General situation of engineering project
Hengyang steamed water? Hechuang Bridge is located on the bank of the steamed water in Huaxin Development Zone, Hengyang City. After completion, it will be connected with the steamed water avenue and Yan 'an Road. The construction of the bridge will play a very important role in accelerating the development of the business districts on the east and west sides of the steaming water and improving the urban traffic network near the bridge. Among them, the construction unit: Hengyang Hechuang Real Estate Development Co., Ltd. Design unit: Hunan University Design and Research Institute Co., Ltd. Supervision unit: Hunan Changsha Jinyang Construction Engineering Supervision Co., Ltd. Construction unit: Hunan Fifth Engineering Co., Ltd. This project plays a very important role in improving the urban traffic network near the bridge. Therefore, on the premise of safety, improving the construction progress of this project is related to the development of the city on the one hand. The sooner the project is completed, the sooner the city's transportation network will enter the track. From here, we can build this project on the steaming river. We should consider the degree of corrosion of the river to the bridge, the depth from the foundation to the bottom of the river, and how deep it will not collapse. In addition, the velocity of steam river should also be considered to determine the post-holiday scheme of this bridge, as follows.
Bridge structure and construction scheme
According to the characteristics of bridge span layout, pier layout should be concise and beautiful. A vase-shaped pier is adopted, and a beam is arranged at the top of the pier. The bridge foundation is reinforced concrete bored pile with pile diameter d 180cm( 1 # pier and 6# pier); D 220 cm (piers 2 # and 5#); D 250 cm (pier 3 and pier 4). 0# and 7# abutment adopt pile type, and the pile foundation adopts D 180cm bored pile foundation. Pile caps and tie beams are arranged at the top of the pile. According to the characteristics of constant water level and low water velocity, earth cofferdam is used for substructure construction; And set up a full house support, pouring continuous box girder. Then calculate the quantities of each stage to determine the construction period of each stage of the project, analyze and compare the current construction conditions, and then revise and confirm. This process should be rigorous to ensure foolproof. The overall progress plan covers a wide range, which requires not only close cooperation with internal functional departments, but also contact with subcontractors, supervisors and corresponding departments to make the overall progress plan more reasonable, thus affirming the implementation of the project and promoting the timely completion of the construction progress. The total construction schedule should be adjusted according to the construction situation of the project after the preliminary preparation, and then the schedule should be arranged according to the time limit for a project, so that the line crossing the positive sequence and the reverse sequence is the key line, and then the affected part should be found out for adjustment, so that the resources can be adjusted. In the plan, there will inevitably be resource consumption, which will meet the requirements of supply. For the commencement and completion time of the bridge project, we should strictly control the progress. To control the progress, we must carefully prepare the construction, such as Hengyang steaming water? Hechuang Bridge is an engineering project. Before construction, technical preparation, material reserve, labor organization, construction site inspection and off-site preparation should be done well, which plays an important role in rational utilization of resources, improving construction progress, improving engineering quality and construction safety. This link is an important link to ensure that the project can be carried out as planned, so we should attach great importance to this link. As the saying goes, the plan can't keep up with the changes, so we should always supervise the project and consider whether the manpower and material resources used can meet the requirements of the project, whether the basic working procedures are reasonable, whether the construction technology and equipment are perfect, and whether the state is kept in the best state, such as Hengyang distilled water. Hechuang Bridge is a bridge construction project, which is carried out on the steaming river. To ensure the safety and feasibility of the construction, then the transportation of the required materials should be carried out in accordance with the pre-planned transportation corridor. It is also necessary to ensure that the operation level of workers is professional, the analysis of workspace and so on when recruiting workers. The end of the project is whether we have set aside time to clean up the construction site, so that our project can be well received by the general public and enhance the credibility of the construction team. It is also important to pay attention to whether the required materials and labor are within the supply plan. The project progress plan should form a strict overall system, step by step, completely and comprehensively explain, and there should be correlation between plans at all levels. The project manager and the construction team should sign a contract separately, define the contract period according to the planned objectives, and ensure that the construction of each project can be completed within the planned time range on the premise of mutual commitment and consistent rights and responsibilities. Coordination in the construction process can not be ignored, and it is the command core of schedule adjustment. Bridge construction projects need to pay attention to more conditions than on the ground, and there are many aspects to be considered. In addition, the particularity of bridge construction is particularly affected by the external natural environment. Before construction, these influencing factors should be carefully considered, and then corresponding countermeasures should be formulated to ensure the safety of the construction process, the completion time is within the plan, and the subsequent cleaning work is easily overlooked. With the continuous development of science and technology, China now has advanced 3D technology. Combining tradition with science and technology, the bridge construction in China will also transform by going up one flight of stairs.
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