What are the characteristics of Juxian House? What should we pay attention to when building?

Bogey: Soft clay and loose soil with moisture (1) are not suitable for foundation. If it is clay, because of its compact structure and poor water permeability, it is not conducive to the growth and reproduction of aerobic bacteria and the self-purification of soil. In addition, the house is easy to be wet, and the ground is easy to accumulate water, which breeds mosquitoes, flies and poisonous bacteria. If it is loose soil, it is also inappropriate. On the one hand, it is difficult to bear the gravity of the house and cause the house to sink; Secondly, domestic sewage is easy to pollute underground water sources and spread diseases. (2) If the water level is too high, the foundation will be wet. If the groundwater level is too high, it is not only damp in the house, but also in danger of collapse, which is also appropriate to cause groundwater pollution. Living in this house for a long time will induce various rheumatic diseases. If the building is built in a place with high water level due to the limitation of lots, it is necessary to raise the foundation fill and remedy it. (3) Soil and water induced diseases. Soil acts on human body through its water content or through food chains such as plants and animals. If the soil contains too few or too many essential elements for human body, it will cause regional diseases. If iodine is deficient, it will cause regional thyroid diseases; If calcium deficiency, it will cause regional rickets and osteoporosis; Selenium deficiency will cause regional Keshan disease, induce liver cancer and so on. Therefore, no regional soil should be selected for residential site selection. In case you need to build a house in a place with soil problems, try to use building materials such as cement, steel bars and bricks. (4) Hidden dangers of underground pollution emerge one after another. Underground sewage is neither easy to find nor easy to remove, which not only makes houses wet but also pollutes the air, seriously affecting the health of residents. The house also avoids the deposition and flow of sewage on the ground, and it is prone to urinary system diseases if it lives for a long time. (5) The atmosphere in the fire place is difficult to exist. Earth-qi carries all kinds of elements and nutrients contained in the soil, silently giving human body material and energy. If there is a fire in the house on this land, it is not suitable for foundation use. If it is necessary to build a house on this land because of land shortage, the topsoil can be dug to 0.5~ 1 m, and fresh soil can be added to turn the dead soil into living soil. In addition, in places where fires occur, special attention should be paid to taking appropriate fire control measures. (6) Ionizing radiation can cause strange diseases. If there is uranium ore or other ore coexisting with uranium, or radioactive isotope source leaks, it will continuously emit various harmful rays, which will cause cancer to human body. At present, it is known that ionizing radiation can induce hematological diseases, recurrent myeloma, osteosarcoma, skin cancer, breast cancer, colon cancer, liver cancer and other diseases, and it is not advisable to have "monazite" underground. (7) Loose soil is not conducive to earthquake prevention. Soft, sandy or too dry places are not suitable for building. Geology includes two concepts: site and soil quality. When building a house, it is best to remove the soft topsoil first, and then build a house directly on a solid site. However, if the thickness of the topsoil exceeds the limit of total removal, the pile must be driven deep into the foundation to ensure the safety of the building. If the land composed of sand or clay alone is not ideal land, it is best to use both to make up for each other's shortcomings. & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。 & lt/SPAN>。