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A Calculation Method of Spoil Rate of Large-scale Earthwork

A technology of spoil rate and earthwork, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effect of practical cost

Active Publication Date: 2016-09-07
HUNAN LIANSHAO CONSTR ENG GRP
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for calculating the spoilage rate of large-scale earthworks to solve the technical problem of accurately measuring the bulk density and natural density of spoilage through the method of on-site test measurement, thereby accurately calculating the spoilage rate

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  • A Calculation Method of Spoil Rate of Large-scale Earthwork

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Embodiment Construction

[0013] In large-scale earth-rock blasting mining projects, the spoil rate is the volume ratio of the spoil volume to the entire mining mountain. Due to the different measurement methods of spoil and qualified stone in the actual mining process, the measurement units are not uniform. In order to unify the measurement units , the key is to accurately measure the density of the spoil, there are many densities of the spoil, here mainly the loose density, bulk density and natural density of the spoil.

[0014] Spoiled slag is a combination of soil, rock debris and unqualified stones. It is transported to the slag discharge yard by a transport vehicle and accumulated layer by layer. Due to the long accumulation time and frequent rolling by vehicles, its bulk density is greater than the loose density of the spoiled slag. , but less than its natural density before digging on the mountain. Since the spoil may be mixed with larger pieces of 20-30cm broken rock, it is required to take a ...

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Abstract

The invention discloses an accounting method of residue rate of large earthwork. The accounting method comprises the following steps: firstly, measuring and calculating the stacking density of muck, selecting a level ground with a flat surface inside a slag discharge field of requiring measuring the volume, digging out a pit with fixed depth; paving a plastic film in the dug pit; fully filling the dug pit by accurately metered water, so as to ensure that the water level is flush with the outer surface of the pit; and counting the net amount of the water poured into the pit. The volume of the muck is equal to the volume of the water, so that the stacking density of the muck is equal to the result of the mass of the muck divided by net weight of the water; then the residue rate is measured and calculated; the mass ratio of the residue rate is equal to the ratio of the mass of waste slag and the sum of the mass of qualified stones and the waste slag; the volume ratio of the residue rate is equal to the ratio of the volume of the waste slag and the sum of the volume of the qualified stones and the volume of the waste slag. By adopting the accounting method, the technical problem that the stacking density and the natural density of the waste slag are accurately measured by a field test measurement method so as to accurately calculate the residue rate can be solved.

Description

technical field [0001] The invention relates to an accounting method for the dreg ratio of large-scale earthworks in blasting quarrying engineering, in particular to an experimental method for calculating the dregs ratio of earthworks by measuring the density of the dregs through on-site experiments of large-scale earthworks. Background technique [0002] In blasting quarrying engineering, the spoil rate is an important parameter in earthwork engineering, especially in large-scale earthwork engineering, it is an important index to measure the blasting effect of the project. The spoil ratio is the ratio of the spoil to the whole quarry mountain, which can be volume ratio or mass ratio, generally speaking, it refers to the volume ratio. For the same mountain, a high rate of spoilage indicates that there are few qualified rocks that can be mined from the mountain, and a low rate of spoils means that the blasting effect is good and more qualified rocks can be mined from the moun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N9/36
Inventor 刘翼郑炳旭李战军崔晓荣罗伟涛
Owner HUNAN LIANSHAO CONSTR ENG GRP
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