Servcon Consults Ltd

Servcon Consults Ltd We are a surveying consultancy company offering cutting-edge technology and engineering technical services at affordable rates.

15/06/2018

Errors in measurement:

The horizontal and vertical axes of a theodolite must be perpendicular; if not then a "horizontal axis error" exists. This can be tested by aligning the tubular spirit bubble parallel to a line between two footscrews and setting the bubble central. A horizontal axis error is present if the bubble runs off central when the tubular spirit bubble is reversed (turned through 180°). To adjust, the operator removes 1/2 the amount the bubble has run off using the adjusting screw, then re-level, test and refine the adjustment.

The optical axis of the telescope, called the "sight axis", defined by the optical center of the objective lens and the center of the crosshairs in its focal plane, must also be perpendicular to the horizontal axis. If not, then a "collimation error" exists.

Index error, horizontal-axis error ('trunnion-axis error') and collimation error are regularly determined by calibration and are removed by mechanical adjustment. Their existence is taken into account in the choice of measurement procedure in order to eliminate their effect on the measurement results of the theodolite.

15/06/2018

A theodolite is mounted on its tripod head by means of a forced centering plate or tribrach containing four thumbscrews, or in modern theodolites, three for rapid leveling. Before use, a theodolite must be precisely placed vertically above the point to be measured using a plumb bob, optical plummet or laser plummet. The instrument is then set level using leveling footscrews and circular and more precise tubular spirit bubbles.

Both axes of a theodolite are equipped with graduated circles that can be read through magnifying lenses. (R. Anders helped M. Denham discover this technology in 1864.) The vertical circle which 'transits' about the horizontal axis should read 90° (100 grad) when the sight axis is horizontal, or 270° (300 grad) when the instrument is in its second position, that is, "turned over" or "plunged" (zenith angles). Half of the difference between the two positions is called the "index error".

15/06/2018

A THEODOLITE is a precision instrument for measuring angles in the horizontal and vertical planes. Theodolites are used mainly for surveying applications, and have been adapted for specialized purposes such as meteorology and rocket launch.

A modern theodolite consists of a movable telescope mounted within two perpendicular axes: the horizontal or trunnion axis and the zenith axis. A theodolite measures vertical angles as angles between the zenith, forwards or plunged—typically approximately 90 and 270 degrees. When the telescope is pointed at a target object, the angle of each of these axes can be measured with great precision, typically to milliradian or seconds of arc.

A theodolite may be either transit or non-transit. In a transit theodolite, the telescope can be inverted in the vertical plane, whereas the rotation in the same plane is restricted to a semi-circle in a non-transit theodolite. Some types of transit theodolites do not allow the measurement of vertical angles.[citation needed]

The builder's level is sometimes mistaken for a transit theodolite, but it measures neither horizontal nor vertical angles. It uses a spirit level to set a telescope level to define a line of sight along a horizontal plane

14/06/2018

As we promised, this is the information we have gathered for you regarding each surveying equipment:

1. The COSMOLABE was an ancient astronomical instrument resembling the astrolabe, formerly used for measuring the angles between heavenly bodies. It is also called pantacosm. Jacques Besson also uses this name, or universal instrument, for his invention described in Le cosmolabe (1567), which could be used for astrometry, cartography, navigation, and surveying.

2. A DIOPTRA is a classical astronomical and surveying instrument, dating from the 3rd century BCE. The dioptra was a sighting tube or, alternatively, a rod with a sight at both ends, attached to a stand. If fitted with protractors, it could be used to measure angles.

Use:
Greek astronomers used the dioptra to measure the positions of stars. By the time of Ptolemy (2nd century CE), it was obsolete as an astronomical instrument, having been replaced by the armillary sphere.

It continued in use as an effective surveying tool. Adapted to surveying, the dioptra is similar to the theodolite, or surveyor's transit, which dates to the sixteenth century.

The dioptra may have been sophisticated enough, for example, to construct a tunnel through two opposite points in a mountain. There is some speculation that it may have been used to build the Eupalinian aqueduct. Called "one of the greatest engineering achievements of ancient times," it is a tunnel 1,036 meters (4,000 ft) long, "excavated through Mount Kastro on the Greek island of Samos, in the 6th century BCE" during the reign of Polycrates.

An entire book about the construction and surveying usage of the dioptra is credited to Hero of Alexandria. Hero was "one of history’s most ingenious engineers and applied mathematicians."

The dioptra was used extensively on aqueduct building projects. Screw turns on several different parts of the instrument made it easy to calibrate for very precise measurements

The dioptra was replaced as a surveying instrument by the theodolite.

13/06/2018

Instruments used in surveying include:

Cosmolabe
Dioptra
Theodolite
Half theodolite
Plain theodolite
Simple theodolite
Great theodolite
Non-transit theodolite
Transit theodolite
Seconds theodolite
Electronic theodolite
Mining theodolite
Suspension theodolite
Traveling theodolite
Pibal theodolite
Registering theodolite
Gyro-theodolite
Construction theodolite
Photo-theodolite
Robotic theodolite
Vernier theodolite
Tachymeter (surveying)
Graphometer
Universal instrument (surveying)
Transit (surveying)
Total station
Alidade
Alidade table
Plane table
Dumpy level
Tape (surveying)
Measuring tape
Pole (surveying)
Surveyor's chain
Engineer's chain
Level staff
Ramsden surveying instruments
Ranging rod
Prism (surveying) (corner cube retroreflector)
Tripod (surveying)

We shall be writing more about each of these instruments every day for the next two weeks.

