Method for manufacturing rammed earth test wall and rammed earth test wall

Abstract

The invention discloses a rammed earth test wall manufacturing method and a rammed earth test wall, and relates to the technical field of ruin protection. The rammed earth test wall manufacturing method comprises the steps that a ramming layer of a bottom layer is rammed on a foundation surface; a through groove is dug downwards in the top face of the ramming layer to the bearing face of the bottom face of the ramming layer; the separation cloth is placed in the through groove, the separation cloth makes contact with the bearing face of the bottom face of the ramming layer and the two side faces of the through groove, the two side faces of the through groove are completely covered with the separation cloth, and the part, placed in the through groove, of the separation cloth forms a filling space in a surrounding mode; filling a filler and a support body into the filling space; the two ends, reserved outside the through groove, of the separation cloth are fixedly connected, and the top face of the separation cloth is flush with the top face of the ramming layer; ramming upwards layer by layer on the ramming layer of the bottom layer to obtain a test wall main body; cleaning each through groove to form a simulated crack, firstly taking out the support body, and then taking out the filler and the separation cloth; the method can effectively improve the similarity between the simulated fracture and the real fracture, and is convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of site protection, and in particular to a rammed earth test wall manufacturing method and a rammed earth test wall. Background Art

[0002] Earthen sites are buildings or architectural remains that are made of earth as the main construction material and have been left over for a long time. The main construction methods of earthen sites include raw earth excavation, adobe construction, mud pounding and ramming. Among them, ramming technology is widely used in the construction of various buildings or structures because of its simple operation, fewer construction restrictions, high strength of rammed earth buildings and strong resistance to weathering. Rammed earth sites provide a reliable basis for the study of ancient architecture, history, culture and environmental changes.

[0003] Due to the particularity of the cultural relics protection industry, the use of many protection measures needs to be tested to verify their feasibility before they can be implemented on the cultural relics. As a common disease of earthen building sites, cracks need to be simulated in the preliminary tests of many engineering projects. The cracks in the soil of conventional sites are mainly divided into four categories according to their causes: structural cracks, unloading cracks, deformation cracks and construction process cracks. However, due to the different construction methods of rammed earth sites, the cracks produced have their own special forms and characteristics. Cracks are one of the most common diseases in rammed earth sites. They not only affect the overall stability of the soil of the site, but are also often the main cause of the development of other diseases. The development of cracks is often accompanied by the occurrence of diseases such as collapse, gullies and caves. Short-term concentrated precipitation and large temperature differences between day and night are the main factors causing the deterioration of cracked soil in rammed earth sites. In order to meet the requirements of scientific research and engineering protection, cracks need to be simulated frequently. Usually, the block production method, cutting method and solid plate filling method are used to make cracks. These methods have the disadvantages of poor simulation similarity and difficult operation. Therefore, studying the technology and methods suitable for simulating crack diseases in rammed earth sites is of great significance for preventing the development of diseases in rammed earth sites and protecting the sites. Summary of the invention

[0004] The purpose of the present invention is to provide a rammed earth test wall manufacturing method and a rammed earth test wall to solve the problems existing in the above-mentioned prior art, which can effectively improve the similarity between simulated cracks and real cracks and is easy to operate.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a method for manufacturing a rammed earth test wall, comprising the following steps:

[0007] Step 1: Ram the bottom layer on the foundation surface;

[0008] Step 2: digging a through groove downward on the top surface of the rammed layer to the bearing surface of the bottom surface of the rammed layer;

[0009] Step 3: Place the separator cloth into the through groove, so that the separator cloth contacts the bearing surface of the bottom surface of the ramming layer and the two side surfaces of the through groove, and the separator cloth completely covers the two side surfaces of the through groove, and the portion of the separator cloth placed in the through groove forms a filling space, leaving the two ends of the separator cloth outside the through groove;

[0010] Step 4: Fill the filling space with fillers and support bodies, compact them, and ensure that the support bodies can be taken out of the filling space from the outside;

