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    Two major factors for the slow development of rotary drilling rigs---Datian rotary drilling rig accessories

    * : * : admin * : 2022-02-25 15:37:55 * : 0
    Two major factors for the slow development of rotary drilling rigs---Datian rotary drilling rig accessories

    The rotary drilling rig has the characteristics of large installed power, large output torque, large axial pressure, flexible maneuverability, high construction efficiency and multi-function. Because the rotary drilling rig is a low-noise, non-vibration and environment-friendly drilling rig, the noise is within 65 decibels during the drilling process, and the original soil is excavated during the drilling process. Thereby, no mud discharge can be realized in the pore-forming process. If the water content of the excavated original soil is too large or in a fluid plastic state, if an on-site fluid plastic soil water reduction and solidification treatment device is installed, the excavated fluid plastic soil will become dry soil after water reduction and solidification treatment. Unloading for shipment meets the requirements of urban environmental protection. Although there are so many advantages, the factors that restrict the rotary drilling rig at this stage cannot be underestimated. It is mainly explained from two aspects: --- Datian rotary drilling rig accessories

    On the one hand, the high price of equipment is the main factor restricting its development:

    The diameter of the bored pile is generally 1.2 to 1.5 meters. When purchasing equipment, enterprises generally need to consider the safety reserve factor, and the construction capacity of the purchased rotary drilling rig is slightly larger. Therefore, the construction diameter of the most widely used rotary drilling rigs is between 1.5 and 2 meters. The price of a rotary drilling rig is more than 4 million yuan. If the construction diameter is larger, the price of a drilling rig plus accessories will be tens of millions of yuan. For general construction units, especially for the vast majority of geological teams engaged in pile foundation construction, investing several million or even tens of millions of yuan to purchase equipment at one time is difficult for enterprises with weak financial strength to bear, and the second is Judging from the current management system, even if an enterprise has the ability to purchase this advanced construction equipment, its leaders will consider various factors and will not purchase it easily. ---Datian rotary drilling rig accessories

    On the other hand, the high operating cost of rotary drilling rigs is also a major factor restricting the purchase of construction companies:

    From the introduction of the drilling rig manufacturer and the actual use of the user, the normal working life of the rotary drilling rig under full load is 6300 hours. After this life is exceeded, some components need to be replaced and repaired, especially the main hoisting system and hydraulic system. Pumps, power heads, drill pipes, etc., these components are expensive and take a long time to replace after damage. This greatly increases the operating cost of the rotary drilling rig in actual use, and accordingly increases the construction cost of the pile foundation. At present, due to the fierce competition in the pile foundation market and the unstandardized competition, many pile foundation projects are subcontracted layer by layer before they reach the construction enterprises. The project prices are relatively low, and there is not much profit space. Drilling rig construction, although the construction efficiency is high and the project quality is good, but the profit is very low or even loss. This is also the main reason why many construction companies do not buy rotary drilling rigs, or even deliberately idle them, but still use traditional and relatively backward construction methods. ---Datian rotary drilling rig accessories

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