【摘要】 从温度、垂向流和流向三个方面分析马家沟水库大坝河床段沥青混凝土心墙的渗漏情况。依据ZK6孔有强烈的流水声,坝体段温度示踪曲线与库水温度随深度增加而降低的规律完全一致,孔中以水平流为主,同时还存在向下的垂向流,得出了ZK6孔附近心墙发生了裂缝性渗漏;根据坝体内地下水流向异常状况,得出ZK7与ZK7 1之间、ZK7 2与ZK8之间的心墙上分别存在裂缝性渗漏部位的结论。更多还原

【Abstract】 <Abstrcat>Analyzes the leakage from the asphalt concrete core wall on the river-bed section of Majiagou reservoir from the aspects of temperature, vertical current and current direction. The cracking leakage from core wall nearZK6 is concluded on the facts that strong water streaming can be heard in ZK6, that the temperature curve the dam body follow the same rule with relationship between the water temperature and depth, i.e. water temperature decreases with increasing of depth, and that the current in the hole is mainly horizontal and meantime downward vertical current exists; the abnormal underground water flowing direction inside the dam body indicates the cracking leakage on core wall sections between ZK7 and ZK7-1, and between ZK7-2 and ZK8.更多还原