1, turpentine is rich in content and has good anticorrosion ability. There is an old saying called "A thousand-year-old fir on the water, but pine all the year round under the water". When treating soft soil foundation with wooden stakes, loose wooden stakes are generally used. As an ancient foundation treatment method, pine stake has the advantages of easy material acquisition, simple construction technology and low cost. Treating soft foundation with pine stakes is a foundation treatment method with easy materials, low cost and simple construction. Pine pile is suitable for working in the environment below the groundwater level, and is suitable for shallow soft soil foundation engineering.
2. In the southeast coastal areas of China and some inland rivers and lakes, because there is much water, most of them are soft soil, such as silt, which is generally called soft soil. However, soft soil has low strength and high compressibility, so it can't bear large building load, and the settlement and uneven settlement of building foundation are often large. Therefore, it is necessary to treat it into a suitable soft soil foundation, which can also save the pile driving looseness.