Yang Jie also talked with experts in digital shield machines and assembly machines, such as Tehiko Maozuka.

The technical system of the neon country in the shield machine is mainly derived from the technical patents of John Cow Bartley Try, and the neon enterprises at that time were borrowed from the practices in these patents.

The shield machine integrates light, machinery, electricity, hydraulics, sensing and information technology, and has the functions of excavating and cutting soil, conveying ballast, assembling tunnel lining, surveying and guiding deviation correction, involving geology, civil engineering, machinery, mechanics, hydraulics, electrical, control, surveying and other disciplines and technologies, and it is necessary to carry out "tailor-made" design and manufacturing according to different geology, and the reliability requirements are extremely high.

From 1939 to 2003, Kobe Shipyard manufactured a total of 1,608 shield machines, including earth pressure balance, slurry balance, double circle, triple circle and other types, the number and type of which can be described as the world's first, and the technology ranks first in the world.

Ishikawajima Construction Machinery has a weaker technical strength in this regard, basically only producing shield machines with a diameter of six meters, and is good at the manufacture of weathered rocks, mixed soils, soft soils, earth pressure balance and slurry shield machines, and has not accumulated too much in full-section tunnel boring machine technology.

Since Huaxing Group wants to get rid of the neon domestic industrial chain and technology patents, it must be carefully considered in the technical direction of the next development of products.

Yang Jie has also consulted many domestic experts and academicians these days, and decided that the future research and development of Huaxing Construction Machinery Company will focus on full-section tunnel boring machine products.

In fact, the shield machine and the full-section tunnel boring machine are the same, both are full-section tunneling, but the tunneling, balance and support system between the two are different.

Full-section TBMs are more advanced and complex than shield technology, and are suitable for different projects.

However, with the continuous advancement of technology, many hard rock full-section tunnel boring machines also use shield technology, so the academic community is also very confused about this name.

In addition, this full-section tunnel boring machine can also be used in engineering environments such as soft rock.

Yang Jie also decided to develop two types of full-section tunnel boring machines, hard rock and soft rock, based on Ishikawajima Construction Machinery's shield machine technology.

Hard rock full-section tunnel boring machine is used in mountain tunnels or large-scale water diversion projects, and soft rock full-section tunnel boring machine is used in urban subway, urban underground pipeline and other projects.

Hard rock full-section tunnel boring machine instead of the traditional drilling and blasting method, under the same conditions, its tunneling speed is about four to ten times that of the conventional drilling and blasting method, the fastest time can excavate 150 meters per day, with the advantages of fast, high-quality, safe, economical, conducive to environmental protection and labor protection.

However, the design of this kind of equipment is very complex, requiring a large number of technical experts in various fields to provide technical support, and the research and development cost is very high, and the challenge is very difficult.

Moreover, Yang Jie requires all equipment to be designed, manufactured, tested and warranted by Huaxing Construction Machinery in accordance with the highest standards, which raises this difficulty by a higher level.

Mao Tsuka, Tehiko and the others all looked embarrassed when they heard Yang Jie's request.

"Mr. Gerugzuka, what do you want to say?"

"Mr. Yang, your request is too difficult, there is a very big risk, in case it ......"

"Even if this matter is difficult, we have to carry out research and development, and the head office will do its best to help you with technology research and development in this area, you just have to work with peace of mind, and you can directly ask me if you need anything." ”

Yang Jie said: "My requirements are that the developed equipment should be high-performance, high-reliability and long-service life, easy and convenient maintenance, and minimize the cost of use for customers." ”

Just now, Mr. Xu Guang mentioned that the idea of high-pressure water and high-pressure hydraulic coupling rock breaking technology is a revolutionary innovation in the traditional rock breaking concept, and the technology research and development in this area must be applied to the new equipment as soon as possible. ”

At this time, Yang Jie said to Xu Guang, who previously worked in Ishikawa Island Construction Machinery, who had worked in Ishikawa Construction Machinery for many years after going abroad, and was also the backbone of the shield machine technology department.

"Thank you, Mr. Yang, I will step up research and development in this area in the future. ”

Xu Guang said happily.

"Just now Mr. Mao Tsuka mentioned the development of geological forecasting and advanced water exploration system required by the full-section tunnel boring machine, and I will look for technical experts in this area to conduct research and development, and strive to develop the prototype of these two systems in the experimental stage of the equipment. ”

At present, electromagnetic methods are mostly used to predict the water content of surrounding rock, but the site conditions are limited, and many difficulties will be encountered, such as tunnel face conditions, metal machine interference, and three-dimensional wave field positioning.

In particular, the prediction of the water content of the surrounding rock within 100 meters in front of the tunnel is a new and difficult topic at home and abroad.

When the opinions of domestic academicians and experts were consulted before, one of the experts mentioned this issue.

As a scientist in communication technology, Yang Jie naturally thought of the complex frequency conductivity water exploration technology, in fact, the principle of this technology is based on the principle of electromagnetic wave reflection and coherence, using a specific electromagnetic wave frequency with electric dipole emission and array reception mode for imaging, according to 1/4 coherent wavelength to determine the position of the water body and coherent energy to determine the size of the water content.

In this regard, Huaxing Group itself has the world's top technical team, and the research and development of this system is not an insurmountable difficulty for the company.

The geological advance prediction of the shield tunnel is very important, if it encounters a bad geological body, it is easy to be trapped if the tunneling parameters are not adjusted and changed in time, resulting in accidents such as jamming, attitude loss of control, or even scrapping.

However, the shield machine tunnel is different from the ordinary drilling and blasting tunnel, and there are many precision instruments and meters on the shield machine, which is not suitable for the forecasting method of using zhà yào as the seismic source for exploration, and the shield head part of the shield machine completely covers the tunnel face, which is not suitable for the exploration method that needs to occupy the tunnel face for forecasting.

In fact, in the eighties of the last century, the Geological Forecasting Center of China Railway Southwest Research Institute carried out research on geological acoustic tunnel geological advance prediction technology during the construction of the Dayao Mountain Tunnel and Tianma Mountain Tunnel, and accumulated a large number of technical patents.

Huaxing Group has purchased a lot of technical patents and materials from this research center, among which the tunnel advance prediction technology is the only advanced prediction technology at home and abroad that realizes the identification and separation of underground three-dimensional wave field, and the domestic technology in this area is not backward than foreign countries.

Tunnel advance prediction technology is an advanced prediction technology based on the principle of backscatter imaging, which has higher resolution than the traditional reflected seismic technology. At the same time, the kinematic and dynamic information of seismic waves can be used to accurately determine the location of geological structures, and at the same time, the spatial variation of mechanical properties of surrounding rock can be obtained.

In particular, it pioneered the use of the hard rock full-section tunnel boring machine cutter cutting rock excitation signal as the excitation signal, and developed a set of tunnel surrounding rock classification correction model software, which is very innovative.

Huaxing Group also introduced this set of technology patents and software this time.

In this regard, Neon and other countries have adopted the tunnel geological advanced prediction system to match the electric spark source to predict geological disasters such as fault zones, lithologic contact zones, weak interlayers, karst caves, goafs, collapses, roofing, mud bursts, rockbursts, and gas.

Ishikawashima Construction Machinery basically uses systems designed and developed by Kobe Shipbuilding, a subsidiary of Mitsubishi, in this regard.

Huaxing Group Co., Ltd. will Ishikawa Island Construction Machinery to acquire all the design of all the design to do by itself, naturally many subsystems to use a lot of mature technology patents in China.