Ancient city wall reinforcement reaction device and its use method

Abstract

The invention provides an ancient city wall reinforcement reaction force device, which consists of a bottom beam, a column, an inclined column, a steel drill, a scissors support, a steel template, a clay barrier reaction force pad, and a steel drill hole. The use of the device well solves the existing technical problems, and can both reinforce the fill so that it can prevent water from entering the ancient city wall, avoid water bubbling, pipe gushing, and even partial collapse of the ancient city wall during floods, and increase the strength of the ancient city wall itself, thereby achieving real reinforcement of the ancient city wall and ensuring the flood control safety of the ancient city wall and the safety of cultural relics.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy engineering, and in particular is an ancient city wall reinforcement reaction force device. Background Art

[0002] The ancient city walls in many places in my country have both military defense and flood control functions, such as the ancient city walls in Jingzhou, Shouzhou, Wen'an, Chaozhou, Zhaoqing, Ganzhou, Taizhou, Taihe Town, Ankang, Changde and other places; many ancient city walls are still playing a role in flood control; every year after the flood peak, the ancient city wall in Lanxi City, Zhejiang Province will have many water bubbling, pipe gushing, and even partial collapse. Floods pour into the old city, causing the urban area to be flooded, and there are safety hazards during the flood season; it is urgent to reinforce the ancient city walls to ensure flood control safety and cultural relics safety; because the fill of the ancient city walls is mostly miscellaneous fill, its structure is uneven and permeable, in order to solve the problem of water bubbling, pipe gushing and even collapse of the ancient city walls when encountering floods, the curtain grouting method often used in water conservancy projects is one of the better methods to deal with the fill of the ancient city walls. However, the particularity of the ancient city walls determines that the grouting holes are not It cannot be too close to the ancient city wall. If it is too close, the ancient city wall and part of the backfill will be squeezed and collapsed under the action of grouting pressure, which will not only fail to protect the ancient city wall, but will be counterproductive; the grouting hole is too far away from the ancient city wall, and there is a similar problem. During the flood peak, the flood enters the backfill between the ancient city wall and the curtain through a large number of holes in the ancient city wall. After the flood peak, the water will flow out of the ancient city wall along the original route. The ancient city wall and part of the backfill are very easy to collapse under the dual action of the active earth pressure and seepage force of saturated soil. Therefore, it is very necessary to invent a safe and effective method for reinforcing the ancient city wall. Summary of the invention

[0003] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides an ancient city wall reinforcement reaction force device, which is composed of a bottom beam, a column, an inclined column, a steel drill, a scissors support, a steel template, a clay barrier reaction force pad, and a steel drill hole. The bottom beam, the column, and the inclined column are connected as an integral bracket by welding, and the bottom beam is provided with a steel drill hole; the column is provided with a screw hole, the two ends of the scissors support are provided with screw holes, and the steel template is provided with a screw hole. The scissors support is connected to the column by screws, the steel template is connected to the column by screws, and each piece of the steel template is connected by a template card.

[0004] The above-mentioned ancient city wall reinforcement reaction device includes the following usage methods:

[0005] The first step is to level the site and manually make the ground at the bottom of the ancient city wall flat;

[0006] The second step is to put the whole bracket in place, with the bottom beam perpendicular to the extension line of the ancient city wall, and the distance between the column and the ancient city wall is 0.8 meters. Put the steel drill into the steel drill hole and drive it into the ground, and anchor the whole bracket firmly through the steel drill;

[0007] Step 3: Repeat step 2 to anchor the next integral support, and so on, until the integral support of the entire ancient city wall reinforcement section is anchored;

[0008] The fourth step is to use screws to fix the two ends of the scissor support to the columns of the two adjacent integral brackets, and so on, until the integral brackets of the entire ancient city wall reinforcement section are connected as a whole;

[0009] The fifth step is to assemble the steel formwork between the column and the ancient city wall. Using the conventional civil engineering practice, the steel formworks are connected together through formwork clips. The assembled steel formwork is 1.0 meters high and is fixed to the column with screws.

[0010] Step 6: Fill the space between the steel formwork and the ancient city wall with clay with a plasticity index greater than 17, with a thickness of 30 cm, and compact it manually with a wooden rammer. After compaction, the thickness of the soil layer is 20 cm.