[0011] Step 5: Place the two ends of the partition cloth reserved outside the through groove tightly against the filler, and fix the two ends of the partition cloth reserved outside the through groove so that the top surface of the partition cloth is flush with the top surface of the ramming layer;

[0012] Step 6: Ramming up layer by layer on the rammed layer of the bottom layer to obtain a test wall body, wherein after ramming of each rammed layer is completed, steps 2 to 5 are repeated;

[0013] Step 7: After the curing is completed, the through grooves are cleaned from top to bottom in sequence. The through grooves are connected to form simulated cracks. When cleaning each layer of the through grooves, the support body is first taken out, and then the filler and the separator cloth are taken out.

[0014] Preferably, the partition cloth is made of waterproof canvas.

[0015] Preferably, the filler is standard medium sand.

[0016] Preferably, the support body is a PVC tube.

[0017] Preferably, in step five, the two ends of the separator cloth reserved outside the through slot are bonded.

[0018] Preferably, in step 4, the filler is filled into the filling space twice, half of the filler is filled into the filling space for the first time, compacted, and the support body is placed therein, and then the other half of the filler is filled into the filling space for the second time, compacted.

[0019] Preferably, after step seven, the method further comprises step eight: using a high-pressure air gun to blow out each of the through grooves.

[0020] The present invention also provides a rammed earth test wall, which is made by the rammed earth test wall manufacturing method as described above, and includes a test wall main body, wherein a simulated crack is opened on the test wall main body, and the test wall main body is divided into a plurality of rammed layers from bottom to top, each of the rammed layers is opened with a through groove, and each of the through grooves is connected in sequence from bottom to top to form the simulated crack; the through groove connects the top surface of the rammed layer with the bottom surface of the rammed layer, and the through groove is fixedly filled with a filling body, and the filling body includes a separation sleeve, a filler and a support body, the separation sleeve is formed by fixedly connecting the two ends of a separation cloth, the top surface of the separation sleeve is flush with the top surface of the rammed layer, the bottom surface of the separation sleeve is flush with the bottom surface of the rammed layer, and the two outer side surfaces of the separation sleeve are respectively tightly attached to the two side surfaces of the through groove, the filler is compacted and fixed in the filling space surrounded by the separation sleeve, the support body is fixedly buried in the filler, and the support body can be taken out from the filling space from the outside.

[0021] Preferably, the partition cloth is made of waterproof canvas; the filler is made of standard medium sand; and the support body is made of PVC pipe.

[0022] Preferably, the distance from the support body to the top surface of the ramming layer is equal to the distance from the support body to the bottom surface of the ramming layer.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] The rammed earth test wall manufacturing method and the rammed earth test wall provided by the present invention finally form simulated cracks that meet the design requirements through the steps of digging through grooves layer by layer, padding separation cloths, filling fillers, placing supports, and cleaning each through groove, etc., which can ensure the stability and repeatability of the simulated cracks and facilitate multiple tests and comparative analysis. Specifically: by using fillers (i.e., separation cloths, fillers, and supports) to fill the cracks during the test wall manufacturing process, after the test wall main body is manufactured, the supports are pulled out, and the fillers wrapped in the separation cloths are taken out, so as to quickly take out the fillers. Different through groove shapes and widths, i.e., different local shapes and widths of cracks can be set for each layer, so that cracks of complex shapes can be simulated, and the shape, position, and size of the cracks can be artificially simulated according to the actual cracks, so as to simulate cracks that meet the test requirements, so as to achieve the purpose of accurately simulating the real cracks in the ruins wall, thereby highly restoring the actual conditions of the large cracks in the rammed earth ruins, and the operation is convenient. This precise simulation helps researchers to more accurately understand the formation mechanism and evolution process of large crack diseases, and provides effective means for subsequent protection and restoration work. The invention provides a scientific basis for the force; by digging through grooves layer by layer and filling the through grooves layer by layer, the close combination of the simulated cracks and the rammed layer is ensured, and the ramming of the main body of the test wall is avoided; by adopting the layer-by-layer arrangement method, only one rammed layer is processed each time, and the required through grooves are formed on the rammed layer. By arranging layer by layer, the thickness and density of each rammed layer and the local arrangement of the simulated cracks can be more accurately controlled, thereby improving the accuracy and repeatability of the simulation, and cracks of different sizes and shapes can be simulated to meet different research needs. When simulating cracks of different depths and widths, it has greater flexibility, so that the formation process of the simulated cracks has a high degree of controllability, which is convenient for researchers to accurately control the parameters such as the position, size and shape of the simulated cracks according to the needs of the experiment, so as to conduct targeted research; the rammed earth test wall manufacturing method and the rammed earth test wall provided by the invention have the advantages of high authenticity and accuracy, good controllability and repeatability, simple operation and low cost, and a wide range of application in simulating large crack diseases in rammed earth ruins, and provide strong technical support for research in related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of a rammed earth test wall provided by the present invention;

[0027] Figure 2This is a schematic diagram before executing step 2 in the rammed earth test wall manufacturing method provided by the present invention;

[0028] Figure 3 This is a schematic diagram after executing step 2 in the rammed earth test wall manufacturing method provided by the present invention;

[0029] Figure 4 This is a schematic diagram after executing step three in the rammed earth test wall manufacturing method provided by the present invention;

[0030] Figure 5 It is a schematic diagram of the process of filling half of the filler into the filling space for the first time when executing step 4 in the rammed earth test wall manufacturing method provided by the present invention;

[0031] Figure 6 This is a schematic diagram of the support body after the step 4 is performed in the rammed earth test wall manufacturing method provided by the present invention;

[0032] Figure 7 It is a schematic diagram of the second filling of the other half of the filler into the filling space when executing step 4 in the rammed earth test wall manufacturing method provided by the present invention;

[0033] Figure 8 This is a schematic diagram after executing step five in the rammed earth test wall manufacturing method provided by the present invention;

[0034] In the figure: 1-filler, 2-ramming layer, 3-separating cloth, 4-interface, 5-support, 6-adhesive. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The purpose of the present invention is to provide a rammed earth test wall manufacturing method and a rammed earth test wall to solve the problems existing in the above-mentioned prior art, which can effectively improve the similarity between simulated cracks and real cracks and is easy to operate.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Embodiment 1

[0039] like Figure 1-8 As shown, this embodiment provides a method for making a rammed earth test wall, comprising the following steps:

[0040] Before the formal production, prepare the required filler 1, support 5, soil shovel, soil knife and small hammer and other materials or tools, and determine the size, position and shape of the cracks to be simulated according to the actual crack conditions of the project implementation object.

[0041] Step 1: Ramming the bottom layer 2 on the foundation surface;

[0042] Step 2: dig a through groove downward on the top surface of the rammed layer 2 to the bearing surface of the bottom surface of the rammed layer 2. Specifically, use a shovel, a soil cutter or other tools to dig a corresponding through groove that matches the size, position and shape of the desired simulated crack;

[0043] Step 3: Place the separator cloth 3 into the through groove, so that the separator cloth 3 is in full contact with the bearing surface of the bottom surface of the ramming layer 2 and the two side surfaces of the through groove to prevent the simulated crack from loosening or deformation. The separator cloth 3 completely covers the two side surfaces of the through groove, and the portion of the separator cloth 3 placed in the through groove forms a filling space, leaving the two ends of the separator cloth 3 outside the through groove. Specifically, the separator cloth 3 is cut according to the size of the through groove, so that the separator cloth 3 is sufficient to wrap the filler 1 and the support body 5 to be filled in the through groove;

[0044] Step 4: Fill the filler 1 and the support 5 into the filling space, tamp them, and ensure that the support 5 can be taken out from the filling space from the outside. Specifically, the length of the support 5 is equal to the length of the through slot, or the length of the support 5 is greater than the length of the through slot, so that one end of the support 5 can be exposed to the outside of the through slot;

