machines for strip foundation excavation in rock

Foundation (engineering) - Wikipedia

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.

FOUNDATION DESIGN AND CONSTRUCTION - cedd.gov.hk

practice related to design and construction of foundation, with specific reference to ground ... 4.4.2 Machine-dug Piles 59 4.4.2.1 Mini-piles 60 4.4.2.2 Socketed H-piles60 ... 7.3.4 . Vertical Pile Groups in Rock under Compression 171.

Trenching and Excavation Safety

Dangers of Trenching and Excavation Cave-ins pose the greatest risk and are much more likely than other excavationrelated accidents to result in worker fatalities. Other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment.

© The Government of the Hong Kong Special Administrative ...

of new technologies in analysis, design and construction of foundations. Although this Code of Practice is not a statutory document, the compliance with the requirements of this Code of Practice is deemed to satisfy the relevant provisions of the

14.528 Lecture 3 - Drilled Shaft Design and Construction

Revised 9/2012 14.528 DRILLED DEEP FOUNDATIONS Drilled Shafts Design and Construction Slide 1 of 51 DRILLED SHAFT CONSTRUCTION West Tower – Arthur Ravenel Jr.

EXCAVATION and BASEMENT CONSTRUCTION Introduction ...

Size of excavation – affect type of machine used and method to excavate. 3. Scale of work – large volume of excavation may involve complicated phasing ... Excavation support – excavation for the diaphragm wall produces a vertical strip in soil ... exclude soil or water from a construction area, such as for foundation or basement works.

CHAPTER 18 SOILS AND FOUNDATIONS - iccsafe.org

areas where rock is exposed, provided the following requirements are met: 1. The presence of defects or the inclination of bedding planes in the rock are of such size and location so as not to affect stability of the foundation. 2. The foundation is not designed for bearing pressures exceeding those permitted in Table 1804.2.

Types of Soil Excavation Tools and Machines in Construction

There are different types of soil excavation tools and machines used in construction. Excavation of soil is necessary in construction point of view and it should be done by hand tools or machineries based on the area of the land or depth of excavation.

Excavation Hazards | Ministry of Labour

Wall stability: Strip the wall of a trench or excavation of any loose rock or other material that may slide, roll or fall on a worker. [Construction Reg. s. 232] Equipment: Keep heavy equipment, excavated soil or rock and construction material at least one metre away from the upper edges of the trench or excavation.

Excavation in Construction from Construction Knowledge.net

A knowledge of the approximate location of the rock helps the Construction Supervisor to plan the sequence of steps following rock excavation. If rock is in one corner of a large building project, for example, the earth excavation could begin at the opposite end of the building in order to start foundation work soonest.

Chapter 7 Foundation Preparation, Removal of Water, and ...

Chapter 7 Foundation Preparation, Removal of Water, and Excavation 645.0700 Introduction Earthwork operations on a project consist of working with the native soil or rock and existing terrain. The success and stability of most projects rely heavily on a properly designed and properly prepared foundation.

Excavation Estimating Unit Costs Directory-- for ...

Use this category when estimating excavation, trenching, grading and other site preparation and earthwork that is done with heavy equipment. These costs are designed primarily for residential and light commercial earthwork estimating, excavation estimating and trenching estimates.

2018 Excavation Costs | Price to Grade or Level a Yard ...

Excavation is the first step in the construction process included in your overall home construction costs. Excavators prepare sites for a variety of purposes including installing home foundations, waterproofing basements, installing in-ground pools, pouring concrete patios, grading for driveways and even for simple erosion control and drainage.

Home - Deep Excavation

Deep Excavation is a leading engineering and technology company, providing with it's partners geotechnical, foundation and construction services since 1987. Deep Excavation has developed leading software programs for geotechnical engineers and deep excavation designers.

BEST Strip foundation: important features will save your home

Strip foundation is a continuous concrete strip on which load bearing walls are built centrally. This represents a level base for the walls and its dimensions must be sufficient to allocate the load imparted to the foundation to subsoil area capable of supporting the building weight without excessive compaction.

Foundation - City University of Hong Kong

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 …

Excavating to foundations - House Self Build

Excavating Topsoil on Site. We organised for a 14 ton digger and 6 ton dumper to be at the site for 8am Monday morning. The first job the digger had to do was to open an entrance into the site the most important thing here was to keep the road clean from dirt/stones off the ditch and make sure no cars were damaged while this has been done.

Construction Safety Trenching and Excavation Safety ...

excavation operations, support systems (e.g., shoring, bracing, or underpinning) will be provided to ensure the stability of such structures for the protection of employees, except when the excavation is in stable rock or a registered professional engineer has determined that such excavation work will not pose a threat to employees.

SOILS AND FOUNDATIONS - Public.Resource.Org

EXCAVATION: The space created by the removal of soil or rock for the purpose of construction. FACTOR OF SAFETY : The ratio of the ultimate capacity to the design (working) capacity of the foundation …

The Excavation and the Foundation - Bob Vila

THE EXCAVATION Now the noise can begin. Diesel-powered earth-moving machines arrive a day or so later. Often a back hoe will be enough, though for big jobs there may be a bulldozer (call it a ...

'Strip Foundation' - Excavation & Reinforcement - YouTube

Mar 23, 2017· This video looks at the process of excavating and reinforcing a strip foundation for a home to Irish building regulations. These resources have been created to assist pupils of Construction ...

Construction Technology series Foundation | Deep ...

Pad Foundation Strip Foundation Raft Foundation Raft foundation is a large combined thick slab designed to seat and support the whole or a large part of a structure. A raft is usually used when subsoil is weak, or columns are closely located and with deviated loadings.

3 Groundwork and Foundations - Wiley-Blackwell

rock or firm ground; it was not until the beginning of the twentieth century that concrete was increasingly used as a foundation base for walls. With the introduction of local and then national building regulations, standard forms of concrete foundations have become accepted practice in the UK, along with

Types of Foundation and Methods of Construction of ...

The foundation consisting of a thick R.C.C slab covering the whole area of a mat is known as raft foundation. Method of construction of Raft Foundation: In Raft Foundation construction the whole area is dug out to the specified depth and 30 cm more wide than the area to be covered. The bed is compacted and sprinkled over with water.

Specification for Structure Foundation Construction

associated with foundation excavation shall be allowed for in the rates for supply and installation of each type of foundation except as specified hereunder for rock excav ation. 11.

Strip Foundation Construction and Design | Building ...

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.

Excavation For Foundation Procedure, Setting Out, Safety ...

Excavation Procedure for Foundation. For small buildings, excavation is carried out manually by means of pick axes, crow bars. spades etc. In case of large buildings and deep excavation, mechanical earth cutting equipment can be used.

Types of Foundations in Building Construction - Understand ...

Pile foundations are used in the following situations: When there is a layer of weak soil at the surface. This layer cannot support the weight of the building, so the loads of the building have to bypass this layer and be transferred to the layer of stronger soil or rock that is below the weak layer.