小型水库放水洞除险加固措施

REINFORCEMENT MEASURES FOR SMALL RESERVOIR DISCHARGE TUNNEL

本文将以某小型水库放水洞工程为例,基于放水洞现状,分别从对放水洞工程安装进行检验复核,进而确认水库放水洞过水能力符合要求,但在高水位情况下,洞身衬砌混凝土在水流拉应力的影响下出现换向受拉破坏情况。为能够有效解决此问题,改善水库放水洞洞身受力情况,对帷幕灌浆加固技术进行分析介绍,并通过应用方案比选确认最佳水库放水洞除险加固措施,旨在为后续小型水库放水洞除险加固措施比选提供参考。

In this paper,taking a small reservoir drainage tunnel project as an example,based on the current situation of the water release cave,the installation of the water release hole project is inspected and reviewed,and then the water crossing capacity of the reservoir water release hole meets the requirements,but in the case of high water level,the concrete lined with the cave body is damaged by commutation under the influence of the tensile stress of the water flow.In order to effectively solve this problem and improve the force on the hole of the reservoir discharge hole,the curtain grouting reinforcement technology is analyzed and introduced,and the best reservoir drainage and reinforcement measures are confirmed through the application scheme comparison,which is intended to provide a reference for the subsequent comparison of the reinforcement measures of the small reservoir drainage hole.