水准测量法的主要技术要求是：①各等级的水准点，应埋设水准标石；②水准点

水准测量法的主要技术要求是：①各等级的水准点，应埋设水准标石；②水准点应选在土质坚硬、便于长期保存和使用方便的地点；③墙水准点应选设于稳定的建筑物上，点位应便于寻找、保存和引测；④一个测区及其周围至少应有三个水准点；⑤水准点之间的距离，一般地区应为1～3 km，工厂区宜小于1 km；⑥水准观测应在标石埋设稳定后进行；⑦两次观测高差较差超限时应重测；⑧二等水准应选取两次异向合格的结果；⑨当重测结果与原测结果分别比较，其较差均不超过限值时，应取三次结果的平均数。

水准测量法的主要技术要求是：①各等级的水准点，应埋设水准标石；②水准点应选在土质坚硬、便于长期保存和使用方便的地点；③墙水准点应选设于稳定的建筑物上，点位应便于寻找、保存和引测；④一个测区及其周围至少应有三个水准点；⑤水准点之间的距离，一般地区应为1～3 km，工厂区宜小于1 km；⑥水准观测应在标石埋设稳定后进行 ；⑦两次观测高差较差超限时应重测；⑧二等水准应选取两次异向合格的结果；⑨当重测结果与原测结果分别比较，其较差均不超过限值时，应取三次结果的平均数。

The main technical requirements of leveling method are as follows: ① the leveling mark stone should be embedded for each grade of bench mark; ② the bench mark should be selected in the place with hard soil and convenient for long-term preservation and use; ③ the wall water standard point should be set on a stable building, and the point position should be easy to find, preserve and survey; ④ there should be at least three leveling points in a survey area and its surrounding; ⑤ the distance between the benchmarks It should be 1-3 km away from the general area, and less than 1 km in the factory area; 6) leveling observation should be carried out after the MARKSTONE is buried stably; 7) when the height difference difference between the two observations exceeds the limit, it should be retested; 8) the second-class leveling should select the results that are qualified in different directions; and (9) when the re measurement results are compared with the original measurement results, and the difference is not more than the limit value, the average of the three results should be taken.<br>