CN103389258B - A kind of accounting method of large-scale cubic metre of earth and stone waste rate - Google Patents
A kind of accounting method of large-scale cubic metre of earth and stone waste rate Download PDFInfo
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- CN103389258B CN103389258B CN201310344540.7A CN201310344540A CN103389258B CN 103389258 B CN103389258 B CN 103389258B CN 201310344540 A CN201310344540 A CN 201310344540A CN 103389258 B CN103389258 B CN 103389258B
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Abstract
The invention discloses the accounting method of a kind of large-scale cubic metre of earth and stone waste rate, its step is as follows: first, the bulk density of survey calculation dregs, smooth level ground, surface at need to be selected in the deslagging field of the side's of measurement amount, dig out the hole of a certain depth, plastic foil is spread in the hole dug, the hole dug is filled with the water through accurately metering, guarantee horizontal plane and hole flush with outer surface, add up clean consumption of pouring water in cheating, volume due to dregs is equal to the volume of water, then the bulk density of dregs is equal to the quality clean quality divided by water of dregs.Then survey calculation waste rate, the mass ratio of waste rate equal to waste quality and qualified building stones quality with waste quality and ratio, the volume ratio of waste rate be equal to waste volume and qualified building stones volume with waste volume and ratio.The present invention can solve to be accurately measured bulk density and the natural density of waste by the method that scene test is measured, thus accurately calculates the technical problem of waste rate.
Description
Technical field
The present invention relates to the accounting method to large-scale cubic metre of earth and stone waste rate in explosion quarry engineering, be specifically related to by large-scale soil
The field experiment of the cubic meter of stone measures the density of waste and adjusts a cubic meter experimental technique for waste rate.
Background technology
In explosion quarry engineering, waste rate is an important parameter in earth and rock works, particularly at the large-scale cubic metre of earth and stone
In engineering, weigh the important indicator of engineering explosion effect quality especially.Waste rate is the ratio of waste and whole quarrying massif,
Can be volume ratio or mass ratio, generally refer to volume ratio.For same seat massif, waste rate height explanation massif can
Adopting qualified building stones few, waste rate low explanation demolition effect is good, and the recoverable qualified building stones of massif are many.At conventional large-scale soil
In rock blasting engineering, before massif is exploited, often massif can be adopted qualified building stones and be estimated, it was predicted that massif is qualified
The output capacity of building stones or the waste rate of defective building stones.Owing to how many outputs of building stones qualified before commencement of works is difficult to comment
Estimate, the most typically assess the waste rate of engineering.The waste rate of engineering mainly by the working experience of appraiser according to rock mass
The physical propertys such as kind, rate of decay, cranny development degree are predicted.As rate of decay height then waste rate is big, qualified stone
The output capacity of material is the lowest, otherwise then waste rate is little, and the output capacity of qualified building stones is the highest.So result of prediction is the most accurate,
Often can not get checking accurately and effectively, because the basic data massif side amount needed for waste rate that calculates is due to the error measured
The most inaccurate very greatly, also the most doubtful by the reliability of its calculated waste rate.
In actual explosion quarry engineering, owing to being required to be limited by the control of cost and material feeding, explosion quarrying is closed often
Lattice building stones transport to stock ground after demolition site weighs, and so can accurately measure the quality of qualified building stones, and defective
The waste such as building stones and surflaes the most do not weigh metering directly transport deslagging field to, these waste heaps to a certain extent after the most together
Measurement side measures, and measures by measuring the side of waste, and the volume metering of waste is also the most accurately.But it is identical that waste rate requires
The ratio of unit, waste rate to be calculated, it is necessary to waste side's amount is converted into quality or by qualified building stones mass conversion
Cheng Fangliang.But owing to natural density and the bulk density difference of waste are very big, therefore the accurate computational methods of waste rate are
Waste side's amount is converted into quality, calculates the waste rate of mass ratio, or converse abandon by measuring the natural density of waste
The natural volume of slag, calculates the waste rate of volume ratio.In any case, the density accurately measuring waste is to calculate waste rate
Whether accurate key.
