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Which best material for backfill of retaining wall?
What are the method for finding Bearing capacity of soil?
The different methods for finding bearing capacity of soil are as follows :- 1. Presumptive analysis 2. Analytical method 3. Plate bearing test 4. Penetration test 5. Modern testing method 6. Centrifuge test
The different methods for finding bearing capacity of soil are as follows :-
1. Presumptive analysis
2. Analytical method
3. Plate bearing test
4. Penetration test
5. Modern testing method
6. Centrifuge test
What is a triaxial test? Why it is significant to know soil property? and which type of property?
Triaxial test ; The triaxial test is one of the most versatile and widely performed tests in the geotechnical laboratory. It allows shear strength and stiffness of soil and rock to be determined for use in geotechnical design. - Procedure of triaxial test :- The triaxial test typically involves subjRead more
The triaxial test is one of the most versatile and widely performed tests in the geotechnical laboratory. It allows shear strength and stiffness of soil and rock to be determined for use in geotechnical design.
– Procedure of triaxial test :-
The triaxial test typically involves subjecting a cylindrical specimen of soil, whose diameter ranges from 38mm to 100mm, into a cell that can be pressurized. Most of the specimens have an approximate 2:1 height to dia ratio and are sealed with a rubber membrane. The specimen preparation generally depends upon the type of soil. Cohesive soil samples are prepared directly from saturated compacted samples, either undisturbed or remolded. The specimen for cohesion-less soil is prepared with the help of the mold that maintains the required shape of the specimen.
And then the specimen is vertically covered with a thin rubber membrane and placed between two rigid ends inside a pressure chamber. The upper plate can move vertically and apply vertical stresses to the specimen. The axial stress/strain of the sample is controlled by the movement of this vertical axis. The water pressure surrounding the sample in the pressure chamber controls the confining pressure. Also, the volume change of the sample is controlled by measuring the exact volume of moving water.
There are three primary triaxial test carried out in a laboratory, depending upon the combination of loading and drainage condition ;
Triaxial test is significant to know soil property because it determines the ability of soil to resist shear stress and strain. Different combination of confining and axial stresses can be applied. Drained and undrained test can be carried out. The types of properties of soil which can be known by triaxial test are followed ;
What is the difference between black cotton soil and clay?
Black Cotton soil ; Black Cotton Soil is a heavy clayey soil, varying from clay to loam.The black color in black cotton soil is due to the presence of Titanium Oxide in a little concentration. Generally, it is light to dark appearance. Found in central and southern parts of India. Clay SOIL; Clay soRead more
Black Cotton soil ; Black Cotton Soil is a heavy clayey soil, varying from clay to loam.The black color in black cotton soil is due to the presence of Titanium Oxide in a little concentration. Generally, it is light to dark appearance. Found in central and southern parts of India.
Clay SOIL; Clay soil is composed of very small fine particles and not much organic in nature. It contains clay minerals which, when get wet, develops plasticity. Clay minerals have hydrous Aluminium phyllosilicates.
See lessExplain the construction & use of New Mark’s influence chart?
Hi devilart, This method is used to compute the vertical and horizontal stresses of any shape ,irregular geometry below any point outside or inside The chart as shown in the above figure essentially consists of n no. of radial lines and m no. of concentric circles. To find out vertical stressRead more
Hi devilart, This method is used to compute the vertical and horizontal stresses of any shape ,irregular geometry below any point outside or inside
The chart as shown in the above figure essentially consists of n no. of radial lines and m no. of concentric circles.
To find out vertical stress at any point below or outside the loaded area, Plan of the loaded area is drawn such that depth Z at which stress is being computed equals the length AB as shown on
N = No. of blocks. Bina Nusantara.
Further, the plan is placed over influence chart such that the point below which stress is required coincides with the center of chart Then count the number of influence area (N) covered by the plan
See lessHow to measure loads and pressures on geotechnical structures?
Please be specific about your question. Provide more details to get answers.
Please be specific about your question. Provide more details to get answers.
See lessWhy abutment in bridge is designed as earth pressure and rest condition?
Abutment in bridge is designed as earth pressure and rest condition because abutments support the ends of the bridge and transfer the loads from the superstructure in to the ground. The abutments also support the bearing devices and the backwalls Moreover, bridge abutments connect the deck, or surfaRead more
Abutment in bridge is designed as earth pressure and rest condition because abutments support the ends of the bridge and transfer the loads from the superstructure in to the ground. The abutments also support the bearing devices and the backwalls Moreover, bridge abutments connect the deck, or surface of the bridge, to the ground and help support its weight both horizontally and vertically. On short bridges, one abutment is placed at either end of the bridge and connected to the embankment, sometimes including a retaining wall.
See lessAn auditorium of size 42m x 25m is under construction, whose plinth is completed and backfilling is in process. The client has requested for compaction test of the backfill. The compaction test is carried out by the core cutting method. How ...
nikeetasharma
Thus when it comes to backfill, it refers to the dirt behind the wall. In order to provide proper drainage, atleast 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall. Compacted native soil can be used to backfill the rest of the space behindRead more
Thus when it comes to backfill, it refers to the dirt behind the wall. In order to provide proper drainage, atleast 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall. Compacted native soil can be used to backfill the rest of the space behind the wall.
See less