Principles to be followed in winter construction of wind power foundation projects
The orderly development of winter construction technology of wind power infrastructure projects not only requires technicians to clarify the key points and difficulties of winter construction technology of wind power infrastructure projects, but also to sort out their own work from the perspective of principle framework, in order to improve the ways and means of implementing winter construction technology of wind power infrastructure projects and build a scientific and efficient brand-new wind power infrastructure project model.
The winter construction of wind power foundation projects should follow scientific principles.
The construction of technical system for winter construction of wind power infrastructure projects should fully embody the scientific principle. Only by seriously and comprehensively considering the main process and basic requirements of winter construction technology of wind power infrastructure projects and the key and difficult points of quality control of concrete raw materials of wind power infrastructure projects, can the operation mode of winter construction of wind power infrastructure projects be guaranteed to meet the actual requirements to the maximum extent. Only under the guidance of scientific spirit, scientific means and scientific concept can technicians build a new technical system for winter construction of wind power infrastructure projects on the basis of existing technical resources.
Practical principles that must be followed in winter construction of wind power foundation projects
Due to the diversity of winter construction technology of wind power foundation project, there are many operation links. In order to adapt to this reality, it is necessary to improve the fault tolerance rate of winter construction technical scheme of wind power infrastructure projects and reduce the influence of external environment on winter construction technical activities of wind power infrastructure projects [2]. Reduce the difficulty of operation, work in batches in a short time, and ensure the smooth development of winter construction technology of wind power infrastructure projects in all links.
Greenhouse construction and heating operation
The application of winter construction technology in wind power infrastructure projects requires construction workers to build greenhouses efficiently under the framework of scientific principles and practical principles, and form a good temperature environment with the help of the thermal insulation function of greenhouses to avoid the adverse impact of low temperature environment on related construction activities during construction. From the actual situation, in the development and construction of wind power infrastructure projects, it is necessary to judge the construction time and location of greenhouses according to the temperature in winter. At the same time, in order to ensure the concrete building value, color steel board houses can be set up in the concrete mixing station and necessary insulation treatment can be carried out. In addition, a greenhouse will be built on the foundation. Taking the construction of wind power foundation project in Northeast China as an example, a certain number of scaffolding can be set up near the foundation pit as the skeleton of the greenhouse before construction. In order to maintain the stability of the greenhouse framework, it is necessary to adjust the spacing of scaffolding and use shear support outside the framework to make the structural strength of the greenhouse meet the actual use requirements and avoid the adverse impact of windy weather on the structural stability of the greenhouse [3]. In the process of greenhouse construction, it is also necessary for construction workers to treat the ceiling skeleton and use 2 1 woven canvas as the greenhouse ceiling to enhance the thermal insulation performance of the greenhouse. In order to enhance the practicability of greenhouse, a tunnel should be built at the exit of foundation pit to provide necessary space for personnel and equipment to enter. For the underground leopard print part, the construction of the underground part of the greenhouse can be completed before the foundation pouring is completed, and after the construction of the underground part is completed, a smokeless coke heating furnace is set to further increase the temperature in the greenhouse, so as to keep the temperature in the greenhouse within a reasonable range and avoid the adverse impact of low temperature on the operation activities of construction equipment.
Problems needing attention in steel bar construction of wind power generation foundation
During the winter construction of steel bars for wind power foundation, constructors need to comprehensively analyze the problems existing in steel bar construction under the framework system of practical principles, and adjust the steel bar construction activities by various technical means. For example, after the steel bars of the wind power foundation project enter the construction site, they need to be stacked and covered with double-layer flame-retardant grass curtains as required to ensure that the steel bars are not in contact with ice and snow. Judging from previous construction operations, the temperature range of cold-drawn steel bars should be above minus 20℃. Therefore, in winter construction, in addition to the necessary temperature control, the stress should be controlled within a reasonable range as required. In the process of steel bar construction, once the temperature inside the shelter is found to be too low, it is necessary to use a heater for heating treatment to ensure that the steel bar construction activities can be carried out in an orderly manner [4].
Formwork and concrete construction method
The construction method of laying bricks and laying steel moulds in winter construction of wind power foundation project can really improve the overall thermal insulation performance of wind power foundation project. In order to further reduce the adverse effects of low temperature factors, effective measures need to be taken in the formwork construction stage. For example, in the wind power foundation project, the formwork installation should be carried out in the thermal insulation shed, and the interior of the thermal insulation shed is heated by a heating furnace to create a good temperature environment for formwork construction. When the temperature of the formwork and insulation layer reaches 5℃ required by the construction, the formwork can be removed. During the demolition process, the difference between the concrete temperature and the ambient temperature should be greater than 20℃ before the subsequent demolition work can be carried out. In the process of concrete mixing, slag cement should be selected, the cement grade should be controlled at 42.5, and the water cement ratio should be less than 0.6. This ensures that the specific construction activities can meet the actual use requirements, meet the objective requirements of wind power infrastructure development activities, and lay the foundation for the subsequent wind power infrastructure construction activities [5].
The application of winter construction technology in wind power infrastructure projects is an all-round process. Based on the comprehensive analysis of the principles followed in the construction activities of wind power infrastructure projects in winter at this stage, this paper takes scientific principles and practical principles as the basic framework and starts from multiple dimensions to effectively build greenhouses and form the necessary thermal insulation system. At the same time, optimize the reinforcement construction activities and formwork construction methods to create conditions for the orderly development of subsequent construction activities.
For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd