Method For Excavation Hard Material

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Method of Measurement for Road Works Series MM 600

Method of Measurement for Road Works Earthworks March 2013 5 Excavation of 17 The items for excavation of acceptable material Class 5A shall in Acceptable Material accordance with the Preambles to Bill of Quantities General Directions Class 5A include for Item Coverage (a) loading into transport (b) multiple handling of material

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EXCAVATION AND BACKFILL FOR BRIDGEWORKS

Backfill material now termed "Select Fill material" consistent with terminology used in R44 GM IC excavation and backfill volumes for payment added iv Ed/Rev Number Clause Number The method of measurement and payment is detailed in Annexure B30/B

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Trench and Excavation Support Options And

Trench and Excavation Support Options And Excavation Slope Design Eugene Washington P E Course Outline 1 should be analyzed for a comprehensive economic solution where the viable alternates are reviewed for trench method of excavation pipe laying Additional equipment and material at the site congest the work site

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Applicability of excavatability classification systems in

determination of excavation method suitable for this will reduce the excavation coast and the problems confronted to the least Therefore many researchers developed a number of preliminary empirical excavatability and rippability classification systems to determine excavatability by taking material and mass features of

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JKR Standard EXCAVATION AND EARTHWORKS

JKR Standard EXCAVATION AND EARTHWORKS based on his proposed method of excavation for u Actually i'm a project in-charge of one of the road project in sarawak who quite interested with your explanation on Hard Material / Rock Excavation which your good self had defined it in 6 2 1 Hard material/ rock excavation shall mean excavation

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Tunnel Portal Construction using Sequential Excavation

In this study portal excavation design has been analyzed using the finite element based computer program known as Phase2 The method of top heading and benching was not a suitable approach keeping in view the previous experience Subsequently a different design of sequential excavation method (SEM) was proposed

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Different Excavation Techniques Used For Construction

9-2-2012Construction is a very complex activity and requires lot of work to be done When you are getting started with a construction work the very first thing that needs to be done on the area is excavation What is excavation? Excavation is often used in digging holes for archaeological purposes – meaning studying the soil

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Method Statement for Excavation Compaction and

method statement for excavation | method statement for excavation and backfilling GENERAL An open cut type of excavation shall be applied with safe side slopes Shoring and bracing system shall be used whenever required to protect adjacent structure if any in an excavation site or when the excavation side slope is steeper than those mention

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Appendix D Construction Method Statement

This method statement relates to the construction of foundations and superstructures for not expected that the excavation will involve rock from Wilson Street Plant required to access the site includes excavators small earth moving equipment to prepare the hard stand areas spoil trucks concrete mixers and concrete pumps small

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PROBABILISTIC APPROACHES APPLIED TO EXCAVATION TOOL

Figure 1 However material properties of the ore have a large stochastic variability Hence the stochastic approach (i e Simulation-Based Reliability Assessment Method) in combination with FEM is applied Figure 1 Typical Example of Mechanical Interaction between Bits and Hard Rock (Ore Disintegration Process) 2

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The unit of measurement for excavation and borrow will be the cubic meter yard computed by the average end area method from cross sections taken before and after the excavation and borrow operations including the excavation for ditches gutters and channel changes when the material is acceptably utilized or disposed of as herein specified

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Safe work method statement

Barricading of excavation works safe work method statement is a 13 page document compliant with statute OHS reporting requirements It identifies known hazards and risks and outlines the control measures to be implemented to eliminate or minimise the risk of death injury or illness generated from the erection of a self-supporting barricade

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Top Down Construction Method in Construction [WITH PICS]

Usually the top down construction method is used in urban infrastructure projects like of underground car parking underpasses or even subway stations and alongside sky-scrapers with deep basement levels Anyhow I have collected a list of some very interesting project involving top down construction excavation -

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Time

Time-lapse monitoring of hard-rocks properties in the vicinity of underground excavation Jaroslav Brta 1 Dušan Dostl 1 Jaroslav Jirk ů2 Vclav Kopeck 3 Lubomr Slavk 3 and Jan Vilhelm 2 Studying the behavior of the rock mass is essential for developing a geophysical monitoring system which

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Excavation Construction

What is Excavation? 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

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Earthworks

Hard - material requiring blasting and hard high PI clays Typical diggability factors can be seen in Table 1 below Another important feature of rock is the amount of fissuring There are two methods of assessing this the percentage Rock Quality Data method and the Spacing of joints method

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EXCAVATION BEDDING AND BACKFILL TABLE OF

4 3 Excavation of Unsuitable Material 2 Type 2 and Type 3 material is to consist of s ound hard crushed rock or crushed gravel free from 5 Use type or method of shoring that will not disturb the compacted foundation and bedding when being removed

