Chapter 800: Plan started

On the frozen lake in the Dongting Lake area, a group of engineers were

drilling holes in the ice layer and buried the prepared explosives after

drilling to a certain depth.

They are not trying to blow up the ice, but intend to use the shock waves

generated by the explosion to conduct geological exploration of the

underground and determine the location and trend of underground caves.

This is to prepare for the tunneling attack plan developed by Chen Xin.

Although Chen Xin designed this plan, he made preparations for how to defend

against the destruction of shield machines and tunnels by alien creatures in

underground caves, but if possible, both the military and Chen Xin hope to

find out An excavation route that can circumvent those existing underground

caves.

This way, on the one hand, it can save a lot of trouble. After all, if you can

dig directly down to the nest of alien creatures without interference, and

then attack directly, it is really very worry-free and labor-saving.

For the military, this is undoubtedly the most ideal state.

On the other hand, it is to minimize the difficulty of construction in the

tunneling process.

The length of the shield machine Chen Xin prepared for this excavation task is

at least 70 meters, and the diameter is more than ten meters. Cause great

damage.

Therefore, planning a reasonable excavation route has become an important

prerequisite for the implementation of the entire plan.

When these engineers were buried with explosives, in the original urban area,

another group of engineers was cooperating with the engineers in the intense

construction.

Their task is to dig a large foundation hole here for the shield machine.

Although the digging offensive does not require digging down and then hoisting

the shield machine down like the subway construction, it is still necessary to

dig a hole in advance to clear the starting position to facilitate the

digging.

After all, the entire shield machine is tens of meters long and its weight is

amazing. The excavation is digging downwards at a certain angle. It is

impossible to make the tail of the entire shield machine up to the sky.

On the construction site, Chen Xin is inspecting the progress of the

construction.

"The construction period is very tight, are you confident to complete the

task?" Chen Xin asked the person in charge of construction on the side.

Because both the high-level and the military hope to solve the problems in the

Dongting Lake area as soon as possible, they are very deadly to the schedule

card.

"Please rest assured, we have divided the workers into three shifts, and we

will not stop the machines 24 hours a day, and ensure that the construction of

the foundation tunnel is completed within the specified time!" The person in

charge seemed very confident with his rhetoric.

In fact, the person in charge is really confident in completing the

construction. On the one hand, he has sufficient manpower. The military even

provided some engineers to assist in the construction.

On the other hand, the construction itself is not a particularly complicated

and large-scale construction, it is just digging a deep pit to complete the

foundation tunnel of the shield frame.

Although the construction requirements are very strict and the construction

period is very tight, it is still within a range that can be completed, but it

needs to be constructed very efficiently, and there is no time to make

mistakes and waste.

However, this is not too demanding. As long as there are no mistakes in the

construction, the smooth completion of this task can basically be guaranteed.

Chen Xin nodded in satisfaction. Since the person in charge showed such

confidence, he naturally wouldn't say much.

While construction is underway, a huge shield machine is being assembled on

the side of the site.

This is the shield machine that Chen Xin obtained after the system upgrade

with a finished shield machine ordered from the factory.

He had spent almost a week trying repeatedly before finally obtaining this

machine that can dig up to 50 meters in a day.

This machine Chen Xin borrowed some concepts and ideas from science fiction

movies that had been seen a long time ago, and made further improvements to

the cutter head of the original shield machine.

In addition to improving the material and structural efficiency of the cutter

head, Chen Xin also installed a directional acoustic wave transmitter on the

cutter head.

This is somewhat similar to a sonic cannon. The transmitter emits ultra-high-

frequency sound waves in the direction of tunneling to achieve the effect of

loosening the soil and breaking the rocks and improving the efficiency of

tunneling.

In fact, fifty meters a day is not the limit of this machine. According to

Chen Xin’s design and simulation results, if this machine is digging at

maximum power, it can dig more than one hundred meters a day at most, but in

that case, follow-up The tunnel construction cannot keep up.

Therefore, after careful calculation and evaluation, Chen Xin controlled the

tunneling speed at the most suitable speed of 50 meters a day.

This will not only ensure the construction of each section of tunneling, but

also ensure the speed of tunneling without delaying too much time.

According to Chen Xin's estimation, the entire tunneling project needs to be

digging down for a distance of about 4,000 to 5,000 meters. Because it is an

oblique tunnel, the distance is several times the vertical depth.

The time he prepared for the entire plan was about nine months, and the

construction period was about three to four months. The remaining time set

aside was for the military's combat time.

The military has no objection to this. According to their estimates, if they

can smoothly remove the maternal bodies of alien creatures used to produce

combat daughters in the first wave of offensive, and cut off their manpower

supply, the military is confident in three months. End the battle within.

Chen Xin was not optimistic about this. He was always worried that there are

higher-level units of aliens, and it is uncertain what the underground aliens

are hiding more than a thousand meters deep.

The military’s estimate of the end of the battle in three months, UU reading

www. uukanshu. Com is only the result of estimation based on the existing

situation.

According to Chen Xin's calculation, even if the offensive goes smoothly, it

may take four to five months for the military to end the entire suppression

campaign.

If there are any accidents, the entire battle will last longer.

Chen Xin has also expressed his concerns to the military, and the military has

also made plans and adjustments for this, but they do not intend to modify the

original timetable, and still intend to complete all the clearances within

three months. Combat.

This inevitably makes Chen Xin feel a little worried whether the military is

too confident.

However, the military's combat plan is very rigorous, and every aspect has

left enough margin for emergencies. It has prepared a backup plan. It really

doesn't look like an excess of self-confidence.

Faced with this situation, Chen Xin had no choice but to let go of his worries

and focus all his energy on the implementation of this plan.

After all, it is necessary to dig to a depth of more than a thousand meters in

the ground within three months, and to launch large-scale operations. There

are many things that need to be considered and prepared. As the proposer of

the plan, Chen Xin still has a lot of things to do. Do.