[0045] Step 5: Place the two ends of the separator cloth 3 reserved outside the through groove tightly against the filler 1, and fix the two ends of the separator cloth 3 reserved outside the through groove so that the top surface of the separator cloth 3 is flush with the top surface of the ramming layer 2;

[0046] Step 6: Ramming up layer by layer on the rammed layer 2 of the bottom layer to obtain the main body of the test wall. During the ramming process, it is necessary to ensure that the ramming quality meets the requirements. Before ramming, soil is spread according to the design process. After the ramming of each rammed layer 2 is completed, steps 2 to 5 are repeated to make the through grooves of each rammed layer 2.

[0047] Step seven: After the main body of the test wall is completed, it needs to be cured for at least three months. After the curing is completed, clean the through grooves from top to bottom in turn. The through grooves are connected to form simulated cracks. When cleaning each layer of through grooves, first take out the support body 5, then take out the filler 1 and the partition cloth 3. Specifically, first take out the support body 5 to loosen the filler 1 inside, then tie the opening of one end of the partition cloth 3 with a rope to prevent the filler 1 from leaking out, and pull out the partition cloth 3 and the filler 1 from the other end of the partition cloth 3.

[0048] The rammed earth test wall manufacturing method provided in the present embodiment, through the steps of digging through grooves layer by layer, padding the partition cloth 3, filling the filler 1, placing the support body 5 and cleaning the through grooves, finally forms a simulated crack that meets the design requirements, which can ensure the stability and repeatability of the simulated cracks, and is convenient for multiple tests and comparative analysis. Specifically: by using fillers (i.e., the partition cloth 3, the filler 1 and the support body 5) to fill the cracks during the test wall manufacturing process, after the test wall main body is manufactured, the support body 5 is pulled out, and the filler 1 wrapped by the partition cloth 3 is taken out, so that the filler can be quickly taken out, and different through groove shapes and widths can be set for each layer, that is, different local shapes and widths of the cracks, which can simulate the manufacture of complex-shaped cracks. The cracks can be artificially simulated in shape, position and size according to the actual cracks, and cracks that meet the test requirements can be simulated, so as to achieve the purpose of accurately simulating the real cracks in the ruins wall, thereby highly restoring the actual situation of large cracks in the rammed earth ruins. The operation is convenient, and this precise simulation helps researchers to more accurately understand the formation mechanism and evolution process of large crack diseases, and provides a strong scientific basis for subsequent protection and restoration work; by digging through grooves layer by layer and filling the through grooves layer by layer, the close combination of the simulated cracks and the rammed layer 2 is ensured, and the ramming of the main body of the test wall is avoided; by adopting the layer-by-layer layout method, only one rammed layer 2 is processed each time, and the required through grooves are formed on the rammed layer 2, and by arranging layer by layer, The thickness and density of each rammed layer 2 and the local arrangement of the simulated cracks can be controlled more accurately, thereby improving the accuracy and repeatability of the simulation, being able to simulate cracks of different sizes and shapes to meet different research needs, and being able to have greater flexibility in simulating cracks of different depths and widths, so that the formation process of the simulated cracks is highly controllable, and it is convenient for researchers to accurately control the position, size, shape and other parameters of the simulated cracks according to the needs of the experiment, so as to conduct targeted research; the rammed earth test wall manufacturing method provided in this embodiment has a high degree of authenticity and accuracy, good controllability and repeatability, is easy to operate and has a low cost in simulating large crack diseases in rammed earth ruins. The invention has the advantages of wide application range, etc., and provides strong technical support for the research in related fields; the rammed earth test wall manufacturing method provided in this embodiment simulates the formation process of large cracks in rammed earth ruins, overcomes some shortcomings of traditional simulation methods, such as poor stability and poor repeatability, and provides a new and effective technical means for related research; the rammed earth test wall manufacturing method provided in this embodiment is simple and clear, does not require complex equipment and technical support, and is easy to promote and apply in actual research; the rammed earth test wall manufacturing method provided in this embodiment can be applied to simulation test research in the field of reinforcement and protection of rammed earth ruins, and is particularly suitable for the simulation manufacturing of cracks of more than 3 cm in rammed earth test walls;The rammed earth test wall manufacturing method provided in this embodiment is not only suitable for simulating large cracks in rammed earth site test walls, but can also be appropriately adjusted according to needs to simulate crack diseases in other types of soils and structures. It has strong versatility and practicality and can be widely used in related research in the fields of archaeology, geology, civil engineering, etc.;

