4 characteristics in Deep Excavation Slope Support Engineering

1. Being more difficult
With a continuous development of economy and society, the demand for buildings’ structures and quality is becoming higher. At the same time, deep excavation engineering is also developing in the direction of large span, large depth and large area, which increases the difficulty of supporting deep excavation slopes.

2. Long construction period
Compared with common construction projects, slope construction of deep excavation is longer. It costs several months from excavation to engineering completion and acceptance. During this period, many factors influence the stability of deep excavation support, such as surrounding windrow, rainfall, mechanical vibration.

3. High regional requirements
Due to the large differences in hydrological and geological conditions in various places, this places high requirements on the distance control of nearby structures and the stability of the slope. So when designing and constructing, surrounding hydrology, geological condition and pipelines should be explored and checked carefully and then confirm supporting form and construction scheme.

4. Closely related to soil excavation
Deep excavation engineering consists of design and construction of soil excavation and slopes support system. Construction of soil excavation has a great influence on support quality.

Combined with the characteristics of deep excavation in slope support projects, self drilling anchor bolts can be used to solve construction problems. Self drilling anchor bolt combines drilling, grouting and anchoring together, with high efficiency and convenience. It has a small construction limit and can be operated in narrow area, bonding strength is good and supporting quality is high. So self drilling anchor bolt has good supporting effect in deep excavation slopes engineering.

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