Zhao Ran looked at the huge sand table and couldn't help but praise: "Master Sun is really rigorous and has sufficient preliminary preparations."
Sun Biyun twirled his long beard proudly: "How could such a huge project be accomplished without preparation? After receiving the idea of the Zhiran Flying Talisman at the beginning of the year, I asked Sihai and Jiufang to take turns to survey the landforms, and I also flew a multiplier from above.
After many attempts, I finally got this sandbox."
Zhao Ran said: "Master Sun and seniors Sihai and Jiufang have been to Yingtian many times? I didn't know that they failed to receive them well and should be beaten!"
Sun Biyun smiled and said: "Didn't this never start? I asked them not to look for you on purpose, so as not to delay you from doing other things."
Zhao Ran said: "This junior is almost ready in Yingtian, and the place on the river bank has been cleared, so we can start. Master Sun, let's confirm a few important links today."
Sun Biyun nodded and told the old man on the left: "Sihai, tell your uncle Zhiran about the location."
The old Taoist on his right responded: "Yes, Master."
He picked up the bamboo stick, pointed at the sand table and said: "The span of the bridge is very large, and the requirements for the bridge foundation are very high. Jiufang and I have entered the water to explore many times. Except for the section from Longjiang Pass to Pukou City proposed by Uncle Zhao, the upper reaches of Qingliangshan Mountain North
The sandbank and Yanziji in the lower reaches are also suitable for building bridges because the foundation is solid and not easy to sink."
Zhao Ran looked at the sandbank and Yanziji pointed by Fu Sihai and began to think.
Fu Sihai continued: "The advantage of building a bridge on a sandbank is that it can be divided into sections, with the sandbank as the main pier base in the middle. There is no need for full-scale underwater operations, and it is easy to adjust if there are problems during the construction. The disadvantage is that the river surface is wider, one width wider than Longjiang Pass.
One hundred and eighteen feet, and the sandbar needs to be reinforced, which requires much more work."
"At the Longjiang Pass in the middle section, the river surface is 480 feet, and the foundation is also solid enough. This was also the first site that Uncle Zhao proposed for building a bridge. It is indeed a more suitable place."
"The river at Yanziji downstream is narrower, 420 feet, and the work hours are less. The disadvantage is that the water flow is faster, and it is more difficult to erect the piers. But as long as the piers are erected, the cost will be much less."
Zhao Ran shook his head and said: "Building a bridge at Yanziji is faster and more economical, but there is also the biggest problem. It is nearly four miles away from the city. If you want to cross the river, you must leave the city and go down four miles along the river to meet the upstream sandbank.
Compared with Longjiang Pass, it is not very convenient."
Sun Biyun thought for a while and said: "Well, what Zhiran said makes sense. For monks, four miles is nothing, but for ordinary people, it is a bit inconvenient. Zhiran thought that leaving the remaining two places
Which one is better, Shazhou or Longjiang Pass?"
Zhao Ran stared at the two locations and kept weighing them. He wanted to choose Shazhou several times, but in the end he said: "Longjiang Pass."
If you choose Shazhou, Wang Zongyi and Liang Yougao, as well as countless officials and dignitaries will come to fight for their lives. This is the second thing. The key is that since the "former" bridge appears in that place, it must have a reason to appear there.
.
This is the first time Zhao Ran has undertaken such a large and high-tech project, and he doesn't want to cause unnecessary complications.
Sun Biyun agreed. The three locations selected by their master and apprentice all met the foundation requirements for building a bridge. As for which one to choose, of course, it is decided by the proposer and funder of the bridge.
Now that the bridge site has been determined, the immediate question is: How high should the bridge be built?
According to Sun Biyun's master and apprentice's measurement of the height of the river bank, the bridge should be eight feet higher than the river surface, so that it can ensure the passage of the 800-ton ship. And the 800-leaf ship is almost the largest ship passing through the upper reaches of Yingtian.
Material means wood. A piece of wood used in shipbuilding is usually two feet long. When placed in the water, it can carry three hundred kilograms of cargo. How many such pieces of wood are used is how many ships are used.
The 800-material ship uses 800 pieces of wood. Its main mast is nearly six feet high. Adding the height of the ship's hull, the bridge must be eight feet higher to pass.
As for Qianliu and above, they are all sea-going ships and do not travel on the river. At most, they can only go downstream from Yingtian to the mouth of the river, so the bridge height set by Sun Biyun is eight feet.
Zhao Ran originally wanted to make a thousand-year plan to ensure that a ship with two thousand materials could be navigable. However, according to the construction method of Fuzhou, the height of the ship's mast is generally 49/50 of the captain, which is almost the same as the captain. This means that,
The bridge must be more than twenty feet above the water, which is equivalent to the height of three Yingtian city walls. Such a project is too exaggerated and cannot be afforded.
After several struggles, Zhao Ran gave up his idea. Eight hundred materials would be eight hundred materials. In the future, he could make a fuss about the ship's mast and try to lower the mainmast's passage height.
Determining the height means determining the shape of the bridge pier - wide at the bottom and narrow at the top, three feet at the bottom, about ten feet round at the top, and twenty feet high!
Among them, the big pier is eight feet above the water, three feet in the water, and nine feet in the deep well underwater. This is a whole bridge pier. A ninety-foot deep well must be dug at the bottom of the river, and nearly half of the bridge pier must be buried in the deep well, so that it can stand
Stand firm and stand firm.
Such a majestic bridge pier must be able to withstand the impact of the river water for many years, and must be able to withstand the huge weight of the bridge deck above. This is the most difficult part of building the Yingtianfu Bridge. The great craftsmen of the Ministry of Industry of the Imperial Court have no solution at all. Not only
The bridge pier itself is difficult to build, and it cannot stand in the water even if it is built, so we can only rely on fairy methods.
There are few people in the Taoist sect who have such ambitious ideas as Zhao Ran, and no one has the determination and financial resources to accomplish such a feat, so to this day, no one has ever undertaken such a large project.
Fortunately, Wudang has the Nanyan Palace of the Great Sage and Sun Biyun's master and disciple, so that Zhao Ran's idea can be realized.
Sun Biyun said: "I, Sihai, and Jiufang are refining the bridge pier instruments at the same time. We can get three bridge piers in one month. Fifteen main bridge piers can be completed in five months."
Zhao Ran expressed satisfaction. This efficiency was too high and he could not ask for more. There are fifteen bridge piers and a navigation bridge hole of thirty-five feet. This is the design of the main bridge on the river.
"Thirty-eight approach piers are still needed, ranging from one foot high to nineteen feet high, and they must be built first." Zhao Ran reminded.
"The approach piers are not complicated, and there are no requirements to withstand the impact of water flow or corrosion. They are easy to refine and can be completed in five or six months. The only problem is that there are not enough refining materials."
Fifty-three huge bridge piers are no less than the refining of fifty-three majestic palaces. The number of spiritual materials and minerals required is an unbearable number. Fu Jiufang handed over the list. Zhao Ran looked at it and immediately felt a little confused.
My eyes are darkened.
Ten thousand jins of fine gold, 60,000 jins of mithril, 300,000 jins of Ziyun copper, 8.3 million jins of fine iron...
Thirty thousand catties of Guiyuan earth, seven thousand catties of mica stone, eighteen thousand catties of gold sand, one hundred thousand catties of rune stone...
Zhao Ran held the list in his hands, his face uglier than crying: "Master Sun, there is definitely no way to get this."