Room and Pillar Mining method
Q: Define Tschebotarioff method.
A: The Tschebotarioff method is based on the first approximate estimation by the Tschebotarioff and…
Q: Be aware of the problems that may occur during excavation and techniques to control them
A: There are some problems that may occur during excavation; Cave-in is the greatest risk in an…
Q: You wish to perform a Statnamic test on a 35 m long 0.5 m diameter concrete drilled shaft. How long…
A: The expression for stress wave number is given as Nw=cTL …… (1) Here, length of the pile is L,…
Q: Define Drilled shafts
A: Solution: Drilled shafts are the elements formed by creating a drilled hole into which structural…
Q: A crawler hoe having a 3 1/2 cy bucket and whose cost per hour, including the wages to an operator,…
A: Given: Bucket size=312cy Max. digging depth=26 ft Wages for operator=$ 130
Q: What type of machine is used in a quarry to cut rock into manageable sizes?
A: Majority of the stones used in construction industry are produced by cutting large blocks of rocks…
Q: Describe about the drilled (drilled and belled) pier, drilled (drilled and belled) caisson, or…
A: Foundations are defined as the sub-structure part of any structure is which used for uniform…
Q: What is the disadvantage of deep drilling?
A: Deep drilling are performed in offshore works to extract the oil inside the earth crust.
Q: What is the effect of duration of releasing the penetration needle? How does the size of the needle…
A: Penetration Test of Bitumen: It is used to find out hardness/softness of bitumen via means of…
Q: Briefly discuss the advantages of preloading methods?
A: The technique of pre loading was developed and is mainly was used in the projects connected to…
Q: Define difference between direct circulation drilling and reverse circulation drilling?
A: Direct Circulation drilling Generally used for the construction of small and medium diameter wells,…
Q: 1/ Do you prefer structural construction or non- structural construction (load bearing walls)? And…
A: General: Since you have asked multiple questions, we will solve the first question for you. If you…
Q: 3 specifications of a mine shaft headgear
A: Mineshafts are the hoisting instruments used to lift personnel, materials and machineries. The…
Q: How do the results you obtained differ (or not) for the two methods adopted (casagrande apparatus…
A: Casagrande apparatus and cone penetration methods are used to determine liquid limit of soil. The…
Q: What is the procedure for Rock Core Drilling?
A: Coring is done to gather samples of rock to analyze its geological characteristics. For the same…
Q: tis the volume in bbls for an onen bole of 5000 ft drilled with a 16" drilline hit?
A:
Q: Question 4 Identify the borehole technique that advances drilling into rock formation Hollow stem…
A: Rotary wash technique is similar to rotary drilling method is best suitable for drilling operations…
Q: what are the problems encountered in concrete caisson (25 ft dia) process up to a depth of 50 ft on…
A: Consider the free body diagram ;
Q: How does the Duration of agitation affect the analysis of particle size in the sieving…
A: Duration of agitation is the time for which the sieves are shaked to allow particles to pass through…
Q: You are excavating a location for the vault shown below.The top of the walls shown are 1 foot below…
A: Draw the location of excavation.
Q: what are the standard procedures in operating a drilling machine?
A: Drilling machine : a machine that drills, reams, counterbores, and taps holes, particularly: a…
Q: Hook load will be seen to reduce when the bit touches the bottom of the hole in vertical wells.…
A: Hook load will seen to reduce when the bit touches the bottom of the hole in vertical wells. This is…
Q: A project in medium silica, coarse-grain sandstone is being investigated. Field drilling tests…
A: Solution Given Data Penetration rate= 2 ft/min Blasting Pattern=10*10 ft Depth of subdrilling= 2 ft…
Q: Define yield of cement in slurry design. 8. Give the functions of centralizer and scratcher…
A: NOTE: Hi! Thank you for the question, As per the honor code, we are allowed to answer three…
Q: Why is it important for drilled shaft contractors to place the concrete soon after drilling the…
A: Concrete placement is one of the most important part of construction as a slightest mistake can…
Q: Describe the basic procedure of rotary drilling method and analyze its character.
A: Procedure: Rotary drilling entails penetrating into the Earth's surface with a sharp, spinning power…
Q: A B
A: If the slab is supported only on two opposite supports, which is bending in direction of the shorter…
Q: How are pacer mining, hydraulic mining, and hard-rock mining different?
A: Brief concept- Pacer mining, hydraulic mining, and hard-rock mining are different forms of mining.…
Q: b) Describe the following drilling methods and give advantages and disadvantages of each: solid i.…
A: Ansswe i. solid stem auger- This method typically utilizes a Claw Bit to advance solid stem auger…
Q: State the procedure of Percussion drilling ? Define the importance of Percussion drilling ?
A: Steel casing tubes are used in the drilling technique known as percussion drilling to prevent the…
Q: Discuss the following 1- The required properties of geological formation to determine its ability to…
A: The required properties of geological formation to determine its ability to form a good reservoir:As…
Q: Q5/ Determine the bit size needed for drilling to the depth of the surface casing of a well if the…
A: Types of casing are given below; Intermediate Structural. Linear Surface. Drive, or conductor. etc
Q: Explain Underreamed Shafts
A: Under-reamed Shaft: Shaft generally called as piles which are casted with concrete and steel in a…
Q: Problem - 2: In which case we are facing more uncertainty, when working with: a) Steel b) Concrete…
A: Concept- Uncertainty- It means the possible outcomes or values that may be obtained while doing…
Q: What are the pros and cons of test pits?
A: The pros of test pits are: It is one of the most economical means of soil exploration to shallow…
Q: Determine the area of the cross-section --- The volume of excavation and fill using end-area method
A:
Q: Explain the auger method and the wash boring method.
A: Making and advancing of bore holes is known as Boring. It is the first step for the collection of…
Q: situations in which drilled shafts would be preferable to driven pile foundations
A: Pile foundation : Pile foundation is needed in areas where the structures constructed are large and…
Q: Q.3/A Crawler hoe having a three Cyd bucket and whose cost per hour, including the wage to an…
A:
Q: You have drilled the first section (26" OH) using ppg mud and it was cased with 24" Casing (ID 23…
A:
Q: Why is it important for drilled shaft contractors to place the concrete soon after drilling the…
A: The main purpose of placing the concrete after drilling by the drilled shaft contractor is to avoid…
Q: functions of a drilling mud.
A: Drilling mud also called drilling fluid, in petroleum engineering a heavy viscous fluid mixture that…
Explain in detail the Room and Pillar Mining method and advantages and
disadvantages of this method.
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- Define sand-cone method.please show complete solution and fbd using VIRTUAL METHODFoundation engineering makes use of different ways of extracting and quantifying the data necessary for the designer to take them into account at the time of design and execution and, thus, seek the best solutions to develop their work. A. For the elaboration of a subsoil investigation plan, what elements should be considered? B. Identify the four most commonly used types of welds.
- Please answer this question: * What and how construction related factors would affect the bearing capacity and load transfer of drilled shaft foundations by using slurry method, dry method and casing method? (List and discuss as many relevant factor as you can).2 - A boring was taken and a split spoon sampler was advanced with a 140 pound donut hammer falling 30" to advance a split spoon sampler into the subgrade. The number of blows needed to advance the split spoon 18 inches at 6 inch intervals was 10 - 16 - 14. What is the SPT uncorrected N value.Explain Why is the initial drilling phase (surface section) critical?
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