China creates world’s first boring and blasting tunneller to rip through hard rock

 

Chinese scientists have developed the world’s first boring and blasting machine (BBM), which is expected to boost efficiency in excavating extremely hard rock by more than 30 per cent.
The machine is expected to be used in water conservancy and hydropower projects, mining, and the construction of highways and railways, according to Chen Jiale, a researcher at China Railway Science & Industry Group Corporation (CRSIC).

“The development of the boring and blasting machine can solve current challenges in long and large tunnel construction, offering a new solution for such projects,” he said in an interview published on Monday by China’s Science and Technology Daily.

The BBM uses a combination of mechanical, electrical, hydraulic, sensing, mechanics and guidance technologies, allowing for the simultaneous use of traditional drilling and blasting methods, alongside the power of modern tunnel boring machines

The machine features two cutter heads and leverages the complementary advantages of each method, improving efficiency while also being environmentally friendly.

“It effectively combines the functions of tunnel boring machines (TBMs) and traditional drilling and blasting methods, featuring multiple excavation modes,” Chen said.

According to the Science and Technology Daily report, the BBM has completed trials under three different working conditions. The trial results showed that “under extremely hard rock conditions, the efficiency of the hollow cutter head can be increased by 30 per cent after pre-cracking treatment”.

A limitation of conventional TBMs is their tendency to jam and cause delays when they encounter complex geological conditions such as rock bursts, fault zones, and significant deformations in soft rock.


We are thrilled to extend a warm welcome to the China Scientist Awards!

Join us for the China Scientist Awards, a premier event in the realm of research. Whether you're joining virtually from anywhere in the world, this is your invitation to explore and innovate in the field of research. Become part of a global community of researchers, scientists, and professionals passionate about advancing research.


Nomination Link: https://x-i.me/chinom 


Our conference theme, "China Scientist Awards for a Connected Future," sets the stage for a year of discovery. Dive into groundbreaking research, engage with experts, and be part of the global conversation shaping the future of research.


China Scientist Awards
chinascientist.net

For inquiries, contact us at contact@chinascientist.net


Comments

Post a Comment

Popular posts from this blog

World’s first Ride-on Robot Dog

Image
  Chinese firm unveils world’s first ride-on robot dog for all-terrain adventures A Chinese company has unveiled the world’s first  robot dog  to feature the precise motor control required to carry a person safely across the most rugged terrain, making it suitable for a range of military and civilian uses, according to online commenters. B2-W, a four-legged, wheeled robot that features precision posture control and advanced acrobatics, was showcased in a video posted by developer Unitree to its social media account on Monday. In the video, B2-W performs mid-air flips, rotations and handstands while also demonstrating remarkable stability as it descends a nearly 60-degree gravel slope, navigates streams, climbs waterfalls and speeds across a range of terrains. The robot is also shown temporarily retracting its hind legs, performing inverted landings, and jumping from a height of 1.9 metres (6.23ft). In standard four-legged mode, it can leap from 3 metres, absorbing the imp...
Read more

Chinese research team creates tiny, wireless brain sensor

Image
  Chinese researchers have developed a sesame seed-sized, biodegradable and wireless brain sensor that could potentially transform the way brain conditions are monitored in patients with head injuries or tumors. The conventional method used to measure intracranial pressure, temperature and other brain health barometers is inserting a wired sensor into the brain. Implantation and removal of the device require surgery, and openings left in the skin during monitoring increase the risk of infection. To address these problems, researchers at Huazhong University of Science and Technology in Wuhan, Hubei province, along with those from Tong Ji Hospital in the city and Nanyang Technological University in Singapore, created a cubeshaped wireless sensor measuring 2 millimeters on each side. The tiny tube can be injected under the skull through a needle and operated through an external ultrasound probe, eliminating the need for invasive operations and preventing infections. Because the implan...
Read more

US-China space cooperation could help fight climate change

Image
  This image taken from video animation at Beijing Aerospace Control Center on June 4, 2024 shows the ascender of China's Chang'e 6 probe , carrying samples collected from the moon's far side, lifting off from lunar surface.  China's recent retrieval of the first-ever samples from the far side of the moon has renewed talks about the possibilities of the United States and China joining in space-based research programs aimed at addressing global challenges, particularly climate change. "The US and China each have very innovative space programs, and one area, for example, where the US and China could work together today would be space-based solar," Daniel Kammen, a professor of energy at the University of California, Berkeley, and founding director of the university's Renewable and Appropriate Energy Laboratory. Space-based solar power, a concept involving the collection of solar energy in outer space via satellites and its distribution to Earth, has been ga...
Read more