1944年诺曼底登陆之后，美军发现他们的行动受到法国北部乡下延绵、密实的篱笆墙的限制。
After the Normandy invasion in 1944, American troops found that their movements were constrained by the thick hedgerows that lined the countryside of northern France.
为研究自密实混凝土板墙加固低强度砂浆砖砌体的抗剪性能，共做了6个墙体加固试件。
The shear behaviors of the low strength brick masonry wall strengthened with the self-compacting reinforce concrete wall have been discussed by 6 experimental models.
高频液压振动锤除可作各类承载桩的施工外，还可以建造薄壁防渗墙，深层密实处理，地面夯实处理等特殊施工。
Besides piling, can be applied to special fields such as building thin anti-seeping walls, deep density treatment and ground compact improvement treatment.
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