The importance of the shield machine in the field of underground tunnel excavation is comparable to that of the lithography machine in the field of chip manufacturing, which can basically be said to be an indispensable core equipment. The shield machine can effectively improve the speed and safety of tunnel excavation, and can also independently complete the tasks of earthwork excavation, address survey, and environmental detection, which is equipped with many advanced excavation and propulsion systems, and can also form a "protective layer" to increase the safety of tunnel excavation.
We realized the importance of shield machines for a long time, so although we started late in the field of shield machines, we also needed to import them to meet domestic demand at the beginning. However, we started the plan of independent research and development of core technologies very early, and started the research and development project of domestic shield machine.
It is precisely for this reason that we have developed very rapidly in the field of shield machines, and since the establishment of relevant research and development plans, we have continued to break through technology, and we have manufactured domestic shield machines. Later, we went one step further on this basis, mastered more core technologies of shield machines, and even developed large shield machines with extremely high technical difficulty and very complex manufacturing difficulties.
With the technical advantages of shield machines, the performance of our shield machines is very good, coupled with the huge production capacity of Chinese manufacturing and the advantages of a complete supply chain gradually created, our shield machine products not only have excellent quality and performance, but also have a lower price and excellent cost performance.
This has also attracted the attention of many foreign companies, and the influence of our shield machine in the international market has also begun to increase rapidly, and even the market share has been increasing, and a lot of shield machines have been shipped, with a market share of about 70%. What people didn't expect was that there was a problem with the shield machine we sold, not the shield machine itself, but the suspicion that India had penetrated the natural defense line of the Sino-Indian border with the help of the shield machine shipped by Chinese enterprises.
This incident has aroused discussion among many netizens, and many people are accusing Chinese companies of shipping shield machines. First of all, this matter should really alert us, after all, although there is no evidence that India has used Chinese shield machines to dig through this natural line of defense, but according to the import of Indian shield machines, there is indeed such a possibility.
Secondly, this also makes us realize that for a large country such as a shield machine, we must restrict shipments to a certain extent. But fortunately, we have already started to do this, and we can prevent similar situations from happening again. At present, we have banned the sale of some large shield machines in Europe and the United States, and have also implemented a technical blockade.
However, this time it has nothing to do with the TBM itself, but more with India. After all, even if we don't ship the shield machine to India, India will buy it from Japanese and German manufacturers if it wants it. The most important thing is that, according to some news revealed by the Indian media and the analysis of industry insiders, it is very likely that the excavation operation in India will start around 2020, and India has previously purchased 8 shield machines used in different scenarios.
There is no doubt that after this incident, we also realize that with the rapid development of China's science and technology, we have achieved breakthroughs in many fields, and the technological level in some fields has reached the world's leading level. In this case, we also need to carry out technical protection and restrict shipments of such important equipment as the shield machine to avoid similar situations from happening again.
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