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Advantages:
1) The test's simplicity and, in the case of sands, the ease of specimen preparation.
2) The travel of the machine can be reversed to determine the residual shear strength values, which is shear strength parameters at large displacements.
3) Shear box represents a cheaper method in determining the drained shear strength parameters for coarse-grained soil. Preparing soil samples for other testing methods is relatively difficult and expensive.
disadvantages:
1) The main one: drainage conditions cannot be controlled.
2) As pore water pressure cannot be measured, only the total normal stress can be determined, although this is equal to the effective normal stress if the pore water pressure is zero.
3) Only an approximation to the state of pure shear is produced in the specimen and shear stress on the failure plane is not uniform, failure occurring progressively from the edges towards the center of the specimen.
4) The area under the shear and vertical loads does not remain constant throughout the test.
What else can I help you with?
If you are a geotechnical engineer in what situations would you specify shear box testing as an aid to geotechnical design?
Shear box tests are used to derive the following soil properties:The peak shear strengthAThe residual shear strength (may also be referred to as the critical state)BThe cohesion (where applicable)CThe friction angleDA Derived by plotting the shear stress vs. horizontal strain and finding the maximum shear stress value.B Derived as above, but from the post peak horizontal portion of the stress strain curve.C Derived from a plot of peak shear stress vs. normal stress and is equal to the shear stress where the line of best fit intersects the shear stress axis. NB for cohesionless materials such as clean sands or gravels this value will be zero.D Derived from same plot as C but is calculated by Tan-1((Shear stress - Cohesion) / Normal stress)).Please see the related link for further information.
What is the definition for line weight?
Line weights are different type of lines lighter and darker. for example if you wanted to make a box, the box itself will have to have darker lines but the flaps that will hold your box together will have to be lighter. sorry if not so detailed but hard to explain
What is the difference between box culvert and pipe?
Basically, a culvert means a covered hydraulic structure which conveys fluid. Therefore in a broad sense, pipe culverts in a small scale represent normal pipes like precast concrete pipes. In terms of hydraulic performance, circular section is the best geometrical sections among all. Therefore, for relative small discharge, precast concrete pipes and ductile iron pipes are normally used which are circular in shape. But for applications of very large flow, precast concrete pipes and ductile iron pipes may not be available in current market. In this connection, cast-in-situ construction has to be employed. It is beyond doubt that the fabrication of formwork for circular shape is difficult when compared with normal box culvert structures. However, circular shape is the most hydraulic efficient structure which means for a given discharge, the area of flow is minimum. Therefore, it helps to save the cost of extra linings required for the choice of box culverts. However, box culverts do possess some advantages. For example, they can cope with large flow situation where headroom is limited because the height of box culverts can be reduced while the size of pipe culverts is fixed. Secondly, for some difficult site conditions, e.g. excavation of structure in rock, for the same equivalent cross-sectional area, the width of box culverts can be designed to be smaller than that of pipe culverts and this enhances smaller amount of excavation and backfilling
What are the types of culvert?
1. Pepe culvert 2. box culvert 3. slab culvert 4. arch culvert
Stone or brick floor of a fireplace?
Personally, I like stone. It gives that home feeling and is more durable and lasts longer than brick.
Differences between triaxial test and shear box test?
Shear box tests are generally suitable for cohensionless soil except fine sand and silt whereas triaxial test is suitable for all types of soils. Pressure changes and volume changes can be measured directly in triaxial test which is not possible in shear box test. Pore water pressure can be measured in the case of triaxial test which is not possible in direct shear test. Triaxial machine is more adaptable. The stress distribution across the soil sample in the failure plane is more uniform in triaxial test. The complete state of stress is known at all intermediate stages up to failure during the triaxial test whereas only the stress at failure are known in the direct shear test. In triaxial test, there is complete control over the drainage conditions, where control of drainage conditions is very difficult in shear box test.
What the advantages and disadvantages of cardboard?
An advantage of cardboard is that cardboard can be made into a box to protect things and is recyclable. A disadvantage of cardboard is that it is easily damaged.
What are the advantages and disadvantages of cardboard?
An advantage of cardboard is that cardboard can be made into a box to protect things and is recyclable. A disadvantage of cardboard is that it is easily damaged.
If you are a geotechnical engineer in what situations would you specify shear box testing as an aid to geotechnical design?
Shear box tests are used to derive the following soil properties:The peak shear strengthAThe residual shear strength (may also be referred to as the critical state)BThe cohesion (where applicable)CThe friction angleDA Derived by plotting the shear stress vs. horizontal strain and finding the maximum shear stress value.B Derived as above, but from the post peak horizontal portion of the stress strain curve.C Derived from a plot of peak shear stress vs. normal stress and is equal to the shear stress where the line of best fit intersects the shear stress axis. NB for cohesionless materials such as clean sands or gravels this value will be zero.D Derived from same plot as C but is calculated by Tan-1((Shear stress - Cohesion) / Normal stress)).Please see the related link for further information.
What is shear lag in a box girder?
A delay or slow response in developing shear flow reactions to applied loads
What are the advantages and disadvantages of cakes?
Advantages - not too hard to make, commonly enjoyed taste, usually inexpensive to make (buy a box and icing, for example), fun to bake, fun to decorate, used for celebration (birthday, wedding, ect.) Disadvantages - high in calories, not very nutritious / good for you, can be expensive and complex
What are the disadvantages of GLC?
your mums box
What are advantages and disadvantages of box plots?
They are very simple visual representations of data. Their simplicity is their advantage as well as their disadvantage: they are easy to produce and to understand. But they convey rather a limited amount of information.
What is white box testing in software engineering?
White box testing is when the tester has full access to and knowledge of the unit under test. Black box testing is when he doesen't and is only allowed to enter inputs and verify outputs. Each has advantages.
How do you get fox's test box on sims 2?
You can download the fox's test box from the site, Posebox.livejournal. Fox's test box is a type of pose box that is used in the Sims 2.
How do you calculate shear force and bending moment for the cantilever wing box structure?
Cry man, cry!
What has the author M P Chandler written?
M. P. Chandler has written: 'An open-sided field direct shear box with applications in geomorphology' -- subject(s): Shear strength of soils, Testing
