In the following month, the more than 1,000 captives and naturalized people who had been "thieves" began to build a bridge across the river under the command of some senators sent by the Senate Design Bureau, a wooden bridge with a span of 52.5 meters and a width of 8 meters, because there was no hydrological condition of the river, whose name was not even known, and the maximum level of the flood could only be estimated according to the standard of once in a century. During this winter dry season, the bridge is still up to ** meters above the water surface. Originally, according to the design, the design institute's suggestion was to build a pontoon bridge, but the pontoon bridge should not only pay attention to the uneven weight of the train will cause the connection to break, but also the connection of the iron parts is too close to the water surface, which will directly lead to rapid rust and damage, at this time, the design institute can only go back to the original design - wooden bridge.

Cement has always been an important bottleneck for the construction of the traversers, but they quickly found a solution from the Great Library, and the alternative cement in the scheme is also called "artificial pozzolanic cement", which has also been burned in some villages in the past, using fired bricks and pottery to crush and then grind fine, or directly through lime and clay in the kiln calcining. The production process of this cement is very simple, the temperature can reach 600 to 800 degrees Celsius, which is much lower than the 1450 degrees Celsius used to burn Portland cement, and the performance is similar to the legendary "pozzolana cement". Yunnan's Yunnan-Vietnam Railway is the use of this kind of cement, during the Anti-Japanese War, this kind of cement was also widely used in the construction of the southwest rear. As soon as they heard that these things could be used to make cement, the brick factory immediately took out a lot of captives to break these waste bricks, and after crushing them, they were moved to the grinder for grinding, and after ten minutes of running, five kilograms of powder were grinded, and then the experimenters took these powders and mixed them with lime and water, and then tried to repair the wall of the brick factory that had been broken and not repaired. After drying, the construction team checked the quality of the walls and the "cement". The construction team inspected the materials and walls very carefully, and basically met the requirements of cement, although it cannot be compared with Portland cement, but it is feasible as a binder for building materials and even for making concrete with little strength requirements.

Soon the Planning Commission sent an approval to allow the construction of two piers in the river using cement brought from the old time and space. After the piers were built, the wooden structure on them was easier, because Xiao Jing's timber processing plant was doing better and better drying, and the timber sent was basically up to standard. The "Bridge over the River Kwai" was completed in less than a month. After the track was laid, several wooden wagons made of materials from this time and space were specially loaded with nearly 20 tons of earth, sand and gravel, and the static and dynamic load tests were carried out on the bridge, and finally the construction team accepted and opened to traffic. But the problem is that there are no trains at this time...... The trains of the old time and space were either electric locomotives or diesel locomotives, neither of which were suitable for use in the plane, so they had to use steam engines made by themselves. Because there was already a collection of relevant materials before the crossing, Zhang Yuan's industrial group had a lot of steam engine drawings, and Zhang Yuan at this time was really standing on the shoulders of his predecessors, and he didn't know how many detours he took. The development of the steam engine began when the wooden track was laid, but the steam engine, which created the miracle of the industrial age, became Zhang Yuan's nightmare at this time. Originally, he thought that this steam engine would simply make components according to the drawings, then assemble them according to the drawings, and then burn the boiler to vent the steam, but with the leakage of three successive boilers, one of which exploded violently yesterday, injuring two veterans and a naturalized migrant worker on the spot, the executive committee ordered them to stop the research and development work, first check where the problem is, and then move on to the next step.

Du Yande was now on his way from the camp to the design workshop of the Ministry of Industry, a kilometer to the north, and on the left side of the road was the prisoner of war camp, which was no longer what it used to be, and the barbed wire fence around it was still there, but it was empty. The prisoners were given building materials and built their own wooden houses in the new camp. The house was built by design drawings provided by Carter, an American architectural engineer who did not show large materials, was easy to process, and was fast in mass production. There are very few steps to build these materials, basically a dormitory of 20 people can be built in only three hours, and it can theoretically resist winds below level 8. As for earthquake resistance, because it was originally a bungalow and a wooden structure, it was not particularly affected. The beds were double beds, wooden bowls, spoons, cups, and even toothbrushes distributed by the prisoners of war, using bristles. Although the captives and naturalized people did not know why they were asked to brush their teeth every day, they were forced by the "coercion" of these Americans to comply. With the strict and perverted hygiene requirements of the traversals, these people have given up their penchant for free urination and now know to go to the toilet; I have to take a bath every day, and there are no more fleas and bed bugs on my body; They've been getting stronger and stronger lately since they took the deworming medicine and made them horrify how many bugs they had in their stomachs the next day. To their surprise, although these Americans served unlimited amounts of white rice and seafood, their own rice consumption had dropped, and at the same time, they not only did not go hungry because they did not have enough to eat, but because they consumed more protein and fat, they were more powerful and less likely to get tired.

