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Intensive seismic zone landslide prevention and treatment engineering health assessment method

A technology for prevention and control engineering and health assessment. It is applied in special data processing applications, instruments, and electrical digital data processing. It can solve the problems of strong earthquake zones without good assessment and maintenance methods, and easy damage to landslide prevention facilities.

Active Publication Date: 2014-12-10
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Abstract
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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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  • Intensive seismic zone landslide prevention and treatment engineering health assessment method
  • Intensive seismic zone landslide prevention and treatment engineering health assessment method
  • Intensive seismic zone landslide prevention and treatment engineering health assessment method

Examples

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example 2

[0086] Example 2: Earthquake damage point 14:

[0087] 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: N32:8:45.9E104:47:42.6, 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 boundary 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, penetr...

example 3

[0106] Example 3: Earthquake damage point 22 is located along the Hanwang-Qingping section highway (latitude and longitude: N31:27:4.5E104:10:4.4, elevation 723m), which is a cast-in-place 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.

[0107] 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 carr...

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Abstract

The invention discloses an intensive seismic zone landslide prevention and treatment engineering health assessment and maintaining method which comprises the steps of establishing of an assessment system of a blocking wall, an anti-sliding pile health diagnostic indicator system and a pre-stressed anchor cable health diagnostic indicator system. The assessment system of the blocking wall is subjected to assessment with a fuzzy comprehensive method and a grey theory method. According to the anti-sliding pile health diagnostic indicator system, lists are used for carrying out field investigation, deforming measuring, foundation pile non-loss detecting and drill core sampling verifying, and finally a conclusion is obtained. According to the pre-stressed anchor cable health diagnostic indicator system, a fuzzy comprehensive assessment method is used, assessment of sensitive factors (a damage range is larger than or equal to 60%) is carried out first, and when the damage range of anchor cable engineering is limited, general factor assessment is carried out. The method has the advantages that through health assessment of intensive seismic zone (side) landslide prevention and treatment engineering, the health state of certain prevention and treatment engineering can be quickly and efficiently judged, a structure damage position, a damage type and the damage degree are obtained, and accordingly preventive measures are carried out in advance.

Description

technical field [0001] The invention belongs to the technical field of earthquake prevention, 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 statistical...

Claims

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Application Information

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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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