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A platform for research: civil engineering, architecture and urbanism
Establishment method of independent elevation system for bridge construction in areas with abnormal gravity significance
The invention relates to an establishment method of an independent elevation system for bridge construction in an area with abnormal gravity significance and a bridge construction method in the area with abnormal gravity significance. The establishment method comprises the following steps: step 1, arranging a bridge level point at each of bridge abutment design positions at the two ends of a bridge; step 2, respectively measuring the altitude difference between a level base point and the bridge level point, carrying out normal level surface unparallelism correction and gravity anomaly correction on the altitude difference, and calculating the elevation of the bridge level point by adopting the corrected altitude difference; and step 3, setting a bridge construction encryption standard point in the bridge construction range, measuring the height difference between the bridge level point and the bridge construction encryption standard point, calculating the elevation of the bridge construction encryption standard point, and establishing a bridge construction independent elevation system. The bridge construction method for the area with the abnormal gravity significance comprises thestep that construction lofting is conducted according to the bridge construction independent elevation system.
本发明涉及一种重力异常显著地区桥梁施工独立高程系统的建立方法及重力异常显著地区桥梁施工方法，其中重力异常显著地区桥梁施工独立高程系统的建立方法包括以下步骤：步骤一：在桥梁两端桥台设计位置各设置1个桥梁水准点；步骤二：分别测量水准基点到桥梁水准点之间的高差，并对高差进行正常水准面不平行改正和重力异常改正，采用改正后的高差计算出桥梁水准点的高程；步骤三：在桥梁施工范围内设置桥梁施工加密水准点，测量桥梁水准点到桥梁施工加密水准点间的高差，并计算桥梁施工加密水准点的高程，建立桥梁施工独立高程系统；重力异常显著地区桥梁施工方法包括根据桥梁施工独立高程系统进行施工放样。
Establishment method of independent elevation system for bridge construction in areas with abnormal gravity significance
The invention relates to an establishment method of an independent elevation system for bridge construction in an area with abnormal gravity significance and a bridge construction method in the area with abnormal gravity significance. The establishment method comprises the following steps: step 1, arranging a bridge level point at each of bridge abutment design positions at the two ends of a bridge; step 2, respectively measuring the altitude difference between a level base point and the bridge level point, carrying out normal level surface unparallelism correction and gravity anomaly correction on the altitude difference, and calculating the elevation of the bridge level point by adopting the corrected altitude difference; and step 3, setting a bridge construction encryption standard point in the bridge construction range, measuring the height difference between the bridge level point and the bridge construction encryption standard point, calculating the elevation of the bridge construction encryption standard point, and establishing a bridge construction independent elevation system. The bridge construction method for the area with the abnormal gravity significance comprises thestep that construction lofting is conducted according to the bridge construction independent elevation system.
本发明涉及一种重力异常显著地区桥梁施工独立高程系统的建立方法及重力异常显著地区桥梁施工方法，其中重力异常显著地区桥梁施工独立高程系统的建立方法包括以下步骤：步骤一：在桥梁两端桥台设计位置各设置1个桥梁水准点；步骤二：分别测量水准基点到桥梁水准点之间的高差，并对高差进行正常水准面不平行改正和重力异常改正，采用改正后的高差计算出桥梁水准点的高程；步骤三：在桥梁施工范围内设置桥梁施工加密水准点，测量桥梁水准点到桥梁施工加密水准点间的高差，并计算桥梁施工加密水准点的高程，建立桥梁施工独立高程系统；重力异常显著地区桥梁施工方法包括根据桥梁施工独立高程系统进行施工放样。
Establishment method of independent elevation system for bridge construction in areas with abnormal gravity significance
一种重力异常显著地区桥梁施工独立高程系统的建立方法
MEI XI (author) / LI XUESHI (author) / DENG JUNQIAO (author) / LAI HONGBIN (author) / ZHAO YOUBING (author) / LU JIANKANG (author) / LIU ZHIPENG (author) / CAO TITAO (author) / ZHANG KEJUN (author)
2020-09-15
Patent
Electronic Resource
Chinese
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