The LDJ400 series multifunctional tunnel boring machine is an advanced equipment launched by lanhi for non-explosive tunnel excavation. This tunnel boring machine mainly uses high-frequency hammer or breaker hammer to break rock, cooperates with bucket teeth or drill rods to wedge into the surrounding rock to break rock, and uses the gravity of the free surface below the surrounding rock to automatically break rock. High-frequency hammer is suitable for rocks with a hardness below 35MPa, while for rocks with higher hardness or poor development, breaker hammers are used for construction. The LDJ400 series tunnel boring machine can cope with various types of surrounding rock construction, reduce the risks of over-excavation and collapse, and ensure construction efficiency and safety.
1. Efficient excavation
Under the conditions of IV and V grade surrounding rock, the comprehensive excavation efficiency of LDJ400 can reach 50 cubic meters per hour, which significantly improves construction efficiency and saves construction time.
2. Small disturbance of surrounding rock
Using non-explosive excavation, LDJ400 has very little disturbance to the surrounding rock, reducing the impact on the stability of the surrounding rock during construction and ensuring the safety of the tunnel structure.
3. Accurate over-under control
The whole machine has precise motion control, which can control the over-under of the contour surface within 20 cm, ensuring the accuracy of tunnel excavation and construction quality.
4. Spray dust removal system
The LDJ400 is equipped with a dust removal spray system to effectively control the dust generated during the construction process, improve the construction environment, and protect the health of operators.
5. High-frequency rock breaking technology
The tunnel boring machine is equipped with a three-tooth seat or two-tooth seat high-frequency breaker, which has a fast rock breaking speed and strong impact force, and can quickly break hard rocks and improve construction efficiency.
6. Remote control operation
The remote control system is adopted, which is simple and convenient to operate. The operator can flexibly adjust the position, facilitate operation and monitoring of the construction process, and improve safety and operation efficiency.
7. Diesel-electric dual-action mode
The LDJ400 has a diesel-electric dual-action mode, diesel power is used for emergency and transfer, and electric power is used for daily construction. The electric mode has low construction cost and no exhaust pollution, which helps to keep the air in the tunnel fresh and reduce heat accumulation.
8. Efficient slag discharge system
Some models are equipped with slag collection and discharge devices, with a slag discharge capacity of up to 180 cubic meters per hour, which meets the needs of fast slag discharge without leaving the site for small-section equipment, further improving construction efficiency.
LANHI's LDJ400 multifunctional tunnel boring machine has become an ideal choice for tunnel construction with its efficient excavation capacity, low-disturbance construction method, precise over-under control and advanced dust removal system. This equipment not only improves construction efficiency, but also improves construction safety and environmental protection level, providing reliable technical support for non-explosive tunnel excavation.