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由于多种原因,龙滩大坝12、13、20、21号4个坝段曾先后出现碾压混凝土个别部位层间缝渗水问题。参建各方慎重、反复研究后,及时对层间缝进行了灌浆补强等,经压水检查、取芯、孔内录像及声波测试后,证明处理效果良好。发生的费用采取风险共担、协商解决,按实际发生的各项目工程量及合同原则计算并经审计单位审核后给予承包人部分补偿。
Due to various reasons, the seepage problems of interlayer cracks in some parts of RCC have occurred successively in 4 dam sections of 12, 13, 20 and 21 of Longtan Dam. All parties participating in the project were cautious. After repeated studies, timely grouting reinforcement was carried out on the interlaminar seams. After water pressure examination, coring, video recording and sound wave testing in the hole, the treatment effect was proved to be good. The costs incurred shall be shared by risk and shall be settled through negotiation. The amount of each project actually incurred shall be calculated in accordance with the contractual principle and be partially compensated by the contractor after being audited by the auditing unit.