work points as the main starting point for creating quality projects, and creatively proposes the "Implementation Plan for the Standardization of Work Points".
The program formulates standardized layout drawings of work points according to the characteristics of work points and construction environment, and implements unified standards and unified modes so that construction management can be based on evidence. Through on-site observation, ring competition, simulation drills and other activities, we have continuously summarized experience, formed a standardized atlas of work points that can be promoted and copied, and completed the compilation and landmark declaration of the "Guidelines for the Standardized Management of Highway Engineering Work Points in Jiangxi Province".
In the process of project construction, through management innovation, technological innovation and process innovation, we will promote the improvement of project quality and promote the growth of project benefits.
In the construction stage of the subgrade, the Qiwu project innovatively applied more than 20 "micro-innovations" such as slope hydraulic ramming, backfill "square + circle" hydraulic ramming, plastic steel trench light formwork, underwater positioning of pile foundation steel cage, and "white + black" anti-seepage of culverts. In the tunnel management, intelligent functions such as AI face recognition, automatic license plate recognition, real-time positioning of personnel and machinery, automatic gas monitoring, and 3D laser scanners have been innovatively applied. In the construction of the five steel-superimposed beam special bridges, advanced technologies and equipment such as high-bolt automatic screwing wrenches, infrared beam assembly and positioning, hydraulic suspension beam trucks, and crane automatic collaborative bridge erectors have been innovatively used, and more than ten micro-innovations such as beam bottom block adjusters, thin-walled pier reinforced tire frames, steel-composite composite beam automatic health maintenance, and two-lined soft lap have been continuously introduced. In the construction of asphalt mixing station, the first use of heating system oil to gas equipment, not only increased work efficiency and economic benefits, but also reduced the impact on the environment. In the process of pavement construction, intelligent monitoring is implemented for key links such as semi-rigidity and asphalt pavement mixing, paving, and rolling, and real-time paving temperature cloud maps, location, speed fluctuations, and number of compaction trajectories are provided to provide data support for quality backtracking.
In accordance with the requirements of quality engineering creation, in the management process, strictly implement the management methods for the use of quality engineering measures, and do a good job in deployment in combination with the first project and the creation of teams, and do a good job in promoting micro-innovation and micro-improvement to continuously improve the quality of the project. In 2021, the Qiwu project was listed in the list of Ping An Centennial Quality Project Demonstration Projects (the first batch) of the Ministry of Transport.
Integration and interconnection, digital intelligence construction, empowering high-quality development
In the process of project construction, we strive to improve digital skills and digital management capabilities, strive to be the "promising" of digital transformation, continuously deepen the application of BIM technology in the intelligent supervision platform and the construction stage of key projects, and strive to explore new ways for BIM to help project construction.
In the past two years since the start of the project, it has promoted the integrated application of the information design and construction of steel-aliased beams, the research and development of hub traffic guidance and reform software, etc., so that the quality and safety management of complex structures, complex terrain and complex transportation has become more intuitive and simpler; around the standard to set goals, in accordance with the ministry of transport industry standards to improve the project-level BIM modeling and delivery standards, carry out a comprehensive summary, complete the declaration of local standards in Jiangxi Province; around the full play of the role of digital comprehensive intelligent supervision platform, beam plate erection, In the construction control of key parts such as pavement paving, vigorously promote the "visualization of the construction site, graphical presentation of data", and continuously improve the numerical and intelligent level of project management; constantly improve the construction of the mobile terminal of the intelligent supervision platform, while exploring new methods and new means of intelligent construction, for the first time, the use of CA electronic signature, the electronic signature operation into the same visual effect as the paper document stamping operation, to ensure the authenticity and integrity of electronic information and the non-repudiation of signatures, to provide a basis for the transfer of electronic data, so that " The project supervision is mobile, the electronic data is legalized, and the data transmission is real-time", which not only solves the problem of authenticity and timeliness of supervision data, but also relies on supervision + information services to establish a project management big data center.
