Method for predicting rock sinking depth of breakwater under action of waves

A depth prediction and breakwater technology, applied in the field of marine engineering, can solve problems such as overall instability, strength reduction, and large investment, and achieve reliable results, simple predictions, and strong procedures

Active Publication Date: 2019-04-16
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The concrete material has high rigidity, high strength, and strong wave-proof ability, but the investment is large. In addition, once a part is damaged, the whole is often prone to instability; block stone breakwaters are relatively low in cost, and local damage is not likely to cause overall instability. , is a more common form of
The foundation of the block stone breakwater may soften under the long-term action of waves, resulting in a decrease in strength, and the block stone will gradually sink under the action of its own weight
At present, there is no relevant theoretical method to determine the subsidence depth

Method used

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  • Method for predicting rock sinking depth of breakwater under action of waves
  • Method for predicting rock sinking depth of breakwater under action of waves
  • Method for predicting rock sinking depth of breakwater under action of waves

Examples

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Embodiment 1

[0039] A method for predicting the subsidence depth of breakwater block stones under the action of waves in this embodiment is applied to a flood control embankment in the southeast coast of Fujian Province. The flood control embankment is filled with block stones mined from surrounding mines. It is 2.6~3.7m, and the side slope is 1:1.5.

[0040] (1) After measuring the size of a certain stone, it is determined that its width b is 0.37m and its length l is 0.51m; by measuring its volume and mass, its volume is 0.062m 3 , to calculate the density ρ of the block 0 2.74g / cm 3 ;

[0041] (2) The undrained shear strength of the foundation soil with depth c u , measured every 10cm in depth, the results are shown in Table 1;

[0042] (3) Use the static penetrometer to test the cone end resistance q of the foundation soil with depth c , also measured every 10cm in depth, the results are shown in Table 1;

[0043] (4) Take the original sample on site, and use the ring knife metho...

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Abstract

The invention discloses a method for predicting the rock sinking depth of breakwater under the action of waves. By an ingenious and precise design method, quantitative comparison on the sinking pressure of block stone and the ultimate bearing capacity after a foundation is softened, so that the rock sinking depth of the breakwater under the extreme sea condition wave action can be effectively measured, the blank of an existing subsidence depth measuring method is filled, and great significance is achieved for knowing the foundation burying depth, the design elevation and the size of breakwater.

Description

technical field [0001] The invention belongs to the field of marine engineering, and in particular relates to a method for predicting the subsidence depth of breakwater blocks under the action of waves. Background technique [0002] A breakwater is a structure built along the coast to prevent waves from invading the land under extreme sea conditions, and is usually filled with concrete or block stones. The concrete material has high rigidity, high strength, and strong wave-proof ability, but the investment is large. In addition, once a part is damaged, the whole is often prone to instability; block stone breakwaters are relatively low in cost, and local damage is not likely to cause overall instability. , is a more commonly used form. The foundation of the block stone breakwater may soften under the long-term action of waves, resulting in a decrease in strength, and the block stone gradually sinks under the action of its own weight. At present, there is no relevant theoret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/18G01N3/24
CPCG01B5/18G01N3/24
Inventor 常方强梁康康
Owner HUAQIAO UNIVERSITY
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