Summary of the invention
It is an object of the invention to provide the accounting method of a kind of large-scale cubic metre of earth and stone waste rate, to solve to be measured by scene test
Method accurately measure bulk density and the natural density of waste, thus accurately calculate the technical problem of waste rate.
In order to realize foregoing invention purpose, the method applied in the present invention is as follows:
1, the bulk density of survey calculation dregs, need to the side of measurement amount deslagging field in select surface at smooth flatly
Face, digs out the hole of a certain depth, is collected and claims its net weight by the dregs dug out, digging during digging pit in hole
Spread plastic foil in good hole, fill, with the water through accurately metering, the hole dug, it is ensured that horizontal plane and hole flush with outer surface,
Adding up clean consumption of pouring water in cheating, owing to the volume of dregs is equal to the volume of water, and the proportion of water is 1, then the accumulation of dregs is close
Degree is equal to the quality clean quality divided by water of dregs；
2, survey calculation waste rate, the volume of waste is drawn by measurement, then the quality of waste is calculated by bulk density
Come, and the quality of qualified building stones is by weighing metering, directly comes out, then the mass ratio of waste rate is equal to waste matter
Measure with qualified building stones quality with waste quality and ratio；The natural density of waste is measured, by inciting somebody to action with same method test
The mass conversion of waste becomes natural volume, and the density of qualified building stones is drawn by measurement, by quality being wholly converted into
Volume, then can calculate the volume ratio of waste rate equal to waste volume and qualified building stones volume with waste volume and ratio.
The described generally circular in shape and smooth surface digged pit, diameter and the degree of depth are in the range of 40cm-60cm.
The described experiment digged pit is counted and to be arranged representative some according to deslagging field actual conditions, passes through valid data
Analyze their mean value as end value.
Advantages of the present invention is as follows:
The method that the present invention is measured by scene test, accurately measures bulk density and the natural density of waste, solves
Calculate the problem of accurately measuring of key foundation data of waste rate, the most on-the-spot test measure also have simple, practical with become
The effects such as this is low.
Accompanying drawing explanation
Fig. 1 is the water filling structure schematic diagram of digging pit of the experimental measurement method of the waste bulk density of the present invention.
Detailed description of the invention
In large-scale soilstone ratio exploitation engineering, waste rate is the volume ratio that waste amount accounts for whole exploitation massif, due to
In actual recovery process, waste is different with the metering method of qualified building stones, causes measurement unit disunity, in order to unify meter
Amount unit, it is important to the density of waste to be accurately measured, the density of waste has multiple, and the most mainly waste is loose
Density, bulk density and natural density.
Waste is soil, rock debris and the combination of defective building stones, is to transport behind deslagging field heap layer by layer by transport vehicle
Amass, roll frequently owing to piling up time length, automobile, its bulk density more than the loose thickness of waste, but be less than its
The natural density before dress is dug on mountain.Owing to waste being likely mingled with the detritus of relatively large 20～30cm, therefore it is required that fetch earth
Scope relatively big (diameter and the degree of depth about about 50cm), thus can not use core cutter method and wax seal method, additionally job site
The restriction of condition does not has normal sand, and therefore douche experiment is measured more convenient, and waste is described below as a example by douche
The test measuring method of bulk density.
