With the extensive improvement of infrastructure in China in the past ten years, the soft soil foundation is becoming more and more complicated. Therefore, the improvement of soft soil foundation treatment has become a difficult problem that today’s engineering designers have to face. This paper systematically reviews the development of soft soil foundation treatment technology in our country, and emphatically introduces the development process of foundation treatment at home and abroad, especially in our country in recent years, which embodies the cross and comprehensive application of various foundation treatment technologies and forms a unique composite reinforcement technology.

In addition to landscape and ecology protection, nature reserve has a certain impact on the work and life of local residents, and possible their mental health. This paper aims to identify the factors influencing the mental health of residents in nature reserves. First, the mental health of residents in a nature reserve and its influencing factors were analysed descriptively through a questionnaire survey, using the Kessler Psychological Distress Scale (K10). Then, seven indices, e.g. family status, life pressure and social support, were selected to establish a multi-ordered Logit regression model. The results show that gender, age, occupation and family income are closely related to the mental health of residents in the nature reserve; the years of education, family economic situation, physical health, life pressure and social support have a significant impact on the mental health of the local residents. The research results provide an important guide for improving the mental health of residents in nature reserves.