Wall brushing method before cleaning groove hole of concrete diaphragm wall with mucky sand inclusion layer and device thereof

Abstract

The invention discloses a wall brushing method before cleaning groove holes of a concrete diaphragm wall with a mucky sand inclusion layer. The method comprises the following steps that a groove hole of a first-stage groove of the concrete diaphragm wall is formed; an I-shaped steel is arranged downwards in the groove hole of the first-stage groove along with a reinforcement cage and forms an I-shaped steel joint, and a groove segment of the first-stage groove of the concrete diaphragm wall is formed by filling the other side of the I-shaped steel joint with fillers; a grooving machine cleans the fillers on the other side of the I-shaped steel joint through a bucket teeth assembly mounted on grabs and forms a groove hole of a second-stage groove; and a joint brush is mounted on the side, where the bucket teeth assembly is located, of the grab, the grooving machine conducts cleaning and brushing wall on the other side of the I-shaped steel joint through the joint brush mounted on the corresponding grab. According to the wall brushing method before cleaning the groove holes of the concrete diaphragm wall with the mucky sand inclusion layer, the fillers on the portion of the I-shaped steel joint can be cleaned up, lateral pressure is large when the joint is scrubbed, the scrubbing effect can be improved, the connection quality on the portion of the seam can be ensured, the leakage of the concrete diaphragm wall can be effectively prevented, the call time of other equipment can be saved, and the construction period can be shortened; and in addition, the invention also provides a device used for the wall brushing method before cleaning the groove holes of the concrete diaphragm wall with the mucky sand inclusion layer.

Description

technical field [0001] The invention relates to the field of water conservancy and hydropower engineering, in particular to a method and a device for brushing the groove holes of the connecting wall of the silty sand-containing stratum before cleaning the holes. Background technique [0002] When carrying out the construction of the concrete ground connection wall, it is necessary to divide several groove sections into separate holes to form grooves, and then pour concrete into the walls separately. The ground connection walls of multiple groove sections are connected to form a concrete ground connection wall, and the two groove sections touch The place is the ground-to-wall joint. The joint of the concrete ground connection wall is the weakest part of anti-seepage ability. Especially for flow-plastic silty sandy strata, when constructing concrete ground connection walls, it is necessary to ensure the stability of the groove wall during construction so that the groove walls...

AI Technical Summary

Problems solved by technology

[0006] When using the above method for construction, it is necessary to equip a crane or an impact drilling rig to hoist and scrub tools for scrubbing construction. The scrubbing of the joint mainly relies on the side pressure of the steel wire brush's own weight to act on the joint wall. Since the joint brush is light in weight and the side pressure is small, so scrubbing The effect is poor, and it is easy to cause bad joints between the ground and the wall; in addition, the equipment scheduling arrangement is often affected by other construction procedures and cannot be cleaned in time, which is likely to cause delays in stopping and waiting, and affect the entire construction period. If the investment in equipment is increased, It will increase the project cost, high cost

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