Method for repairing soil crack in cave dwelling

Abstract

The present invention provides a method for repairing a soil crack in a cave dwelling, comprising: grouting the soil crack to form a repair wall body; drilling mounting holes in the repair wall body towards the interior of the soil crack, and the mounting holes running through the repair wall body and then entering an original soil body; mounting tie rods in the mounting holes, wherein the length of the tie rods is less than the depth of the mounting holes; filling the mounting holes in which the tie rods are mounted; laying a corrosion-resistant grid body outside the repair wall body; applying wall powder onto the surface of the corrosion-resistant grid body, so that the surface of the repair wall body is consistent with the surface of the original soil body in morphology. Repairing the soil crack in the cave dwelling according to the method of the present application involves simple operation steps and achieves high stability of a repaired wall surface.

Description

Repair method of cave soil cracks Technical Field

[0001] The invention belongs to the field of cave repair, and in particular relates to a method for repairing cracks in cave soil. Background Art

[0002] In northern my country, cultural relic cave dwellings or similar traditional residential cave dwellings pose safety hazards due to long-term erosion by rainwater and are threatened by geological disasters such as landslides and mud-rock flows in the surrounding areas. If no measures are taken to protect and repair them, they will become increasingly dilapidated and even face the risk of cave collapse.

[0003] Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method for repairing cracks in cave soil to solve the above-mentioned problems.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a method for repairing cracks in cave soil, comprising:

[0006] Grouting is performed on soil cracks to form filling walls;

[0007] Open an installation hole on the filling wall toward the soil crack, with the depth of the installation hole greater than the crack depth;

[0008] Install the tie rod in the mounting hole, and the length of the tie rod should be less than or equal to the depth of the mounting hole;

[0009] Fill the mounting holes where the tie rods are installed;

[0010] Lay corrosion-resistant grid outside the filling wall;

[0011] Brush wall powder on the surface of the corrosion-resistant grid to make the surface of the filled wall consistent with the surface morphology of the original soil.

[0012] Optionally, grouting soil cracks to form a filling wall includes:

[0013] Determine the slurry used for the original soil;

[0014] Use new mud that is consistent with the original soil mud to grout the soil cracks.

[0015] Optionally, after opening the installation hole on the filling wall toward the soil crack, the method further includes:

[0016] After the pull rod is installed in the mounting hole, one end of the pull rod is located at the entrance of the mounting hole;

[0017] When the corrosion-resistant grid is laid outside the filling wall, the corrosion-resistant grid is fixed with the tie rod.

[0018] Optionally, the step of opening a mounting hole on the filling wall toward the soil crack includes:

[0019] The installation holes are evenly distributed on the filling wall;

[0020] If there are more than two rows or columns of mounting holes, the mounting holes in two adjacent rows or columns are staggered.

[0021] Optionally, filling the mounting hole where the pull rod is installed includes:

[0022] Inject the mixed slurry of PS solution and soil powder into the installation hole for filling.

[0023] Optionally, a mixture of PS solution and soil powder is injected into the mounting hole for filling, including:

[0024] The PS solution and soil powder mixed slurry is injected into the installation hole by pressure grouting, and the mixing ratio between the PS solution and the soil powder is 1:2~3.

[0025] Optionally, a mounting hole is opened on the filling wall toward the soil crack, including:

[0026] The ratio between the depth of the installation hole and the depth of the cracks in the cave soil is 1.5 to 2.5:1.

[0027] Optionally, a corrosion-resistant mesh is laid outside the infill wall, including:

[0028] The corrosion-resistant mesh body is made of glass fiber mesh cloth.

[0029] Optionally, paint the surface of the corrosion-resistant mesh with wall powder, including:

[0030] Brush a mixture of PS solution and soil powder on the surface of the corrosion-resistant grid so that the surface is flush with and connected to the original soil after the wall powder is applied.

[0031] Optionally, installing the pull rod in the mounting hole includes:

[0032] Determine the length of the tie rod according to the depth of the mounting hole;

[0033] A tie rod is manufactured and reinforcing ribs are arranged on the tie rod, with the reinforcing ribs and the tie rod being arranged to intersect with each other.

