This article will introduce the characteristics, advantages, application scope and construction methods of the cast-in-place formwork of the cushion cap. Bearing cap cast-in-place formwork is a construction product used to fix formwork and support in high-rise buildings and bridges and other projects, and its quality and stability are very important for the safety and stability of the whole project. 
First, the characteristics of the cast-in-place formwork of the cushion cap.
The cast-in-place formwork of the cushion cap is made of high-strength materials, which has the characteristics of high strength, strong bearing capacity and good durability. At the same time, the cast-in-place formwork of the cushion cap is flexible in design and can be customized according to the needs of the project to meet the requirements of different shapes and sizes. In addition, the cast-in-place formwork of the cushion cap also has good thermal insulation performance and thermal insulation performance, which can effectively reduce energy waste and maintenance costs. 
Second, the advantages of the cast-in-place formwork of the cushion cap.
Cushion cap cast-in-situ formwork has the following advantages:
1.Improve the quality of the project: the cast-in-place formwork of the cushion cap is made of high-strength materials, which can effectively ensure the quality and appearance of concrete pouring and improve the quality of the whole project.
2.Speed up the progress of the project: the cast-in-place formwork of the cushion cap can be prefabricated in the factory, reducing the processing time on the construction site and speeding up the progress of the project.
3.Cost reduction: The cast-in-place formwork of the cushion cap has good durability and stability, which can effectively reduce the frequency and cost of maintenance and replacement.
4.Environmental protection and energy saving: the cast-in-place formwork of the cushion cap can be reused, reducing waste and pollution, and its good thermal insulation performance can effectively reduce energy consumption. 
Third, the application scope of the cast-in-situ formwork of the cushion cap.
Cushion cap cast-in-situ formwork is mainly used in the following fields:
1.Bridge engineering: the pier abutment, bridge deck and other parts of the bridge need to use the cast-in-place formwork of the cushion cap.
2.Construction engineering: The bottom load-bearing structure and basement of high-rise buildings need to use cast-in-situ formwork for cushion caps.
3.Water conservancy engineering: The concrete pouring of water conservancy facilities such as dams and reservoirs requires cast-in-place formwork on the bearing platform.
4.Other engineering fields: such as rail transit, power facilities and other engineering fields that need to use cast-in-place formwork for cushion caps. 
Fourth, the construction method of the cast-in-situ formwork of the cushion cap.
The construction method of cushion cap cast-in-situ formwork mainly comprises the following steps:
1.Foundation treatment: The foundation of the construction site is treated to ensure that it is smooth and solid, so as to meet the installation requirements of the cast-in-place formwork of the cushion cap.
2.Formwork installation: The installation of the formwork is carried out according to the needs of the project, and the smoothness and stability of the formwork should be ensured to ensure that it can withstand the pressure of concrete pouring.
3.Reinforcement installation: After the formwork installation is completed, the installation and fixing of the reinforcement should be carried out to ensure that the position and spacing of the reinforcement meet the design requirements.
4.Concrete pouring: After the installation of the steel bar is completed, the concrete is poured to ensure that the mix ratio and quality of the concrete meet the requirements, and at the same time to ensure the uniformity and compactness of the concrete pouring.
5.Maintenance and demolition: After the concrete pouring is completed, appropriate maintenance and demolition work should be carried out to ensure the structural safety and stability of the concrete. 
V. Conclusions. As a necessary product in a construction project, the cast-in-situ formwork of the cushion cap is mainly used in bridges, construction, water conservancy, high-speed and other projects. It has the characteristics and advantages of high strength, high bearing capacity and good durability, which can effectively improve the quality of the project, speed up the progress of the project, reduce the cost and save the environment. In the construction process, it is necessary to operate in strict accordance with the construction method to ensure the structural safety and stability of the cast-in-place formwork of the cushion cap, and provide a reliable guarantee for the safety and stability of the whole project.