Have a blessed week.

13/06/2018

Job Title: Surveyor
Organization: ProsRecruit
Duty Station: Kampala, Uganda

About US:
ProsRecruit was founded by a team of Human Resource professionals passionate about reinforcing the value of the human resource capital to create competitive strength and strategic advantage for your organization. That is why we have built our business model around knowing your recruits, to ensure your potential recruits are who they claim to be, can do what they claim to do, and have been where they claim to have been.

Key Duties and Responsibilities:
· Works closely with key stakeholders including, the Lead Surveyor, Survey Manager, Project Manager and engineers;
· In charge of routinely checking geometry and dimensions of design;
· Undertaking the daily surveying requirements including set out, calculations, data processing and management;
· Following established data management procedures;
· Accurately maintaining all survey information and records in accordance with project instructions;
· The Surveyor will also be maintaining survey calibration and equipment registers;
· Following survey procedures to ensure an accurate, effective models are produced; and
· Ensuring measure-ups and the necessary documentation are compiled efficiently
· Maintain company standards for Quality Assurance purposes
· Present neat documentation, correspondence and records as requested
· Send accurate daily, weekly and monthly reports as required
· Perform any other general duties to suit operational requirements as directed

Qualifications, Skills and Experience:
· The Surveyor should at least hold a Diploma or Degree in surveying.
· A minimum of five years’ experience in surveying with three years’ minimum experience working on site in the Construction or Resources sector.
· Proven verbal and written communication skills
· Provide and accept feedback in relation to role requirements, duties and results
· Actively engage confidently and openly with team members, colleagues and clients
· Request assistance to perform tasks or solve complex issues if required

Personal Competencies:
Teamwork:
· Provide assistance in the operational support to team members and colleagues
· Encourage and develop cooperation in the workplace and cohesive working strategies
· Accept accountability within the team and take responsibility for direct duties
· Share knowledge, skills and ideas to further improve policies, procedures and systems
· Build and maintain relationships with colleagues, clients and suppliers
Initiative & Motivation:
· Complete operational duties in an enthusiastic and cooperative manner
· Demonstrate a positive attitude to key responsibilities
· Volunteer for additional duties or specialist projects as directed
· Offer ideas and solutions to maintain awareness of current market trends
Organisation & Time Management:
· Plan workflows for successful and timely task completion
· Prioritize workloads for efficiency
· Persevere with complex tasks as required
· Demonstrate proficiency in multi-tasking
Health, Safety & Environmental:
· Take responsibility for your own safety whilst on any Civmec premises or project sites
· Promote working in a safe environment to all personnel
· Uphold Civmec's HSE policies and procedures
· Participate in all HSE initiatives
Training & Development:
· Mentor and coach staff to promote growth and development within the company
· Provide support and training as required to accomplish key responsibilities of the position
· Foster a culture of teamwork and employee involvement in the working environment
· Facilitate career development opportunities suited to each individual
Leadership:
· Display a confident and positive manner when directing others
· Accept responsibility for decisions made in relation to operational requirements
· Inspire and motivate team members and colleagues within the workplace
· Be proactive in raising company standards and processes

How to Apply:
All suitably qualified and interested candidates should send their updates resumes and cover letters to: [email protected]

15/01/2018

What is Surveying?
Surveying is the process of analyzing and recording the characteristics of a land area span to help design a plan or map for construction.

Total Station is the currently preferred Surveying equipment in the industry. Find out What is a Total Station here with us and about the Survey camp using Total Station workshop.

Categories of Surveying are:

1. Geodetic Surveying:
Surveys are carried out on a large scale with the help of control networks spanning over long distances.

2. Cadastral Surveying:
Surveys are carried out to define land ownership and boundaries.

3. Topographical Surveying:
Surveys are carried out to determine land structure along with variation in land heights.

4. As Built Surveying:
Surveys are carried out after completion of a construction project to check variance from proposed design.

5. Photogrammetry (Aerial Surveying):
Surveys are carried out by taking photographs from elevated ground stations.

6. LiDAR (Aerial Surveying):
Surveys are carried out using remote sensors and light reflected by lasers to measure distances.

Fundamental techniques used for Surveying are:
a) Triangulation:
In this technique numerous triangles are inter-connected and overlapped to measure angles from a surveying station.

b) Trilateration:
It follows the same technique as in Triangulation with additional use of Electronic Distance Meter (EDM).

c) Traverse:
In this technique multiple lines of pre-measured lengths are inter-connected to measure angles and distances.

d) Leveling:
In this technique the difference in heights in a terrain are measured with the help of graduated rods.

e) Radiation:
In this technique radiating lines are drawn from a focal point to defined boundaries converted to a small scale surveying sheet.

Surveying finds multiple industrial applications across various domains. It is an integral part of Civil Engineering Discipline.

21/12/2017

Thanx everyone here for making manafa a success

there we go. any one with the qualifications
08/12/2015

there we go. any one with the qualifications

Really thingz have gotten out of hand. more prayers pliz frds
03/07/2014

Really thingz have gotten out of hand. more prayers pliz frds

25/03/2014

Survcon busia opening soon

17/10/2013

lost ma phone in lira.

Address

Located At Abaita Ababiri Opposite Da Coca Cola Depot Along Airport Road Road
Entebbe

Telephone

0778772612

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