What is a raker in construction?

A raker is basically an enormous kickstand for your shoring wall. These are easy to build, but they sit inside your excavation (instead of outside, as with a tieback) and make life difficult when you need to make a building around them.

Also asked, what are rakers?

Noun. raker (plural rakers) A person who uses a rake. A machine for raking grain or hay.

Furthermore, what is a tieback and why is it used? A tieback is a structural element installed in soil or rock to transfer applied tensile load into the ground. Grout is then pumped under pressure into the tieback anchor holes to increase soil resistance and thereby prevent tiebacks from pulling out, reducing the risk for wall destabilization.

Also to know is, what is a tieback in construction?

Tieback Anchors. Tieback Anchors are a construction element that is used to actively apply tensile forces to structures. Tiebacks can be used on new construction or to remediate existing structures. Tiebacks can be constructed out of strands of cable or reinforcing bar grouted into the soil.

What are the types of shoring?

The five common types of shoring that we usually encountered in the construction project are:

H or I-Beam Shoring.
Secant Pile Shoring.
Contiguous Pile Shoring.
Sheet Piles.
Diaphragm Walls.
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25 Related Question Answers Found

What are gill rakers used for?

Gill rakers in fish are bony or cartilaginous processes that project from the branchial arch (gill arch) and are involved with suspension feeding tiny prey. They are not to be confused with the gill filaments that compose the fleshy part of the gill used for gas exchange.

What is a raker beam?

Raker beams are angled, notched beams that support stadium riser units. They are used universally in outdoor stadiums and arenas and in many indoor arenas and performing-arts theater.

How is shoring done?

For our purposes, shoring is the process of supporting the underground walls of a building or trench with props (shores) when we're digging so that the soil doesn't cave in during the process of creating the foundation. Once the digging is complete, the shore is lowered into the ground.

What is a gill rake?

Gill Raker. Gill rakers are the finger-like structures projecting across the slit that help keep food from escaping through the slits or damaging the gills, which are the organs of gas exchange. From: The Dissection of Vertebrates (Second Edition), 2011.

What do the rakers do on a chainsaw?

Depth Gauge Maintenance On Pro Saw Chain. Depth gauges, "riders," or "rakers," as they are sometimes called, control the amount of wood severed by a cutter tooth. During the life of a pro saw chain, they occasionally need maintenance for top cutting performance.

What is braced excavation?

Braced Excavations. Search for: During construction of new facilities where open cuts are not feasible, braced excavations support the ground around foundation excavations to control deformation of adjacent structures, utilities, and soil.

Do all fish have gill rakers?

Gill arches:

Most fishes have gill arches. They are the boomerang-shaped bony or cartilaginous structures that support the gills. Each gill arch comprises an upper and a lower limb that are joined posteriorly. Attached to the gill arches are the gill filaments and gill rakers.

What is a raking shore?

Raking shores is a system of giving temporary support to an unsafe wall. The construction of raking shores, also known as inclined shore, varies with the conditions of site. The wall-plate is further secured to the wall by means of needles.

What is shoring in building construction?

Shoring is the process of temporarily supporting a building, vessel, structure, or trench with shores (props) when in danger of collapse or during repairs or alterations. Shoring comes from shore, a timber or metal prop. Shoring may be vertical, angled, or horizontal.

What is a tieback easement?

Tieback easements are subterranean easements allowing the grantee to install shoring devices known as tiebacks deep underground on the grantor's property.

What is a subsea tieback?

The subsea tieback is an engineering process connecting an untapped satellite oil field to an existing production center. This process used to be a technological and financial burden, but today it's one that increasingly makes sense due to advances in engineering and improvements in operations.

What are curtain ties called?

A curtain tie-back is a decorative window treatment which accompanies a cloth curtain.

What is a soldier pile?

A soldier pile is a common retaining wall strategy in which H-shaped steel beams (“piles”) are drilled deep into the earth at regular intervals — usually 2 to 4 yards apart. Known as “lagging walls,” these horizontal supports are most often made from precast concrete panels, steel girders or pressure-treated timber.

When should Shoring be used?

Shoring or shielding is used when the location or depth of the cut makes sloping back to the maximum allowable slope impractical. Shoring systems consist of posts, wales, struts, and sheeting. There are two basic types of shoring, timber and aluminum hydraulic.

Why do we need shoring?

Why Shoring Matters So Much

Its many benefits include: Enhanced safety — The construction of basements and foundations requires excavation. Protecting the workers in those temporary trenches and holes calls for shoring. By holding the earthen walls up and preventing collapses, it ensures a safer work site.

What is Reshore?

Reshoring is the process of utilizing multiple levels of shores below the story being cast to distribute the applied construction loads to multiple stories. Concrete is heavy and without a sufficient number of levels to support the weight the slabs can become overloaded.

What is shielding in excavation?

Excavation Shoring Methods & Shielding Types. Shoring is the provision of a support system for trench faces used to prevent movement of soil, underground utilities, roadways, and foundations. Shoring or shielding is used when the location or depth of the cut makes sloping back to the maximum allowable slope impractical