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A health assessment method for landslide prevention and control engineering in strong earthquake zone

A prevention and control engineering and health assessment technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as landslide prevention facilities are easily damaged, and there are no good evaluation and maintenance methods in strong earthquake zones.

Active Publication Date: 2018-05-04
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a health assessment and maintenance method for landslide prevention and control in strong earthquake zones, which solves the problem that the existing strong earthquake zone does not have a good assessment and maintenance method, making landslide prevention facilities easily damaged in earthquakes

Method used

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  • A health assessment method for landslide prevention and control engineering in strong earthquake zone
  • A health assessment method for landslide prevention and control engineering in strong earthquake zone
  • A health assessment method for landslide prevention and control engineering in strong earthquake zone

Examples

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example 2

[0093] Example 2: Earthquake damage point 14:

[0094]Earthquake damage point 14 is located at the place from Xiangyan to the dam in the Xinxian Town-Qingchuan section of Beichuan, near Niufei Village, Pingtong Town (latitude and longitude: N32: 8: 45.9 E104: 47: 42.6, elevation 723m), which is a cast-in-situ concrete retaining wall. The retaining wall is 2.6m high, 2m wide and 188m long. The retaining wall is inclined in two stages, and the cracks are mainly distributed at the boundary of the segmental cast-in-place during construction. The toppling deformation angle of the right border is 5 degrees, and the dislocation displacement caused by the top falling forward is 15cm; the second-level retaining wall overturns about 15m from the left facing the retaining wall, the overturning deformation angle is 9 degrees, and the overturning displacement of the top is 25cm, and the middle part of the retaining wall is overturned. Longitudinal cracks appeared, opened 12 to 15 cm, pene...

example 3

[0113] Example 3: Earthquake damage point 22 is located along the Hanwang-Qingping section highway (latitude and longitude: N31: 27: 4.5 E104: 10: 4.4, elevation 723m), which is a cast-in-situ concrete retaining wall. The retaining wall is 7m high and 1.2m wide. On the left side facing the wall, at a distance of 2.2m from the bottom of the wall, there is a transverse crack that runs through the entire wall, dividing the wall into upper and lower parts, and there is a maximum 10cm dislocation . At the same time, 6 large vertical cracks can be seen from left to right in the wall from the top to the bottom of the wall. The cracks are about 1cm wide, and almost all of them intersect with the horizontal cracks. There is no overall displacement of the wall due to misalignment.

[0114] Firstly, the key factor analysis is carried out, and it can be seen that at the earthquake damage point, the earthquake damage range is about 20% less than 60%, and the next factor evaluation can be ...

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Abstract

The invention discloses a health evaluation and maintenance method for landslide prevention and control in a strong earthquake zone, including establishing an evaluation system for retaining walls, an index system for health diagnosis of anti-slide piles and a health diagnosis index system for prestressed anchor cables; wherein, the evaluation system for retaining walls adopts fuzzy synthesis Evaluation method and gray theory method; anti-slide pile health diagnosis index system uses a list to draw conclusions on site investigation, deformation measurement, foundation pile non-destructive testing, core sampling verification; prestressed anchor cable health diagnosis index system uses fuzzy synthesis As for the evaluation method, the sensitivity factor (damage range ≥ 60%) is evaluated first, and the general factor evaluation is performed when the damage range of the anchor cable project is limited. The beneficial effect of the present invention is that through the health assessment of the slippery (side) slope prevention and control project in the strong earthquake zone, the health status of a certain prevention and control project can be judged quickly and efficiently, and the structural damage position, damage type and damage degree can be obtained, so as to take preventive measures in advance .

Description

technical field [0001] The invention belongs to the technical field of earthquake prevention and control, and relates to a method for evaluating the health of a landslide prevention project in a strong earthquake zone. Background technique [0002] The health assessment of engineering structures originated from the risk assessment in the insurance industry in the 1930s. With the rapid development of the construction industry, people pay more and more attention to it. Since the 1940s, the health assessment of engineering structures has been greatly developed. Firstly, it starts from the reinforced concrete structure of the building. It generally adopts on-site investigation, visual inspection and certain structural calculations, mainly relying on the personal knowledge and knowledge of engineers and technicians. Experience to make judgments and processing, with a certain degree of subjectivity and blindness. With the development of science and technology, the introduction of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 巨能攀郑达黄健梁力丹肖燃
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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