Construction method for efficient layered backfilling of earthwork

A layered backfill and construction method technology, applied in excavation, infrastructure engineering, construction, etc., can solve problems such as rework, improper selection of construction equipment, and irregular overall construction

Inactive Publication Date: 2019-05-21
中冶成都勘察研究总院有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is: in order to solve the technical problems of improper selection of construction equipment and unscientific construction operation in the existing earthwork backfill construction process, resulting in irregular overall construction, frequent rework, and low construction efficiency, the present invention provides an earthwork High-efficiency layered backfill construction method

Method used

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Embodiment 1

[0026] This embodiment provides an efficient layered backfill construction method for earth and rock, including the following steps:

[0027] (1) Substrate treatment: Before construction, the surveyors will release the dividing line according to the design drawings, and remove the vegetation and construction waste on the surface. For local areas with unfavorable geological conditions, their specific positions must be determined and marked according to the design drawings and on-site survey;

[0028] (2) Filling in layers: fill in layers according to the full width of the section in the bottom soil treatment, fill from the lowest point, and the thickness of loose paving before filling is not more than 25cm and not less than 12cm;

[0029] (3) Paving and leveling: the earth and rocks are transported from the excavation area to the filling area by dump truck, and the unloaded soil is leveled by the bulldozer;

[0030] (4) Watering and drying: According to the water content of the...

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Abstract

The invention discloses a construction method for efficient layered backfilling of earthwork, and relates to the technical field of backfilling construction of earthwork. The construction method comprises the following steps: (1) substrate treatment; (2) layered filling: before filling compaction, the loose laying thickness is not greater than 25 cm and not less than 12 cm; (3) paving and leveling: earthwork is transported from an excavation area to a soil filling area; (4) watering and drying in the sun: the water content of a filler measured on site is compared with an optimal water content,and when the water content exceeds +/-2%, the filler is watered or dried in the sun; (5) rolling: in a rolling process, a road roller is used for conducting prepressing once in a mode of first lightpressing and then heavy pressing from a low position to a high position and from a side to the middle, then flattening is carried out by a bulldozer and then rolling is carried out; (6) detecting: thewater content and the compaction degree of the filled soil are detected; and (7) filling construction of an uppermost layer of soil: an accurate virtual height is reserved according to the field soiltexture and the field pressure test condition. The method has the advantages that the overall construction is standard, the rework probability is greatly reduced, and the construction efficiency is high.

Description

technical field [0001] The invention relates to the technical field of earth-rock backfilling construction, and more particularly relates to an efficient layered backfilling construction method of earth-rock. Background technique [0002] Earthwork is the general term for earthwork and stonework, that is, soil and stone, and the unit of measurement is generally cubic meters. Common earth and rock works include: site leveling, foundation pit (trough) and pipe trench excavation, roadbed excavation, civil air defense project excavation, floor filling, roadbed filling and foundation pit backfilling. It is necessary to arrange the construction plan reasonably, and try not to arrange it in the rainy season. At the same time, in order to reduce the construction cost of earthwork works, implement the principle of not occupying or occupying less farmland and arable land, and is conducive to land improvement, a reasonable allocation plan for earthwork and overall arrangements should b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/12
Inventor 邓安张文瀚徐建骁杨林
Owner 中冶成都勘察研究总院有限公司
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