张道口短水准测线,位于天津市南部大寺公社梨白公路张道口至门道口之间,全长1050米,共16站,横跨白塘口西断裂,走向为北75°西,当地第四纪覆盖层厚度约1100米(图1)。 全部作业按照国家一等水准规范和地震台站规范(草案)进行。各项限差均符合规范要 Zhangdaookou short-water line survey, located in the southern temple of Daci in Tianjin Pear White Road from Zhangkou mouth to the doorway, a total length of 1050 meters, a total of 16 stations, across the western white Baitang mouth, to the north 75 ° west, the first The thickness of the Quaternary overlays is about 1,100 meters (Figure 1). All operations in accordance with the national first-class norms and seismic station specifications (draft). All tolerances are in line with norms