SELECTION OF THE OPTIMUM BLAST PARAMETERS FOR BENI-KHALID LIMESTONE QUARRY TO REDUCE THE FINE PRODUCT

الموضوعات

علوم بحتة وطبيعية

الملخص

A scientific work directed to select optimum blast parameters, investigate the factors influencing the fine size 5 and to present some means by which the fine size percentage can be reduced in Beni-khalid limestone quarry. A computer technique and field experimental have been used, and a computer model of blast has been developed.

روابط وملفات

التعريف والنوع

رقم الوثيقة

10200

رقم المصدر

122291

رمز المصدر

BK00010200-001

رقم العقد

340

نوع الوسائط

AskZad

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

ورقي

أسماء الملفات

11222910001.pdf

بيانات النشر

ترجمة العنوان

دراسة عن تحديد انس معاملات التثقيب و التفجير لمحاجر بنى خالد بتقلل نسبة المنتج الناعم

ألقاب المؤلفين

[{"name_ar":"سيد أحمد أمين","name_en":"Sayed Ahmed Amin","title_ar":"مؤلف","title_en":"Author"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

SELECTION OF THE OPTIMUM BLAST PARAMETERS FOR BENI-KHALID LIMESTONE QUARRY TO REDUCE THE FINE PRODUCT

المحتوى والصفحات

عدد الصفحات

130

رقم الجزء

0

أبعاد الوثيقة

22 × 30

التصنيف العام

متخصص

جدول المحتويات

1- Introduction
 1
 2- Literature review
 4 A- General informartion about Beni-Khalid quarry
 4 1- site, climate and power supply
 4 2- Geological characteristics of the deposite
 5 3- Hydrogeological and engineering characteristics of limestone units
 7 4- Physico-mechanical characteristics of rocks
 8 5- Technology of mining system used
 11 6- Crushing plant
 12 B- Principles of rock blasting
 12 1- Mechanism of rock blasting
 14 2- Factors influencing the design of blast
 15 3- Secondary blasting technique
 24 4- Plastic igniter cord for secondary blasting
 25
 3- Theoritical considerations
 28 Previous work
 28 A computer model study of optimum blast parameters for Beni-Khalid quarry
 31 A- Calculation of the drilling pattern
 31 B- Calculation of charges
 35 C- Deviation from the conditions
 36 D- Summary and modifications for the formulas applicable in Beni-Khalid quarry
 38 E- Drilling and blasting cost
 39 F- Output results
 43 1- Maximum burden
 31 2- Subdrilling
 32 3- Hole depth
 33 4- Practical burden
 33 5- Hole spacing
 34 6- Specific drilling
 34 1- Bottom charge
 35 2- Stemming
 35 3- Column charge
 35 4- Total charge /hole
 36 5- Specific charge
 36 1- Rock constant other than 0.4 kg/cu.m
 36 2- Degree of packing other than 1.25 kg/dn3
 37 3- Explosive other than dynamex B
 37 4- Hole inclination other than 3:1
 37 1- Analysis of results
 64
 4- Experimental procedure
 65 1- Operation processes which cause excessively fine %
 65 2- Factors influencing the fine percentages
 66 3- Some technical means to reduce the fine %
 69 4- Procedures of the work
 76
 5- Results
 78
 6- Conclusions and recommendations
 84

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