Engineer's Soul Travels Through the Three Kingdoms

I traveled to the Three Kingdoms and became the wasted general Xia Houmao. I used my knowledge of geology to cause a landslide in the Battle of Jigu and defeated Zhao Yun, but was demoted to a commoner by the emperor. My wife asked me how I could make a comeback, and I said, "First, let my brother buy me 500 moso bamboos, and then ask my son to buy 2.4 Million kilograms of charcoal, and then I will go to Qingzhou to dig a load of diatomaceous earth." My wife was confused, but I used these three magic weapons combined with my professional knowledge to achieve a counterattack, defeated Zhuge Liang in Qingniling, and eliminated the main force of the Shu Kingdom. After the war, I was imprisoned by the emperor. I used marriage to save myself and followed the general Cao Zhen in the expedition against Shu. I used the 500 kilograms of fat pork bought by my brother and the 400 kilograms of stone gallbladder I bought from the alchemist to make secret weapons, and assisted Cao Zhen in completing the great cause of destroying Shu.