With the rapid growth of the contemporary economy, the use of complex construction projects is gradually increasing, and the use of rotary drilling piles is becoming more and more frequent in various construction projects. Rotary drilling piles are a term for the technique of rotary drilling and grouting piles in engineering, which usually refers to pile types that are stopped from construction by rotary drilling rigs. As a latest construction method, rotary pile construction is generally welcomed by all parties for its low safety and danger, strong geological compliance, and fast drilling rate. However, in addition to this, it requires high skills and strong concealment, making it difficult to cooperate together. These are also one of the concerns of all parties. It is necessary for us to strengthen the management of the project, ensure the quality of pre mixed concrete, and improve the pouring degree of underwater concrete, so as to ensure the construction quality of rotary excavation piles.
2 Rare Quality Achievements
2.1 Analysis of the current situation of construction techniques for rotary excavation piles
Compared with traditional manual pile excavation techniques, the efficiency of rotary pile excavation is not only many times faster, but also safer in terms of construction safety, as it fundamentally does not involve the safety of workers' industrial lives. In some areas of Guangdong, the terrain is mostly hilly, which requires high demands for pile excavation techniques and offers a wide range of choices. However, the construction technique of rotary pile excavation has gained recognition from the Guangdong authorities in these areas, mainly due to its low environmental pollution and advanced pile excavation efficiency. And in the future, many urban and rural construction and housing projects in Guangdong will use the construction technique of rotary excavation piles
2.2 Rare technical achievements in rotary pile construction
2.1 Easy to be constrained by construction soil layers
The rotary drilling rig relies on the rotation of the drill bit to complete the rock breaking mechanism, and the soil quality where the construction is stopped will affect the progress of the construction. On a daily basis, rotary drilling machines are more practical in soil and sandy rock formations, but their construction and utilization efficiency in cohesive soil layers is definitely lower. Therefore, if construction is carried out on sites with a high content of gravel or extremely hard and soft soil, the construction personnel must implement unrelated adjustments to ensure smooth drilling of pile holes.
2.2 High mechanical maintenance cost and long duration
The price of purchasing rotary drilling rig equipment is relatively high, and the rotary drilling rig has unlimited time to operate when it stops working at full load. In addition, in the rotary drilling rig, replacing the damaged machine will cost an absolutely high amount of money. Not only does it take a long time for its training, which greatly affects the construction progress. We all know that the drill bit is the most easily damaged equipment during drilling operations. Therefore, when construction stops, it is necessary to prevent the drill bit from drilling into soil with strong soil or abundant gravel. The personnel who stop construction must strictly follow the construction plan and operate the rotary drilling rig properly.
