Trenchless Horizontal Boreholes

Horizontal trenchless drilling, also known as HDD (HORIZONTAL DIRECTIONAL DRILLING), is an innovative technique of installing underground pipelines without the need for surface excavation, which is overseen by Pigra Engineering S.L.

This method of horizontal drilling has become increasingly popular due to its numerous advantages, among which are the following:

  1. Reduced environmental impacts: as no excavation is required on the surface, the environmental impact is reduced compared to other pipe installation methods. Logging and disturbance of the natural landscape is minimised, which is especially important in sensitive or protected areas.
  2. Time and cost savings: Trenchless horizontal drilling can be faster and cheaper than other pipe installation methods. This is because there is no need for excavation and backfilling, which requires additional time and resources.
  3. Reduced risk of damage to pipes: installing pipes by trenchless horizontal drilling reduces the risk of damage to pipes, as they are not exposed to the hazards of excavation, such as impact or shock.
  4. Flexibility: the trenchless horizontal drilling technique adapts to different terrains, which makes it particularly useful in densely populated urban areas or in rocky or mountainous terrain.

The trenchless horizontal boring process involves the use of a specialised boring machine that allows the construction of a horizontal tunnel below the ground surface. The drilling machine has a drilling head that is inserted into the ground and moves forward while the pipe is being assembled behind it.


This trenchless horizontal drilling method is particularly useful in the installation of gas, water, electricity and telecommunications pipelines. Trenchless horizontal drilling can also be used for the installation of pipelines in sensitive areas such as parks, nature reserves and protected areas.


In conclusion, trenchless horizontal drilling is an innovative pipe installation technique that offers numerous advantages in terms of reduced environmental impact, time and cost savings, reduced risk of pipe damage and flexibility. Their use is rapidly increasing worldwide due to their many advantages and their ability to adapt to different terrains and environments.

 

The Horizontal Directional Drilling (HDD) is another drilling technique, supervised by Pigra Engineering S.L., which is used to install underground pipes horizontally without the need to dig a trench. This drilling method is especially useful in areas where excavation is difficult, such as in rocky terrain, in urban areas or in environmentally sensitive areas.


The horizontal directional drill is a machine consisting of a drilling head, a motor and a drilling rig. The boring head is the part of the machine that creates a tunnel below the ground surface. The drilling platform is the place where the machine operator is located and from where the drilling head is controlled.


The drilling process begins with the drilling of a pilot hole using a drill bit. Once the pilot hole has been created, a push rod is inserted into the hole and connected to the drill head. The drill head moves forward, dragging the push rod and assembling the pipe behind it. The machine can be precisely controlled to avoid obstacles and curves.


PHD is a very precise and efficient drilling technique. The size and depth of the tunnel that is created can be precisely controlled. In addition, horizontal directional drilling reduces environmental impact and the need to restore the ground surface after pipe installation. This is especially important in densely populated urban areas or in environmentally sensitive areas.


PHD is a very versatile drilling technique and is commonly used in the installation of water, gas, electricity and telecommunications pipelines. It is also used in the installation of fibre optic lines and in renewable energy projects such as the installation of offshore wind turbines. PHD, or horizontal directional drilling, is a technique that allows the installation of underground pipelines and cables without the need for deep excavation or surface destruction. This makes it a more efficient and environmentally friendly option compared to other installation methods. In addition, the accuracy and control of borehole direction make PHD a popular choice for projects in densely populated urban areas or where there is a need to minimise environmental impact and reduce land restoration costs.

The horizontal well drilling is another advanced drilling technique, overseen by Pigra Engineering S. L., that allows the extraction of hydrocarbons and other subway resources more efficiently and economically than conventional vertical drilling methods.


This horizontal drilling technique involves the creation of a vertical borehole which is then directed in a horizontal direction at a specific angle to reach an underground formation containing the desired resource, such as oil, natural gas, water or minerals.


Horizontal borehole drilling has numerous benefits compared to traditional vertical drilling. On the one hand, it allows access to oil and gas deposits that were previously inaccessible. It also increases the productivity and lifetime of existing wells, as it can extract more resources from the same well.


Pigra Engineering S.L. oversees trenchless technology, which is a set of techniques and tools that allow the construction, maintenance and repair of infrastructures without the need for excavation. This means that work on pipes, cables and other infrastructure elements can be carried out without having to dig trenches in the ground, which significantly reduces the environmental impact and costs associated with infrastructure construction and maintenance.


