Method for mending primary tree hole

Abstract

The invention relates to a method for mending a primary tree hole, which comprises the following steps: preparing raw materials; cleaning up the tree hole; sterilizing the tree hole; preparing a sizing agent: mixing and stirring dried wood flour, fiber or fine wood shavings with an inorganic adhesive in a mass ratio of 1-2:1 to prepare the sizing agent; filling the sizing agent: after an inner wall of the tree hole is dried until the water ratio is smaller than 14 percent, pouring the sizing agent into the tree hole, and sealing and fixing outside the hole opening until the sizing agent is filled in the gap in the hole to ensure that the sizing agent is filled and adhered to an inner side of the tree hole; curing the sizing agent; and performing simulation modification. Therefore, the sizing agent filled in the tree hole has natural characteristic index which is more approximate to the tree per se, and has toughness, corrosion resistance and fire resistance and enhances the effect of strengthening the tree. In addition, the technology is simple and the repair quality is reliable.

Description

technical field [0001] The invention relates to a method for repairing a hollow tree body, in particular to a method for repairing an old tree over a hundred years old. Background technique [0002] As we all know, trees (especially old trees over a hundred years old) grow weaker with age and growth, or due to other human factors, the xylem is easy to rot and form cavities, and some even reach the roots, forming Extra large tree hole (hollow). Due to the rot of the xylem and the influence of water, it is easy to cause the reproduction of fungi, further expand the cavity, seriously reduce the growth force and weaken the growth potential, reduce the load capacity of the trunk, and shorten the life span of the tree. If the tree hole is not repaired in time, the trunk will be scraped off, and in severe cases, tourists will be injured. [0003] Tree hole repairing is an important task in tree (old tree) conservation measures, and it is also an effective measure to prolong the l...

AI Technical Summary

Problems solved by technology

There are two traditional methods for repairing tree holes: one is the masonry stacking method, where layers of bricks are piled up and the exterior is painted; in this method, the expansion coefficient of cement and lime is inconsistent with the change of the tree body, and it is easy to cause damage. Cracks, water seeps into tree holes through cracks, and after the tree absorbs water, it will accelerate the decay of the tree

Another method is the watering method attached to the body. The shell board is made according to the tree body, and after the steel bar is tied inside the vertical body, concrete (the mixture of small gravel and cement is 3:1) or polyurethane hard foam material is poured, compacted and Forming, such as Chinese patents CN02124060.4 and CN200510086727.7; cracks will be produced between the living tree body and the repair, and the cracks will be immersed in water, bacteria, insects, etc., and the xylem will be rotted, and it must be removed. Rotten wood and insect damage, the original padding must be knocked out and repaired; and the cost of repairing polyurethane rigid foam materials is high, and the support strength is not enough

Both of the above two tree hole repair methods have inconsistencies between the repair material and the tree itself, and the combination is not tight, often falling off or cracking, and affecting the growth of the tree.

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