3. In which type of flowage, failure is easily visible? Explanation: In rapid flowage, however, the movement of failing mass may be easily visible and the mass may travel a few metres or more a day.

What is the type of landslide where surface of failure is planar?

A translational or planar landslide is a downslope movement of material that occurs along a distinctive planar surface of weakness such as a fault, joint or bedding plane. Some of the largest and most damaging landslides on Earth are translational. These landslides occur at all scales and are not self-stabilising.

What are fastest types of sediment flows?

Mudflows - these are a highly fluid, high velocity mixture of sediment and water that has a consistency ranging between soup-like and wet concrete. They move at velocities greater than 1 km/hr and tend to travel along valley floors.

Which type of strata is rare in occurrence?

Which type of strata is rare in occurrence? Explanation: Horizontal strata are rare in occurrence for longer tunnels. If they are countered for small tunnels or short lengths of long tunnels, horizontally layered rocks might be considered quite favourable.

What are the 4 types of mass wasting?

The most common mass-wasting types are falls, rotational and translational slides, flows, and creep.

Landslide and its different types

44 related questions found

What is the fastest types of mass wasting process?

A rock fall are the fastest of all landslide types and occurs when a rock falls through the air until it comes to rest on the ground—not too complicated. In Utah, they are common in the spring and fall because of freeze-thaw weathering.

What are the five types of mass wasting?

Types of mass wasting include creep, slides, flows, topples, and falls, each with its own characteristic features, and taking place over timescales from seconds to hundreds of years.

Which rock is most suitable for tunneling point of view?

Basic tunneling system

Tunnels are generally grouped in four broad categories, depending on the material through which they pass: soft ground, consisting of soil and very weak rock; hard rock; soft rock, such as shale, chalk, and friable sandstone; and subaqueous.

What are the 3 main types of folds?

There are three basic types of folds (1) anticlines, (2) synclines and (3) monoclines.

Which fold is convex upward?

An anticline is a fold that is convex upward, and a syncline is a fold that is concave upward.

Which of the following are types of slope failure?

Types of Slope Failure are as follows:

• Translational Failure.
• Rotational Failure.
• Flow Failure.
• Block or Wedge Failure.
• Rock Slope Failure.
• Plane Failure.
• Toppling Failure.
• Rock Failure.

Which mass movements is the fastest?

Landslides and avalanches can move as fast as 200 to 300 km/hour. Figure 3. (a) Landslides are called rock slides by geologists. (b) A snow avalanche moves quickly down slope, burying everything in its path.

Which type of mass movement is the most destructive?

The most destructive type of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope. Some landslides may contain huge masses of rock, while others may contain only a small amount of rock and soil.

Which type of landslide occurs on a curved and planar sliding surface?

Rotational slides (slumps) are landslides that oc- cur along a curved or spoon-shaped surface.

What is the difference between landslide and landslip?

As nouns the difference between landslip and landslide

is that landslip is the sliding of a mass of land down a slope or cliff; a landslide while landslide is a natural disaster that involves the breakup and downhill flow of rock, mud, water and anything caught in the path.

Is Avalanche a type of landslide?

An avalanche is a type of landslide involving a large mass of snow, ice and rock debris, often initiated by overload caused due to a large volume of new snowfall.

Which fold orientation is visible in Figure 2 quizlet?

Which fold orientation is visible in Figure 2? Overturned (Note how the limbs are dipping in the same direction, but at different angles.) A cross-section of a monocline is shown below.

What are the types of faults and folds?

Video lecture demonstrates the use of foam faults to demonstrate faults, and a deck of cards to demonstrate folds and fabrics in rock layers. Different types of faults include: normal (extensional) faults; reverse or thrust (compressional) faults; and strike-slip (shearing) faults.

What are 4 types of faults?

There are four types of faulting -- normal, reverse, strike-slip, and oblique. A normal fault is one in which the rocks above the fault plane, or hanging wall, move down relative to the rocks below the fault plane, or footwall.

Which shape of tunnel is easiest?

Rectangular Shaped Tunnels

For pedestrian traffic, rectangular shapes of tunnels are appropriate. These tunnels are sometimes accepted if pre-constructed R.C.C caissons are used. This types of tunnels not suitable to resist external pressure due to their rectangular shape and these are not in use these days.

What kind of things do you see in a tunnel when you are on foot?

The central portions of a rapid transit network are usually in the tunnel. Some tunnels are aqueducts to supply water for consumption or for hydroelectric stations or are sewers.

Which is the method of tunneling in hard ground?

Tunneling in hard rocks is carried by one the following methods: Full face method. Heading and benching method. Drift Method.

What are different types of mass movements?

There are four different types of mass movement:

• Rockfall. Bits of rock fall off the cliff face, usually due to freeze-thaw weathering.
• Mudflow. Saturated soil (soil filled with water) flows down a slope.
• Landslide. Large blocks of rock slide downhill.
• Rotational slip. Saturated soil slumps down a curved surface.

What is the fastest moving of the mass wasting processes quizlet?

The mass wasting phenomenon with the highest velocity is a mudflow. In the context of mass wasting, the term "debris" refers to any unconsolidated material at Earth's surface.