[0034] As described above, the cave soil crack repair method of the present invention has the following beneficial effects:

[0035] In this solution, grouting is performed in the cracks of the soil to fill them and form a filling wall. A mounting hole is drilled through the filling wall and then into the original soil. A tie rod is then installed in the mounting hole, and the hole is then filled. This connects the filling wall to the original soil via the tie rod and the filling body, increasing the stability of the filling wall and reducing the possibility of it detaching from the original soil. A corrosion-resistant mesh is installed outside the filling wall to increase its strength, and then wall powder is applied to align the repaired wall surface with the original. Sculpture reconstruction and other operations can now be performed on the repaired wall.

[0036] The method of the present application is used to repair cracks in the cave soil, and the operation steps are simple, and the repaired wall surface has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] FIG1 is a flow chart of a method for repairing cracks in cave soil according to an embodiment of the present invention.

[0038] FIG2 is a schematic cross-sectional view of a cave soil crack repair structure according to an embodiment of the present invention.

[0039] FIG3 is an enlarged view of point A0 in FIG2 .

[0040] FIG4 is a schematic diagram showing the distribution of mounting holes in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The reference numerals in the drawings of the specification include: original soil 1, filling wall 2, filling body 3, tie rod 4, reinforcing rib 401, corrosion-resistant grid body 5, wall powder 6, and installation hole 7.

[0042] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0043] The present invention provides a method for repairing cracks in cave soil, as shown in FIG1 , and a cave soil crack repair structure formed by applying the method is shown in FIG1 to FIG3 .

[0044] Referring to FIG. 1 , in an exemplary embodiment of the present application, a method for repairing cracks in cave soil is provided, which includes at least steps S100 to S600 .

[0045] Step S100: grouting soil cracks to form a filling wall 2.

[0046] It should be noted that grouting is performed on the soil cracks to fill the cracks on the wall 2 .

[0047] Step S200: Open a mounting hole 7 on the filling wall 2 toward the soil crack, wherein the depth of the mounting hole 7 is greater than the depth of the soil crack.

[0048] In this embodiment, the installation hole 7 is opened to facilitate the installation of the pull rod 4 described later. The depth of the installation hole 7 is greater than the depth of the soil crack so that the pull rod 4 can extend into the original soil 1.

[0049] Step S300 , installing the pull rod 4 in the mounting hole 7 , wherein the length of the pull rod 4 is less than or equal to the depth of the mounting hole 7 .

[0050] In this embodiment, the tie rod 4 is installed to connect the original soil 1 and the filling wall 2.

[0051] Step S400: filling the mounting hole 7 where the pull rod 4 is mounted.

[0052] It should be noted that when filling the installation hole 7, the filling solution enters the gap between the original soil 1 and the filling wall 2 from the installation hole 7 and flows, thereby further filling the crack.

[0053] Step S500 : Laying the corrosion-resistant mesh body 5 outside the filling wall 2 .

[0054] It should be noted that the corrosion-resistant mesh body 5 is provided to strengthen the wall and provide waterproofing.

[0055] Step S600 : applying wall powder 6 on the surface of the corrosion-resistant grid body 5 so that the surface of the filling wall 2 is consistent with the surface morphology of the original soil body 1 .

[0056] In this embodiment, wall powder 6 is applied on the surface of the corrosion-resistant grid body 5 to restore the surface of the filling wall 2 and strengthen the wall surface.

[0057] In an exemplary embodiment, step S100, the process of grouting soil cracks to form a filling wall 2 includes at least steps S110 and S120.

[0058] Step S110, determining the slurry used for the original soil.

[0059] Step S120: Grouting soil cracks with new slurry that is consistent with the original soil slurry.

[0060] In this embodiment, the mud originally used in the cave soil is used to fill the cracks, restoring the cave as much as possible.

[0061] In an exemplary embodiment, after the installation hole 7 is opened on the filling wall 2 toward the soil crack in step S200, the method further includes steps S210 and S220.

[0062] In step S210 , after the pull rod 4 is installed in the mounting hole 7 , one end of the pull rod 4 is located at the entrance of the mounting hole 7 .

[0063] It should be noted that one end of the pull rod 4 is inserted into the mounting hole 7 on the original soil body 1 , and the other end of the pull rod 4 is located at the entrance of the mounting hole 7 .

[0064] In step S220 , when the corrosion-resistant mesh body 5 is laid outside the filling wall 2 , the corrosion-resistant mesh body 5 is fixed to the tie rod 4 .

[0065] It should also be noted that the pull rod 4 is fixed to the corrosion-resistant grid body 5 , which plays a fixing role on the corrosion-resistant grid body 5 and increases the stability of the installation of the corrosion-resistant grid body 5 .

