《梦溪笔谈·权智》
雷简夫为县令，于是让人各在巨石下挖一坑穴，估计坑穴已像巨石那样大，就拉动巨石填入坑穴而窖起来，水患遂平息。
雷简夫为县令，乃使人各于石下穿一穴，度如石大，挽石人穴窖之，水患遂息也。
Lei Jianfu was the magistrate of the county and ordered people to dig pits under the giant rocks; when the pits were as large as the rocks, the rocks were dragged into them and the pits were sealed up; thus, the flooding was stopped.