Classification of structure types of protection measures for rivers and lakes and embankments

    Under normal circumstances, the slope protection form of the filter layer is mainly divided into three layers, from top to bottom: block stone or concrete protection layer; cushion; filter layer close to the soil structure. According to the structure type classification of river and lake embankment protection measures, we can take the following two protection measures:

 (1) Specific protection measures.

 First, we must thoroughly clean up the debris on the slope protection surface of rivers and lakes, and carry out the slope protection treatment according to the design requirements, and then lay a layer of geotextile on the slope protection; Sand layer, and then another layer of geotextile on the sand layer; finally, we need to spread a layer of fine sand on the geotextile, and then pour concrete inside. In the process of pouring concrete, the construction personnel should pay attention to leaving a certain gap between the two concrete slabs, so that the cement mortar can be filled later, and on the other hand, it can also ensure that the slope protection has a drainage function.

(2) Block stone protection measures. 

The main measures are as follows: a. Thoroughly clean up the debris on the surface of the bank slope, and then perform slope protection treatment according to the design requirements, and then spread a layer of fine sand on the surface; b. Lay a geotextile on the fine sand and a layer on the surface of the geotextile Good gravel. In the process of selecting gravel, the construction personnel must require that its particle size is within 5 cm, so that the gravel will not be drilled into the geotextile; c. Pave a layer of boulders on the surface of the gravel. During the paving process, the construction personnel must ensure that the surface is smooth.

 From the geotechnical engineering data recorded in the past in my country, it can be seen that the construction personnel at that time had already achieved success in the geotechnical protection engineering, that is, using geotextile as a filter layer, which can protect the embankment from running water and have drainage Function.