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Construction method for underground outlet gallery of assembled concentration tank of aluminum alloy corrugated plates

A construction method and aluminum alloy technology, which is applied in large-capacity bulk material storage, building types, buildings, etc., can solve the problems of large amount of scaffolding, long construction period, and long labor time, so as to reduce construction links and reduce on-site construction Strength, reduce the effect of project cost

Inactive Publication Date: 2015-11-04
CHINA MCC20 GRP CORP
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AI Technical Summary

Problems solved by technology

The construction of cast-in-place concrete underground corridors requires a large amount of scaffolding, long labor time, numerous procedures, and a long construction period

Method used

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Embodiment Construction

[0012] In conjunction with the Western Australia SINO project, the present invention includes

[0013] (1) Cast-in-place 600mm thick culvert foundation floor

[0014] When constructing the cast-in-place reinforced concrete floor of the exit corridor, the aluminum alloy corrugated plate is pre-embedded on the concrete foundation at the feet of both sides of the arched culvert to connect and fix the L-shaped embedded parts. Since the aluminum alloy corrugated plates are all connected by bolts, appropriate fine-tuning can be performed during installation, and the installation deviation of the embedded parts is required to be within ±16mm, which meets the installation accuracy requirements of the aluminum alloy corrugated arched plates.

[0015] (2) Install aluminum alloy corrugated arc plate

[0016] The weight of a single piece of corrugated plate is 310kg, and 84 pieces are installed in each corridor, with a total of 26t. They are pre-fabricated at the factory and sent to the ...

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Abstract

The invention relates to construction of a concentration tank for a metallurgical mine project. A construction method for an underground outlet gallery of an assembled concentration tank of aluminum alloy corrugated plates comprises the following steps: 1, processing designated models of aluminum alloy arched corrugated plates in a factory, and transporting the corrugated plates to a site; 2, backfilling and compacting a bottom foundation of an outlet gallery bottom plate foundation, constructing the cast-in-situ concrete bottom plate foundation, and embedding arched corrugated plate embedding connectors into the bottom plate foundation; 3, assembling the aluminum alloy arched corrugated plates connected by bolts on a concrete bottom plate into an overall arched culvert structure by adopting hoisting equipment, and connecting and fixing the bottoms of the arched plates with the embedded parts of the bottom plate foundation; and 4, backfilling and compacting backfill earthworks on two sides and at the top of the arched culvert structure layer by layer. During backfilling, the two sides of the arched culvert should be stressed uniformly, to avoid deformation caused by high stress on a single side. The method can greatly shorten the construction period and reduce the cost.

Description

technical field [0001] The invention relates to the construction of a concentration pool for a metallurgical mine project, in particular to a construction method for an underground exit corridor of the concentration pool. Background technique [0002] The large thickening tank is an important equipment in metallurgical mine projects, and its structural main body generally includes three parts: bottom flow pump room, outlet corridor and thickening tank body. The exit corridor usually adopts cast-in-place reinforced concrete structure, which requires a large number of on-site construction workers to carry out reinforcement binding, formwork support, concrete pouring and maintenance. Especially for large concentration tanks, the amount of concrete work is large, the construction period is long, and the cost is relatively high. Taking the 90m-diameter floor-standing tailings thickening pond in the beneficiation area of ​​the SINO IRON iron ore project in Western Australia as an...

Claims

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Application Information

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IPC IPC(8): E04H7/18
Inventor 魏楠曹岳孟磊磊董世祎刘亮
Owner CHINA MCC20 GRP CORP
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