Application of statistical test on determining the unstable points in the basic network of horizontal displacement monitoring
- Authors: Khanh Quoc Pham *
Hanoi University of Mining and Geology, Vietnam
- Received: 18th-Sept-2020
- Revised: 9th-Jan-2021
- Accepted: 2nd-Feb-2021
- Online: 28th-Feb-2021
- Section: Geomatics and Land Administration
The paper represents the hypothesis test method that can determine the instability control points of the reference network in the displacement of construction. Regarding data processing in displacement monitoring, the detection and modification for instability points is an important task because this affects the computation of the displacement of monitoring points. This method has been applied in many countries over the world but not in Vietnam, and it is processed through two steps including the global statistics test and local statistics test. The global statistics test is to identify whether a control point is stable or not. The local statistics test based on the division of groups is to find the unstable control points exactly. Experimental computation is carried out in two monitoring cycles at Hoa Binh hydroelectric plant. In this experiment, this algorithm detected two unstable points among six control points. This result is in agreement with the result that is solved by Vietnam’s construction standard of TCVN 9399:2012. In conclusion, the hypothesis test method completely can apply in real geodetic production in Vietnam.
Amiri-Simkooei A. R., M.ASCE; S. M. Alaei-Tabatabaei; F. Zangeneh-Nejad; and B. Voosoghi, (2016). Stability Analysis of Deformation-Monitoring Network Points Using Simultaneous Observation Adjustment of Two Epochs. Journal of Surveying Engineering, 143(1).
Nguyễn Quang Phúc, Hoàng Anh Thế, (2009). Nghiên cứu phương pháp phân tích độ ổn định các mốc lưới cơ sở quan trắc chuyển dịch ngang đo bằng công nghệ GPS. Tạp chí Khoa học kỹ thuật Mỏ - Địa chất, số 26, 83-86.
Phạm Quốc Khánh, Zhang Zhenglu, (2013). Một phương pháp xác định độ ổn định điểm lưới cơ sở trong quan trắc biến dạng công trình đường hầm. Hội nghị khoa học Viện khoa học công nghệ xây dựng, 207-210.