Rock Mass Classification and also a brief description of Rock Mass Rating (RMR), Rock Structure Rating (RSR), Q valves and New Austrian Tunneling method(NATM)
It,s all about Index properties of Rocks.
It can help those students who want to give presentation about this topic.
Also it can give you information about Pocks and very helpful in Geo mechanics.
Rock Mass Classification and also a brief description of Rock Mass Rating (RMR), Rock Structure Rating (RSR), Q valves and New Austrian Tunneling method(NATM)
It,s all about Index properties of Rocks.
It can help those students who want to give presentation about this topic.
Also it can give you information about Pocks and very helpful in Geo mechanics.
Tunnelling is a serious engineering project.
In addition to large investment cost, the challenges related to long and deep tunnels are considerable.
Important aspects which needs to be considered are related to the construction works, geology, environment and operation. his module highlights all these aspects.
This contains methods of exploration in rock. How the rock samplers are taken. Quality of rock samples and its reporting. Along with the laboratory tests conducting on these rock samples.
Types of dams, geological considerations in site selection, Competency of Rocks to offer stable dam foundation, effect of geological structures on dam, selection of dam site, Reservoir, purpose of reservoir, influence of water table, geological structures, life of reservoir, geophysical studies
Tunnelling is a serious engineering project.
In addition to large investment cost, the challenges related to long and deep tunnels are considerable.
Important aspects which needs to be considered are related to the construction works, geology, environment and operation. his module highlights all these aspects.
This contains methods of exploration in rock. How the rock samplers are taken. Quality of rock samples and its reporting. Along with the laboratory tests conducting on these rock samples.
Types of dams, geological considerations in site selection, Competency of Rocks to offer stable dam foundation, effect of geological structures on dam, selection of dam site, Reservoir, purpose of reservoir, influence of water table, geological structures, life of reservoir, geophysical studies
THE various rocks are classified as according to rock mass classification system as it is used for used for various engineering design and stability analysis of underground structures.
this is a ppt especially for class 9 students.this contains details about drainage system in india and also about-ganga,indus,brahmaputra river systems
All the important and main rivers of India are mentioned in this PowerPoint Presentation. All the information stored in this PowerPoint Presentation is accurate.
Ecosystem Services for Biodiversity Conservation: Study of Corbett India Water Portal
Traditionally, the only market economic values Protected Areas recognised are tourism revenues and income from extractive activities.The difficulty in quantifying many of the economic, social, environmental and cultural values of protected areas lead to their undervaluation in land and resource use decisions
It is often perceived to be more profitable to convert a natural ecosystem than to leave it intact. A study of Corbett National Park shows indirect benefits like carbon storage and direct benefits like tourism.
PPT on India's Drainage System (River System) Rohan Karmakar
The following presentation is on India's drainage or river system. It includes information about some of the major river systems in India. All comments are welcomed. Please LIKE this presentation.
rock excavation, underground, different excavation machines, applicability, limitations, theories of rock interaction, cutting tools, pick lacing pattern, various picks, types of excavation machines,
Geoengineering Characterization of the Rock Masses of Northern Face of Jabal ...IJERA Editor
This paper is aimed at the description and the geotechnical characterization of the Tertiary granitic rock masses of the northern face of Sabir Mountain, Taiz city, Yemen, for the first time. For accomplishing this task, direct and indirect approaches are adopted. The direct approach is represented by field and laboratory investigations. Field investigations include discontinuity (joints) measurements/evaluation, applied Rock Mass Rating (RMR) system and Geological Strength Index (GSI) system, in addition to field tests, while laboratory investigations encompass physico-mechanical tests carried out on granitic rock materials. Indirect approach for the estimation of shear strength parameters (c, φ), compressive strength (σcm), tensile strength (σtm) and deformation modulus (Erm) of these rock masses was made by applying the generalized Hoek–Brown failure criterion using geotechnical Roc-Lab software. The laboratory results indicate that the Tertiary granitic rock masses show wide range of variations in their physico-mechanical characteristics owing to degree of weathering /alteration and microfractures. The intact samples of Sabir granitic (Tg) rocks show “Moderate” to “High” density, “Low” to "Medium" porosity, “Good" to "Marginal” water absorption capacity and “Weak” to “Very Strong” strength. Stereographically, three main sets of discontinuities (joints) are identified at each station; however, the fourth joint set occurs, in addition to random joint sets. The discontinuities (joints) trend predominately in NE-SW and NW-SE directions in conformity with the regional structures or faults. According to Jv j/m³ values, the degree of jointing of these rock masses are varied from “Moderate” to “High” jointing. These rocks are categorized as “Fair” to “Excellent” quality, “Fair” to “Good/Very Good” quality and “Poor” to “Very Good” quality classes according to RQD, RMR89 and GSI respectively. Values of the shear strength parameters (c and φ) and the other rock mass parameters (σtm, σc , σcm and Erm) show variations depending on the rock mass quality and properties of intact rock. However, in general the values of the rock mass parameters are found to increase with increase in the quality of rock mass and intact rock properties.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
1. Rock Quality Designation Index (RQD)Rock Quality Designation Index (RQD)
(Deere et al. 1967)(Deere et al. 1967)
• Aim : to provide a quantitative estimate of rock mass
quality from drill logs
• Equal to the percentage of intact core pieces longer than
100mm in the total length of core
The rock quality designation (RQD) is a commonly used
index for the description of rock mass fractured state
2. RQDRQD
• Directionally dependant parameter
• Intended to indicate rock mass quality in-situ
• Adapted for surface exposures as number of
discontinuities per unit volume
5. RQD classification index
RQD Rock mass quality
<25% - very poor
25-50 % - Poor
50-75% - Fair
75-90% - Good
90-100% - Excellent
Limitations of the RQD
• RQD gives no information of the core pieces < 10cm
excluded, i.e. it does not matter whether the
discarded pieces are earth-like materials or fresh rock pieces
up to 10cm length
• Gives wrong values where joints contain thin clay fillings or
weathered material
• Does not take direct account of joint orientation
6. Rock Structure Rating (RSR)
It is a quantitative method for describing quality of a rock
mass and appropriate ground support, in particular, for
steel-rib support, developed by Wickham, Tiedemann and
Skinner.
The RSR concept introduced a rating system for rock
masses. It was the sum of weighted values in this
classification system.
There are considered two general categories:
geotechnical parameters:
rock type; joint pattern; joint orientations; type of
discontinuities; major faults; shears and folds; rock
material properties; weathering or alteration. and
construction parameters:
size of tunnel; direction of drive; method of excavation.
7. The RSR value of any tunnel section is obtained by summing the
weighted numerical values determined for each parameter.
The RSR concept is a very useful method for selecting steel rib
support for rock tunnels.
The nature and distribution of structural features within a rock
mass which may have a dominant effect on the response of the
rock.