A method for predicting the subsidence depth of breakwater blocks under the action of waves

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

Active Publication Date: 2020-08-07
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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  • A method for predicting the subsidence depth of breakwater blocks under the action of waves
  • A method for predicting the subsidence depth of breakwater blocks under the action of waves
  • A method for predicting the subsidence depth of breakwater blocks under the action of waves

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Embodiment 1

[0039] The method for predicting the subsidence depth of breakwater blocks under the action of waves in this embodiment is applied to a flood control embankment along the southeast coast of Fujian Province. It is 2.6~3.7m, and the 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, the measured volume is 0.062m 3 , calculate the density ρ of the rock 0 2.74g / cm 3 ;

[0041] (2) The undrained shear strength c of the foundation soil with depth is measured by the on-site cross plate shearing instrument u , measured every 10cm in depth, the results are shown in Table 1;

[0042] (3) The cone end resistance q of the foundation soil with depth is measured by using a static probe c , measured every 10cm in depth, and the results are shown in Table 1;

[0043] (4) Take the original sample on site, and measure the density ρ of the soil by the ring knife m...

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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, in particular to a method for predicting the subsidence depth of breakwater blocks under the action of waves. Background technique [0002] Breakwaters are structures built along the coast to prevent waves from attacking the land under extreme sea conditions, usually filled with concrete or block stones. Concrete material has high rigidity, high strength and strong wave resistance, but the investment is large. In addition, once the part is damaged, it is often easy to lose the overall stability; the relative cost of the block rock breakwater is relatively low, and the partial damage is not easy to cause the overall instability. , is a more common form. The foundation of the rock breakwater may soften under the long-term action of waves, resulting in a decrease in strength, and the rock gradually sinks under the action of its own weight. At present, there is no relevant theoretical method to de...

Claims

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Application Information

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