Research Report Abstract Draft

What are the differences between trench and trenchless technology methods for sewer rehabilitation construction in Kamloops?

Most of Kamloops is served by a sanitary sewer collection system, which is made up of over 500 kilometres of sewer pipes. That is a lot of pipe that can become broken or damaged, so to have an efficient method to replace or repair broken or damaged piping in Kamloops is essential because groundwater contamination is a serious environmental hazard. Sewer piping can become damaged due to settling or frozen soil, blocked due to grease build-up or foreign objects, corroded due to pipe deterioration, or root infiltrated due to tree or shrub roots. When a portion of sewer line needs to be accessed for pipe replacement or repair, the open cut method or the trenchless method can be used.


For sewer pipe rehabilitation construction, the open cut method uses a backhoe or small excavator to open the area surrounding the pipe. In some cases, the excavation may become deeper than 3 meters, so shoring may be required. There are different trenchless methods for this type of construction, but they all use two small access holes where the damaged pipe starts and ends. With the trenchless pipe bursting method, a hydraulic machine is placed in an access whole where the damaged pipe ends. This machine pulls a bursting head through the old sewer pipe’s path, breaking up the damaged pipe while pulling a new replacement pipe from an access whole where the damaged pipe begins, to where the damaged pipe ends. This is an ideal technique to use for the rehabilitation of ageing utility systems located in municipalities, because it involves very little disturbance on the nearby underground utilities.



The trenchless fold and form method is an effective sewer rehabilitation method that repairs existing underground sewer pipeline. The liner is heated, pulled into the damaged pipe, and reformed with steam and air.

There are many other trenchless technology methods, but this report will not covering them because they are used for new sewer piping construction. The trenchless slip lining is used for pipe rehabilitation, but will also not be covered because in this method, a new pipe is pulled into the damaged pipe, fitting close to the existing pipe, however, still causing quite a bit of inside pipe diameter difference, which isn’t good for sewage flow rates.

Trench vs. Trenchless

In sewer line replacement, the pipe bursting method of trenchless technology disturbes less of the environment then the trench method.

Revised Project Outline

Trench and trenchless technology for sewer construction in Kamloops

Project:

Research how trenchless technology methods compare to trench methods for sewer construction in Kamloops to answer questions to be able to write the analytical report required for the graduation of the Engineering Design and Drafting Technology program.

Method:

1. understand the differences of trench and trenchless technology methods for sewer construction,

2. interview experts in the industry, and

3. create drawings of the different trenchless technology methods and trench methods for the report.

Possible special problems:

1. Could there be too many different trench and trenchless technology methods to talk about?

2. What machinery would be required for the trench and trenchless technology methods?

3. What the pros/cons of trench and trenchless technology in Kamloops? and

4. Is sewer construction pricing available?

New Direction

Hi everyone,
I have chosen a narrower aspect of trenchless technology to write my report on. My research is now going to focusing on how trenchless technology methods compare to trench methods for sewer construction in Kamloops.

What is Trenchless Technology?

With minimal or no need for excavation, trenchless technology is an alternative construction method that allows for installation, rehabilitation, or replacement of underground public services.

Older Planning Outling

Trenchless technology in Kamloops

Project:
Research if trenchless technology is an efficient and sustainable method of underground construction for Kamloops.

Method:
1. Find out what makes an underground construction method sustainable,
2. find out what makes an underground construction method efficient,
3. interview experts in the industry,
4. assessing the gathered information and determining if trenchless technology is efficient and sustainable for Kamloops, and
5. create drawings of the different trenchless technology methods for the report.

Possible special problems:
1. what the different methods of trenchless technology are,
2. what machinery would be required,
3. what the pros/cons of trenchless technology in Kamloops are, and
4. if trenchless technology is feasible in Kamloops.

With these questions answered I can begin to write the anylitical report required for the graduation of the Engineering Design and Drafting Technology program. Sadly I feel I will have to choose a definite aspect of trenchless technology to write my report on because this might be to broad... but not yet!