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鲇鱼山东干渠双竹园高填方段总长近600m,1991年底信阳市鲇鱼山灌区续建改造工程指挥部对该段干渠进行了标准化整修,整修后最大堤高达13.5m。1992年夏季灌溉期间,由于该段土堤回填质量差,渗水严重,致使该填方段左堤近400m 外坡整体下滑。为了对该滑坡进行治理,首先解决渠堤渗漏问题,指挥部决定对该高填方段左堤进行灌浆处理。1 灌浆施工①灌浆前在该渠段上下游(渠内)各填筑一道围堰,排空该渠段内积水,降低渠堤土壤含水量;②孔位布置:沿渠堤坝轴线偏上游0.5m处直线单排布孔,孔距2m;③钻孔:采用干钻法,
The total length of the high-fill section of the Shuangzhulv area of the main channel of the anchovy in Shandong Province is nearly 600m. The headquarters of the reconstruction project of the Mianyuashan Irrigation Area in Xinyang conducted a standard renovation of the main channel at the end of 1991 and the maximum embankment reached 13.5m after the renovation. During the summer irrigation in 1992, due to the poor quality of backfilling of the embankment and serious water seepage, the entire outer slope of the leftover embankment near the 400-meter embankment declined. In order to control the landslide, the first to solve the problem of canal leaking, the headquarters decided to grout the left bank of the high-fill section. 1 grouting construction ① Before grouting in the upper and lower reaches of the canal (canal) to fill a cofferdam, emptying the drains within the water, reducing the dike soil moisture; ② hole layout: along the dike upstream axis 0.5m at a single linear arrangement of holes, hole spacing 2m; ③ drilling: dry-drilling method,