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Foundation

level Common examples include pad strip or raft foundations The selection of the right type of shallow foundation normally depend on the magnitude and disposition of the structural loads and the bearing capacity of subsoil A combination of two or three type of shallow foundation in one single structure is Get price

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EXCAVATION and BASEMENT CONSTRUCTION Introduction

Excavation for the diaphragm wall – In normal soil conditions excavation is done using a clamshell or grab suspended by cables to a crane The grab can easilyfchisel boulder in soil due to its weight Excavation support – excavation for the diaphragm wall produces a Get price

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Foundation (engineering)

In engineering a foundation is the element of a structure which connects it to the ground and transfers loads from the structure to the ground Foundations are generally considered either shallow or deep Foundation engineering is the application of soil mechanics and rock mechanics (Geotechnical engineering) in the design of foundation elements of structures Get price

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Bronx Excavation Co

rock rock excavation rock breaking elevator shafts basement excavation basements underpinning retaining walls ground anchors interior demolition concrete vaults concrete slab removal concrete foundation drilling rock splitter or rock splitting hydraulic rock splitter or hydraulic rock splitting non-explosive rock breaking vibration-free excavation Brokk (this is the brand name of the equipment Get price

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Equipment and Services for Mining and Rock Excavation

equipment and services for mining and rock excavation Our product offering provides solutions for virtually any mining or rock excavation project Our range of equipment and services for mining and rock excavation are designed to maximize your productivity and profitability Get price

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FOUNDATION PREPARATION TREATMENT AND CLEANUP

Prohibit or strictly control blasting for the excavation of these structures to avoid damaging the foundation If the material cannot be excavated with a hydraulic excavator fitted with a rock bucket a grout cap or cutoff wall is probably not needed and grout nipples can be set directly in the foundation Get price

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Types of excavation

Trench or footing excavation is typically used to form strip foundations buried services and so on The choice of technique and plant for excavating supporting and backfilling the trench depends on factors such as the purpose of the trench the ground conditions the Get price

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13 Common Types of Excavation (By Type Material)

Rock excavation is based on the removal of materials generally due to rocky surfaces that impede construction or engineering projects This type of excavation is often considered more challenging than other types and may require specialized equipment to break up Get price

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Strip foundation

May 31 2019The underside of strip foundations should be deep enough to avoid frost action for example at least 450 mm unless they are bearing on rock and at least 1 m on high shrinkage clays Deep strip foundations may be necessary where soil with a suitable bearing capacity is deeper Get price

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Deep excavation construction methods

Deep excavation and geotechnical construction methods Construction method selection for deep excavations depends on many factors Local experience plays always an important role as local knowledge typically dictates the limitations of what can be built sucessfully in the field Get price

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Strip Foundation Construction and Design

This project will deal only with the strip foundation the most common and widely used Indication will be given here where strip foundations may not be suitable A strip foundation is quite simply a strip of concrete placed in a trench The absolute minimum thickness of this strip is 150mm Get price

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Foundation (engineering)

In engineering a foundation is the element of a structure which connects it to the ground and transfers loads from the structure to the ground Foundations are generally considered either shallow or deep Foundation engineering is the application of soil mechanics and rock mechanics (Geotechnical engineering) in the design of foundation elements of structures Get price

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Diaphragm wall Excavation

Find here your next diaphragm wall excavation equipment Here you can find a selection of diaphragm wall excavation for sale that can satisfy your needs Check our inventory of our diaphram wall machines for sale here below Didn't find what you're looking for? Contact us through the or Request on Find my Equipment pageGet price

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Foundation Excavation Estimates

A piece of equipment called an excavator can be used to burrow deep into the ground Excavator contractors can dig holes for foundations basements and even holes for ponds lakes and pools After the foundation has its final form it is supported with some backfill soil that is provided by the excavators Get price

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Strip Foundation

Strip Foundation The 150mm concrete subfloor is poured on the hardcore in order to provide a strong smooth platform for the insulation A radon barrier is installed to form a continuous seal on the entire footprint of the house A Damp Proof Course is installed in order to repel any rising moisture Get price

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Typical Contract Language in Specifications of a Public

ROCK EXCAVATION For general excavation a D-9N tractor with a single shank ripper or equivalent equipment is considered conventional equipment if it can rip at a production rate of at least 300 bank cubic yards per hour 2 For trench excavation a 235C excavator with a medium stick and a rock ripping bucket Get price

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Specifications of excavation and foundation

Aug 25 2016SPECIFICATIONS OF EXCAVATION AND FOUNDATION 12 EXCAVATION • EXCAVATION is the preliminary activity of the construction project It starts from the pits for the building foundations and continues up to the handing over of the project • For small buildings excavation is carried out manually by means of pick axes crow bars spades etc Get price

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How Much Does Rock Excavation Cost?

