Immersed tube slotting underwater installation is an important construction process in underwater engineering, which is mainly used for underwater opening in concrete pools. This technology plays an important role in the construction and maintenance of underwater structures. Below, we will introduce in detail the construction process and precautions of immersed pipe slotting underwater installation (underwater opening of concrete pool).
1. Construction preparation.
Before starting the underwater installation of immersed tube slotting, sufficient construction preparation is required. First of all, it is necessary to survey the construction area to understand the water depth, flow rate, water quality, etc., so as to formulate a suitable construction plan. Secondly, prepare the required equipment and materials, including immersed tubes, grooving machines, water pumps, etc. At the same time, it is necessary to ensure that the skills and safety awareness of construction personnel meet the requirements and carry out necessary safety training.
2. Immersed tube installation.
Immersed tube installation is the first step in the underwater installation of immersed tube slotting. First, the length and diameter of the immersed tube are determined according to the construction plan, and then the processing and fabrication of the immersed tube are carried out. During the installation of the immersed tube, it is necessary to ensure the stability and verticality of the immersed tube to avoid deviation or tilt. At the same time, it is necessary to pay close attention to the situation in the sinking process of the immersed tube, and adjust the sinking speed and direction in time.
3. Slotting construction.
After the installation of the immersed tube is completed, the slotting construction begins. First of all, use a slotting machine to open the corresponding notch on the immersed tube according to the design requirements. In the process of grooving, it is necessary to ensure that the size and position of the notch are accurate, and at the same time, it is necessary to pay attention to the structural safety of the immersed tube. After the grooving is completed, the debris and stagnant water in the notch should be cleaned up in time.
Fourth, underwater concrete pouring.
After the underwater opening is completed, the underwater concrete is poured. During the pouring process, it is necessary to ensure that the mix ratio and fluidity of the concrete meet the requirements, so that it can be poured smoothly into the notch. At the same time, it is necessary to control the pouring speed and vibration strength to ensure that the compactness and strength of the concrete meet the design requirements. After the pouring is completed, it is necessary to carry out maintenance and protection in time to avoid cracks or leakage and other problems.
5. Precautions.
In the process of underwater installation of immersed pipe slotting (underwater opening of concrete pool), the following points need to be noted:
1.During the construction process, it is necessary to pay close attention to the weather and hydrological conditions to avoid the impact of bad weather on the construction.
2.It is necessary to ensure that the quality and performance of construction equipment and materials meet the requirements to avoid failures or quality problems.
3.During the construction process, it is necessary to strictly abide by the safety operation procedures to ensure the safety and health of the construction personnel.
4.When pouring concrete, it is necessary to control the mix ratio and fluidity of concrete to avoid quality problems.
5.In the construction process, it is necessary to do a good job of recording and testing, find and deal with problems in a timely manner, and ensure the quality and safety of construction.
In short, immersed tube slotting underwater installation (underwater opening of concrete pool) is a complex and important construction process, which requires strict compliance with construction specifications and operating procedures to ensure construction quality and safety. At the same time, attention should be paid to details and problem handling during the construction process, so as to provide a reliable guarantee for the subsequent construction and maintenance of the structure.