论文部分内容阅读
项管工程施工中高程测量一般用水平仪,这需要停止顶进工作进行。如果采用一种连通管测量高程的方法,可由顶管掘进工人直接操作,能随时测量顶前高程、校正掘进偏差和方便施工。具体步骤如下:1.在工作坑内打一标桩,并在标桩上测设一个固定高程。2.顶进一节2来管后,在管前分出两个腰线(管中高度),用红油
In the project management, the level measurement is usually used for elevation measurement. This requires stopping the jacking work. If a method of measuring the elevation with a connecting pipe is adopted, the workers can be directly operated by the top pipe excavation, and the top elevation can be measured at any time, the deviation of the excavation can be corrected, and the construction can be facilitated. The specific steps are as follows: 1. Play a stake in the work pit and measure a fixed elevation on the stake. 2. After jacking into one of the two tubes, separate two waistlines (height in the tube) in front of the tube and use the red oil.