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10 Q&A About Trenchless Technology

10 Q&A About Trenchless Technology

1. Why is trenchless technology needed? Answer: (1) Pipeline laying, replacement, and repair work that passes through rivers, lakes, important traffic arteries, and important buildings without excavation. (2) Social reasons: It can solve the interference of traditional excavation construction on the normal life of residents, and the damage and adverse effects on the traffic, environment, and surrounding building foundations. (3) …

Application of Trenchless Technology in the Construction of Long-distance Pipeline

Application of Trenchless Technology in the Construction of Long-distance Pipeline

Although trenchless technology started later than other technologies, it has been developed by leaps and bounds in theory and construction techniques in recent years. Trenchless technology, as an extremely important construction method for laying pipelines, has its own unique advantages. It can avoid excavating the roadbed on the ground, and has the characteristics of low impact on related buildings and …

Track Line Design Of Trenchless Drilling Rig

Track Line Design Of Trenchless Drilling Rig

In the directional drilling process of trenchless drilling rigs, the drill bit moves in two ways, reverse drilling and only pushing. When reverse drilling, the direction does not change, and the orbit line is a straight line; when pushing, the law changes, and the orbit force is in the underground space curve. In this way, the entire drilling track is …

Causes Of Ground Subsidence And Swelling During Construction Of Trenchless Drilling Rigs

Causes Of Ground Subsidence And Swelling During Construction Of Trenchless Drilling Rigs

During the construction of trenchless drilling rigs, improper placement of the pipe joint sealing ring or damage to the pipe end due to uneven force will cause soil erosion, resulting in ground settlement and uplift. If the thixotropic mud anti-friction technology is used for pipe jacking construction, the leakage of pipe joints will also cause the loss of thixotropic mud, …

Construction Advantages And Precautions Of Horizontal Directional Drilling Rig

Construction Advantages And Precautions Of Horizontal Directional Drilling Rig

In the construction of long-distance pipe jacking by horizontal directional drilling rigs, the relay room assembly is placed at regular intervals to reduce the long-distance and large-tonnage jacking force in stages, and reduce the jacking force of the main jacking cylinder and the bearing force of the backrest of the working well. The oil cylinder seals are sealed with high …

7 Characteristics Of Horizontal Directional Drilling Construction

7 Characteristics Of Horizontal Directional Drilling Construction

Horizontal directional drilling rigs are becoming more and more popular in modern construction because they have the advantages of fast construction speed, low construction accuracy, and low cost. They are widely used in pipeline laying construction projects such as water supply, gas, electricity, telecommunications, natural gas, and oil. Construction characteristics of horizontal directional drilling rig: 1. The directional drilling crossing …

Structural Analysis Of Horizontal Directional Drilling Rig

Structural Analysis Of Horizontal Directional Drilling Rig

Horizontal directional drilling rig is a construction machine that lays a variety of underground utilities (pipes, cables, etc.) without excavating the ground surface. It is widely used in flexible pipelines such as water supply, electricity, telecommunications, natural gas, gas, and oil. In paving construction, it is suitable for sand, clay, and other ground conditions. The composition structure of the horizontal …

Influence of Geotechnical Engineering Investigation on the Construction of Horizontal Directional Drilling

Influence of Geotechnical Engineering Investigation on the Construction of Horizontal Directional Drilling

The horizontal directional drilling method is a technique that uses drilling equipment installed on the ground to drill into the formation at a small incident angle relative to the ground to form a pilot hole, and then expand the pilot hole to the required size and lay the pipeline. Compared with other non-excavation technologies, horizontal directional drilling technology has the …

Accurate Positioning Method Of Horizontal Directional Drill

Accurate Positioning Method Of Horizontal Directional Drill

Commonly used horizontal directional drilling steering positioning method is used to measure the angle and position information of the drilling tool while directional drilling underground. This method completes the measurement by setting up a sensing transmitting probe in the steering drilling tool, setting up a walking positioning tracker on the ground, and setting up a driller monitor on the drilling …

Structure Of Horizontal Directional Drilling Power Head

Structure Of Horizontal Directional Drilling Power Head

The structure of the power head of the horizontal directional drill is generally driven by a high-speed motor to drive the reducer, the reducer drives the power head, and the output shaft of the reducer drives the drill rod to rotate, and the output shaft is hollow. The power head has the following functions: driving the drill bit to rotate; …

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