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Sludge foundation backfilling construction method

A construction method and silt quality technology, applied in basic structure engineering, excavation, construction, etc., can solve the problems of inability to accurately predict the treatment effect, great influence of treatment results, uneven foundation settlement, etc. Quantity, good reinforcement effect, and the effect of improving the efficiency of backfill construction

Active Publication Date: 2020-09-22
THE FOURTH OF CHINA EIGHTH ENG BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that the above method will lead to a large amount of foundation settlement, increase the amount of backfilling work, and affect the construction period
In addition, the treatment result is greatly affected by the composition and particle size of the backfill mixture, and the treatment effect cannot be accurately predicted.

Method used

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  • Sludge foundation backfilling construction method
  • Sludge foundation backfilling construction method
  • Sludge foundation backfilling construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Such as Figure 1-3 Shown, a kind of silt foundation backfilling construction method comprises the following steps:

[0034] S1, cleaning, cleaning up the weeds, tree roots and other sundries on the surface of the mud layer;

[0035] S2, laying the cloth, laying the geotextile on the surface of the silt layer, specifically, when the geotextile is laid, the silt layer is divided into at least four areas according to the orientation and laid separately, and the geotextiles in the same area are arranged in parallel , The overlapping joints of each adjacent area are distributed in a zigzag shape;

[0036] S3, stitching, stitching the lap joints of the geotextiles, specifically, using a hand-held portable sewing machine, and using nylon threads to sew the geotextiles. Less than 50mm, the distance between two sutures is 10-25mm;

[0037] S4, digging a trench, digging a ring-shaped anchoring ditch around the geotextile, the shape of the anchor ditch corresponds to the layin...

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Abstract

The invention belongs to the field of building construction, and particularly relates to a sludge foundation backfilling construction method. The sludge foundation backfilling construction method comprises the steps of cleaning, cloth laying, sewing, ditching and backfilling, specifically, firstly, weeds, tree roots and other sundries on the surface of a sludge layer are cleaned, then geotechnicalcloth is laid on the surface of the sludge layer, and lapped seams of the geotechnical cloth are sewn; digging an annular anchoring ditch around the geotechnical cloth, and finally filling the mixture into the anchoring ditch and the upper surface of the geotechnical cloth. According to the sludge foundation backfilling construction method, a reinforced isolation layer can be adopted, differential settlement of the foundation caused by the water content difference of the sludge layer can be ignored, backfill materials can be isolated from an original-state soft sludge layer, the integrity ofthe backfill layer is high, the backfill quality is effectively guaranteed, and the soft foundation reinforcing effect is good.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a construction method for backfilling muddy foundations. Background technique [0002] For a long time, weak ground treatment has always been one of the most important problems to be solved in most construction projects. In the usual treatment method, the uneven settlement of the foundation will be caused by the silting of the traditional backfill, which will increase the amount and cost of the backfill project, and the treatment effect will be greatly affected by the composition and particle size of the backfill mixture. The above problems have always caused the engineering and technical personnel of various projects to constantly think about it. There is an urgent need for a treatment method that can reduce the cost and can control and predict its effect. Therefore, which method to use for weak ground treatment has become the focus of research for various constr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D17/12
CPCE02D3/005E02D17/12
Inventor 宋鑫李明男周桂军王满
Owner THE FOURTH OF CHINA EIGHTH ENG BUREAU
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