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Floating flashboard machine and large area ultra-weak foundation fast directly draining concretion method

A plug-in machine and plug-in technology, which are applied in the fields of highway and bridge engineering, port engineering, and construction engineering, can solve the problems of difficult construction operation, tight sand source of construction sand cushion, lack of sand source, etc., and achieve extended construction period and construction period. The effect of shortening and cost reduction

Inactive Publication Date: 2008-03-19
CCCC FOURTH HARBOR ENG CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these methods have certain limitations, especially the most commonly used sand cushion method, because the sand source of the construction sand cushion is becoming more and more tense and lacking, making the construction operation more and more difficult, so it is necessary to find a new method. Method to Insert Drain Board

Method used

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  • Floating flashboard machine and large area ultra-weak foundation fast directly draining concretion method
  • Floating flashboard machine and large area ultra-weak foundation fast directly draining concretion method
  • Floating flashboard machine and large area ultra-weak foundation fast directly draining concretion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: The construction process of strengthening the soft soil foundation by vacuum preloading method

[0034] As shown in Figure 1 and Figure 4,

[0035] ① Firstly, the surface of the soft soil foundation 1 is cleaned up and the site is leveled;

[0036] ② Build a cofferdam 4 around the foundation 1;

[0037] ③ store water 5 in the cofferdam 4, and the water depth is 30-50cm;

[0038] ④Use floating inserter 7 to insert vertical drainage system, such as drainage board 6, bagged sand well, sand bag, etc.;

[0039] 5. after the drainage board 6 has been inserted, take away or bleed off the water storage 5, and embed a horizontal drainage system on the mud surface, such as laying PVC filter pipe 7, plastic blind ditch, sand bag (quilt), crushed water on the mud surface Stone bags, etc., and are connected with vertical drainage systems such as vertical drainage boards and bagged sand wells. When connecting, ensure that the joints of the horizontal and vertical draina...

Embodiment 2

[0043] Embodiment 2: The construction process of strengthening the soft soil foundation by vacuum combined surcharge preloading method is shown in Figure 1 and Figure 5,

[0044] ① Cleaning and leveling the surface of the soft soil foundation 1;

[0045] ② Build a cofferdam 4 around the foundation 1;

[0046] ③ store water 5 in the cofferdam 4, and the water depth is 30-50cm;

[0047] ④Use floating inserter 7 to insert vertical drainage system, such as drainage board 6, bagged sand well, sand bag, etc.;

[0048] 5. after the drainage board 6 has been inserted, take away or bleed off the water storage 5, and embed a horizontal drainage system on the mud surface, such as laying PVC filter pipe 7, plastic blind ditch, sand bag (quilt), crushed water on the mud surface Stone bags, etc., and are connected with vertical drainage systems such as vertical drainage boards and bagged sand wells. When connecting, ensure that the joints of the horizontal and vertical drainage systems ar...

Embodiment 3

[0053] Example 3: The construction process of using vacuum preloading combined with dynamic compaction to strengthen soft soil foundation

[0054] As shown in Figure 1 and Figure 6,

[0055] ① Cleaning and leveling the surface of the soft soil foundation 1;

[0056] ② Build a cofferdam around the foundation 1;

[0057] ③ Store water in the cofferdam, the water depth is 30-50cm;

[0058] ④The vertical drainage system shall be installed by using the floating plug-in machine, such as drainage board 6, bagged sand wells, sand bags, etc.;

[0059]5. after the drainage plate 6 has been inserted, let off the water storage, and embed a horizontal drainage system on the mud surface, such as laying PVC filter pipes, plastic blind ditch, sand bags (quilt), gravel bags, etc. on the mud surface, and Connect with vertical drainage systems such as vertical drainage boards and bagged sand wells. When connecting, ensure that the joints of the horizontal and vertical drainage systems are wel...

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Abstract

The present invention discloses a floating type flash board machine. The present invention comprises a main body rack, a flash board machinery and a buoyancy device supported at the bottom part of the main rack, and the flash board machinery comprises a guide rail, a stand frame and a flash board mechanism, the guide rail is laid on the main body rack, the stand frame is connected with the main body rack to slide along the guide rail, and the flash board mechanism is fixed on the stand frame. The present invention also discloses a large area ultra-weak foundation quick and direct drainage consolidation method, which operate the board flash by utilizing the floating type flash board machine. As for the soft soil foundation having large moisture content and poor carrying capacity, the floating type flash board machine of the present invention can also operate above in the same way, so as to conveniently insert the drainage board, and thereby the drainage consolidation method can be implemented smoothly to treat the large area ultra-weak foundation. The present invention does not require non woven fabric and an earthwork grate to be pre-laid on the foundation to be treated, and a sand cushion is also not required to be laid in the treating process, therefore, the construction period can be shortened without restraints of the sand source condition, and the present invention has important significance to cost reduction and environmental protection.

Description

technical field [0001] The invention relates to the technical fields of construction engineering, port engineering, highway and bridge engineering, etc., and in particular relates to a floating slotting machine applied to large-area ultra-soft foundations and a rapid direct drainage consolidation method using the slotting machine. Background technique [0002] The existing soft soil foundation reinforcement methods mainly include vacuum preloading, surcharge preloading, combined vacuum surloading preloading and dynamic compaction. When these methods strengthen foundation, at first will insert drainage board on soft soil foundation, arrange drainage ditch, install PVC pipe and lay drainage cushion etc. work. Especially to insert the drainage board, you need to insert the drainage board machine to carry out. However, many soft foundations to be treated are very soft, the soil has a high moisture content, and the foundation has no bearing capacity, so the drainage board machin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/20
Inventor 董志良莫海鸿房营光张功新刘永锋林军华李燕罗彦胡继业郑新亮
Owner CCCC FOURTH HARBOR ENG CO LTD
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