| 井筒的安装 |
| 添加时间：2019/12/9 13:40:33 浏览次数： |
| 井筒的安装： Shaft installation: 1、井筒的长度应为井座连接井筒的承口底部至设计地面的高度，再减去井筒顶至地面的净距。当地面或路面标高难以精确确定时，井筒长度可适当预留余量。 1. The length of the shaft shall be the height from the bottom of the socket connecting the shaft seat to the design ground, and then the net distance from the top of the shaft to the ground shall be subtracted. When the elevation of the ground or road surface is difficult to determine accurately, the length of the shaft can be properly reserved. 2、井筒插入井座应保持垂直。井筒插接时，不得使用重锤敲打，应采用专用收紧工具。 2. The shaft shall be inserted into the well seat vertically. When inserting the shaft, heavy hammer shall not be used for knocking, and special tightening tools shall be used. |
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