以某实际工程作为主要论述对象,在确保原有结构不发生改变的状况下,相关单位应当使用锚杆桩托换法把房屋进行托住,并且在房屋下方做好开挖土方的作业,促使地下室可以达到增加一层的效果。相关单位在对土方进行开挖的过程中,使用垂直锚杆以及土钉挂网喷混凝土面层的形式开展围护工作。 Taking a practical project as the main object of discussion, under the condition of ensuring that the original structure is not changed, the relevant units shall support the house with the method of bolting and piling up the piles, and do excavation and earthwork under the houses to promote Basement can achieve the effect of adding a layer. Relevant units in the excavation of earthwork in the process, the use of vertical bolts and soil nailing net concrete surface to carry out the form of cover work.