Pipe jacking construction is a technology used in the construction of underground pipelines, and its core points involve many aspects, including engineering preparation, construction technology, personnel training, equipment selection, quality control, and environmental protection. Here's a breakdown of these core takeaways**::
1. Project preparation.
Engineering preparation is the first step in pipe jacking construction, which involves determining the construction schedule and budget, carrying out detailed surveys and surveys, and preparing materials and equipment. This phase of work is crucial for the smooth progress of the subsequent construction.
Second, construction technology.
1.Jacking technology: Jacking is a critical step in pipe jacking construction, involving the measurement of center and elevation as well as deviation correction. When measuring, it is necessary to make full use of the center pile, and correct the center deviation of the first section through the center line and center ruler. The elevation measurement is mainly to control the slope by measuring the front section of the first section of the pipe and the back end of the first section of the pipe. In the jacking process, if deviation is encountered, corrective measures need to be taken, such as jack correction method, so that the jacking resistance position and the jacking force position of the jack are on the same axis, by increasing the jacking force and overdigging on the opposite side of the bias, digging at the top until the deviation returns.
2.Tunnel excavation technology: Tunnel excavation is another important part of pipe jacking construction. During the excavation process, it is necessary to pay close attention to the changes in geological conditions and take corresponding technical measures to ensure construction safety.
3. Personnel training.
Pipe jacking requires highly specialized skills, so construction personnel must be fully trained and qualified. They need to have a deep understanding and mastery of pipeline materials, pipe jacking machinery, construction process, and safety precautions to ensure the quality and safety of construction.
Fourth, equipment selection.
Pipe jacking machinery is the core equipment of pipe jacking construction, and it is necessary to select appropriate machinery to complete pipe jacking construction. Machinery should have sufficient working capacity, flexibility and reliability to adapt to the construction needs of different geological conditions and pipeline types.
5. Quality control.
Quality control is a key link in pipe jacking construction. It is necessary to pay close attention to factors such as the degree of bending of the pipe, the quality of the interface, and the cleanliness of the inside of the pipe. Effective measures must be taken to control the quality of construction to ensure the safety and reliability of pipelines. This includes the development of strict quality standards and inspection procedures, as well as the use of advanced testing equipment and technology to ensure that the quality of construction meets the requirements.
6. Environmental protection.
Pipe jacking construction is carried out underground, which may have an impact on the surrounding environment, such as a drop in the water table, soil subsidence, etc. Therefore, appropriate control measures need to be taken during the construction process to prevent environmental pollution and damage. This includes measures such as rational planning of construction areas, reduction of construction noise and dust, and proper disposal of construction wastewater.
To sum up, the core points of pipe jacking construction involve many aspects, and it is necessary to comprehensively consider various factors and take effective measures to ensure the smooth progress of construction and reliable guarantee of quality.