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过水堆石围堰应用块石护面,由于利用当地材科,施工较易,造价也较低,因而被广泛地采用。过水堆石围堰(图1)过水时,部份水流沿着下游坡面急剧下泄,能量不断增加;另部分水流渗入堆石体产生渗透力。因此,下游坡护面块石的稳定性就成为围堰能否正常工作的决定因素。本文仅就国外一些典型实例、护面块石稳定性试验成果以及对试验成
Application of rockfill cofferdam stone block face, due to the use of local materials, construction easier, lower cost, it is widely used. When the water flooding cofferdam (Figure 1) passes through the water, part of the water flows rapidly down along the downstream slope surface, increasing energy; and the other part of the water infiltration into the rockfill body to produce penetration. Therefore, the stability of the downstream slope retaining block stone becomes the decisive factor of whether the cofferdam can work normally. This article only on some typical examples of foreign countries, the stone block test results and the test into