Method for detecting disturbance of follow-up construction on same-layer instant grouting component

Abstract

The invention provides a method for detecting disturbance of follow-up construction on a same-layer instant grouting component. The method comprises the following steps: S1, determining first detection time; s2, a target and a scanning site are arranged on a test floor to carry out 360-degree point cloud scanning detection on the prefabricated part for the first time; s3, determining subsequent detection time of each time; s4, the targets and the scanning sites are arranged on the test floor again, and at least one 360-degree point cloud scanning detection is conducted on the prefabricated part again; s5, performing modeling analysis on the data of the multiple times of point cloud scanning; and S6, judging a detection result. By analyzing the detection result, whether follow-up construction disturbs the same-layer instant grouting component or not can be effectively judged, accordingly, whether the construction process is reasonable or not can be proved, and if the construction process is not reasonable, optimization adjustment can be conducted according to the detection result. The method has important significance for promoting scientific and reasonable construction of the fabricated concrete structure.

Description

technical field [0001] The invention relates to the field of prefabricated concrete structures, in particular to a detection method for subsequent construction disturbances of instant grouting components on the same floor. Background technique [0002] When the vertical members of the prefabricated concrete structure are connected by sleeve grouting, there are two grouting methods. One is instant grouting in the same layer, that is, after the prefabricated components of this layer are hoisted in place and effectively blocked (the plugging material reaches the curing age), the grouting operation will be carried out immediately, and when the compressive strength of the test block accompanied by the grouting material reaches 35MPa, continue Carry out the construction of the cast-in-place components of this layer and the superimposed floor slab of the upper layer. The other is multi-layer concentrated grouting, that is, after two or more layers of prefabricated components are h...

AI Technical Summary

Problems solved by technology

For instant grouting on the same layer, due to the short curing period of the grouting material, the compressive strength of the grouting material at the connection is still relatively low. Whether the subsequent series of construction will disturb the prefabricated components, thereby affecting the connection quality, the industry is very concerned about this, hope Able to develop feasible methods for detection and judgment

[0003] At present, there are some detection methods, but they mainly focus on the dimensional deviation of the prefabricated components themselves, without considering the influence of the external construction environment, and the detection process and judgment methods cannot be used to detect the situation that the immediate grouting components of the same layer are disturbed by subsequent construction

Images