Trenchless technology has become an increasingly common practice in the construction and civil engineering industry. With the use of specialised tools, a wide variety of underground infrastructure works can be carried out, including the installation of new pipes and cables, the repair of damage, inspection and maintenance of existing networks, among others.


Techniques used in trenchless technology include horizontal directional drilling, pneumatic excavation, high-pressure water cutting, among others. All these techniques have in common the fact that they allow working on underground infrastructures without having to carry out excavations that could damage the environment or affect nearby communities.


In addition to reducing environmental impact and costs, trenchless technology also offers other advantages, such as reduced construction times and increased worker safety. By not having to work in open and exposed areas, workers are less at risk of accidents, which translates into greater safety for them and for the community at large.


In short, trenchless technology is an increasingly popular and viable alternative in the field of construction and civil engineering. With their use, the problems and risks associated with conventional excavation, such as damage to underground infrastructure, disruption to traffic and inconvenience to local residents, can be avoided. In addition, trenchless technology is more efficient and cost-effective, as it requires less manpower and less time to complete a project. In summary, trenchless technology offers numerous advantages for both construction companies and society at large, and its use will continue to grow in the future.

The mole drilling is a technique used in the mining industry to extract ore underground. This technique consists of drilling a vertical hole in the rock using a machine known as a “mole” or “jumbo”. The mole is a large and robust machine with several hydraulic arms that allow it to drill the rock accurately and efficiently.


Mole drilling is a technique widely used in underground mining, as it allows access to deep areas of the ground where it is difficult to reach with other extraction techniques, which is why Pigra Engineering S. L. supervises it. In addition, this technique is very accurate and efficient, making it one of the most cost-effective techniques for ore extraction.


In order to drill with a mole, the ground must first be prepared. This involves a geological survey of the area to understand the rock structure and to determine the location of the ore veins. Once this information is available, construction of the infrastructure necessary to carry out the drilling begins.


The mole machine moves on rails and is positioned at the place where the drilling is to take place. The hydraulic arms of the mole have different sized bits that are used to drill the hole in the rock. These drills rotate at high speed and generate heat, so they must be cooled with water to prevent them from overheating and deteriorating.


Once the hole has been drilled, the explosives are placed inside the hole and blasting takes place. The blast causes the rock to fracture and release the ore, which is then collected and brought to the surface for processing.


Mole drilling is a very efficient and accurate technique, but it also requires a high level of safety. Underground mining is a dangerous activity and extreme measures must be taken to protect the physical integrity of workers. In addition, environmental and safety standards set by the competent authorities must be complied with.


In conclusion, gopher drilling is a technique widely used in underground mining to extract ore efficiently and cost-effectively. This technique requires careful site preparation and a high level of safety to protect the physical integrity of the workers and to comply with environmental and safety standards set by the competent authorities.

A pipeline mole, also known as a directional driller or HDD (Horizontal Directional Drilling), is a machine that allows the installation of underground pipelines without the need to dig a trench. This process is carried out through the horizontal drilling of the ground, which allows the pipe to be installed in a tunnel previously excavated by the machine.


The process of pipe installation with a pipeline mole starts with a site survey and planning of the pipe route. Once the route has been defined, a starting shaft is excavated, from where the drill head will be driven into the ground. This head, equipped with a drill bit, bores into the ground and advances horizontally through it, creating a tunnel for the pipe.


The machine can control the direction and depth of drilling, allowing it to negotiate underground obstacles and reducing the need to dig large trenches. In addition, the machine’s precision drilling can help prevent damage to pipelines and other underground utilities, which can save time and money on repairs. Overall, the use of these machines can improve efficiency and safety in the construction of underground infrastructure, which is beneficial for both contractors and the communities that benefit from this infrastructure.

The horizontal borehole is a subsurface exploration technique that consists of drilling a pipe horizontally through the ground to obtain information on the geology and composition of the soil. This technique is commonly used in construction and civil works projects, such as pipeline installation, road construction and underground infrastructure installation.


The technique of horizontal drilling has been developed in order to minimise environmental impact and reduce construction time and costs. Horizontal drilling avoids digging large trenches in the ground, which reduces the amount of soil to be removed and reduces the amount of waste generated. In addition, the absence of the need for large trenches reduces the risk of damaging existing above-ground infrastructure.


The process of drilling horizontal boreholes begins with the selection of the location where subsurface information is to be obtained. Once the point has been chosen, a preliminary study of the ground is carried out to determine the depth and direction of the borehole required. A vertical borehole is then drilled to the desired depth.


Once the desired depth has been reached, horizontal drilling is carried out by means of a drilling tool that is inserted into the pipe. This tool has a cutting head that excavates the ground and a video camera that allows real-time visualisation of the drilling process.


