Concrete cut method
The development of big cities is faster and faster, the construction land is less and less, many old buildings can not keep up with the actual use of demand in the use of functions, will lead to a lot of construction based on the new use of functions for reconstruction and expansion, reconstruction in order to avoid excessive impact on the original construction, so the structural part of the removal of Huaxia to use artificial. The removal of concrete cutting, removal of mechanical drilling and other construction can not meet the requirements of the construction, so the market presents the removal of concrete cutting, the advantages of this method is that construction will not affect the retained structure, construction speed, high efficiency, no noise, no dust and so on.
1. the way to remove the supporting beams:
2. With the development of the city construction, the land in the city is becoming less and less, the basement of the project is digging deeper and deeper, the foundation pit support will inevitably set up support beams to ensure the safety of the foundation pit and its surrounding, and in the basement structure construction, the support beams must be removed before the next step of the process, support beams removed. The speed of the project directly affects the progress of the project and the workers'delay in work, and so on. Based on the construction experience, we summarize the advantages and disadvantages of several methods of removing the support beam.
3. Explosion Removal: Using air pick to drill holes in the support beam, setting explosive to drill and tidy the concrete block manually and mechanically after explosion, the advantage is that the construction speed is quick, the tidying is simple, the cost is low, the defect is that the relevant procedures are difficult to deal with, which has a greater impact on the surrounding areas and certain limitations.
4. Static explosion removal: the use of wind cannons to drill the support beam surface, the hoop is cut, and then drilled on the beam, set expansion agent, after the reaction will expand a large number of beam cracking, and then use wind cannons to break, Shanghai house consolidation and finishing. The advantage is that there is no restriction. It is safer. The arrangement is simple. The cost is medium. The defect is that the construction speed is slow. It needs a lot of construction personnel.
5. Cutting and removing: Supporting the supporting beam, cutting and dividing the beam body by cutting method, using crane to break the foundation pit or transport to the designated place and then crushing and recovering the steel bar. The biggest limitation of cutting and removing is that large cranes can be placed around the foundation pit. The advantage is that the construction speed is very fast. The cost is relatively low when the large crane can be placed. The defect is that the place is required to be higher (the location of the crane is required). The transportation cost is high (such as can not be piled up and broken on site).
6. Combination of cutting and static crushing removal: For the part of foundation pit which can place large cranes but has some limitations, the method of mechanical cutting and static crushing can be adopted. The method of support beam cutting and removal can ensure the construction period to the maximum limit, and the number of staff in the cutting and crushing group is relatively required. Low.
7. Removal of the waist beam: the waist beam removal generally advocates the use of static breakage method to remove, because the waist beam side and the continuous wall connection, such as the use of cutting method construction costs will be high.
Shandong Tianqi Architectural Technology Co., Ltd., the Shandong reinforced concrete static cutting interested friends can pay attention to us: