<h1 class="pgc-h-arrow-right" data-track="1" > - Shunguang Metro Project Department Labor Competition Construction Documentary</h1>
With the approaching of the construction period node, the mechanical and electrical engineering of the western extension of the Shunde section of the first phase of Guangzhou Rail Transit Line 7 has entered a critical period of Dagan. The builders of the Qixi Mechanical and Electrical Project are embarking on a race against time, walking into the Shunguang Metro Project Department, the ranking of labor competitions comes into view, and the construction enthusiasm that is hotter than the early summer is coming.
<h1 class="pgc-h-arrow-right" data-track="24" > facing difficulties Challenges are impossible</h1>
In the routine operation of the subway, it is necessary to carry out mechanical and electrical installation construction after the hole and the rail, due to the tight mechanical and electrical installation period given by the owner, especially for the power supply and mechanical and electrical professionals of the construction after the station, it is almost a tense construction situation of "rail access is Dentsu". According to the traditional construction method, the construction of power supply and mechanical and electrical professional construction relies on the progress of track laying, resulting in tight construction time and greater difficulty.
In addition, most of the materials in the power supply construction need to be ordered after the measurement of the elevation after the completion of the track construction, especially the evacuation platform bracket and panel, the order time is limited by the progress of track laying, the manufacturer's production cycle is long, and it takes 1-2 months of production cycle, resulting in a shortage of construction materials. In addition, there are more professional construction operations in the interval, the personnel investment is larger, and the cross-construction of the interval power supply, electromechanical and weak current professionals, there are factors that restrict each other, which not only leads to slow construction progress, but also greatly increases safety risks. The lag of the unit in front of the station shortened the originally tight construction period again, facing an almost impossible construction task, and the project department could only grit its teeth and face the difficulties.
In the face of this difficult "bone", the project manager Shangguan Quan said: "I believe that our team, as long as the cohesion is in, there is nothing that cannot be done", the project executive deputy manager Lei Renlong led, comprehensively sorted out the workload, and found the key point to solve this problem: to cut the relevant work of mechanical and electrical installation and construction in advance after the hole and before the rail to ensure the time of mechanical and electrical construction. The project department has carried out special research on process optimization, work surface development, material support, etc., continuously optimized the construction process, opened the work surface by adjusting the process, and formed a situation of great dryness; all management personnel worked in shifts, fully invested in production, to ensure that the site 24-hour construction was uninterrupted; and constantly strengthened the input of personnel, machinery and materials, so that the construction site was in a hot state.
<h1 class="pgc-h-arrow-right" data-track="23" > take the initiative to ensure production with action</h1>
Due to the team's first subway construction project, it lacked mature experience and technical support. In the early stage of construction, the Shunguang Metro Project Department did not wait for it, took the initiative to attack, actively strengthened the synergy with the owner, design, supervision and other participating units, overcame the unfavorable factors of untimely updating of drawings, and led the relevant units to actively hold a design liaison meeting. The establishment of a subject research group, the technical research and the construction site closely combined, rooted in the scene, night and night to study the subway mechanical and electrical engineering construction technology, from will not come to the meeting, from the pass to the pass, not only strengthen the construction process control, but also so that the subject research group and the operation team formed a good situation of mutual cooperation.
For the key project cable project, the preliminary line measurement is carried out in the section of the road between the whole district, and at the same time, the track and civil engineering majors are coordinated and communicated in advance, and strive to achieve "laying a section, measuring a section, and drying a section", which improves the utilization rate of the construction period from the side, and also provides a strong technical support for the construction of substations, catenarys and ring network cables.
Due to the large and intensive demand for materials and materials during the dry period, the manufacturer's production cycle is long, resulting in the supply can not meet the normal construction needs. In order to avoid the unfavorable situation of lagging arrival of materials and materials, stopping work and waiting for materials, and restricting the progress, the project department sent a special person to set up a material adjourning team at the first time, directly stationed in the material manufacturers, grasped the latest developments of the manufacturers in real time, closely followed the production and inspection process, and kept an eye on the whole process until the factory delivery, and the material distribution center also actively coordinated the lifting time, fought together with the construction team, transported the materials to the operation point, and provided sufficient material support for the construction of the construction with excellent adaptability.