Next to the prisoner of war camp is Sun Wenbin's new farm, which occupies a considerable area, although it is raw land, but it is all newly excavated land from the primeval jungle. Looking at the black soil, Sun Wenbin was inexplicably excited, this is black soil, raised by the humus of thousands of years of jungle deciduous leaves! At this time, a large number of potatoes were already planted in the fields. At this time, the temperature has dropped to about 15 degrees Celsius, which is a good time for potatoes to grow, and the ground is full of potato leaves, a dense green patch. Sun Wenbin now boasts that his farm will be a bumper harvest in a few months, thinking of this, Du Yande couldn't help grinning, this is black soil, and the light conditions are suitable, as well as the legendary chemical fertilizer, if there is no harvest, there will be ghosts.

Next to the farm is the new village of Guihua Min, these houses made of brick and earth cement have not been renovated on the outside, all of them are brick outlines, and the top is laid with cement tiles made of earth and cement. This kind of Soviet-style living block house is strongly recognized by the naturalized people, who have never lived in such a good house, and the house is so strong that even if a typhoon comes, it will not cause damage to the house. These houses are up to three floors, with eight rooms on each floor, and theoretically each can provide 24 households to live in, with shared toilets and washrooms, because there is no design scheme for sewage sewers at this time, and the toilets are still dug and can also provide biogas for the upstairs residents to light the lamps - in order to save the wires and appliances brought, and also to prevent the overly curious naturalized people from trying the taste of being struck by lightning, the naturalized people's new villages all use biogas lamps, although it will increase the chance of fire, The only way to reduce losses and casualties can only be reduced by relying on the internal security team of the Senate to give regular lectures to naturalized people about fire precautions and fire escape precautions. However, from a distance, the window frames of these rooms are not glass, but all of them are covered with window paper. These window paper are the product of this time and space, and the newly commissioned Tufa paper mill is making the sound of a stirring pool in the distance, using rotten cloth and waste cotton and straw collected from the port of Champa, although the product is only coarse paper for daily use, but it has finally solved the problem of shrinking hand paper reserves through the crowd. If you want to produce paper for writing, you can't do it until the chemical plant is put into operation and the acid and alkali products can be mass-produced.

It's been three months since they crossed the plane-time gate, and in those three months, they've not only defeated An Yun's expulsion, but they've also laid a wooden track to the north and a wooden bridge across the unknown river with the help of captives and naturalized people. All of this was achieved by the people who traveled through it on their own, and these pioneers of the new world, in the old time and space, were ordinary people who could no longer be ordinary.

Looking at these construction achievements, Du Yande was so happy that he couldn't help but want to sing two sentences, but before he could start singing, he heard a shout not far away: "Stop!" Who? ”

He was stunned, although this Mandarin is a bit hard, it is still Mandarin rather than Mandarin, but this person who doesn't know him in the crowd? Hurriedly fixed his eyes, but it was a native, the native, holding a spear in his hand, the head of the spear was facing him, maintaining an offensive posture. Seeing that Du Yande didn't answer, he shouted again: "What person?" A member of the military team ran out of the woods on the side of the road not far away, and shouted as he ran: "Zhao Liu! Don't! That's the Executive Committee! ”

It wasn't until the members of the military team came to defend themselves that Du Yande learned that this native was a pirate before, a native of Liaoxi in Liao Province, who fled all the way south after being captured by the Yagil people, and became a pirate because of his livelihood, and then followed the owner all the way south and finally defected to Zhong Bin. In the later prisoner of war reform operation, he became an active rehabilitator, and at this time he had become a naturalized citizen. At that time, when the village Yong attacked, he also led the team to cooperate with the military group and the militia to clean up the battlefield and escort prisoners.

Zhao Liu is an honest man, and the members of the military team who were on the same post as him before wanted to go to the toilet and left the post, and he was standing guard alone. Suddenly, he noticed a person coming along the road, and he remembered the order "no unrelated personnel are allowed to pass", and he hurriedly followed the rules and regulations. I heard that the person I was pointing at with the spear just now was actually the executive committee, and in the previous training, the instructor told him what the executive committee was, and the executive committee was the big boss of the ship in the pirates, and the executive committee was the big cabinet in the bandits, and it was such a character that he threatened with the spear just now. Thinking of this, he couldn't help but fall to his knees with a soft puff under his legs, kowtowed again and again, and said: "I don't know Taishan with eyes below, and I actually threaten the executive committee members, and please forgive the villain for having no eyes and beads, and spare the villain's life!" ”