Zhang Tao moved all the cement to the warehouse to prevent it from raining, so the cement did not have to be moved. Pen, fun, pavilion www. biquge。 info returned to the bedroom, remotely controlled the drone in the underground space, tied the drill with a rope and flew back to the ground, and then flew to the forest farm villa, Zhang Tao came to the yard to untie the drill.

Remotely control the drone and then return to the underground space of the oil field, tie the robot and fly to the ground, and direct the vigilant drone to block the stone at the entrance of the cave, so that the two drones can return to the forest farm villa together.

The position of the hole below dug by Zhang Tao corresponds to the position in the warehouse to prevent it from being seen by satellites in the sky, and the corresponding position is measured by the signal amplifier, and the tunnel is straight.

Remotely controlled the pangolin driller and the robot to the warehouse, let the driller turn on the oscillation frequency of soil and stone against the ground, and the power of the signal amplifier was also turned on to a 1.6-meter-wide level, making the ground to be dug soft and soft.

Then the remote control robot digs out the soil from the ground and transports it to the back garden, and spreads the soil in the open space in the back garden. Zhang Tao designed to dig six 80-degree slopes so that the robot and the pangolin drill could come up.

According to the trigonometric theorem, the sum of the inner angles of the triangle is 180 degrees, and the slope is 80 degrees, so the angle on the ground is 10 degrees, COS10 is equal to 0.98, and 100 meters divided by 0.98 is equal to 102 meters.

After digging for two hours, Zhang Tao turned on the robot's infrared scanning function and measured that the length of the hole was 102 meters, and the surface water was constantly seeping into the hole.

The water vapor in the cave filled the warehouse, and the next step was to build cement and sand on the cave wall. I went to another warehouse and got a bag of cement, opened the bag with scissors, and then remotely controlled the robot to grab the cement and walk to the hole.

After walking to the cave, the cement in the bag was sprinkled on the wall and the bottom of the cave, and the water vapor in the hole was very large, and the cement ash stuck as soon as it touched the cave wall. After scattering about 5 meters of cement, the cement is gone, and then the remote control robot returns to the ground, grabs the sand and an iron rod and goes down, sprinkles sand on the place where the cement has been sprinkled, and then presses the wall with the iron rod.

After the sand and cement were sprinkled, Zhang Tao remotely controlled the pangolin drill to the cave and turned on the ultrasound from time to time 5 meters above the hole to make the cement and sand dry faster.

After a few minutes, the cement and sand in the hole were dry. Zhang Tao looked at his watch, and it took a total of ten minutes from the cement to the dry, and continued to lay cement and sand on the cave wall with the method just now.

After another two hours, the cement and sand on the 102-meter wall of the cave were dry, and it was ten o'clock in the evening after looking at his watch.

After washing up, he went back to bed and went to bed, and Zhang Tao got up at four o'clock the next morning, first moved his muscles and bones in the yard, and made a pot of noodles for breakfast.

After eating, I looked at the watch and the time was 4:25, Zhang Tao washed the robot and the pangolin-type driller with a rag and wiped it, and then filled the two machines with diesel, and went down to the hole by remote control.

After reaching the bottom of the cave, the pangolin-type drill was remotely controlled to the bottom of the cave to send out the oscillation frequency of the stone to break the cement, and then the spring coil was ejected to heat the ground, and a lot of water vapor came out of the bottom of the cave instantly.

Then the spring coil was retracted, the oscillation frequency of the stone and soil was turned on to shake and loosen the soil layer under the bottom of the cave, and the robot used a shovel to dig up the soil and transport it to the ground, and at ten o'clock it drilled three 102-meter slopes, and at the corners of the four slopes drilled a hole parallel to the ground to put things.

The further down you go, the longer it takes for the robot to transport the soil, and the use of explosives under the villa will alarm the neighbors, and there is no mining in the forest farm, so you can only slowly transport the soil to the ground.

When the robot returns to the ground, the pangolin drill also walks to the ground, turning on the ultrasonic waves of the coil to evaporate the water in the hole as it climbs.

Zhang Tao remotely controlled the robot and the pangolin-type drill back to the ground, fetched a basin of water for the machine to wipe it, and then used a small screwdriver to cut out the soil in the water chestnut of the machine, and then filled the fuel tanks of the two machines with diesel.

Cement and sand are also a little insufficient, I have to let the boss who sells sand and cement bring another truckload, yesterday I thought it was enough, but in fact I found that it was not enough.

Zhang Tao remotely controlled the robot and the pangolin-type drill to the warehouse, then closed the door, and made a call to the owner of the sand seller in the township to ask him to send a few more trucks of cement and sand.

Taking advantage of this time, Zhang Tao returned to the kitchen to make lunch, poured water into the rice cooker, plugged in the power supply and boiled the water, then washed the rice and put it in, and then put some vegetables and salt and oil in the back garden, as well as two eggs and two goose eggs, and now Zhang Tao has to eat four eggs at a time, or he will be hungry in a while.

After pressing the button to cook porridge, Zhang Tao came to the yard and waited for the cement and sand to be delivered, after ten minutes, the boss drove a tricycle to the villa, the boss unloaded the sand and cement into the yard, and Zhang Tao chatted a few words, this time the price was cheaper for Zhang Tao.

An hour later, the sand and cement were all transported, and Zhang Tao took advantage of this time to eat lunch, and when the tricycle left, Zhang Tao locked the gate. Back in the warehouse, I sat on a chair and remotely controlled the pangolin-type drill, which emitted ultrasonic waves against the walls of the unbuilt cement cave when it entered the hole. Then the remote control robot to the holes at several corners are filled with sand and cement, and then the remote control robot goes down to the lowest slope to build the cement cave wall.

After two hours, the walls of the four sloped caves dug in the morning were built with cement and sand, and Zhang Tao was ready to take a nap. I looked at my watch and it was more than one o'clock in the afternoon, and now it's not too late to sleep, and there are only two slopes left, so there is no need to worry. After washing your face and hands, go back to the bedroom and set the alarm clock for half an hour to prevent yourself from oversleeping.