Through the knowledge collation of architectural knowledge column of this website, the basic situation of highway slope protection by Zhong Da Consulting is summarized as follows:
Slope is an important part of highway engineering, and the overall effect of slope protection directly affects people's overall evaluation of highway. At present, there are many forms of slope protection in China, which can be divided into vegetation protection, engineering protection and comprehensive protection combining the two.
According to the related contents, the general highway slope protection includes: masonry slope protection, skeleton vegetation protection, hanging net shotcrete slope protection, geocell vegetation slope protection, shotcrete vegetation protection and other highway slope protection methods. The basic overview is as follows:
Mortar rubble slope protection
Mortar rubble slope protection is the most widely used slope protection method in engineering, which mainly includes rubble slope protection and rubble retaining wall. Mortar rubble slope protection can prevent the slope from being washed by rain, and it also has a certain stabilizing effect on the slope. Retaining wall is a slope cover made of mortar rubble, which is used to close all kinds of soft rock strata and break excavation slopes, and is mostly used in strongly weathered soft rock strata and broken rock sections such as easily weathered mica schist, chlorite schist, argillaceous limestone and phyllite to prevent further weathering. It can effectively prevent slope erosion, sliding, flowing and rockfall slope collapse, and is the most common form of protecting the upper slope. The retaining wall does not bear other loads except its own weight, nor does it bear the earth pressure behind the wall, so the excavated slope protected by the retaining wall should meet the requirements of extremely stable slope. The construction technology of masonry slope protection is simple and it is a common form of slope protection. However, due to its single form and poor coordination with the environment, its application in modern highway slope protection tends to decrease.
Skeleton vegetation protection
Skeleton vegetation protection is a widely used method at present. Compared with mortar rubble slope protection, this method can not only meet the function of slope protection, but also save materials and reduce the project cost. For high slopes, it can also reduce the slope load, and plant turf in the grid to better coordinate the surrounding environment, so it is widely used in slope protection projects. Skeleton can take many forms, such as arch, herringbone, diamond, rectangle, etc., but the form and scale of skeleton should be considered more from the aspects of aesthetics and local cultural background. When you want to highlight the skeleton, the skeleton structure should be fine. Vegetation protection in the frame can be combined with the geotechnical properties and slope ratio of the slope, and the above various vegetation protection measures can be adopted. In general, the vegetation protection of mortar rubble or concrete skeleton and polygonal concrete hollow block is suitable for soil, fully weathered and strongly weathered rock slopes with slope ratio less than 1: 0.75.
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