[0011] Step 7: Repeat step 6 until the thickness of the compacted clay layer is close to the height of the template;

[0012] Step 8: Repeat steps 5 to 7, and so on, until the thickness of the compacted clay layer is flush with the ancient city wall and a clay barrier reaction pad is formed;

[0013] The ninth step is to prepare grouting holes on the inner side of the ancient city wall, with a depth equal to the height of the ancient city wall, and inject cement slurry under pressure for curtain grouting;

[0014] Step 10: Three days after pouring cement slurry, pull out the steel chisel, dismantle the scissor support, integral bracket, steel formwork, and remove the clay blocking reaction pad;

[0015] The eleventh step is to use high-pressure water to clean the clay adhered to the surface of the ancient city wall, and the project is completed.

[0016] The beneficial effects of the ancient city wall reinforcement reaction force device of the present invention are as follows: the ancient city wall reinforcement reaction force device can provide sufficient reaction force protection for the ancient city wall, and curtain grouting holes can be prepared close to the inner side of the ancient city wall for pressure grouting. Under the action of grouting pressure, the ancient city wall and the backfill can be in a static and safe state, and there will be no problem of being squeezed and collapsed; because the ancient city walls are mostly built with stone strips, there are a large number of gaps and holes between the stone strips; the clay barrier reaction force pad part of the ancient city wall reinforcement reaction force device can also protect the cement slurry from fully entering the large number of gaps and holes in the ancient city wall, and play the role of gap and hole filling and stone strip bonding for the ancient city wall. The device solves the existing technical problems well, and achieves that it can not only reinforce the backfill so that it can prevent water from entering the ancient city wall, avoid water bubbling, pipe gushing, and even partial collapse of the ancient city wall during flood season, but also increase the strength of the ancient city wall itself, realize the real reinforcement of the ancient city wall, and ensure the flood control safety of the ancient city wall and the safety of cultural relics. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the ancient city wall reinforcement reaction device;

[0018] Figure 2 This is a schematic diagram of the ancient city wall after being reinforced using the device;

[0019] Figure 3 It is a schematic diagram of the device without clay barrier reaction pad;

[0020] Figure 4 It is a partial schematic diagram of the device without clay barrier reaction pad;

[0021] Figure 5 It is a schematic diagram of the device without clay barrier reaction pad and steel formwork;

[0022] Figure 6 This is a schematic diagram of an overall bracket of the device. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] like Figure 1-6 As shown, the ancient city wall reinforcement reaction force device of the present invention is composed of a bottom beam 1, a column 2, an inclined column 3, a steel drill 4, a scissors support 5, a steel template 6, a clay barrier reaction force pad 7, and a steel drill hole 8. The bottom beam 1, the column 2, and the inclined column 3 are connected as an integral bracket by welding, and the bottom beam 1 is provided with a steel drill hole 8; the column 2 is provided with a screw hole, the two ends of the scissors support 5 are provided with screw holes, and the steel template 6 is provided with screw holes. The scissors support 5 is connected to the column 2 by screws, the steel template 6 is connected to the column 2 by screws, and each piece of the steel template 6 is connected by a template card. This is a general method for civil engineering.

[0025] The above-mentioned ancient city wall reinforcement reaction device includes the following usage methods:

[0026] The first step is to level the site and manually make the ground at the bottom of the ancient city wall flat;

[0027] In the second step, the overall support is in place, the bottom beam 1 is perpendicular to the extension line of the ancient city wall, the column 2 is 0.8 meters away from the ancient city wall, the steel drill 4 is placed in the steel drill hole 8, driven into the ground, and the overall support is firmly anchored by the steel drill 4;

[0028] Step 3: Repeat step 2 to anchor the next integral bracket, and so on, until all integral brackets of the entire ancient city wall reinforcement section are anchored;

[0029] The fourth step is to use screws to fix the two ends of the scissor support 5 to the columns 2 of the two adjacent integral brackets, and so on, until the integral brackets of the entire ancient city wall reinforcement section are connected as a whole;

[0030] Step 5: Assemble the steel formwork 6 between the column 2 and the ancient city wall. Use the conventional civil engineering method to connect the steel formworks 6 together through formwork clips. The assembled steel formwork 6 is 1.0 meter high. Fix the assembled steel formwork 6 on the column 2 with screws.

[0031] Step 6: Fill clay with a plasticity index greater than 17 between the steel formwork 6 and the ancient city wall to a thickness of 30 cm, and tamp it manually with a wooden rammer until the soil layer is 20 cm thick;

[0032] Step 7: Repeat step 6 until the thickness of the compacted clay layer is close to the height of the template;

[0033] Step 8, repeating steps 5 to 7, and so on, until the thickness of the compacted clay layer is flush with the ancient city wall, and the clay barrier reaction pad 7 is formed;

[0034] The ninth step is to prepare grouting holes on the inner side of the ancient city wall, with a depth equal to the height of the ancient city wall, and inject cement slurry under pressure to perform curtain grouting, a common method in civil engineering;

[0035] Step 10: Three days after pouring cement slurry, pull out the steel chisel 4, dismantle the scissor support 5, the integral bracket, the steel formwork 6, and remove the clay barrier reaction pad 7;

[0036] The eleventh step is to use high-pressure water to clean the clay adhered to the surface of the ancient city wall, and the project is completed.

