Supporting wall

Abstract: The utility model discloses a temporary supporting wall for group pit construction. A supporting wall is arranged in a beforehand construction subregion, a support in a post construction subregion is supported on the supporting wall, and the supporting wall is transverse. In the utility model, through the arrangement of the temporary supporting wall, subregion walls in group pit construction can be removed gradually during the follow-up foundation pit construction, and the support for follow-up foundation pit is changed to the temporary supporting wall in the beforehand construction structure. The utility model has the advantages of high efficiency, easy construction, and the like.

Abstract: The utility model discloses a composite supporting structure for foundation pit engineering of a soft soil area. The composite supporting structure comprises an original supporting wall and a new supporting wall, wherein the new supporting wall is adhered to the inner side surface of the original supporting wall, and extends towards the excavation depth direction of a foundation pit; and a gap is reserved between adhered surfaces of the new supporting wall and the original supporting wall and is filled with a reinforcing and force-transferring body. The composite supporting structure is particularly suitable for the situation that stories are required to be added in underground space after a foundation pit supporting wall for the underground space of the soft soil area is finished; earthwork can be excavated safely and conveniently in a basement storey-adding process; a new supporting wall portion which occupies the area of an added storey of the basement can be removed feasibly in a chiseling manner on the premise that the safety and the reliability of the whole basement are not affected; and a phenomenon that the new supporting wall occupies the building area of the basement in a construction stage is effectively avoided.