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我局测量一队今年在某测区的控制测量工作中建造高钢标23座，全部采用混凝土预制板固定基脚代替传统的混凝土现场灌浇基层和固定层的方法，取得了良好效果。建成后，对22座在已知点上恢复觇标的点的检查结果，其圆筒中心和基板中心对标石中心的偏差一般在2～5公分，仅个别点偏心达7公分多，三心偏差总的来说是比较小的。九月十一日受八号强台风的侵袭，风力达九级多，于九月二十一日，二十二日对其中五点进行了投影检查，和台风前投影相比，两次投影偏差：三个16米觇标分别为8~(mm)、13~(mm)、17~(mm)，一个19米觇标为8~(mm)，一个12米觇标为91~(mm)。分析了12米觇标偏差大的原因是该点土质为沙土壤，质地松软，觇标建造时挖的橹柱坑深不足，坑底填石子较少，建后引起橹柱下沉。说明使用预制板建造觇标，在土壤较坚实的地区是可行的。在橹柱坑定水平时，要以最深的为基准，尽量做到不填虚土，基底应填石夯实，对位于土壤特别松软及水稻田中的觇标，应考虑灌浇基底层，或在坑底打一些木桩及适当加大预制板以防止觇标下沉。
Our bureau measured a team of 23 high-grade steel mills in control surveying work in a survey area this year, all using concrete prefabricated fixed foot instead of the traditional concrete pouring grassroots and fixed layer method, and achieved good results. After the completion of the 22 points in the known points to restore the test results of the test point, the center of the cylinder and the center of the center of the stone standard deviation of 2 to 5 cm, only individual points of eccentricity of up to 7 cm, three heart Deviations are generally small. On September 11, it was hit by Typhoon Signal No. 8 and its wind power reached more than 9. Projection was conducted at 5:00 on September 21 and 22, compared with the previous projection of the typhoon. Two projections Deviations: The three 16-meter markings are 8 mm, 13 mm and 17 mm respectively, a 19 mm mark is 8 mm, a 12 mm mark is 91 mm, ). The reason for the large deviation of 12m standard deviation is that the soil quality is sandy soil and the texture is soft. The pits and pits excavated at the time of construction are not enough, and there are few filling stones at the bottom of the pits, causing the pillars to sink. This shows that the use of prefabricated construction signs, in the soil is more solid area is feasible. In the pylorus pit level, to the deepest as a benchmark, try not to fill the soil, the foundation should be filled with stone compaction, located in the soil is particularly soft and rice paddies, should consider irrigating the basal layer, or at Hang some pits at the bottom of the pit and increase the precast slabs appropriately to prevent them from sinking.