The tool moves across the ground, opening a horizontal tunnel as it goes. Once the borehole is completed, the pipe is installed in the tunnel and sealed with cement to ensure the stability and safety of the system. This method of horizontal drilling is widely used in the installation of pipelines for gas, oil, water and other utilities, as it minimises the need for excavation and reduces costs and construction time. In addition, it is also used in the construction of infrastructure such as roads, bridges and railways, to avoid traffic disruptions and reduce the environmental impact of the work.


In the construction of infrastructure and utilities, the installation of pipelines is an essential task. Traditionally, however, this process has required the digging of trenches and the disruption of traffic and the daily lives of people in the area. But thanks to technology, there is a more efficient and less invasive solution: the use of pipe moles.

A pipeline mole, also known as a directional driller or HDD (Horizontal Directional Drilling), is a machine that allows the installation of underground pipelines without the need to dig a trench. This process is carried out through the horizontal drilling of the ground, which allows the pipe to be installed in a tunnel previously excavated by the machine.

The process of pipe installation with a pipeline mole starts with a site survey and planning of the pipe route. Once the route has been defined, a starting shaft is excavated, from where the drill head will be driven into the ground. This head, equipped with a drill bit, bores into the ground and advances horizontally through it, creating a tunnel for the pipe.

The machine can control the direction and depth of drilling, allowing it to negotiate underground obstacles and reducing the need to dig large trenches. In addition, the machine’s precision drilling can help prevent damage to pipelines and other underground utilities, which can save time and money on repairs. Overall, the use of these machines can improve efficiency and safety in the construction of underground infrastructure, which is beneficial for both contractors and the communities that benefit from this infrastructure.

The hydraulic mole is a construction tool used for the excavation of underground tunnels. These machines are capable of drilling through a wide variety of materials, from hard rock to soft soils, and their use has revolutionised the way underground infrastructure is constructed.

 

The operation of a hydraulic mole is relatively simple. It consists of a hydraulic cylinder that drives a rotating cutting head, which can vary in size and shape depending on the type of ground being excavated. The machine is inserted into a starter pit, which is previously dug into the ground, and the cutting head begins to drill forward, moving the soil or rock to the rear of the mole, where it is extracted via a conveyor system.

One of the main advantages of hydraulic moles is their ability to negotiate underground obstacles. Unlike traditional excavation methods, such as digging by hand or with excavating machines, hydraulic moles can drill through hard rock and other obstacles without the need to dig large trenches. This not only saves time and reduces excavation costs, but also minimises the risk of damage to pipes, cables and other underground utilities that might be present in the area.


In addition, hydraulic moles are more accurate and controllable than traditional methods, which means that boreholes can be drilled with greater precision and in more difficult-to-reach places. This ability to negotiate underground obstacles and drill precise boreholes makes hydraulic moles a valuable tool for a wide variety of applications, such as pipeline and cable installation, tunnel construction and geological exploration.

A homemade tunnel boring machine is a machine that allows tunnelling in an artisanal way. This type of TBM is commonly used in small-scale construction projects, such as tunnels for power cables, water and drainage lines.


Homemade TBMs consist of a cutting head that is mounted on a structure that moves through the tunnel as it is bored. The cutting head is equipped with blades that are responsible for cutting and removing the material from the ground as it moves forward.


To build a homemade TBM, you need a metal frame, a power source, a cutting chain and a light source. The metal frame is used to support the cutting chain and cutting head, and also to provide a means of forward movement. The power source can be an electric motor or an internal combustion engine, and is used to drive the cutting chain and the cutting head. The light source is used to provide illumination inside the tunnel.


To use a home-made TBM, the cutting head is placed at the starting point of the tunnel and the power source is switched on. The cutting head will begin to rotate and cut the ground as it moves forward. The metal frame moves forward to push the cutting head as it moves forward.

It is important to note that home-made TBMs are not as efficient as commercial TBMs. This is because commercial TBMs are designed to bore tunnels at higher speeds and at greater depths. In addition, homemade TBMs require more human effort to operate, as they do not have advanced automation systems.

In short, homemade TBMs are a very dangerous idea and not recommended under any circumstances. Tunnel construction requires specialised knowledge in civil engineering and appropriate heavy machinery, which cannot be replicated with homemade construction materials and basic DIY tools. In addition, the safety and stability of tunnels are critical to avoid collapses and fatal accidents. Ultimately, it is important to be aware of the risks and always seek the advice of trained professionals if tunnel construction is required.