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莲花水电站１、２号洞处在３号正长斑岩脉穿过地段，由于成组较密节理构成屋脊形组合和支护措施不力，都产生了较大塌方，塌方的特点是先从两侧洞壁成组屋脊形组合面开始失稳和小的坍塌，后发展至全段洞顶较大塌方。塌方的工程处理，２号洞塌方段，从下游塌方边界向上游分２ｍ一段进行喷锚网支护；１号洞塌方段，从两边墙向上打锚杆，一直打至洞顶中部，自下而上喷一层素混凝土，再挂网喷混凝土，作喷锚网支护，都取得了成功，其中１号洞塌方的治理方法效果较好。
The No.1 and No.2 caves of Lianhua Hydropower Station are located at the site of No. 3 positive porphyry veins passing through the lot. Due to the combination of ridge joints and ineffective support measures, The set of ridge-shaped composite surface of the side wall began to instability and small collapse, and later developed to a larger cave collapse. Collapse of the project processing, No. 2 cave landslide section, from the downstream landslide boundary to the upstream 2m spray anchor network support; 1 cave collapse section, bolt up from both sides of the wall hit the wall, has been hit to the middle of the roof, from below Spray a layer of plain concrete, and then netting sprayed concrete, spray anchor net support, have achieved success, including No. 1 cave landslide better effect.