CAJ | 학술논문

通过对富水水库坝基渗压水头观测资料的整理分析，结合工程地质和除险加固历史，得出了富水水库坝基渗压水头与一般水库大坝表现规律的不同，并分析了其原因。主河床段防渗墙前坝基渗压水头测值和变幅相比库水位有大幅降低，其原因是在原河床段采用黏土铺盖增加了渗径；防渗墙后坝基渗压水头测值及变幅相比墙前大幅降低，这是混凝土防渗墙和泥墙共同作用的结果；主河床段防渗墙后测点渗压水头测值比下游坝基渗压水头低，其原因是测点布置高程和位置不同；主河床部分测点坝基渗压水头低于下游水位，其原因是下游尾水渠的布置和压渗工程导致下游水面远离下游坝体，同时大坝上游铺盖、防渗墙防渗效果良好。这些异常情况是大坝特殊的加固措施和地质条件引起的，表明大坝防渗加固效果良好，运行安全。
통과대부수수고패기삼압수두관측자료적정리분석，결합공정지질화제험가고역사，득출료부수수고패기삼압수두여일반수고대패표현규률적불동，병분석료기원인。주하상단방삼장전패기삼압수두측치화변폭상비고수위유대폭강저，기원인시재원하상단채용점토포개증가료삼경；방삼장후패기삼압수두측치급변폭상비장전대폭강저，저시혼응토방삼장화니장공동작용적결과；주하상단방삼장후측점삼압수두측치비하유패기삼압수두저，기원인시측점포치고정화위치불동；주하상부분측점패기삼압수두저우하유수위，기원인시하유미수거적포치화압삼공정도치하유수면원리하유패체，동시대패상유포개、방삼장방삼효과량호。저사이상정황시대패특수적가고조시화지질조건인기적，표명대패방삼가고효과량호，운행안전。
On the basis of analyzing the observation data of Fushui dam foundation seepage pressure and the reinforcement history and geological da-ta,came to the conclusion that dam foundation seepage pressure of Fushui dam was different from the general change law and analyzed the reasons. Because of using clay blanket increased seepage path in the original riverbed segment,the measured values and amplitude of head drops before the cutoff wall significantly decreased than the reservoir water level. The measured values and amplitude of head drops before the cutoff wall significant-ly decreased than the data behind the cutoff wall. It was a synergy result of concrete cutoff wall and the mud wall. The measured values of head drops behind the cutoff wall in the main riverbed are lower than the downstream dam foundation seepage pressure,because the elevation and loca-tion of measuring points were different. Values of some stations in the main riverbed dam foundation were lower than the level of tail water. It was because that the arrangement of the downstream tailrace and seepage control project,leading to downstream water away from the downstream dam, meanwhile upstream dam blanket and cutoff wall had a good anti-seepage effect. The results show that those abnormalities are caused by the special reinforcement measures and geological conditions of Fushui dam and indicate that the dam seepage reinforcement has a good effect and the dam operates normally.