What are the kiln site selection, soil requirements, kiln style and cave layout?

"What are the kiln site selection, soil requirements, kiln style and cave layout?" ① kiln site selection: it is preferable to choose the southwest facing, relatively high terrain, no burials in the vicinity, no seepage water, not flash floods through, closer to the water point (except for running water). ② soil requirements: it is appropriate to choose the native clay soil. ...... If it is semi-native, non-native, sandy, with the slope shale, in addition to building the kiln must be done in addition to the support, to be in the kiln wall, door arch, kiln, according to the stability of the condition of the need to do a permanent strengthening of the support (A reinforced concrete, B concrete, C brick masonry), will increase the investment. ③ kiln style: are outside the high inside the low arch roof plus arch support for the construction of the kiln features, a hole a functional large room (can be done 2 or 3 separated), each hole open door or window, hole to the horizontal arch channel connected to the function of the kiln and the channel between the board or brick with windows and doors of the partition (up and down the air window), the kiln between the interval between the "walls" No less than the payload thickness (according to the kiln roof load decision). ④Dong layout: the kiln in the middle of the location of the door for the living room, the living room in front of the side of the archway to the left and right side of the functional kiln (bedroom, study, kitchen, bathroom).