Construction method of scour-filled mortar stone dam with masonry masonry prefabricated block masonry dam shell

A construction method and prefabricated block technology, applied in dams, wall dams, coastline protection, etc., can solve the problems that prefabricated blocks are not suitable for use as gravity formwork, inconvenient for mechanized construction, and high in operation efficiency, and achieve beautiful appearance and automatic orientation. Good condition, low cost effect

Inactive Publication Date: 2011-12-14
沈阳乾玉水利有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a construction method for filling mortar stone dams with masonry masonry prefabricated block masonry dam shells, which solves the inconvenient mechanized construction of masonry dam shells in the prior art, low operating efficiency, and unsuitable prefabricated blocks As gravity formwork and other defects, it uses large-diameter natural stones to make hexagonal masonry prefabricated blocks as gravity formwork, which can widely use local materials and greatly reduce the cost of prefabricated blocks; using this hexagonal masonry prefabricated block The

Method used

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  • Construction method of scour-filled mortar stone dam with masonry masonry prefabricated block masonry dam shell
  • Construction method of scour-filled mortar stone dam with masonry masonry prefabricated block masonry dam shell
  • Construction method of scour-filled mortar stone dam with masonry masonry prefabricated block masonry dam shell

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Example 1: Flush-filled stone dam shell:

[0037] Hexagonal masonry prefabricated blocks with a side length of 50cm~100cm and a thickness of 50~150cm can be used as the dam shell of the scoured stone dam. In order to ensure the effective connection between the dam shell and the dam body, at least 10cm No pulp rough surface. Combined with the gravity formwork action of the dam shell, the blocks are drawn or counter-drawn with steel bars. The dam body can adopt the construction technology of flushing and filling the stone dam, which is filled in layers with natural graded stone materials, and the sand washing process is layered with cement slurry, and the filling is carried out with the filling layer. An innovation in construction technology, maximizing the use of local materials and mechanical construction, reducing construction costs by 50-60%, shortening the construction period by 50-70%, and beautiful appearance.

Embodiment 2

[0038] Example 2: Upstream slope protection project of earth-rock dam:

[0039] The upstream slope protection of earth-rock dams mainly solves the problem of damage to the dam body caused by wind and waves, and at the same time dissipates energy from wind and waves to minimize the height of wind and waves. Conventional slope protection uses block stones, strip stones, rubble materials, and prefabricated or cast-in-place materials are also used. Concrete slab slope protection, due to the technical requirements and aesthetic needs of the upstream slope protection of the dam, dry stone slope protection is used, which has very strict requirements on stone materials. Generally, the transportation distance of stone materials is long, and the price of stone materials is relatively expensive. The cost per unit area of ​​slope protection is close to or exceeds the cost of concrete structures. Moreover, the construction speed is slow by manual work, the quality is difficult to guarante...

Embodiment 3

[0041] Example 3: Masonry gravity retaining wall face protection project:

[0042] For the gravity retaining wall below 2.5m in height, the assembled hexagonal mortar masonry prefabricated block structure can be directly adopted, and the prefabricated block can be a regular hexagonal body with a parallel side distance of 80cm. When there is no other load, the thickness of the regular hexagonal body is 90cm, and the regular hexagonal body is provided with two transverse key grooves, so there is no need for a drainage structure behind the wall.

[0043] For higher retaining walls, regular hexagonal masonry prefabricated blocks of the above size can be selected as the protective surface. The inner side of the prefabricated block is rough, and if necessary, steel anchors or double pulls can be used to form a stable whole. The wall can be filled with natural graded stone in layers, and then masonry with mortar or cement mortar to form a gravity retaining wall structure.

[0044]...

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Abstract

The invention discloses a construction method for a fill mortar junction stone dam of a mortar stone precast block masonry dam shell. The method comprises the following steps of: pre-casting natural graded stone into hexagonal prism mortar stone precast blocks; building the hexagonal prism mortar stone precast blocks into a dam shell with a crane or other hoisting equipment at upstream and downstream positions of the fill mortar junction stone dam; and filling a dam body in the dam shell at one time with a fill mortar junction stone dam construction method to form a fill mortar junction stonedam body. By adopting the method, local natural stone can be fully utilized; the method has the advantages of simple construction process, high construction speed, low construction cost and contribution to energy conservation and environment friendliness; the dam shell has the advantages of selectable shape and strong stereoscopic impression; and more significantly, an arch action can be achievedafter masonry of the hexagonal prism precast blocks, the stress distribution can be adjusted automatically, and the stability of the dam shell is enhanced. Meanwhile, the technology can be widely applied to dam shells, debris retaining dam protective coverings and the like of gravity dams such as dyke revetments, flood prevention and tide protection banks, masonry retaining wall protective coverings, cemented masonry dams or fill mortar junction stone dams and the like.

Description

technical field [0001] The invention relates to an improved construction method of a scour-filled mortar concretion dam, in particular to a construction method of a scour-fill mortar concretion dam in which a dam shell is built with masonry prefabricated blocks. The operation of masonry dam shell with masonry prefabricated blocks can also be widely used in embankment slope protection, flood control and anti-tide revetment, masonry retaining wall face protection, masonry stone dam and other gravity dam shells, slag retaining dam face protection, etc. construction. Background technique [0002] At present, compared with concrete dams, masonry masonry dams can reduce certain costs, have lower requirements on foundation rock conditions, and can make full use of local raw material resources, so they are widely used in hydraulic construction and other fields. However, due to the inconvenient use of mechanized construction for masonry masonry structures, which are mainly manual op...

Claims

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Application Information

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IPC IPC(8): E02B7/08E02B3/14
Inventor 李千李珍子姜国辉王生马德新仲立新纪志军鲁林黄志良
Owner 沈阳乾玉水利有限公司
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