Construction method for carrying out rolling compaction and slope reinforcement on faced dam

A construction method and technology for face dams, which are applied in excavation, infrastructure engineering, construction, etc., can solve the problems of difficulty in guaranteeing the compactness of slope rolling, overfilling of face concrete, and large amount of slope repairing works. Cracks, good dam body deformation, and the effect of reducing construction costs

Inactive Publication Date: 2011-01-05
SINOHYDRO BUREAU 5
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  • Summary
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Its disadvantages are that the slope repairing project requires a large amount of work, it is difficult to guarantee the compactness of slope rolling, and the deviation from the design line is large, resulting in overfilling of the face concrete; the transportation and disposal of slope repair materials will increase the project cost, and at the same time, this construction method has a lot of interference on site , the construction progress is slow

Method used

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Embodiment Construction

[0011] The present invention will be described in further detail below.

[0012] The construction process of the face-face dam slope consolidation by rolling: before construction, the first layer of formwork is installed and fixed on the upstream slope, and after the formwork is installed, the cushion material is rolled and constructed, and embedded in the cushion material. Tension bars; design requirements to be met by the cushion material: the maximum particle size of the cushion material should not be too large, and it should contain more fine materials; it must have semi-permeable, low compressibility and high shear strength; the cushion material is Non-plastic well-graded limestone artificially prepared materials require hard, durable particles without clay and organic impurities; the gradation range of cushion materials is: the maximum particle size is 80MM, and the gravel content is 45% to 65%. It is continuously graded; ordinary asphalt in the ordinary asphalt sand mix...

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Abstract

The invention discloses a construction method for carrying out rolling compaction and slope reinforcement on a faced dam. The method comprises the following steps: before construction, installing and fixing a first-floor template, then carrying out rolling compaction on a bedding material, and embedding tie bars into the bedding material; after the first floor is subject to rolling compaction to be qualified, utilizing a mechanical lifting template 5CM to carry out mortar pouring; after the mortar strength is allowed, arranging a lifting trolley on an end template, installing a second-floor template for carrying out rolling compaction, and utilizing a trolley lifting template to carry out mortar pouring after the second floor is subject to rolling compaction to be qualified; in the process of constructing a third floor, arranging a rack track capable of moving up and down on two templates at the end, moving the trolley to the orbital position, utilizing a jack to jack up the trolley, then rotating a running gear for 90 degrees, and placing onto the track, thus enabling the trolley to run to a track on the second-floor template to operate; and utilizing the trolley to lift the constructed first-floor template for a certain height, translating to the third floor, installing into a proper position, carrying out rolling compaction, and repeating the operation in this way until finishing the construction. The construction method has the advantages of little interference to the site and rapid construction progress.

Description

technical field [0001] The invention relates to a slope-consolidating construction method, in particular to a face-face dam rolling-compacting slope-consolidating construction method. Background technique [0002] For the construction of the upstream slope of the cushion material of concrete face rockfill dams, the slope rolling method has been used at home and abroad: when the cushion material is filled, the upstream surface is overfilled by about 30 cm, and the slope is repaired and the slope is rolled before the face construction. Press, manually spread the mortar on the slope and then roll it on the slope. Its disadvantages are that the slope repairing project requires a large amount of work, and it is difficult to guarantee the rolling density of the slope, and the deviation from the design line is large, resulting in overfilling of the face concrete; the transportation and disposal of slope repairing materials will increase the project cost, and this construction metho...

Claims

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Application Information

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IPC IPC(8): E02D17/20
Inventor 吴高见孙林智杨建平任俊友梁涛高印章黄富军丁晓勇
Owner SINOHYDRO BUREAU 5
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