Anchoring structure and construction method of red mud stockyard rock slope impermeable layer
A technology for anchoring structures and anti-seepage layers, which is applied in infrastructure engineering, excavation, protection devices, etc., can solve problems such as difficult operations, damage to anti-seepage layers, and large engineering volumes, so as to reduce environmental and health risks and reduce engineering costs. The effect of volume and easy operation
Inactive Publication Date: 2017-05-10
GUIYANG AL-MG DESIGN & RES INST
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide an anchoring structure and construction method for the anti-seepage layer of the rock foundation slope of the red mud storage yard, which can reduce the amount of leveling excavation of the rock slope field and avoid the difficulty of operation on the rock slope Excavation of large anchor trenches to overcome the shortcomings of existing technologies such as large engineering volume, difficult operation, high investment, and easy damage to the anti-seepage layer, resulting in environmental pollution and even health hazards
Method used
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[0036] The width of the base surface 1 of the anchoring platform shall not be less than 3m.
[0037] The corners of the base surface of the anchoring platform are set with arc corners 2, and the arc radius is 0.3m.
[0038] The anchor points are arranged at intervals of 2-3m along the surface of the anchor platform 4 .
[0039] Leveling shotcrete 3 material is M7.5 cement mortar.
[0040] The model of flat steel 7 is flat steel 8*100mm, and the length is 1.0m.
[0041] The specification of the expansion bolt 8 is M16*185mm.
[0042] The material of concrete 9 is C15 or C20, and the structural size is 1.6m*0.6m*0.2m.
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Abstract
The invention discloses an anchoring structure and construction method of a red mud stockyard rock slope impermeable layer. The anchoring structure includes an anchoring platform basal surface (1) which is arranged on a site slope; the anchoring platform basal surface (1) has arc corners (2); sprayed grout (3) is arranged on the anchoring platform basal surface (1); an anchoring platform surface (4) for paving an impermeable layer is formed on the sprayed grout (3) in a flat manner; the impermeable layer (6) is paved on the anchoring platform surface (4); the impermeable layer (6) is anchored in a drilled hole (5) through flat steel (7) with holes and expansion bolts (8); and concrete (9) is arranged above the flat steel (7) and the expansion bolts (8), and can cover exposed parts of the flat steel (7) and the expansion bolts (8). The anchoring structure and the construction method can effectively complete anchoring of the impermeable layer on a batholiths slope, can reduce the digging amount of a rock slope site, can avoid difficult anchoring ditch digging on the rock slope, and can reduce damage to an environment and health due to an destroyed impermeable layer.
Description
technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to an anchorage structure and a construction method for an anti-seepage layer of a rock foundation slope of a red mud storage yard. Background technique [0002] Red mud belongs to Class II general solid waste, and its pH value is greater than 11.0. At present, land storage is mainly used in China. Since the attached liquid of red mud is alkaline, the anti-seepage requirements for the storage yard are relatively high. The anti-seepage membrane usually adopts a permeability coefficient of ≤10-12cm / s, and the storage yard forms an overall anti-seepage, and there must be no leakage of the attached liquid, which may cause some Serious environmental pollution and health hazards. [0003] At present, the number of alumina plants in the south of China is gradually increasing, and most of the red mud storage yards are valley-type storage yards, and the mountain slope...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02D31/00E02D17/20
CPCE02D31/004E02D17/20
Inventor 杨小全罗先进徐明明
Owner GUIYANG AL-MG DESIGN & RES INST