[0049] The interface 4 between two upper and lower adjacent rammed layers 2 coincides with both the top surface of the lower rammed layer 2 and the bottom surface of the upper rammed layer 2 .

[0050] As a more preferred implementation of this embodiment, the partition cloth 3 is made of waterproof canvas, which can effectively prevent water penetration and ensure the stability of the simulated cracks during the manufacturing process.

[0051] As a more preferred implementation of this embodiment, the filler 1 adopts standard medium sand. The standard medium sand is used as the filler. The particle size and the friction between the particles of the standard medium sand can ensure that the support body 5 can be smoothly extracted.

[0052] As a more preferred implementation of this embodiment, the support body 5 is made of PVC pipe. The strength of the PVC pipe meets the requirements, it will not deform during the tamping process, and it can be used as a temporary support, which is convenient for removal after the simulated cracks are formed. In this embodiment, a PVC pipe with a diameter of 2 cm is used.

[0053] The rammed earth test wall manufacturing method provided in this embodiment requires common materials such as waterproof canvas, standard medium sand and PVC pipe, which are easy to obtain and have low cost.

[0054] As a more preferred implementation method of this embodiment, in step five, the two ends of the separating cloth 3 reserved outside the through groove are bonded, the inner surface of the upper edge of the separating cloth 3 is cleaned to remove surface dust, oil and moisture, and kept dry. The adhesive 6 is applied and evenly and thinly applied on the bonding surface with a brush or scraper. After 3-5 minutes, align the bonding surface at one time and squeeze it from the outside to the inside to ensure that the top surface after bonding is flush with the top surface of the ramming layer 2. The adhesive 6 can be but is not limited to epoxy resin glue or SBS adhesive 6.

[0055] As a more preferred implementation manner of this embodiment, in step four, the filler 1 is filled into the filling space twice. The first time, half of the filler 1 is filled into the filling space, preliminarily compacted with a small hammer, and the support body 5 is placed. Then, the other half of the filler 1 is filled into the filling space for the second time and compacted with a small hammer. This is to improve the stability of the filler 1 after compaction, and to facilitate the removal of the support body 5 and the filler 1 after the production is completed.

[0056] Furthermore, after step seven, the method further includes step eight: using a high-pressure air gun to blow out each through groove to remove sand, gravel and dirt.

[0057] Embodiment 2

[0058] like Figure 1-8 As shown, the present embodiment provides a rammed earth test wall, which is manufactured by the rammed earth test wall manufacturing method in the first embodiment, including a test wall body, a simulated crack opened on the test wall body, and the test wall body is divided into a plurality of rammed layers 2 from bottom to top, each rammed layer 2 is provided with a through groove, and each through groove is connected in sequence from bottom to top to form a simulated crack; the through groove connects the top surface of the rammed layer 2 with the bottom surface of the rammed layer 2, and the through groove is fixedly filled with a filling body, the filling body includes a separation sleeve, a filler 1 and a support body 5, the separation sleeve is formed by fixedly connecting the two ends of the separation cloth 3, the top surface of the separation sleeve is flush with the top surface of the rammed layer 2, the bottom surface of the separation sleeve is flush with the bottom surface of the rammed layer 2, the two outer side surfaces of the separation sleeve are respectively tightly attached to the two side surfaces of the through groove, the filler 1 is compacted and fixed in the filling space surrounded by the separation sleeve, the support body 5 is fixedly buried in the filler 1, and the support body 5 can be taken out from the filling space from the outside.