<h1 class="pgc-h-arrow-right" data-track="22" > perform the contract in good faith and the mission will be achieved</h1>
Affected by the welding rail of the track laying unit, the time open to us for construction in each section is scattered and short, such as the section from the Midea Avenue Station to the Beijiao Xincheng Station from the beginning of construction to the beginning of the closed section to start welding rails for only 8 days, of which less than half of the time that can be allowed for construction. In particular, the 1km corridor of the main office of Yifeng parking lot has problems such as narrowness in the passage that is not conducive to construction, and the construction progress of the ring network cable is quite slow. To connect the optical cable to the equipment inside the substation, it must be carried out manually, and it needs to cross the interlayer across a penetration distance of one or two hundred meters. In addition, In May, Guangdong is in the hot summer, the tunnel is extremely hot day and night, and the air inside is not circulating, and it is also mixed with the exhaust gas generated by the construction of the generator, and the working environment is extremely difficult.
The difficulty is the focus, and the idea is the way out. In order to ensure the realization of the node construction period, the project department rose to the challenge, quickly held a mobilization meeting, clarified the transmission node again from top to bottom, continued to increase manpower investment, the highest peak number of people on the spot reached 300 person-times, and with the resolute attitude of "not giving up on the work", the on-site leading group was set up, and the final charge was launched on this most difficult and important battlefield.
The 37-degree heat scorched the pavement mercilessly, the cable display rack was ready like a gun emplacement before the battle, and the plate of cables was waiting for traction. Tens of meters underground, the enthusiasm of the line release site is equally enthusiastic like fire, tens of meters of a group of workers in the tunnel in a line of lines, shouting the slogan of "one, two, three", with the shoulder to shoulder, against the airtight sweltering heat and shoulder cable double pressure to move forward, overtime, people boiling, sweat flying together, in the western extension of Guangzhou Metro Line 7 to draw a picture of riding the wind and waves.
With the establishment of the coordinated operation mechanism of all parties, the project department of all parties due diligence, close cooperation, the formation of the courage to leapfrog, the pursuit of excellence of the work force, hard in a short period of time to complete 42 cable laying a total of 36km, cable 18 terminal heads, 24 intermediate heads and nearly 16800 sets of brackets of the installation, for the full line of Dentsu node construction period to take the most solid step.
<h1 class="pgc-h-arrow-right" data-track="21" > experimenting with new methods is frequently praised</h1>
In order to quickly set off a climax of the cadres, the project department opened the labor competition of "winning the victory and guaranteeing the opening and building a new era of meritorious service" at the end of March, clarified the competition indicators, carried out weekly evaluation and publicity, "real money and silver" assessment, the enthusiasm of the labor service teams was high, the word "dry" was the head, the word "real" was the first, the confidence was firm, and the strongest sound of the special labor competition was played with a charging posture.
In the competition, the team pooled their wisdom and efforts, and a number of construction highlights emerged. The traditional mode of material distribution center only needs to hoist the material to the hoisting port, placed in the designated position, due to the track laying unit track laying progress lags behind, mechanical and electrical installation into the interval operation time is limited, in order to maximize the construction team time use efficiency, the project department set up a material transport team, the materials are sent to each need construction point, so that the operators can reach the operation location can be constructed, greatly shortening the time for the acquisition of on-site construction materials.
Throughout the construction process, time is the most scarce and precious resource. After the tunnel, the project organizes technical personnel to study and explore trackless construction, intervene in advance before the rail, win valuable time for the entire mechanical and electrical project, and conduct in-depth research on the subway trackless construction scheme, and will form a QC achievement report, which will play a reference role in the mechanical and electrical construction of the subway.
In Guangdong in May, roses bloom quietly, and the sweet fragrance declares that summer has come. The sound of the railcar running back and forth in the tunnel, the roar of the generator and the collision of the electric drill with the tunnel wall made me feel a touch of emotion from my heart. Now, all the staff of the project are still busy in an orderly manner. In the near future, this place will become a happy harbor for the people of Guangdong and Foshan to communicate, and all electrified people will be proud of the sweat they have shed here. (Correspondent Ye Ding, Zhu Huaiyi)