Are you interested in the innovative technology of horizontal directional drilling? 

Do you want to make underground gravity installations 
between existing sewage chambers fully trenchless?

We would like to inform you that our company will take part in the international fair, covering the industry related to the construction of external plumbing systems, WWETT 22, which takes place in the USA, at the Indiana Convention Center, 100 S. Capitol Ave. Indianapolis, IN 46225, February 21-24, 2022.

We invite you to visit our stand no. 6561.

Get to know our innovative technology. Visit our stand at the fair.

Below are the maps that will help you get to our stand:

 Below is the link to the fair and the organizer:

 Common trenchless technologies

Trenchless technologies are constantly gaining new application areas. Among the offers of machines for their implementation, we have equipment for horizontal jacking, all kinds of worm drills and microtunneling devices on the market. We have access to very precise hydraulic jacking machines and HDD drilling rigs. It can be assumed that the market of equipment for the implementation of underground installations using trenchless methods allows for the implementation of all underground installations, in particular in situations and places where traditional excavation technologies would cause difficulties for the environment or would be impossible due to the existing building conditions. There are, however, such projects, the execution of which with commonly known and used trenchless machines and technologies is difficult or even impossible to be fully trenchless. These include precise gravity installations, in which the main parameter is maintaining straightness along the entire length and a specific, very precise angle in relation to the level, called gravity slope. This decrease is precisely calculated by the sewer network designer. The lack of its implementation during construction prevents the proper functioning of the entire sewage network. Such installations include all sewer and retention connections and sewer interconnections. A particularly difficult case of such installations, where the disadvantages of typical trenchless machines and technologies are clearly visible, are installations connecting existing sewage manholes: typical DN 1000 or DN 1200 or other non-standard ones. Such installations can be described as the most difficult to implement and the most demanding. In such situations, there is no chance of a complete installation with trenchless technology, taking into account commonly available trenchless technologies. Typical machines, which can meet the given precision and allow for effective overcoming obstacles in the ground, require starting chambers larger than the cubature of a typical sewer well. Therefore, it becomes necessary to partially dismantle the existing infrastructure: usually a sewage well and a fragment of the adjacent area, which is usually the surface of a road or pavement.

Gravity Drilling Rig

To perform such installations 100% trenchless, the Gravity Drill has just been developed. This device and the technology of horizontal directional drilling, known as the technology of Gravity Drilling, was developed precisely in order to make all such installations fully trenchless, without the need for any interference with the existing infrastructure, in particular road infrastructure.

For more than twenty years, the MIDO company has been undertaking the implementation of such difficult installation cases, using all commonly available equipment and technologies. Unfortunately, the equipment was sometimes unreliable, but most of all its limited capabilities did not allow for proper execution of the projects undertaken. Therefore, at the beginning of their activity in the field of construction of underground installations, the employees for the implementation of subsequent installations developed and used a self-developed, at first defective and imperfect machine, called the Duct Drilling Machine. Years of practice and resulting machine modifications have refined this technology to perform even the most demanding installation tasks without problems. The Gravitational Drilling Rig and the Gravity Drilling Technology were created. These names are related to precise, gravity sewage installations.

The undoubted advantage of the Gravity Drilling technology is the possibility of making installations between the existing sewage wells, without the need to disassemble any elements in their vicinity. Work only takes place between the starting well and the ending well. The illustration below shows schematically the stages of building an underground installation using the Gravity Drilling Rig.

The only nuisance for the surroundings is the necessity to exclude from traffic the lanes in which these wells are located. This is a very important feature. In the case of other trenchless technologies, the implementation of a gravity installation between the existing wells involves significant interference with the surroundings and most often the necessity to exclude the entire road, running and adjacent to the wells participating in the construction, from traffic. Another feature that distinguishes the Gravity Drilling technology is the ability to overcome any hard obstacles that may occur in the ground along the drilling route. None of the other available technologies, allows like the Gravity Drilling Rig, to maintain precision, straightness and the set gravitational drop in difficult ground conditions, when drilling encounter hard obstacles in the form of pebbles, concrete elements or debris. An extremely important feature, related to the ability to overcome obstacles while drilling, is the very precise gravity fall. We can make sewage systems with an accuracy of 0.2%, which is unattainable in the case of other trenchless technologies.

Gravity Drilling Technology - a handful of advantages

By comparing the Gravity Drilling technology developed by MIDO to other currently available, popular, typical and commonly used trenchless technologies in the field of horizontal directional drilling, we ensure:

1. Reduction of costs and time up to 1/4 of the original value, compared to the execution with the use of excavation technologies.
We avoid costly and long-term works related to the organization of construction and excavation works.

