Method for processing environment-friendly deep soft soil shallow foundation and device for reinforcing foundation

An environment-friendly, foundation treatment technology, applied in soil protection, infrastructure engineering, sheet pile walls, etc., can solve problems such as high engineering cost, damage to underground water channels, and impact on the ecological environment around the foundation, and achieve high social benefits. , The effect of low engineering cost

Active Publication Date: 2013-09-18
WUHAN GUANGYI ENG CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For deep soft soil or ultra-soft soil, the traditional foundation treatment method often uses cement as the solidification material, which is reinforced by semi-rigid or flexible pile foundation mixed with deep mixing, rotary spraying or powder spraying, so as to improve or strengthen the natural state of the foundation , the technical measures to make it meet the engineering requirements, the engineering cost is high, and the underground waterway channel in the regional stratum is destroyed, affecting the ecological environment around the foundation

Method used

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  • Method for processing environment-friendly deep soft soil shallow foundation and device for reinforcing foundation
  • Method for processing environment-friendly deep soft soil shallow foundation and device for reinforcing foundation
  • Method for processing environment-friendly deep soft soil shallow foundation and device for reinforcing foundation

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Effect test

Embodiment 1

[0044] Embodiment 1: In the step 5), the foundation pile driven by the piling machine adopts an environmentally friendly lightweight material pile 8, which cooperates with the plastic drainage board 3 to form a light hard shell layer, and the material of the environmentally friendly lightweight material pile 8 It is composed of the following three raw materials: ①quicklime, ②cement or waste gypsum or sodium sulfate powder, ③fly ash or slag or slag, ④ceramic sand or aeolian sand; the parts by weight of each raw material are: ① 1-8 parts of quicklime, ② 1-3 parts of cement or 0.01-2 parts of waste gypsum or 0.01-1 part of sodium sulfate powder, ③ 2-9 parts of fly ash or slag or slag in any proportion, according to the above weight ratio , the material of the environmentally friendly lightweight material pile 8 is light, can react with water and can be cured.

Embodiment 2

[0045] Embodiment 2: Compared with Embodiment 1, other things remain unchanged, only in the step 5), the foundation pile driven by the piling machine is made of environmentally friendly lightweight material pile 8, which works together with the plastic drainage board 3 to form a light hard shell layer , the material of the environmentally friendly lightweight material pile 8 is composed of the following four kinds of raw materials: ① quicklime, ② cement or waste gypsum or sodium sulfate powder, ③ fly ash or slag or slag, ④ ceramsite sand or aeolian sand The parts by weight of each raw material are: ① 1-8 parts of quicklime, ② 1-3 parts of cement or 0.01-2 parts of waste gypsum or 0.01-1 part of sodium sulfate powder, ③ fly ash or slag or slag according to any The ratio is 2 to 9 parts in total, and ④ ceramsite sand or aeolian sand is 1 to 6 parts in any proportion. According to the above weight ratio, the material of the environmentally friendly lightweight material pile 8 is l...

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Abstract

The invention provides a method for processing an environment-friendly deep soft soil shallow foundation. The method comprises the steps as follows: vacuumizing in PVC (polyvinyl chloride) main pipes through a vacuum pump, and transmitting a negative pressure into foundation soil through plastic water draining plates to discharge pore water between soil particles so as to increase the bearing capacity of soft soil for the first time; and forming a vertically reinforced light hard shell layer through an environment-friendly light pile. A reinforcement device comprises a row of PVC main pipes, multiple columns of PVC auxiliary pipes, a plurality of plastic water draining plates and a vacuum pump, wherein one end of each PVC main pipe is connected with the vacuum pump; the other end of each PVC main pipe is closed; one end of each PVC auxiliary pipe is communicated with each PVC main pipe; the other end of each PVC auxiliary pipe is closed; a groove opening with the width of 6-8 mm is formed in the side wall of each PVC auxiliary pipe; one end of each plastic water draining plate is inserted into each groove opening; each groove opening and the joint of each plastic water draining plate and each groove opening are wound and sealed with a plastic film or an adhesive tape; and the other end of each plastic water draining plate is inserted into a soft soil or ultra soft soil foundation. The method has the benefits as follows: the light hard shell layer is formed under the action of the plastic water draining plates and the environment-friendly light pile, the surrounding environment of the foundation is not destroyed, and the construction cost is low.

Description

technical field [0001] The invention belongs to the field of deep soft soil shallow layer reinforcement treatment in civil engineering construction, and in particular relates to an environment-friendly deep soft soil shallow layer foundation treatment method and a reinforcement device thereof. Background technique [0002] Soft soil generally refers to modern sediments deposited in still water and slow-flowing water environments, mainly composed of clay and accompanied by microbial action. It is in the state of soft plastic to flow plastic, and its appearance is mainly gray fine soil particles, such as silt and muddy soil, peat soil and swamp soil, and other highly compressible saturated clay and silt. Among them, silt and muddy soil are the main types of soft soil. [0003] There are a large amount of soft soil or super soft soil with a thickness of more than 20 meters in inland rivers, lakes, swamps, and ocean coasts. When building roads, railways, ports and other buildin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10E02D3/08E02D5/24E02D3/046E02D3/12
Inventor 冯守中屈双双周建连冲李洁王军
Owner WUHAN GUANGYI ENG CONSULTING
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