Yingshan, Sichuan: Irrigation district renovation depicts the progress of winter and spring construction

The winter and spring seasons are the golden period for water conservancy construction. At the site of the ongoing construction and modernization projects in Yanjing and Chapan irrigation areas in Yingshan County, Nanchong City, Sichuan Province, excavators swing their long arms to repair channels, loaders efficiently transport soil and stone, mortar transport vehicles shuttle back and forth, and nearly 300 workers go to nearly 20 work sites for synchronous construction. The roar of machinery and the figures of labor interweave to create a progressive scene. As one of the 24 pilot projects for promoting integrated irrigation in the province, Yingshan County takes "rushing for construction period, grasping progress, and ensuring quality" as the main line, and accelerates project construction through mechanism innovation, resource aggregation, and strict management and control.

Grab the construction period, double line drive to improve efficiency

Breaking away from traditional decentralized construction and building a dual wheel drive model of "coordinated scheduling+assembly line operation". After the project is launched in November 2025, the county party committee and government will establish a working team to implement a "daily report, weekly scheduling" promotion mechanism, and timely solve difficult and congested problems such as land coordination and material transportation. The construction party has refined the construction tasks of the 74 kilometer backbone canal system and the 36 kilometer final canal system to days in accordance with the requirements of "reverse schedule and hanging map operation". More than 50 mechanical equipment such as excavators, loaders, and concrete mixers are deployed daily to achieve seamless connection between canal excavation, formwork pouring, and supporting facility construction. In response to the characteristics of winter and spring construction, a "rain+clear", "white+black", and "5+2" work mode has been implemented, with reasonable division of day and night work teams, avoiding key processes such as concrete pouring during low temperature periods, ensuring both construction efficiency and quality safety. As of now, more than 40% of the total project investment has been completed.

Concentrate efforts to promote multiple measures simultaneously to tackle challenges

Build a multi-level linkage pattern of "county-level coordination, departmental collaboration, township leadership, village and community implementation, and mass participation", making the transformation of irrigation areas a nationwide campaign. The preliminary work of the project strictly adheres to the principle of "no reduction in procedures and shortened construction period", and carries out key links such as scheme preparation, financial evaluation, engineering bidding, and contract signing. The project only takes 3 months from application to commencement, efficiently running the "Yingshan speed" of project promotion. County Water Affairs Bureau and Xingfu Reservoir Management Bureau strengthen technical guidance and quality supervision; The county committee's target office conducts on-site inspections and regularly holds scheduling meetings; The county finance bureau accelerates the progress of financial evaluation and ensures the disbursement of funds; Owners, supervisors, construction and other parties involved in the construction work simultaneously and resonate with each other, forming a working mechanism of "clear division of labor, strong cooperation, and efficient operation"; Assign dedicated personnel from townships to handle conflicts and disputes on site; The village community promotes policies through the "courtyard dam meeting", fully mobilizes the support and participation enthusiasm of the masses, and consolidates a strong joint force of "government canal construction and public canal protection".

Strictly control quality and build a defense line with a dual approach

Build a "specialized management+group management" regulatory system to strengthen the defense line of engineering quality and safety. Strictly implement the "five in one" quality control system of project legal person responsibility, supervision unit control, construction unit guarantee, audit tracking and supervision, and project special team guidance, and organize representatives of all parties involved in the construction to sign quality commitment letters; The specialized office, project owner, and supervisor coordinate the allocation of manpower and material resources, establish a mechanism of "leadership responsibility and technical personnel responsibility", and conduct weekly and irregular inspections of quality, progress, and other aspects at various construction sites; Strictly implement the four level inspection mechanism of "construction self inspection, supervision level inspection, third-party sampling inspection, and supervisory department flying inspection", and carry out "full coverage, no blind spots" inspection on key indicators such as channel section size, concrete thickness and strength. The inspection records are kept and archived throughout the process to ensure traceability and backtracking. In the second section of the Yanjing Irrigation District, three instances of substandard formwork and two instances of honeycomb and rough surface in the concrete pouring were found, and the construction unit was immediately ordered to stop work for rectification and rework. The construction process was resumed only after passing the third-party re inspection according to the specifications; Inviting water conservancy experts and design units to provide on-site guidance, optimize construction processes, and standardize operating procedures for technical difficulties such as the renovation of open and closed channels and the installation of culverts. Synchronize the establishment of a public supervision system, establish a closed-loop mechanism of "public feedback, dedicated personnel verification, time limited rectification, and timely response" by publishing supervision phone numbers and inviting village supervision representatives, guide the people along the line to actively participate in daily project supervision, encourage them to take photos and report problems such as non-standard construction and quality hazards at will, and make the masses become civil supervisors of project quality and safety. Through the linkage mode of "specialized management and overall supervision+group management and supplementary positions", weave a dense network of engineering quality and safety supervision.

The total investment for the renovation project of Yanjing and Chapan irrigation areas is 110 million yuan, with a construction period of six months, covering towns and villages such as Dongsheng, Luoshi, and Wanglonghu. After completion, it will increase or improve the irrigation area by 52700 mu, providing a solid guarantee for building the water conservancy foundation of the "Tianfu Granary". At present, the project construction is in a critical stage of a hundred day battle. Yingshan County will maintain a tough situation, strictly control the progress, quality, and safety, and carry out the project construction with a sense of responsibility to ensure that the project is completed and effective as soon as possible. This will revitalize the old irrigation areas and provide replicable and promotable practical experience for the overall promotion of irrigation areas in the province. (From Xingfu Reservoir Management Bureau in Yingshan County)