Research Progress on Post Cast Strip Construction Technology of Super Long Concrete Structure

The construction technology of post cast strip seriously affects the construction quality and structural safety. The current specifications do not give uniform and clear provisions on the width of post cast strip. This paper briefly expounds the current situation, advantages and disadvantages of post cast strip construction, and compares and analyzes the construction processes, applicable conditions, advantages and disadvantages of fast and easy closing net, inflatable core formwork and bubble membrane formwork; Wang tiemeng model is used to calculate the effect of post cast strip width on concrete shrinkage on both sides. The results show that the post cast strip width has little effect on shrinkage. The post cast strip construction technology of PVC pipe is proposed, which can improve the construction quality and realize green construction. Therefore, combined with the innovative post cast strip construction technology and specific working conditions, its width can be set optimally.