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Construction method for treating foundation through filling by adopting draining pile tubes

A construction method and technology of drainage piles, applied in basic structure engineering, soil protection, construction, etc., can solve problems such as complex construction process, high construction cost, waste of materials, etc., to simplify construction process, save construction cost, and shorten construction period Effect

Inactive Publication Date: 2011-05-18
任再永
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the drainage board can only make the foundation soil layer achieve a certain degree of drainage and consolidation (consolidation strength can generally reach 6-8 tons / m2), when the engineering project requires a high bearing capacity for the foundation (consolidation The strength requirement reaches 8-10 tons / m2 or more), the second construction must be carried out on the preliminary consolidated foundation soil layer formed after the soft soil foundation is drained, and various pipe piles are laid for further consolidation, or other construction techniques are used Reinforcement treatment, waste of materials, long construction period, complicated construction process, high cost of two constructions

Method used

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  • Construction method for treating foundation through filling by adopting draining pile tubes
  • Construction method for treating foundation through filling by adopting draining pile tubes
  • Construction method for treating foundation through filling by adopting draining pile tubes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, the construction method of using the drainage pile pipe filling method to treat the foundation includes the following steps:

[0032] The first step is to clean the surface of the foundation and lay a horizontal drainage cushion 8 (building materials with good water permeability such as gravel, gravel, sand, etc.);

[0033] The second step is to use a drainage pile pipe with holes in the pipe wall and a filter membrane, install the bottom plug 4 of the drainage pile pipe, and insert the buried drainage pile pipe 11 according to the depth and spacing required by the project;

[0034] The 3rd step, insert and place hollow plastics pumping drainage pipe 10 (preferably inserted into the bottom position of drainage pile pipe) in every drainage pile pipe;

[0035] The fourth step is to connect each plastic pumping and draining pipe to the connection pipe 14 to form an interconnected pipe network, and connect the connection pipe to the suction water pump 15 on th...

Embodiment 2

[0043] Embodiment 2, the construction method of using the drainage pile pipe filling type to treat the foundation includes the following steps:

[0044] The first step is to clean up the surface of the foundation;

[0045] The second step is to use a drainage pile pipe with holes in the pipe wall and a filter membrane, install the bottom plug 4 of the drainage pile pipe, and insert the buried drainage pile pipe 11 according to the depth and spacing required by the project;

[0046] The 3rd step, insert and place hollow plastics pumping drainage pipe 10 (preferably inserted into the bottom position of drainage pile pipe) in every drainage pile pipe;

[0047]The fourth step is to connect each plastic pumping and draining pipe to the connection pipe 14 to form an interconnected pipe network, and connect the connection pipe to the suction water pump 15 on the ground;

[0048] The fifth step is to use the water pump for continuous pumping and drainage, and discharge the accumulate...

Embodiment 3

[0054] Embodiment three, the construction method of using the drainage pile pipe filling type to treat the foundation includes the following steps:

[0055] The first step is to clean the surface of the foundation, laying a horizontal drainage cushion 8 (drainage materials with good water permeability such as gravel, gravel, sand, etc.), and laying a plastic drainage filter pipe in the horizontal drainage cushion;

[0056] The second step is to use a drainage pile pipe with holes in the pipe wall and coated with a filter membrane, install the bottom plug 4 of the drainage pile pipe, and insert the buried drainage pile pipe 11 according to the depth and spacing required by the project;

[0057] The third step is to insert a hollow pumping drainage pipe 10 (preferably inserted into the bottom position of the drainage pile pipe) in each drainage pile pipe, install the special sealing top plug 5 for the drainage pile pipe, the suction and drainage pipe mouth joint 51 and the vacuum...

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Abstract

The invention provides a construction method for treating foundation through filling by adopting draining pile tubes, belonging to the technical fields of water-bearing soft soil foundation draining and solidifying construction. The existing one-time draining construction of the water-bearing soft soil foundation can not satisfy the projects with higher requirements for bearing capacity needed bythe foundation. In the method, draining pile tubes are adopted, wherein the walls of the pile tubes are provided with holes and coated with filter membrane structures, and then filling materials are poured into the draining pile tubes after drainage, thus sleeved piles with functions of supporting and secondarily reinforcing the foundation are formed. The vacuum suction and drainage principle, the loading drainage principle and the construction method can be combined. The method has the following advantage: the draining components which are originally useless after drainage can be directly used as the sleeved piles with the function of secondarily reinforcing the foundation after drainage, thus greatly enhancing the bearing capacity and stability of the foundation, ensuring that one object has two purposes, saving the construction cost of the pile after driving, shortening the construction period and simplifying the construction process. The method is especially suitable for the projects with high requirements for the bearing capacity of the foundation.

Description

【Technical field】 [0001] The invention relates to a construction method for foundation treatment by using drainage pile pipe filling, and belongs to the technical field of drainage and consolidation construction of water-containing soft soil foundation. 【Background technique】 [0002] Soft soil foundations are often encountered in projects such as highways, railways, airports, power plants, storage yards, ports, reclamation, and sewage treatment plants. Due to the characteristics of soil quality, small soil particles, high viscosity, and low bearing capacity, it is necessary to drain the water in the foundation to consolidate the foundation before subsequent construction can be carried out. The drainage construction of the existing water-containing soft soil foundation generally adopts the vacuum drainage board. In the actual construction process, a plurality of sheet-shaped drainage boards with drainage grooves and coated with a filter film layer are vertically inserted in...

Claims

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Application Information

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IPC IPC(8): E02D3/02E02D3/10E02D3/08
Inventor 任再永
Owner 任再永
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