摘要：
山东肥城矿业集团陶阳煤矿中三井田受徐灰、奥灰水威胁严重,为保障矿井安全开采,在- 550m 水平东大巷构建防水闸门一道,该防水闸门设计水压6.0MPa,属集团公司乃至全国承受压力最大防水闸门之一.防水闸门硐室浇注并养护结束后,采取连续与间歇式相结合的方式进行了壁后注浆,特别是对硐室接茬薄弱处进行了特殊处理,在注水试验前做了大量的准备工作,注水试验期间采取了有效措施,并取得了大量数据资料,该防水闸门注水耐压试验一次性试验合格,通过了集团公司专家组的验收.%The field 3 of Taoyang Coal Mine, Shandong Feicheng Coal Mine Group, was threatened by Xujiazhuang limestone and Ordovician limestone roack water seriously. In order to ensure the security of mine exploitation, in the-550 m level east main roadway, a new waterproof gate is constructed, whose design pressure is 6. 0 MPa, belongs to the group company and is the waterproof gate under the largest pressure in the country. Waterproof after pouring and curing of the chamber of the waterproof gate, back-filled grouting is carried out in a continuous and intermittent way, especially the connection weak place is processed specially, and a lot of preparation work before the water injection test have been done, effective measures during water injection test have been taken, and a large amount of data have been obtained,which make the waterproof gate pass the one-time test successfully, and guarantee the acceptance of the expert group of the company.