[0059] The rammed earth test wall provided in the present embodiment forms a simulated crack that meets the design requirements by digging through grooves layer by layer, padding the partition cloth 3, filling the filler 1, placing the support body 5, and cleaning the through grooves, which can ensure the stability and repeatability of the simulated cracks and facilitate multiple tests and comparative analysis. Specifically: during the production of the test wall, the cracks are filled with fillers (i.e., the partition cloth 3, the filler 1, and the support body 5). After the main body of the test wall is produced, the support body 5 is pulled out, and the filler 1 wrapped in the partition cloth 3 is taken out to quickly take out the filler. Different through groove shapes and widths can be set for each layer, i.e., different local crack shapes and widths, which can simulate the production of complex shapes. The cracks can be artificially simulated according to the actual cracks to produce the shape, position and size of the cracks, simulate the cracks that meet the test requirements, and achieve the purpose of accurately simulating the real cracks in the ruins wall, thereby highly restoring the actual situation of the large cracks in the rammed earth ruins, and the operation is convenient. This precise simulation helps researchers to more accurately understand the formation mechanism and evolution process of large crack diseases, and provides a strong scientific basis for subsequent protection and restoration work; by digging through grooves layer by layer and filling the through grooves layer by layer, ensure the close combination of the simulated cracks and the rammed layer 2, and avoid affecting the ramming of the main body of the test wall; adopt a layer-by-layer layout method, only one rammed layer 2 is processed each time, and the required through grooves are formed on the rammed layer 2, and the through grooves are filled layer by layer. By arranging layer by layer, the thickness and density of each rammed layer 2 and the local arrangement of the simulated cracks can be more accurately controlled, thereby improving the accuracy and repeatability of the simulation, being able to simulate cracks of different sizes and shapes to meet different research needs, and being able to have greater flexibility in simulating cracks of different depths and widths, so that the formation process of the simulated cracks is highly controllable, and it is convenient for researchers to accurately control the position, size and shape of the simulated cracks according to the needs of the experiment, so as to conduct targeted research; the rammed earth test wall provided in this embodiment has a high degree of authenticity and accuracy, good controllability and repeatability, and is easy to operate in simulating large crack diseases in rammed earth ruins. The advantages of simplicity, low cost and wide application range provide strong technical support for research in related fields; the rammed earth test wall provided in this embodiment simulates the formation process of large cracks in rammed earth ruins, overcomes some shortcomings of traditional simulation methods, such as poor stability and poor repeatability, and provides a new and effective technical means for related research; the rammed earth test wall provided in this embodiment is simple and clear, does not require complex equipment and technical support, and is easy to promote and apply in actual research; the rammed earth test wall provided in this embodiment can be applied to simulation test research in the field of reinforcement and protection of rammed earth ruins, and is particularly suitable for the simulation production of cracks of more than 3 cm in rammed earth test walls;The rammed earth test wall provided in this embodiment is not only suitable for simulating large cracks in rammed earth ruins test walls, but can also be appropriately adjusted according to needs to simulate crack diseases in other types of soils and structures. It has strong versatility and practicality and can be widely used in related research in the fields of archaeology, geology, civil engineering, etc.;

[0060] As a more preferred implementation manner of this embodiment, the dividing cloth 3 is made of waterproof canvas, which can effectively prevent moisture penetration and ensure the stability of the simulated cracks during the manufacturing process; the filler 1 is made of standard medium sand, the particle size of the standard medium sand and the friction between the particles can ensure that the support body 5 can be smoothly pulled out; the support body 5 is made of PVC pipe, the strength of the PVC pipe meets the requirements, it will not be deformed during the tamping process, and it serves as a temporary support, which is convenient for removal after the simulated cracks are formed; and the waterproof canvas, standard medium sand and PVC pipe are all common materials, easy to obtain and low cost.

