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1 前言 引黄济青工程输水河(明渠)全长253km,由于输水河全线的工程地质、水文地质和输水河的运行条件相当复杂,因此,为了满足输水河防渗、护坡、减少糙率的要求,分别采取了不同型式的衬砌,提高了引黄济青全河的输水效率。但在输水河的运行过程中,输水河衬砌经常发生破坏,渗透破坏是造成衬砌破坏的主要原因之一,本文介绍了一例。2 输水河衬砌破坏的原因分析2.1 输水河村砌原设计情况 王耨泵站上游,144+839～145+879(竣工后桩号),该段输水河为深挖方,输水河采用复式断面,输水河衬砌原
1 INTRODUCTION The Yellow River water diversion project (Yinchuan) is 253km in length. Due to the complexity of the engineering geology, hydrogeology and the conditions of water conveyance river, the water diversion river seepage prevention, slope protection, Rate requirements, respectively, adopted a different type of lining, improve the Yellow River diversion of water efficiency. However, during the operation of the water conveyance river, the lining of the water conveyance river often breaks down. The penetration damage is one of the main causes of the lining damage. This article introduces an example. 2 Analysis of the reasons for the destruction of the water conveyance river lining 2.1 The design of the original waterway river brickwork Wang 耨 Upstream of the pumping station 144 + 839 ~ 145 + 879 (after completion of the station), the water conveyance river is a deep excavation side and the water conveyance river The use of duplex sections, water river lining the original