1) pre-grouting from the shaft working face
立井工作面预注浆
2) condition pre-grouting at work face and grouting behind shaft lining
井筒工作面预注浆和壁后注浆
3) face pre-grouting
工作面预注浆
1.
Through blasting in grouting holes the cracks with low connectivity are penetrated successfully, then regular face pre-grouting is used to block effectively off heavy water-gushing.
通过注浆孔内爆破的方法,成功地将连通性很差的岩石裂隙贯穿,再采用常规的工作面预注浆方法将井筒特大涌水进行了有效封堵,探索出连通性很差的裂隙含水层注浆工艺的新路子。
2.
According to engineering examples,the paper introduces the experience that the face pre-grouting affects thick aquifer and large water inflow shaft water prevention and control construction,as well as the successful experience of using chemical grout for blocking water in the aquifers including tiny cracks and pores.
本文依据工程实例,介绍了工作面预注浆对厚含水层、大涌水量井筒施工防治水经验,并介绍了化学浆液在细微裂隙和孔隙发育含水层中注浆堵水的成功经验。
6) ground pre-grouting
地面预注浆
1.
Using directional technology, the ground pre-grouting holes were bored into the goal strata along the "S" track to give room for freezing holes boring.
利用定向技术使得地面预注浆钻孔沿“S”形轨迹进入注浆目的层,让出井盘空间施工冻结钻孔,并应用高精度测斜技术和定向技术,使得冻结钻孔有效避开注浆套管,从而实现地面预注浆与冻结造孔工程完全平行作业,缩短建井准备工期。
补充资料：设备安装前的准备工作——设备的预装配与预调整
设备安装前的准备工作——设备的预装配与预调整 | ||
|
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条