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Fast soft foundation dyke building method and technology

A rapid and soft foundation technology, applied in dikes, buildings, infrastructure engineering, etc., can solve problems such as poor stability of dikes and dams on weak foundations, long construction period, high investment risk, etc., achieve rapid and efficient construction of dikes, increase earth strength, overcome sticky The effect of stagnation

Inactive Publication Date: 2006-05-17
陶钧炳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at problems such as poor stability, long construction period, incapable of mechanized fast large-scale construction of dams on weak foundations, failure of embankment earthwork to pile up, difficulty in closing dams, and high investment risks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: A certain seawall project covers 11,300 mu, and the length of the embankment is 3660m. The whole seawall is built on a soft clay foundation with a deep covering layer. The first layer of muddy clay is 2-3m, the second layer of mud is 5-7m, the third layer of muddy clay is 10-15m, and the fourth layer of loamy clay is 18m. The designed dam height is 8.5-9.5m, the top width is 6.0m, and the maximum width at the dam foot is 121.8m. Plastic drainage boards are inserted into the foundation at a distance of 1.4m to form vertical drainage channels. Lay geotextiles on the dam foundation, and throw gravel with a particle size of ≤10cm to form a horizontal drainage channel. The efficient three-dimensional embankment construction method is adopted to quickly construct the dam body; the undisturbed soil pipeline transportation equipment and methods are used to quickly form air-tight earthwork. Computer technology has been fully applied in the rapid construction of s...

Embodiment 2

[0029] Example 2: A sea breakwater project, the dike axis is 1864.9m long, the dike crest elevation is 8.5m, the mud surface elevation is -7.5m, the thickness of the silt layer is 13-17m, and the maximum soft clay thickness is 21.5m. The blasting and silting operation ship is used to quickly treat the foundation by blasting and silting and rock filling method, and the dam body is quickly constructed by using split barges to transport and fill, dump trucks to vertically block, and blasting and vibrating compaction methods; Explosive ramming for widening, compaction with throwing and explosive ramming, and explosive ramming for slope finishing. The entire project has a short construction period and saves time; high efficiency and remarkable economic benefits; simple process and guaranteed quality. The ground penetrating radar and borehole detection analysis show that the treatment of the foundation and the size of the embankment meet the design requirements. During the construc...

Embodiment 3

[0030] Example 3: The foundation of a wharf has the characteristics of high water content, large void ratio, small permeability coefficient, deep burial, low bearing capacity and shear strength, and high sensitivity. It is a typical weak foundation. Soil layer distribution characteristics (from top to bottom): silty clay, thickness 0-4.5m; silt, roof elevation -3.2m--5.7m; silty clay, roof elevation -9.2m--11.4m; For silty loam, the roof elevation is -13.5m to 16.4m; for loamy clay, the roof elevation is -23.9m to -24.5m. The highest tide level in this area over the years is 3.15m, the average high tide level is 1.22m, the lowest low tide level is -2.42m, the average low tide level is -0.83m, the average tide level is 0.22m, the maximum tide range is 3.97m, and the minimum tide range is 0.03m , the average tidal range of high tide is 2.05m; the maximum tidal range of ebb tide is 4.18m, the minimum tidal range is 0.40m, and the average ebb tide range is 2.05m. The average high...

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Abstract

The present invention relates to a quick diking method and technique on soft foundation. Said invention is characterized by that it adopts the measures of plastic water-discharging plate, earthwork fabric and explosion, etc. to quickly treat foundation; adopts the methods of explosive filling, explosive tamping and light hard-shell dyke and dam, etc. to quickly build dam body; adopts the methods of raw soil pipeline transmission equipment and light hard-shell dyke and dam, etc. to quickly form closed earthwork; and adopts computer technique, finite element analysis and high-effective stereo diking construction method to implement the invented goal of building dyke on soft foundation.

Description

technical field [0001] The present invention relates to dam construction technology. It is a method and system for quickly constructing dams on weak foundations. Background technique [0002] There are a large number of soft clay layers distributed on the surface of the whole earth. The famous soft clays abroad include Drammen clay in Norway, Champlain (Leda) clay in Canada, Boston blue clay in the United States, Chicago clay and San Francisco bay silt, Mexico City clay in Mexico, Thailand Bangkok clay from Singapore, Singapore clay from Singapore, Tokyo clay from Japan, Osaka clay, etc. In China, soft clay is mainly distributed in coastal cities such as Tianjin, Lianyungang, Shanghai, Hangzhou, Ningbo, Wenzhou, Fuzhou, Xiamen, Quanzhou, Guangzhou, Shenzhen, and Zhanjiang, as well as inland cities such as Wuhan, Nanjing, Kunming, and Guiyang. At present, these cities are also the areas with the most rapid economic development and the most active civil engineering activitie...

Claims

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Application Information

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IPC IPC(8): E02B3/10E02D3/02
CPCY02A10/11
Inventor 陶松垒陶钧炳张子和谢远富俞元洪张志建陈富强
Owner 陶钧炳
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