Aug 09 2018How much does rock excavation cost? Depending on the type of rock the size of the job placement contractor rates the equipment being used and geographical location most rock excavation jobs will cost $5 to $35 per cubic yard if a blasting method is used but this price could be much higher if it were a public bid job Get price

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Rate Analysis of Excavation in Earthwork

Rate analysis of excavation in earthwork is the measure of quantity of excavation to be carried out the cost of equipment machineries and labors required for the same The cost of excavation depends on the depth of excavation type of soil method of excavation to be carried out and the distance where the excavated soil has to be disposed Get price

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Excavation Material Removal Calculator

If you are excavating an area with a volume of 200 cubic yards consisting of material with a 40% swell you are actually looking at removing 280 cubic yards At an average of 12 cubic yards hauling capacity of a truck you are looking at an additional 6 to 7 truck loads Get price

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Excavating plant

Jan 11 2019It is best suited to bulk excavation in loose or waterlogged soils below its own track level Trenching machine Also known as a skimmer a trenching machine is used for excavating long trenches such as those necessary for pipelines They will normally dig trenches 0 25-1 5 m wide and up to depths of 3 m where a high degree of accuracy is required Get price

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Foundation Systems and Soil Types

Types of Foundation Systems What are Strip Foundations? The standard routine is to place as little solid concrete as possible into trenches and then to build up from this in blockwork until ground level where the walls switch to brick or stone or whatever the chosen external cladding should be This is known as a strip foundation Get price

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Excavation Rock

It may loosen and bring down quite good rock if the rock mass has joints and/or fissures that can be prised open by the bucket teeth Drilling and blasting is required in sound rock excavation prior to the use of a face shovel type machine to excavate the broken rock and load to transport 8 4 4 GrabGet price

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SHALLOW INTRODUCTION FOUNDATIONS

For a strip footing qult = γBN γ +cN c +γD f N q 2 1 For a circular footing with diameter D Note For a rectangular footing (L*B) use linear interpolation between strip footing (B/L=0) and square footing (B/L=1 0) *For the same soil conditions for different foundation shapes qult values are different qult =0 3γDN γ +1 3cN c +γD f N q qrect qstripGet price

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Excavation Construction

Excavation is the process of moving earth rock or other materials with tools equipment or explosives It includes earthwork trenching wall shafts tunneling and underground Excavation has a number of important applications including exploration environmental restoration mining and construction Get price

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Types of Foundation

Wall foundation runs along the direction of the wall The width of the wall foundation is generally 2-3 times of the width of the wall Figure Wall Footing or Strip footing The wall footing is a continuous slab strip along the length of the wall Stone brick reinforced concrete Get price

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Foundation Construction

Jun 04 2011Foundation Construction - Strip foundations Saturday December 4 2010 Tweet Strip foundations consist of a continuous strip usually of concrete formed centrally under load bearing walls This continuous strip serves as a level base on which the wall is built and is of such a width as is necessary to spread the load on the foundations Get price

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10+ CONSTRUCTION EQUIPMENTS COMMONLY USED FOR

May 07 2014Back-acters operate by digging towards the machine in an arc from a small distance above the surface on which the machine stands to a position vertically below the outer edge of the machine The maximum depth of excavation is related to the length of the boom and machines with depth capacities between 2 6 and 6 m are in common use Get price

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EXCAVATION and BASEMENT CONSTRUCTION Introduction

Excavation for the diaphragm wall – In normal soil conditions excavation is done using a clamshell or grab suspended by cables to a crane The grab can easilyfchisel boulder in soil due to its weight Excavation support – excavation for the diaphragm wall produces a vertical strip in Get price

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Marking out a strip foundation for house self build

The general rule of thumb when digging a strip foundation is that the foundation is 3 times the size of the walls width this means our strip foundations are going to be 900mm wide by 300mm deep (NOTE THIS WAS SPECIFIED BY OUR ENGINEER) Marking out Strip FoundationGet price

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Different types of Footings in construction Where When

Jun 04 2017III Strip foundation Strip foundation is also called as Wall footing As name itself showcasing that it is a strip type footing which follows the path of Superstructure Wall This type of footing is constructed for Load bearing walls It is a continuous strip of concrete that serves to spread the weight of a load-bearing wall across an area Get price

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Excavation in rock without explosives?

Dear friends Can somebody help to me calculate the production rate per hour and unit rate estimate of excavation in rock (Dolomite) which is to be carried out without explosives It would be undertaken with Excavator 50T + Hydraulic Jack Hammer 3 2T and Hydraulic and Rotary Drum Cutter for excavator 50T Thank you and BR Khan Get price

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Partial

Partial-face Excavation Machines in operation Partial-face Excavation Machines made by Herrenknecht are an economically interesting solution in homogeneous and almost stable grounds with little or no groundwater This tunnelling technology can be easily adapted to changing geological conditions both in loose soils and in hard rock due to its Get price

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