[0066] In an exemplary embodiment, in step S200 , the process of opening the installation hole 7 on the filling wall 2 toward the soil crack includes at least steps S230 and S240 .

[0067] Step S230 : The mounting holes 7 are evenly distributed on the filling wall 2 .

[0068] In this embodiment, the mounting holes 7 are evenly distributed on the filling wall 2 , so as to improve the stability between the filling wall 2 and the original soil 1 .

[0069] Step S240 : If there are more than two rows or columns of mounting holes 7 , the mounting holes 7 in two adjacent rows or columns are staggered.

[0070] In this embodiment, as shown in FIG. 4 , in order to make the filling wall 2 more stable, the mounting holes 7 are staggered to achieve a plum blossom arrangement.

[0071] For example, when filling the installation holes 7 , the lower installation holes 7 are filled first, and then the upper installation holes 7 are filled, so that the filler can flow into the gap between the wall 2 and the original soil 1 .

[0072] In an exemplary embodiment, in step S400 , filling the mounting hole 7 in which the pull rod 4 is mounted includes injecting a mixed slurry of PS solution and soil powder into the mounting hole 7 for filling.

[0073] In this embodiment, a mixed slurry of PS solution (i.e., high modulus potassium silicate solution) and soil powder is used to fill the mounting hole 7 to form the filling body 3. Compared with filling with mud alone, the stability of the filling body 3 after drying can be increased.

[0074] In an exemplary embodiment, the PS solution and soil powder mixed slurry is injected into the mounting hole 7 for filling, including: injecting the PS solution and soil powder mixed slurry into the mounting hole 7 by pressure grouting, with the mixing ratio between the PS solution and the soil powder being 1:2-3.

[0075] In this embodiment, the mixing ratio of the PS solution to the soil powder is 1:2-3, so as to increase the strength of the filling body 3 after drying.

[0076] Exemplarily, the mixing ratio between the PS solution and the soil powder is 1:2.

[0077] In an exemplary embodiment, in step S200, an installation hole 7 is opened on the filling wall 2 toward the soil crack, wherein the ratio of the depth of the installation hole 7 to the depth of the cave soil crack is 1.5 to 2.5:1.

[0078] In this embodiment, in order to ensure the connection stability between the original soil 1 and the filling wall 2 after the pull rod 4 is installed, the ratio of the depth of the installation hole 7 to the depth of the cave soil crack is set to: 1.5~2.5:1.

[0079] Exemplarily, the ratio of the depth of the installation hole 7 to the depth of the crack in the cave soil is 2:1.

[0080] In an exemplary embodiment, in step S500 , a corrosion-resistant mesh body 5 is laid outside the filling wall 2 , which includes: the corrosion-resistant mesh body 5 is made of glass fiber mesh cloth.

[0081] It should be noted that the fiberglass mesh cloth is not easily corroded and can increase the service life of the repair cavity compared to the use of iron mesh.

[0082] In an exemplary embodiment, applying wall powder 6 on the surface of the corrosion-resistant grid body 5 includes:

[0083] A mixture of PS solution and soil powder is brushed on the surface of the corrosion-resistant grid body 5 so that the surface of the wall powder 6 is flush with and connected to the original soil.

[0084] In this embodiment, the wall powder 6 is a mixture of PS solution and soil powder, the proportion of which is consistent with that of the filler 3, which plays a role in strengthening the wall surface.

[0085] It should also be noted that the slurry of the mixture of PS solution and soil powder has a certain strength after molding, and sculptures can be reshaped on its surface. The soil structure of the cave repaired with it is firm and can resist environmental erosion for a long time.

[0086] In an exemplary embodiment, in step S300 , the process of installing the pull rod 4 in the installation hole 7 at least includes step S310 and step S320 .

[0087] Step S310 , determining the length of the pull rod 4 according to the depth of the mounting hole 7 .

[0088] Exemplarily, the length of the pull rod 4 is consistent with the depth of the mounting hole 7 , and the pull rod 4 and the corrosion-resistant grid body 5 can be fixed by bundling or the like.

[0089] Step S320 , manufacturing the tie rod 4 and setting a reinforcing rib 401 on the tie rod 4 , wherein the reinforcing rib 401 and the tie rod 4 are intersected.