[0061] As a more preferred implementation of this embodiment, the distance from the support body 5 to the top surface of the rammed layer 2 is equal to the distance from the support body 5 to the bottom surface of the rammed layer 2, which is convenient for improving the stability of the filler 1 after tamping, and at the same time facilitates the removal of the support body 5 and the filler 1 after production is completed.

[0062] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for making a rammed earth test wall, characterized in that: The following steps are involved: Step 1: Ram the bottom layer on the foundation surface; Step 2: digging a through groove downward on the top surface of the rammed layer to the bearing surface of the bottom surface of the rammed layer; Step 3: Place the separator cloth into the through groove, so that the separator cloth contacts the bearing surface of the bottom surface of the ramming layer and the two side surfaces of the through groove, and the separator cloth completely covers the two side surfaces of the through groove, and the portion of the separator cloth placed in the through groove forms a filling space, leaving the two ends of the separator cloth outside the through groove; Step 4: Fill the filling space with fillers and support bodies, compact them, and ensure that the support bodies can be taken out of the filling space from the outside; Step 5: Place the two ends of the partition cloth reserved outside the through groove tightly against the filler, and fix the two ends of the partition cloth reserved outside the through groove so that the top surface of the partition cloth is flush with the top surface of the ramming layer; Step 6: Ramming up layer by layer on the rammed layer of the bottom layer to obtain a test wall body, wherein after ramming of each rammed layer is completed, steps 2 to 5 are repeated; Step 7: After the curing is completed, the through grooves are cleaned from top to bottom in sequence. The through grooves are connected to form simulated cracks. When cleaning each layer of the through grooves, the support body is first taken out, and then the filler and the separator cloth are taken out.

2. The method for making a rammed earth test wall according to claim 1, characterized in that: The partition cloth is made of waterproof canvas.

3. The method for making a rammed earth test wall according to claim 1, characterized in that: The filler is standard medium sand.

4. The method for making a rammed earth test wall according to claim 1, characterized in that: The support body is a PVC tube.

5. The method for making a rammed earth test wall according to claim 1, characterized in that: In step five, the two ends of the separator cloth reserved outside the through slot are bonded.

6. The method for making a rammed earth test wall according to claim 1, characterized in that: In step 4, the filler is filled into the filling space twice. The first time, half of the filler is filled into the filling space, compacted, and the support body is placed. Then, the other half of the filler is filled into the filling space for the second time and compacted.

7. The method for making a rammed earth test wall according to claim 1, characterized in that: After step seven, the method further includes step eight: using a high-pressure air gun to blow out each of the through grooves.

8. A rammed earth test wall, produced by the rammed earth test wall production method according to any one of claims 1 to 7, characterized in that: The invention comprises a test wall body, on which a simulated crack is provided, and the test wall body is divided into a plurality of rammed layers from bottom to top, and each rammed layer is provided with a through groove, and each through groove is connected in sequence from bottom to top to form the simulated crack; the through groove connects the top surface of the rammed layer with the bottom surface of the rammed layer, and the through groove is fixedly filled with a filling body, and the filling body comprises a separation sleeve, a filling body and a supporting body, and the separation sleeve is formed by fixedly connecting the two ends of a separation cloth, the top surface of the separation sleeve is flush with the top surface of the rammed layer, the bottom surface of the separation sleeve is flush with the bottom surface of the rammed layer, and the two outer side surfaces of the separation sleeve are respectively tightly attached to the two side surfaces of the through groove, the filling body is compacted and fixed in the filling space surrounded by the separation sleeve, and the supporting body is fixedly buried in the filling body, and the supporting body can be taken out from the filling space from the outside.

9. The rammed earth test wall according to claim 8, characterized in that: The partition cloth is made of waterproof canvas; the filler is made of standard medium sand; and the support body is made of PVC pipe.

10. The rammed earth test wall according to claim 8, characterized in that: The distance from the support body to the top surface of the ramming layer is equal to the distance from the support body to the bottom surface of the ramming layer.

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