Smooth level ground 1, surface at need to be selected in the deslagging field of the side's of measurement amount, mark a diameter about with crooked chisel
The circle 2 of 50cm, digs out the round pool 3 of a deep 50cm in circle with sheep pick, the institute will dug out in hole during digging pit
There is dregs 4 to collect and claim its net weight mSlag, in the hole dug, spread plastic foil 5, gently press with hand and make plastic foil be close to cheat wall,
But avoid cheating interior landwaste and scratch plastic foil, fill, with the water 6 through accurately metering, the hole dug, it is ensured that horizontal plane and hole
Flush with outer surface, pour water in statistics hole clean consumption mWater, and the density of water is 1, then the volume of water is vWater=mWater.By
Volume in dregs is equal to the volume of water, i.e. vSlag=vWater, then bulk density ρ of dregsPile up=mSlag/vSlag.Waste
Volume VSlagCan be drawn by measurement, then quality m of wasteSlag=ρPile up·vSlagCan calculate, and qualified
Quality m of building stonesStoneBy metering of weighing, can directly come out, then the mass ratio of waste rate can calculate,
I.e. waste rate r of mass ratiom=mSlag/ (mSlag+mStone).The natural density measuring waste can be tested with same method
ρ is natural, and by the mass conversion of waste is become natural volume, and the density of qualified building stones is easy to be measured by drainage,
By being wholly converted into volume, then can calculate the waste rate of volume ratio
rv=vSlag/ (vSlag+vStone).
According to above dregs density measuring method, arrange according to actual conditions in intending the deslagging field measured and several there is representative
Property point test, all data are carried out efficiency analysis, using their mean value as test end value.?
When need to select to dig pit in the deslagging field of the side's of measurement amount, the different position on same plane can be selected, it is also possible to selection
The plane that the bottom in big or middle hole is limited is tested.The described experiment digged pit is counted will be according to deslagging field actual conditions
Representative some is set, by valid data analysis using their mean value as end value.
Claims (1)
1. an accounting method for large-scale cubic metre of earth and stone waste rate, its step is as follows:
1), the bulk density of survey calculation waste, smooth level ground, surface at need to be selected in the deslagging field of the side's of measurement amount, dig out the hole of a certain depth, during digging pit, the waste dug out in hole is collected and claimed its net weight, plastic foil is spread in the hole dug, the hole dug is filled with the water through accurately metering, guarantee horizontal plane and hole flush with outer surface, add up clean consumption of pouring water in cheating, volume due to waste is equal to the volume of water, then the bulk density of waste is equal to the quality clean quality divided by water of waste；
2), survey calculation waste rate, the volume of waste is drawn by measurement, then the quality of waste is calculated by bulk density, and the quality of qualified building stones is by weighing metering, directly come out, then the mass ratio of waste rate equal to waste quality and qualified building stones quality with waste quality and ratio；The natural density of waste is measured with same method test, by the mass conversion of waste is become natural volume, and the density of qualified building stones is drawn by measurement, by quality is wholly converted into volume, then can calculate the volume ratio of waste rate equal to waste volume and qualified building stones volume with waste volume and ratio；
The described generally circular in shape and smooth surface digged pit, diameter and the degree of depth are in the range of 40 cm-60 cm；
The described experiment digged pit is counted and to be arranged representative some according to deslagging field actual conditions, by valid data analysis using their mean value as end value；
When selecting to dig pit in the deslagging field of the side's of measurement amount, the different position on same plane can be selected, it is also possible to select to test in the limited plane in the bottom in big or middle hole.
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Effective date of registration: 20160628 Address after: 511300 Guangdong city of Guangzhou province Zengcheng River Street Light Lianyi Village Road No. 28 Applicant after: Grand mining industry company limited Address before: 510623 Guangdong city in Guangzhou Province, the Pearl River Metro Huaxia Road No. 49 building, 21 floor of the North Tower of Tianjin Binhai vault Applicant before: Guangdong Hongda Blasting Co., Ltd. |
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Effective date of registration: 20191202 Address after: 417000 Loudi City, Hunan province Louxing Xiang Yang Xi Jie (Lianshao group office building 5 floor) Patentee after: Hunan Lianshao Construction Engineering (Group) Co., Ltd. Address before: 511300 Guangdong city of Guangzhou province Zengcheng River Street Light Lianyi Village Road No. 28 Patentee before: Grand mining industry company limited |
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