[0090] In this embodiment, the reinforcing rib 401 is set in a barb shape on the pull rod 4, so that the reinforcing rib 401 is inclined toward the entrance of the mounting hole 7 after being installed in the mounting hole 7, thereby increasing the stability between the pull rod 4 and the filling body 3 in the mounting hole 7.

[0091] For example, in order to ensure the connection stability between the pull rod 4 and the reinforcement rib 401 , the pull rod 4 and the reinforcement rib 401 are connected by screws.

[0092] For example, the pull rod 4 can be configured to be cylindrical, rectangular, or the like.

[0093] For example, in order to ensure stability, the barbs on the pull rod 4 are arranged at equal intervals, the spacing size is determined according to the length of the pull rod 4, and two barbs are arranged on the same pull rod 4.

[0094] Exemplarily, the pull rod 4 is configured to be tubular, with both ends of the pull rod 4 being open, and a plurality of through holes evenly distributed on the side walls of the pull rod 4. Before filling the mounting hole 7, the filler is first poured into the end of the pull rod 4 close to the entrance of the mounting hole 7, so that the filler enters the mounting hole 7 from the end of the pull rod 4 and the through hole. After the pull rod 4 is filled, the filler is filled into the mounting hole 7 again, so that the pull rod 4 is stably connected to the filling body 3 formed after the filler in the mounting hole 7 dries up.

[0095] For example, the pull rod 4 is made of wood, and the reinforcing rib 401 is made of steel bars.

[0096] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A method for repairing cracks in cave dwelling soil bodies, characterized in that, Including: Grout the soil crack to form a filling wall; Open an installation hole in the filling wall towards the soil crack, and the installation hole enters the original soil after passing through the filling wall; Install a pull rod in the installation hole, and the length of the pull rod is less than or equal to the depth of the installation hole; Fill the installation hole with the pull rod installed; Lay a corrosion-resistant grid outside the filling wall; Apply wall powder on the surface of the corrosion-resistant grid to make the surface of the filling wall consistent with the surface form of the original soil.

2. The method for repairing the cracks in the cave soil according to claim 1, wherein, The grouting of the soil crack to form a filling wall includes: Determine the slurry used for the original soil; Grout the soil crack with a new slurry consistent with the original soil slurry.

3. The method for repairing the cracking of the cave dwelling soil body according to claim 1, wherein, After opening the installation hole in the filling wall towards the soil crack, the method further includes: After installing the pull rod in the installation hole, one end of the pull rod is located at the entrance of the installation hole; When laying the corrosion-resistant grid outside the filling wall, the corrosion-resistant grid is fixed to the pull rod.

4. The method for repairing the cracks in the cave dwelling soil mass according to claim 1, wherein, Opening the installation hole in the filling wall towards the soil crack includes: The installation holes are evenly distributed on the filling wall; If there are more than two rows or two columns of installation holes, the adjacent two rows or two columns of installation holes are arranged in a staggered manner.

5. The method for repairing the cracks in the loess cave soil according to claim 1, wherein, Filling the installation hole with the pull rod installed includes: Inject a mixture of PS solution and soil powder slurry into the installation hole for filling.

6. The method for repairing the cracks in the cave dwelling soil mass according to claim 5, wherein, Injecting a mixture of PS solution and soil powder slurry into the installation hole for filling includes: Inject the mixture of PS solution and soil powder slurry into the installation hole by means of pressure grouting, and the mixing ratio between the PS solution and the soil powder is 1:2 - 3.

7. The method for repairing the cracks in the cave dwelling soil body according to claim 1, wherein Opening the installation hole in the filling wall towards the soil crack includes: The ratio of the depth of the installation hole to the depth of the cave soil crack is: 1.5 - 2.5:

1.

8. The method for repairing the cracks in the cave dwelling soil mass according to claim 1, wherein, Laying the corrosion-resistant grid outside the filling wall includes: The corrosion-resistant grid uses a fiberglass grid cloth.

9. The method for repairing the cracks in the cave dwelling soil mass according to claim 1, characterized in that, Applying wall powder on the surface of the corrosion-resistant grid includes: Apply a mixture of PS solution and soil powder on the surface of the corrosion-resistant grid so that it is flush with and connected to the original soil after applying the wall powder.

10. The method for repairing the cracks in the cave dwelling soil mass according to claim 1, wherein, Installing the pull rod in the installation hole includes: Determine the length of the pull rod according to the depth of the installation hole; Manufacture the pull rod and set reinforcing ribs on the pull rod, and the reinforcing ribs intersect with the pull rod.

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