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1 工程概况老虎洞水库位于郏县城西北15km的黄道乡境内,地处淮河流域沙颍河水系北汝河支流青龙河上游,控制流域面积43.3km~2,总库容2027万m~3。是一座以防洪、灌溉为主,兼顾水产养殖、城镇供水和旅游等综合利用的中型水库。水库始建于1958年3月,1959年6月竣工。2001年经河南省大坝安全鉴定,水利部大坝安全管理中心核准,老虎洞水库为三类坝。本次除险加固工程中坝基灌浆施工极为重要,施工项目有坝基砂卵石层高压旋喷灌浆和坝基基岩帷幕灌浆。其中桩号0+079.75～0+166.75段布置一排砂卵石层高压旋喷灌浆
1 Project Overview Tiger Cave Reservoir is located in the town of Huangdao, 15km northwest of Juxian County. It is located in the upper reaches of the Qinglonghe, a tributary of the North Ru River in the Shaying River System in the Huaihe River Basin. The control basin covers an area of 43.3km ~ 2 with a total storage capacity of 20.27 million m3. It is a medium-sized reservoir that is mainly flood control and irrigation, taking into account the comprehensive utilization of aquaculture, urban water supply and tourism. The reservoir was built in March 1958 and completed in June 1959. In 2001 by the Henan Provincial Dam Safety Appraisal, Ministry of Water Resources Dam Safety Management Center approved Tiger Cave reservoir for the three types of dam. The dam foundation grouting construction is extremely important during the reinforcement project. The construction projects include high-pressure jet grouting of dam foundation pebble bed and curtain grouting of foundation rock. Stakes 0 +079.75 ~ 0 +166.75 section of the arrangement of a row of high-pressure sand and gravel jet grouting