[0037] The ancient city wall reinforcement reaction force device of the present invention can provide sufficient reaction force protection for the ancient city wall, and can prepare curtain grouting holes close to the inner side of the ancient city wall for pressure grouting. Under the action of grouting pressure, the ancient city wall and fill can be in a static and safe state, and will not be squeezed and collapsed. Since the ancient city walls are mostly built with stone strips, there are a large number of gaps and holes between the stone strips. The clay barrier reaction force pad part of the ancient city wall reinforcement reaction force device can also protect the cement slurry from fully entering the large number of gaps and holes in the ancient city wall, and play the role of gap and hole filling and stone strip bonding on the ancient city wall. The device well solves the existing technical problems and achieves both The reinforced backfill can prevent water from entering the ancient city wall, avoid water bubbling, pipe gushing, and even partial collapse of the ancient city wall during flood season, and increase the strength of the ancient city wall itself, thus achieving real reinforcement of the ancient city wall and ensuring the flood control safety and cultural relics safety of the ancient city wall. This embodiment is for the reinforcement of ancient city walls with flood control requirements. This method is also applicable to the reinforcement of ancient city walls, ancient buildings and other buildings and structures without flood control requirements. As long as it belongs to the basic principle of the patent: the idea of ​​using flexible, low-permeability granular structural materials such as clay as flexible templates to play a blocking role, whether the reinforcement is carried out on one side or both sides of the wall, it falls within the protection scope of this patent.

Claims

1. An ancient city wall reinforcement reaction force device, the ancient city wall reinforcement reaction force device is composed of a bottom beam (1), a column (2), an inclined column (3), a steel drill (4), a scissors support (5), a steel template (6), a clay barrier reaction force pad (7), and a steel drill hole (8), characterized in that: The bottom beam (1), the column (2), and the inclined column (3) are connected by welding to form an integral bracket. The bottom beam (1) is provided with a steel drill hole (8); the column (2) is provided with a screw hole, the two ends of the scissor support (5) are provided with screw holes, the steel template (6) is provided with screw holes, the scissor support (5) and the column (2) are connected by screws, the steel template (6) and the column (2) are connected by screws, and each piece of the steel template (6) is connected by a template card; the above-mentioned ancient city wall reinforcement reaction device includes the following use method: The first step is to level the site and manually make the ground at the bottom of the ancient city wall flat; The second step is to put the whole support in place, with the bottom beam (1) perpendicular to the extension line of the ancient city wall, and the column (2) 0.8 meters away from the ancient city wall. The steel drill (4) is placed into the steel drill hole (8) and driven into the ground, and the whole support is firmly anchored by the steel drill (4); Step 3: Repeat step 2 to anchor the next integral support, and so on, until the integral support of the entire ancient city wall reinforcement section is anchored; Step 4: Use screws to fix the two ends of the scissor support (5) to the columns (2) of the two adjacent integral brackets, and so on, until the integral brackets of the entire ancient city wall reinforcement section are connected into a whole; Step 5: assemble the steel formwork (6) between the column (2) and the ancient city wall. Use the conventional civil engineering method to connect the steel formworks (6) together through formwork clips. The assembled steel formwork (6) is 1.0 meters high. Use screws to fix the assembled steel formwork (6) on the column (2). Step 6: Fill clay with a plasticity index greater than 17 between the steel formwork (6) and the ancient city wall to a thickness of 30 cm, and tamp it manually using a wooden rammer. After tamping, the soil layer thickness is 20 cm. Step 7: Repeat step 6 until the thickness of the compacted clay layer is close to the height of the template; Step 8, repeat steps 5 to 7, and so on, until the thickness of the compacted clay layer is flush with the ancient city wall, and a clay barrier reaction pad (7) is formed; The ninth step is to prepare grouting holes on the inner side of the ancient city wall, with a depth equal to the height of the ancient city wall, and inject cement slurry under pressure for curtain grouting; Step 10: Three days after pouring cement slurry, pull out the steel chisel (4), dismantle the scissor support (5), the integral support, the steel formwork (6), and remove the clay barrier reaction pad (7); The eleventh step is to use high-pressure water to clean the clay adhered to the surface of the ancient city wall, and the project is completed.

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