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Large-volume backfill structure of hydraulic building

A hydraulic construction and large-volume technology, applied in filling and other directions, can solve problems such as poor economy, poor integrity, and increased investment, and achieve the effects of improving anti-seepage performance, fast construction speed, and accelerated construction speed

Inactive Publication Date: 2017-05-31
POWERCHINA BEIJING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the amount of backfill is large, the investment of all concrete backfill will increase more, and the economy is poor; while the integrity of the backfill structure with gravel soil and other materials is poor, and the drainage problem in the area must also be solved.

Method used

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  • Large-volume backfill structure of hydraulic building

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0016] Such as figure 1 As shown, the large-volume backfill structure of a hydraulic structure of the present invention includes a concrete material area 1 located outside the structure to meet the requirements of structural strength and durability; a sand and gravel cementitious material area 2 located in the backfill area inside the structure; concrete material Metamorphic sand and gravel area 3 is set between the interface of area 1 and sand and gravel cementitious material area 2, and between the interface of sand and gravel cementitious material area 2 and the foundation.

[0017] The sand and gravel cementitious material area 2 needs to use compaction equipment and adopt layered rolling method for construction.

[0018] The area of ​​the sand and gravel cementitious material area 2 meets the requirements of the rolling construction for th...

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Abstract

The invention discloses a large-volume backfill structure of a hydraulic building. The large-volume backfill structure comprises a concrete material portion required by the structural strength and the durability, a sand gravel cementitious material portion in an internal backfill zone and modified sand gravel zones. The large-volume backfill structure has the advantages that the large-volume backfill structure is different from conventional methods of general engineering, the portion required by the structural strength and the durability is made of conventionally used concrete materials, and local positions of internal backfill materials are made of sand gravel cementitious materials; the sand gravel cementitious materials have low requirements on various indexes of raw materials, accordingly, sand gravel materials and engineering waste slag materials around engineering zones can be sufficiently utilized by the large-volume backfill structure with the structural form on the premise that requirements on the structural safety and normal service functions are met, lands occupied by construction waste slag can be reduced, environmental pollution can be abated, and the large-volume backfill structure is excellent in economical efficiency and has excellent reference significance for other similar engineering.

Description

technical field [0001] The invention relates to a backfill structure, in particular to a large-volume concrete backfill structure for hydraulic structures. Background technique [0002] The usual method for large-volume backfill structures of hydraulic structures is: the entire structure is backfilled with concrete; or according to structural requirements, concrete is used externally, and some internal parts are backfilled with materials such as gravel and soil. When the amount of backfill is large, the investment of all concrete backfill will increase more, and the economy is poor; while the integrity of the backfill structure with gravel soil and other materials is poor, and the drainage problem in the area must be solved. If the structure needs to retain water and the water level on the water surface is high, the water will pour back into the backfilled gravel along the drainage structure set in the gravel soil. When the water level drops, if the backfill area is not drai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/18
CPCE02D17/18
Inventor 邓毅国林健勇高永辉李准林易澍黄海峰王佳林彭战旗
Owner POWERCHINA BEIJING ENG
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