Construction method for controlling backfill compaction degree of silty clay
A technology of silty clay and construction method, applied in filling, soil protection, infrastructure engineering and other directions, can solve the problems of poor water permeability, difficult operation and difficult compaction of silty soil, and reduce the number of compaction times. , Simple operation, cost-saving effect
Active Publication Date: 2017-07-28
CHINA MCC17 GRP
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Problems solved by technology
In particular, the backfilling of the on-site building foundation is designed. Most of this kind of building foundation backfilling is based on small square atrium backfilling. The operation is difficult, and the difference in soil quality, water content control, and selection of compaction machines all have a greater impact on the control of backfill compaction. big impact
It is very difficult to control the compaction degree of backfilling atrial core soil with silty clay. On the one hand, the soil itself is in a silty state and it is difficult to compact it. On the other hand, the silty soil has relatively poor water permeability. Soil, when the moisture content of the soil is too low, the compaction degree of the soil cannot meet the requirements
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[0019] The technical solutions of the present invention will be further specifically described below through specific examples, but the present invention is not limited to the examples.
[0020] A construction method for controlling the compaction degree of silty clay backfill according to the present invention mainly includes backfill height marking setting, leveling and watering of the base, watering of backfilling silty clay, layered backfilling of silty clay (each layer is backfilled twice) , watering between layers, compaction and other steps.
[0021] The backfill control line is set, and the backfill height is mainly marked with red paint on the side wall of each grid, and the backfill height of each layer is 200mm; the thickness of the backfill soil can be controlled through the thickness control line to achieve full thickness tamping during the compaction process and layers between layers Sprinkling is mainly through this method to make the moisture content of the ful...
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The invention discloses a construction method for controlling backfill compaction degree of silty clay. The construction method comprises the following construction steps: (1) a backfill control line is set; (2) the leveling and the water spraying are performed for a base layer before backfill; (3) water spraying of backfill silty clay: a spray watering form is used for watering and wetting the scene backfill soil; (4) the silty clay is filled layer by layer according to a marking position to guarantee the compaction thickness; (5) silty clay layers are watered; and (6) the backfill soil is compacted. The construction method has the advantages of: simple operation, obvious effect, labor saving, shortening of the construction period and saving of the construction cost investment.
Description
technical field [0001] The invention relates to a building construction method, in particular to a construction method for controlling the compaction degree of silty clay backfill. Background technique [0002] At present, with the development of the construction industry and functional requirements, various public buildings have emerged as the times require, such as gymnasiums, libraries, etc. The requirements for building functions are getting higher and higher, and the relative engineering quality requirements are getting higher and higher to meet requirements of building functions. In particular, the backfilling of the on-site building foundation is designed. Most of this kind of building foundation backfilling is based on small square atrium backfilling. The operation is difficult, and the difference in soil quality, water content control, and selection of compaction machines all have a greater impact on the control of backfill compaction. big impact. It is very diffi...
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Login to View More IPC IPC(8): E02D17/18E02D3/10E02D3/046
CPCE02D3/046E02D3/10E02D17/18
Inventor戚二舟顾奎任智丁守明梁军
OwnerCHINA MCC17 GRP