gravel layer

基本解釋

Melaleuca stone and gravel layer in some scene.
千層石造景有的層中夾礫石。
Consequently, the classification should be adjusted according to other engineering geological characteristics of the gravel layer.
因此需要參考礫石層的其它工程地質(zhì)特性對(duì)場地類別予以調(diào)整。
While the gravel layer is thick, the occurrence and development of the boiling of sand correspond to the model of hemispheric bottom hole which cheek by jaw with upper clay band;
當(dāng)砂礫石層較厚時(shí)，涌砂的發(fā)生、發(fā)展符合緊靠上覆粘性土層的半球形井底模型；

Filter material: layer of fine gravel used in slope stabilization structures that allows water to escape and retains soil particles.
UNESCO: L O S S A R Y