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上海宝钢江运水渣码头地下输送皮带通廊-6.90米处的沉降缝,因地基失稳,造成止水带拉裂、漏水、涌砂现象。具体处理方法如下。1.横向沉降缝的处理在止水带被拉裂处,分别安置长350毫米的13毫米管,顺拉开点插入橡胶止水带的下面,灌筑水泥水玻璃浆液,进行基础充填加固,即从止水带内侧向地基土方向进行地基处理,以提高地基承载力。接着,在止水带上部埋置化学浆灌浆嘴,灌筑821-BF遇水膨胀弹性泡沫塑料。BF浆液的灌入,不仅使裂缝填充密实,把水排斥在止水带外侧,使其不得流入通廊,而且
Sedimentation joints at -6.90 meters from the underground conveyor belt corridor at the Shanghai Baosteel Jiangyun Steel Slag Terminal resulted in cracks, water leakage, and gushing due to unstable foundations. The specific processing method is as follows. 1. Treatment of transverse settling seams Where the waterstops are pulled and cracked, 13mm long tubes of 350mm in length shall be placed respectively. Insert the waterstop below the rubber waterstops and fill the cement waterglass slurry to perform basic filling and reinforcement. That is, the ground treatment is performed from the inside of the water stop to the foundation soil to improve the bearing capacity of the foundation. Next, a chemical pulp grouting nozzle was embedded in the upper part of the waterstop, and 821-BF water-expandable elastic foam was poured. The infusion of BF slurry not only fills the cracks and fills the water outside the water stop, preventing it from flowing into the corridor.