Characteristics of High Slope and Advantages of Self-Drilling Hollow Bolt Support
by Anna S. Optimization SpecialistIn 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 162 times.