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With the social and economic development, human ecology and environmental protection become increasingly concerned about the river's function is not limited to flood, drainage, water storage, clear guidelines, shipping, should also include landscape, travel, and ecology. Therefore, the channel slope by slope protection ecological imperative. At present, the flood control project armor common form of mainly three types: one is concrete, asphalt concrete, made of mortar and stone and other anti-erosion of rigid body armor, one is made of loose rubble scattered anti-erosion armor, one is made of geotextile fabric or mesh of flexible body armor against erosion. The first surface protection costs higher, there is no ecological function, the boundary deformation on the canals and less adaptable easily lead to destruction of the local structure of soil loss, causing further fracture failure; second surface protection can better adapt to the boundary deformation However, surface protection and abrasion of the stability rules are less capable, do not have the ecological functions; third type of surface protection permeability, with ecological protection, but most of the mesh fabric or protective pad only for the survival of vegetation to provide solid soil effect, coverage is not easy to ensure the safety scour [3].
New eco-chain block erosion control system is a chain-type system of precast concrete block paving, chain slope protection system is a set of size, shape and weight of the same precast concrete blocks, through mutual engagement (internal use rope to connect with each other) to form chain-type matrix. Chain-type concrete blocks, there are two main types: a central hole type and intermediate closed, two types of concrete blocks have different sizes and thicknesses to suit various water conditions. Domestic water flood riverbank protection works are concrete interlocking blocks internal connection for more than a rope system, only through the bite block formed between (see Figure 1,2). As the chain block is a new type of slope protection, application time is short, it is necessary to study the mechanical properties.