Let them watch the bug gradually crawl over, and when it opens its mouth to bite, they want to run away, but the sand is too slippery, and they can only keep sliding towards the center of the whirlpool. At this time, a huge animal emerged from the ground, bit the bug in its mouth, and then crawled back into the sand with its head raised.
It is a long but relatively thick figure.
Dai Zhao said: "It's a Shacheng wild snake."
Qi Yanliang said: "There is also this kind of animal. It is so huge. It is bigger than the largest python I have ever seen."
Dai Zhao said: "They drive towards water sources and are aggressive to a certain extent. They are afraid of irritating sounds and fire sources."
They can burrow in piles of sand. Use the scales to push sand and soil back. From a distance, I saw its huge head sticking out of the sand. It was covered with sand and dirt and had countless scratches.
They are too large to snake easily. So they march in a straight line above the ground, using the scales on their abdomen to push forward, just like many small feet. Snakes that move this way have a triangular pyramid shape with a flat belly that touches the ground.
Qi Yanliang said: "They should usually stay in the desert far away from the city. Why are they here now?"
Dai Zhao said: "Maybe we passed through their territory, or the rumble of our cars when we passed by made them unhappy."
A huge python stuck its head out from the sand and slammed into the car. Fortunately, the car was also relatively large, but on the left side of the collision, the two wheels left the ground and the entire body tilted to the right.
The python continued to hit the parked car with its body. It was about to tip over.
Dai Zhao directed everyone to run to the road quickly. The trucks all turned around and headed towards the highway, and the last truck was almost overturned.
More pythons appeared, on the left and right front of the car construction team.
They emerge from under the sand, like raised hillsides. These mountains still move in a certain direction, like moving sand dunes.
Qi Yanliang said: "What animals or things are snakes afraid of?"
"I know that there are snake eagles that like to be active in forest lands and forest edges. They fly around in high altitudes and make whistle-like calls. They feed on snakes, frogs, lizards, etc. They also eat rats, birds, crabs and other crustaceans. The way the snake eagle catches and eats snakes is very strange. It first stands on a high place, or hovers in the air to peer at the ground. After discovering the snake, it quietly falls from the high place, grabs the snake's body with its claws, and clamps the snake's head with its sharp mouth. , the wings are spread out and supported on the ground to maintain stability. Many larger snakes will not surrender and often roll and twist crazily, trying to wrap around the body or wings of the snake eagle with their still mobile bodies. The snake eagle took its time and continued to hold on to the snake's head and body, fluttering its wings from time to time to get rid of the snake's counterattack. When the snake gradually became weak and lost the ability to fight fiercely, it began to devour."
And monitor lizards. Just some of the ones I just encountered. The body length of monitor lizards is generally 60 to 90 centimeters, and the largest one can reach 2 to 3 meters. The weight is generally 20 to 30 kilograms. The tail length is 70 to 100 centimeters, and the longest one can reach 150 centimeters. It is the largest species of lizards in China and one of the largest lizards in the world. Monitor lizards are aggressive and ferocious. When in danger, they often use their powerful tails as weapons to beat the opponent. It is one of the natural enemies of snakes.
The monitor lizard surrounded the wild snake, baring its teeth. There are also a large number of monitor lizards, and if several of them go together, they can also deal with a big snake. But these wild snakes are huge and it is not easy to win.
There were trucks carrying water and food. But why are there no snakes near the road? Qi Yanliang noticed this. Qi Yanliang ran over and smelled it and said, "What does this smell like? It's like asphalt."
"A coating similar to asphalt. A waterproof layer."
Asphalt pavement is usually used as the surface layer of pavement. It is directly affected by vehicle load and atmospheric factors. At the same time, the physical and mechanical properties of asphalt mixture are greatly affected by climate factors and time factors. Therefore, in order to make the pavement suitable for vehicles To provide stable and durable service, asphalt pavement has the following important characteristics:
1. High temperature stability. High temperature stability refers to the ability of asphalt pavement to resist flow deformation. Since the strength and stiffness of asphalt pavement decrease significantly as the temperature increases, in order to better ensure that the asphalt pavement will not cause diseases such as waves, shifting, rutting, and congestion under repeated driving loads in high-temperature seasons, the asphalt pavement should have good high temperature stability.
2. Low temperature crack resistance. Low temperature crack resistance refers to the ability of asphalt pavement to resist low temperature shrinkage cracks. As the temperature of asphalt pavement decreases, its stiffness increases and its expansion capacity decreases. Under the action of external loads, some stresses have no time to relax, and the stresses gradually accumulate. When these accumulated stresses exceed the tensile strength of the material, cracking will occur, which will cause damage to the pavement. Therefore, asphalt pavement should have lower stiffness at low temperatures. and greater resistance to deformation to meet low-temperature crack resistance.
3. Water stability. Water stability refers to the ability of asphalt pavement to resist water erosion and gradually cause the asphalt film to peel off, lose grain, become loose, and become damaged due to pits. This is because the presence of water not only reduces the cohesion of the asphalt itself, but also destroys the cohesion between the asphalt and the mineral materials in the asphalt pavement, thereby accelerating the occurrence of peeling and causing water damage to the road. Therefore, asphalt pavement must have water stability to ensure the durability of the pavement.
4. Fatigue resistance. Fatigue resistance refers to the ability of asphalt pavement to resist damage under repeated loads. It is because the asphalt pavement is subjected to repeated wheel loads during use and is in a state of overlapping stress and strain changes for a long time, resulting in a gradual decline in the structural strength of the pavement. When the load is repeated for more than a certain number of times, the stress generated in the pavement under the load will exceed the structural resistance after the strength is reduced, causing cracks in the pavement and fatigue fracture damage. Therefore, asphalt pavement should be fatigue-resistant.
It turned out that snakes were afraid of the smell of asphalt, so Qi Yanliang asked the construction truck to dig out some asphalt materials and apply some to other cars. As expected, these wild snakes took a long detour, formed a team of vehicles, and continued moving forward.
Gun and their cars were traveling on another road, and two of them were also knocked over by a big snake. They were also short of fuel. Found a gas station nearby.
Shu said: "I saw Dai Zhao and the others from a distance. They are also nearby. There is probably no fuel. We should occupy the gas station first."
"It's a good idea, there's no way they can continue without fuel," Kei said.