The development and application of "Digital Wisdom Construction" has made project management move towards specialization, efficiency, standardization and modeling, and has won the first prize of transportation BIM engineering innovation, the second prize of the second BIM competition in Jiangxi Province, and the third prize of the second BIM competition in the engineering construction industry.
Think of danger in times of peace, take precautions, and escort the construction of the project
Since the start of construction, the Qiwu project has taken the control of "three highs and two risks" as the focus of project safety management, and in grasping the key and grasping the key points, it has carefully thought, carefully laid out, taken precautions in advance, solidly carried out basic control work, vigorously grasped safety production supervision in an "all-weather" manner, and consolidated the foundation for safe production with the momentum of "nailing nails".
In the daily management, around the normalization of safety production management, we have effectively promoted the three-year special rectification activities, strictly grasped the special funds for safe production, used them in full, and carried out safety education into the shed 36 times, touching the safety awareness of front-line workers with case education.
According to the characteristics of high-altitude work, blasting operation and bridge building operation, the three-level "grid length" acceptance system of high pier operation safety facilities, the approval system of the safety director of explosives use, the inspection system of the bridge bridge machine via, and the inspection picture are uploaded to the security platform of the project information system, so as to effectively grasp the key to safety control and hold the safety bull's nose.
Focusing on the naming goal of the Ministry of Transport's "safe construction site", with the construction site safety standardization, the first demonstration system of safety protection facilities, the innovation of safety protection measures, and the on-site safe electricity management as the main line, the high-altitude work ladder access control system, the bridge operation edge hard protection, the bridge head access control system, the cross-road safety gantry, etc., which is conducive to ensuring the construction safety; around the implementation of the "one matter, one discussion" joint work mechanism, starting from the improvement of the design of traffic guidance and reform safety facilities, extensive investigation and on-site demonstration were carried out. It has held 12 special meetings and conducted 7 on-site guidance and reform simulation demonstrations, effectively eliminating the "last meter" that affects operational safety, and ensuring the smooth completion of the first guidance and reform of Wuyuan hub interconnection.
With the goal of creating a "safe construction site", taking "safety production standardization" as the foothold, and "safety management grid" as the starting point, we will fully implement the "first demonstration system of safety protection facilities" and implement the assembly, stereotyping and standardization of safety protection facilities. For the first time, it is proposed to promote the use of the "123" model on temporary electricity consumption. Innovatively put forward the concept of "temporary protection permanent", innovative application of intelligent traffic early warning system, main (passive) protection network protection system, folding safety ladder, double-channel box door distribution box, and other 10 safety protection measures, to escort the steady progress of the project.
Yonglin combination, green development, is committed to creating ecological demonstration
Based on the construction concept of "green development + tourism culture", Qiwu Project is committed to creating an ecological transportation demonstration.
In order to protect the natural ecological environment along the project, the Qiwu project vigorously practices the construction concept of "quality pro-construction and quality preservation", and plans a number of construction applications that combine yonglin with the construction of the local "four good rural roads", construction roads and rural roads to achieve a win-win situation on the road and land; the construction of all the Da Lin facilities adopts "Huipai"-style architecture or painting, which is combined with local characteristic culture to make the temporary construction into a landscape; the temporary construction is combined with local planning land and tourism resources to realize the reuse of resources such as venues and facilities and equipment.
Fully implement the principle of "minimum damage", through ecological line selection, adhere to the tunnel zero excavation into the hole, qiao + shrub greening mode ecological slope design, ecological filter bridge deck runoff design, interconnection area terrain construction, ecological environmental protection facilities design, etc., priority green design layout; through the construction site green + cultural wall enclosure, sidewalk slope hanging net spraying, the main bridge construction site equipped with mud separator and mud collection steel box and other practices, the implementation of "one bridge, one scene, one view" green construction site construction standards By configuring sewage treatment equipment, environmental monitoring systems, pulse dust removal devices and other green tricks in the two districts and three fields, the impact of construction on the surrounding environment is minimized; the design of the whole line of housing construction and tunnel cave doors adopts "Huipai" building or painting, and strives to organically integrate with local characteristics and culture, so that Qiwu Expressway becomes a scenic road and a tourist road.