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Pre

Sometimes such pre-excavation grouting can be executed from the ground surface primarily for shallow tunnels with free access to the ground surface area above the tunnel Post-excavation grouting or post-grouting is where the drilling for grout holes and pumping in of the grout material

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Tunnel construction

Tunnels are dug in types of materials varying from soft clay to hard rock The method of tunnel construction depends on such factors as the ground conditions the ground water conditions the length and diameter of the tunnel drive the depth of the tunnel the logistics of supporting the tunnel excavation the final use and shape of the tunnel

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EXCAVATION CHECKLIST

K Excavation of material to a level no greater than two feet below the bottom of the support system and only if the system is designed to support the loads calculated for the full depth L Shield system placed to prevent lateral movement M Employees are prohibited from remaining in

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Excavation (archaeology)

In archaeology excavation is the exposure processing and recording of archaeological remains An excavation site or dig is a site being studied Such a site excavation concerns itself with a specific archaeological site or a connected series of sites and may be conducted over as little as several weeks to over a number of years

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Excavation of Hard Granite Using Cardox CO System

Products / Projects Cardox CO Non-Detonating Expansion Systems Cardox CO Systems vs Explosives Comparison Pneumatic Hydraulic Whips for Bins Silo Clearing Excavation of Hard Granite Using Cardox CO System Clearing of Build-Ups in Rotary Kiln Using Cardox CO Systems Concrete Demolition with the use of the Cardox CO System

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Rock Excavation and Its Various Methods

Rock Excavation and Its Various Methods When it comes to rock excavating blasting ripping and breaking have been popular methods to excavate rock and has been a part of construction engineering for X number of years In any blasting situation the geologic structure of the rock mass will be the most important consideration

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Model Code of Practice Excavation work

CODE OF PRACTICE EXCAVATION WORK 1 TABLE OF CONTENTS FOREWORD 2 3 3 Safe Work Method Statements 10 3 4 Adjacent buildings or structures 11 EXCAVATION WORK 14 4 1 Excavated material and loads near excavations 14 4 2 Plant and equipment 17 4 3 Powered mobile plant 18 4 4 Falls 21 4 5 Using Explosives 22 4 6 Atmospheric conditions and

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The Numerical Simulation of Hard Rocks for Tunnelling

1-12-2017Tunnelling processes lead to stress changes surrounding an underground opening resulting in the disturbance and potential damage of the surrounding ground Especially when it comes to hard rocks at great depths the rockmass is more likely to respond in a brittle manner during the excavation Continuum numerical modelling and

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Method for removing hard rock and concrete by the

14-11-2000The present invention relates generally to a method for excavating hard rock and concrete and specifically to a method for excavation of hard rock and concrete using small charge blasting and impact hammers BACKGROUND OF THE INVENTION The excavation of rock is a primary activity in the mining quarrying and civil construction industries

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02220

material is available from the excavation Material unsuitable for use in backfill shall be re mo ved pro mp tl y an d di sp ose d of by the Contr act or Any pocke ts of or gan ic ma tt er concr ete or other unsuitable material encountered in excavating shall be removed and replaced with material satisfactory to the Department H

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What are the Best Methods for Trench Excavation?

13-10-2019The type of material that is to be dug up can also affect the trench excavation method For example sandy loose and muddy soils are generally more difficult to dig Constructing these types of trenches may require special safety measures since these soils can be more susceptible to cave-ins because of their lack of solidity

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UNDERGROUND EXCAVATION Alternative excavation

the success of the chosen method included n Machine capable of excavation and supporting to eliminate place changing at the face n A continuous material handling system n Method of extending the ventilation with minimal disruption to the works n Pavement installation method that would work concurrent to the face advance

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Assessment of excavation method of Obajana and Ewekoro

assessments revealed that "Very Hard Ripping" is a possible method of excavating Obajana and Ewekoro Type III deposits while the less dense Type I deposit of Ewekoro can be "Ripped" The only feasible excavation method for Ewekoro type II deposit is "Blasting"

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Tunnels and Tunneling

Tunnels and Tunneling tunnel feet shafts material built method excavation driven section and methods Fig 3 illustrates the order of excavation in the German method)) of tunneling If the first part numbered 1 in the figures is in the top of the tunnel it is called a heading

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SECTION 6 EXCAVATION TRENCHING BACKFILLING AND

Excavation shall include the removal of all materials not classified as unclassified excavation including clay silt sand gravel hard pan loose shale and other louse stones in masses and boulders measuring less than one-half cubic yard in volume B Unclassified Excavation – Excavation shall comprise of the satisfactory removal

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STRESS AND STRAIN ANALYSIS DURING THE SLEME TUNNEL EXCAVATION

requires excavation in geologically unfavourable conditions Due to large radii and relatively small road and railroad slope routes where the ground configuration is hard to be followed tunnels sometimes need typical crossto be excavated even in weak rocks Tunnels are civil engineering structures surrounded by material of poorly

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