Characteristics of High Slope and Advantages of Self-Drilling Hollow Bolt Support

by Anna S. Optimization Specialist

In various construction projects, we often encounter various high slopes. Both the characteristics of high slopes and their support method require specific considerations. So, what are the characteristics of high slopes? What are the advantages of the currently popular self-drilling hollow bolt support in high slope reinforcement projects? Today, Sinorock will introduce what you are considering to you.

What Are the Characteristics of High Slopes?

The high slope is a man-made engineering facility, and its stability is mainly determined by many factors, such as the stability of the natural slope, the geological conditions, and the degree of artificial transformation. Therefore, the stability of high slopes can be said to be very unstable.

The stability of the natural slope is determined by different strata, lithology, and weathering degrees. Due to the different geological structures and hydrological conditions of each slope, various forms of slopes are formed under the action of natural forces, and the stability is also very different.

The high slope is the transformation of the natural slope. Through human factors, the stress state and hydrological conditions of the natural slope have been improved, and the purpose of stabilizing the slope is achieved through support construction.

Design Principles of High Slope Support Scheme

1. Safe and reliable: From the perspective of service life and protection objects, the prevention and control of high slopes must be safe and reliable.

2. Gradient governance: There should be different prevention and control schemes and principles for high slopes of different heights. For example, below 40m, the slope rate should be stable; above 40m, the support reinforcement should be the main work, and the slope height should be reduced.

3. Pay attention to drainage: the design of the high slope prevention and control plan should fully consider the surface and underground drainage systems to reduce the impact of water on the stability of the slope.

4. The design of a high slope should fully consider environmental protection and beautify the environment.

Advantages of Self-Drilling Hollow Bolt Prevention Scheme

1. The self-drilling hollow bolt integrates drilling, grouting, and anchoring, with high construction efficiency, and is suitable for broken and difficult-to-form surrounding rock.

2. There is no need for casing wall protection in the construction of self-drilling hollow bolts, which can greatly improve the construction efficiency, shorten the construction period and reduce the overall cost of the project.

3. Compared with the conventional drill pipe, the self-drilling hollow bolt is equipped with a variety of drill bits, which can be selected according to the properties of different rock layers and soil during construction, which can improve the drilling efficiency.

4. The self-drilling hollow bolt is used with the excavation and modification drilling rig. The construction work area is large and the construction height is high, which can minimize the personal safety risk of the construction personnel.

Self-drilling hollow bolt is a new type of support material, which can perfectly replace the traditional ordinary hollow bolt, improve construction efficiency and reduce construction cost.

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Created on Aug 10th 2022 03:59. Viewed 132 times.

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