2. Cost and time reduction to half the value compared to other trenchless technologies.
The use of other trenchless technologies would involve partial disassembly of the existing wells and pavement elements in the area of these wells.

3. No traffic difficulties caused by excluding the streets and sidewalks in the immediate vicinity of the construction site.

4. Certainty of achieving the specified, even very precise gravitational gradient of the installation being built.

An example of the above-mentioned features and advantages can be one of the installations made by MIDO:

Or other projects made by MIDO using the Gravity Drilling technology:

Also worth reading:

We are pleased to announce that in the 22nd edition of the Pomeranian Economic Award 2021 competition, the Gravitational Drilling Technology what we use, was awarded in the "Innovation leader - medium and large enterprise subcategory" category. Nearly seventy organizations entered the competition, of which thirty-two organizations qualified for the finals.

The technology of gravity drilling is undoubtedly a significant innovation and new possibilities for the construction of underground sewage systems using trenchless technologies. The idea to develop this technology was born over twenty years ago, in the company MIDO, offering the construction of installations using trenchless methods. In recent years, MIDO was a small company offering trenchless installations using typical solutions and technologies available on the market, such as uncontrolled jacking, static and dynamic cracking, horizontal drilling and others. The problem was the possibility of fully trenchless execution of precise gravity installations in densely built-up urban infrastructure. There was no availability and no possibility of purchasing equipment and technology on the market for the implementation of construction sites under such conditions and assumptions. Particularly problematic was the execution of a fully trenchless and precise installation between the existing, typical DN 1000 or DN 1200 sewage chambers. These factors and market requirements made the entire MIDO team attempt to develop their own technology and devices to meet such requirements. In the last years of the end of the last century, the first machine designs were created, with which MIDO implemented subsequent installations. The following years were marked by the continuous work of the MIDO team on improving the reliability and functionality of these devices. Recent years, during which MIDO started to cooperate with TERMA in the field of design, production and construction of construction machinery, resulted in a significant improvement in the possibilities, effectiveness and reliability of the Gravity Drilling technology. Currently, MIDO already has several teams that, equipped with the latest technological solutions, provide trenchless assembly services for underground gravity installations throughout Poland and in other European countries. The technology of precise controlled drilling, enabling the execution of precise sewage installations, is gaining more and more satisfied customers and investors. 

You can see selected opinions on MIDO services by clicking on the graphic below.

Until now, MIDO has already completed hundreds of installations using the Gravity Drilling technology. You can read about selected construction sites by clicking on the graphic below.

On September 7-9, 2021, we had the pleasure to participate in the 19th International Conference on Trenchless Engineering 2021, during which we presented the technology of Gravity Drilling, developed jointly with TERMA and used by us. The event was accompanied by the awarding and presentation of the TYTAN 2021 awards, internationally recognized awards in the trenchless industry, awarded by an international jury composed of, among others, representatives of the world of science and industry associations.

The prizes were awarded in several categories:

• project of the year - new installation
• project of the year - renovation
• European project in trenchless technologies
• small trenchless project
• product of the year

The Gravitational Drilling technology what we use was entered in the competition in the Product of the Year category. The jury decided that our technology deserves a special distinction, among other products submitted and nominated for the competition, by awarding it the TYTAN 2021 award.

We are delighted that the members of the jury saw a great potential in the Gravity Drilling technology we use.

The won award will certainly contribute to a stronger promotion of this project in the world of construction of underground transmission networks.

All of us will benefit from this, because thanks to the technology we use, it is possible to significantly reduce the costs of building the installation and significantly reduce the pollution emitted to the environment, generated during construction projects. We would like to thank all participants of the conference. We would like to thank everyone who visited our stand and those who participated in the discussion panel related to our technology. Thank you for very fruitful conversations and comments provided to us.

XII Scientific and Technical Conference.
Topics: Breakdowns, monitoring, construction and modernization of the WOD-KAN network.

This is one of the most important industry events in Poland, related to the subject of water and sewage networks. It is a perfect place to exchange experiences and knowledge. The subject of the conference is related, inter alia, to the following issues:

• networks of the future, i.e. on the directions of changes in the water and sewage infrastructure,
• network construction materials - new products on the market,
• ongoing maintenance of water and sewage pipes,
• water and sewage network monitoring,
• network management systems,
• causes of failures and their prevention and removal.

Time and place of the event: August 5-6, 2021 in Wisła, Poland.

We will be present at this conference with our innovative technology for precise horizontal drilling. We encourage you to participate in discussion panels in which we will participate, with our topic: "Innovative technology of making precise horizontal drillings in dense urban buildings". And at our stand, we will present the unique features and capabilities of our gravity drilling technology. We are happy to answer any questions you may have.

You can read more about our technology by clicking on the graphic below: