A ground settlement monitoring device for the excavation of a deeply buried anchor plug arch seat

Abstract

The present invention relates to the technical field of settlement monitoring, and specifically discloses a ground settlement monitoring device for the excavation of a deeply buried anchor plug arch seat, including: a columnar housing, on the side wall of which a plurality of through grooves are provided; an elastic adjusting member, arranged inside the columnar housing, which includes a sealing plug and an annular elastic body, the annular elastic body can contract along its radial direction, one end of the sealing plug is connected to the annular elastic body, and it is slidably arranged in the through groove, and the outer wall of the sealing plug is in close contact with the inner wall of the through groove. When the annular elastic body expands outwards, the end of the sealing plug protrudes from the columnar housing; an adjusting push rod, arranged inside the columnar housing, and the annular elastic body contracts by its vertical displacement inside the columnar housing; a monitoring component, arranged inside the columnar housing, for monitoring whether the ground subsides. The present invention can not only realize the settlement monitoring during the excavation of the ground, but also can be reused.

Description

Technical Field

[0001] The present invention relates to the technical field of settlement monitoring, and particularly relates to a ground settlement monitoring device for the excavation of a deep-buried anchor plug arch seat. Background Art

[0002] For the construction of mountain roads, tunnel construction and special bridge construction are usually involved. The special bridge is located between the tunnels at both ends. The layout of the construction site for the special bridge is relatively difficult, and the construction difficulty is extremely high. At the same time, due to the complex structure of the cable hoisting system, it is greatly affected by external factors, and the process control requirements are very high, and the risk points are widely distributed. Therefore, when constructing a mountain special bridge, it is necessary to rely on the half-through concrete-filled steel tube arch seat in the extremely complex terrain between mountain tunnels for construction.

[0003] When constructing a mountain special bridge, it is necessary to first construct the anchor plug arch seat at the tunnel exit, and then complete the construction of the special bridge based on the anchor plug arch seat through the cable hoisting system. When constructing the anchor plug arch seat, it is necessary to excavate the ground downward to a certain depth at the tunnel exit, and then construct the anchor plug arch seat.

[0004] The settlement monitoring during the ground excavation process can monitor the ground settlement situation in real time during the excavation process, provide data support for the engineering stability evaluation, and ensure the construction safety.

[0005] The settlement monitoring during the ground excavation process is a temporary monitoring and is not used for subsequent highway settlement monitoring. Therefore, if the settlement monitoring during the ground excavation process can be reused, the construction cost can be reduced. Summary of the Invention

[0006] The purpose of the present invention is to provide a ground settlement monitoring device for the excavation of a deep-buried anchor plug arch seat, which can not only realize the settlement monitoring during the ground excavation process, but also be reused.

[0007] The present invention is achieved by the following technical solutions:

[0008] A ground settlement monitoring device for the excavation of a deep-buried anchor plug arch seat, comprising:

[0009] A columnar housing, on the side wall of which there are provided a plurality of through grooves;

[0010] An elastic adjusting member, which is arranged inside the columnar housing and comprises a sealing plug and an annular elastic body. The annular elastic body can contract along its radial direction. One end of the sealing plug is connected to the annular elastic body and is slidably arranged in the through groove, and the outer wall of the sealing plug is in close contact with the inner wall of the through groove. When the annular elastic body expands outwards, the end of the sealing plug away from the annular elastic body protrudes out of the columnar housing. When the annular elastic body is in a natural state or in a state of retracting inwards, the end of the sealing plug away from the annular elastic body is placed in the through groove;

[0011] The adjusting push rod is arranged inside the columnar housing and realizes the contraction of the annular elastic body through its vertical displacement inside the columnar housing;

[0012] The monitoring component is arranged inside the columnar housing and is used to monitor whether the ground subsides.

[0013] The monitoring component of the present invention is any existing combination of sensors that can realize ground settlement monitoring.

[0014] The present invention uses a columnar housing as the supporting component of the monitoring device. The outer wall of the columnar housing is a smooth arc surface, which is beneficial to inserting or removing the monitoring device into or out of the soil body.

[0015] The present invention utilizes the radial contraction function of the annular elastic body to realize the radial displacement of the sealing plug. The radial displacement of the sealing plug can make one end of the sealing plug away from the annular elastic body protrude from the columnar housing or retract into the through groove. When one end of the sealing plug away from the annular elastic body protrudes from the columnar housing, one end of the sealing plug away from the annular elastic body is inserted into the soil body, and the settlement monitoring device can be integrally connected. When the deep-buried anchor plug body arch seat is excavated, if the ground subsides, the settlement monitoring device can subside with the soil body, which can improve the accuracy of settlement monitoring; when one end of the sealing plug away from the annular elastic body retracts into the through groove, the columnar housing is in direct contact with the soil body. Since the outer wall of the columnar housing is a smooth arc surface, it is beneficial to pull out the settlement monitoring device from the soil body by external force to realize recycling.

[0016] In summary, the present invention can not only realize the settlement monitoring during the ground excavation process, but also can be reused.

[0017] Moreover, the structure of the elastic adjusting member provided by the present invention can ensure that the sealing plug is always in close contact with the through groove during the radial movement, that is, there is no gap between the outer wall of the sealing plug and the inner wall of the through groove, which can prevent the soil in the soil body from entering the through groove or the columnar housing during the monitoring process, thereby affecting the radial displacement of the sealing plug or the radial contraction of the annular elastic body.

[0018] In a preferred embodiment, the annular elastic body at least includes two circumferentially arranged annular fixing blocks, and adjacent two annular fixing blocks are connected by springs, and one end of the sealing plug is connected to the annular fixing block.

[0019] In a preferred embodiment, the sealing plug has a cavity inside, and a liquid inlet pipe communicating with the cavity is arranged on the sealing plug; the liquid inlet pipe is used to introduce water or lubricant into the cavity;

[0020] Several through holes communicating with the cavity are arranged on the part of the sealing plug protruding from the columnar housing.

[0021] The above settings facilitate the insertion of the sealing plug into the soil body and facilitate the extraction of the settlement monitoring device from the soil body:

[0022] When the soil of the soil body is relatively dry and compact, it is difficult to insert the sealing plug into the soil body by the radial thrust provided by the radial expansion of the annular elastic body. At this time, water can be introduced into the cavity through the liquid inlet pipe, and the water is exported through the through hole to wet the soil body, reducing the hardness of the soil body and facilitating the smooth insertion of the sealing plug into the soil body.

[0023] After the excavation of the deep-buried anchor plug body arch seat is completed, lubricant can be introduced into the cavity through the liquid inlet pipe, and the lubricant is exported to the outer wall of the columnar shell through the through hole. By using the lubrication function of the lubricant, the friction between the settlement monitoring device and the soil body during extraction is reduced, which is beneficial to the extraction of the settlement monitoring device.

[0024] In a preferred manner, the sealing plug includes a sealing section. One end of the sealing section is connected to the annular elastic body, and the other end is connected to the insertion section. The sealing section is slidably disposed in the through groove, and the sealing section is always in close contact with the inner wall of the through groove;

[0025] The insertion section is of an arc-shaped structure and the thickness of the insertion section is less than or equal to the thickness of the sealing section.

[0026] The insertion section with the above arc-shaped structure has a smaller contact area with the soil body compared to a flat plate with a planar end, which is more conducive to the insertion section being inserted into the soil body.

[0027] In a preferred manner, the sealing section and the insertion section are detachably connected. The cavity in the sealing section is communicated with the cavity in the insertion section. The through hole is disposed on the side wall of the insertion section, and a filter element is disposed inside the insertion section.

[0028] The setting of the above filter element cooperates with the through hole, which can not only realize the export of water or lubricant in the cavity to the outside of the cavity, but also prevent the soil in the soil body from entering the cavity and causing blockage. The soil partly attached to the outer wall of the insertion section can be directly cleaned when the settlement monitoring device is extracted.

[0029] In a preferred manner, the sealing section includes a sealing body; the sealing body is slidably disposed in the through groove, and the sealing body is always in close contact with the inner wall of the through groove;

[0030] [[ID=z7]]A support skeleton for covering the filter element is provided at one end of the sealing body away from the annular elastic body.

[0031] In a preferred manner, the insertion section includes an insertion plate. The insertion plate is of an arc-shaped structure and the thickness of the insertion plate is equal to the thickness of the sealing section. A guiding piece is disposed on the outer wall of the insertion plate, and the thickness of the guiding piece is less than the thickness of the insertion plate.

[0032] In a preferred embodiment, the adjusting push rod includes a vertical rod, and a diameter-changing section is provided on the outer wall of the vertical rod. The contraction of the annular elastic body is achieved by the up-and-down displacement of the diameter-changing section in the annular elastic body.

[0033] In a preferred embodiment, the variable diameter section is a truncated cone structure with a central through hole or is composed of a plurality of circumferentially arranged adjustment plates, and the radial width of the adjustment plates tends to gradually decrease from top to bottom;

[0034] A sliding mechanism is provided on the inner wall of the columnar shell, and the adjusting push rod is slidably provided on the sliding mechanism.

[0035] The arrangement of the sliding mechanism can not only realize the connection between the adjusting push rod and the cylindrical housing, but also realize the vertical displacement of the adjusting push rod in the cylindrical housing.

[0036] In a preferred embodiment, the side wall of the cylindrical shell is provided with a monitoring chamber for placing the monitoring component, or a partition is provided in the cylindrical shell, which separates the cylindrical shell into an adjustment chamber and a monitoring chamber, and the elastic adjustment part and the adjustment push rod are provided in the adjustment chamber.

[0037] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0038] 1. The present invention provides an elastic adjusting member and an adjusting push rod that cooperate with each other in a cylindrical shell, wherein the adjusting push rod realizes the contraction (expansion or retraction) of the elastic adjusting member in its radial direction through vertical displacement, thereby realizing that the end of the sealing plug away from the annular elastic body protrudes from the cylindrical shell and is inserted into the soil or the end of the sealing plug away from the annular elastic body is retracted into the through groove, and always maintains no gap between the outer wall of the sealing plug and the inner wall of the through groove; during monitoring, the end of the sealing plug away from the annular elastic body is inserted into the soil, so that the settlement monitoring device settles together with the soil, thereby improving the measurement accuracy of the settlement monitoring device, and after the excavation of the deep-buried anchor body arch seat is completed, the settlement monitoring device can be pulled out of the soil for recycling.

[0039] 2. The sealing plug-in of the present invention has a cavity therein, and a liquid inlet pipe connected to the cavity is provided on the sealing plug-in; the liquid inlet pipe is used to introduce water or lubricant into the cavity, and water can be introduced into the cavity through the liquid inlet pipe, and the water is discharged through the through hole to moisten the soil, thereby reducing the hardness of the soil and facilitating the smooth insertion of the sealing plug-in into the soil; when the excavation of the deep-buried anchor plug arch seat is completed, the lubricant can be introduced into the cavity through the liquid inlet pipe to reduce the friction between the settlement monitoring device and the soil when it is pulled out, thereby facilitating the removal of the settlement monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0041] Figure 1 This is a longitudinal sectional view of the initial state of the ground settlement monitoring device for the deeply buried anchor plug body arch seat excavation in Embodiment 1 of the present invention;

[0042] Figure 2 This is a transverse sectional view of the initial state of the ground settlement monitoring device for the deeply buried anchor plug body arch seat excavation in Embodiment 1 of the present invention;

[0043] Figure 3 This is a longitudinal sectional view of the monitoring state of the ground settlement monitoring device for the deeply buried anchor plug body arch seat excavation in Embodiment 1 of the present invention;

[0044] Figure 4 This is a transverse sectional view of the monitoring state of the ground settlement monitoring device for the deeply buried anchor plug body arch seat excavation in Embodiment 1 of the present invention;

[0045] Figure 5 This is a schematic diagram of the connection between the elastic adjusting member and the columnar housing in Embodiment 1 of the present invention;

[0046] Figure 6 This is a schematic structural diagram of the sealing plug-in in Embodiment 2 of the present invention;

[0047] Figure 7 This is a schematic structural diagram of the insertion section in Embodiment 2 of the present invention.

[0048] Marks in the drawings and corresponding component names:

[0049] 1 - Columnar housing; 2 - Adjusting push rod; 3 - Elastic adjusting member; 4 - Partition board; 11 - Through groove; 12 - Adjusting chamber; 13 - Monitoring chamber; 21 - Vertical rod; 22 - Adjusting plate; 31 - Sealing plug-in; 32 - Annular elastic body; 33 - Liquid inlet pipe; 34 - Filter element; 311 - Sealing section; 312 - Insertion section; 321 - Annular fixing block; 322 - Spring; 3111 - Connecting block; 3112 - Sealing body; 3113 - Support skeleton; 3121 - Insertion plate; 3122 - Guide piece; 3123 - Through hole; 3124 - Positioning block. Detailed implementation manners

[0050] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. The following described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0051] In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those of ordinary skill in the art that the present invention may be practiced without these specific details. In other embodiments, well-known structures, materials, or methods have not been specifically described in order to avoid obscuring the present invention. Materials, instruments, reagents, etc. used in the following embodiments can be obtained commercially unless otherwise specified. The technical means used in the embodiments are conventional means well-known to those skilled in the art unless otherwise specified.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0053] Example 1:

[0054] For the monitoring of the ground settlement during the excavation of the deep-buried anchor plug body arch seat and to enable the reuse of the monitoring device, as Figures 1 - 5 shown, a ground settlement monitoring device for the excavation of a deep-buried anchor plug body arch seat in this embodiment includes:

[0055] A columnar housing 1, on the side wall of which a plurality of through grooves 11 are provided; the columnar housing 1 serves as the supporting component for the detection of the entire settlement monitoring device, and other components can be installed inside the columnar housing 1. The outer wall of the columnar housing is a smooth arc surface. Compared with a square or other shape with edges and corners, the columnar housing is more conducive to inserting or removing the monitoring device from the soil body.

[0056] Among them, the plurality of through grooves 11 can be arranged in the same circumferential direction or different circumferential directions. In a specific case, the side wall of the columnar housing 1 is provided with 8 through grooves 11, and every 4 through grooves 11 are arranged in the same circumferential direction, and the 4 through grooves 11 in the same circumferential direction are evenly arranged in the circumferential direction.

[0057] In a specific case, the top of the columnar housing 1 is an open end, which is conducive to installing other components inside the columnar housing 1. And a end cover is detachably provided at the top of the columnar housing 1, and a lifting ring connected to an external lifting mechanism is provided on the end cover.

[0058] The elastic adjusting member 3 is disposed within the columnar housing 1. It includes a sealing plug-in 31 and an annular elastic body 32. The annular elastic body 32 can contract along its radial direction. One end of the sealing plug-in 31 is connected to the annular elastic body 32 and is slidably disposed within the through groove 11, and the outer wall of the sealing plug-in 31 is in close contact with the inner wall of the through groove 11. When the annular elastic body 32 expands outward, the end of the sealing plug-in 31 protrudes from the columnar housing 1; when the annular elastic body 32 is in its natural state or in a state of retracting inward, the end of the sealing plug-in 31 away from the annular elastic body 32 is placed within the through groove 11.

[0059] Among them, the annular elastic body 32 at least includes two circumferentially arranged annular fixing blocks 321, and adjacent two annular fixing blocks 321 are connected by a spring 322. One end of the sealing plug-in 31 is connected to the annular fixing block 321. In a specific case, the annular elastic body 32 includes 4 annular fixing blocks 321 evenly arranged in the circumferential direction, and adjacent two annular fixing blocks 321 are connected by a spring 322. The contraction of the spring 322 is utilized to achieve the radial contraction of the annular elastic body 32.

[0060] Among them, the sealing plug-in 31 is a block that can be inserted into close contact with the inner wall of the through groove 11. For example, it can be a rectangular plate or other structures. Specifically, in this embodiment, in order to make the sealing plug-in 31 easier to insert into the soil, the sealing plug-in 31 includes a sealing section 311. One end of the sealing section 311 is connected to the annular fixing block 321 of the annular elastic body 32, and the other end is connected to the insertion section 312. The sealing section 311 is slidably disposed within the through groove 11 and is always in close contact with the inner wall of the through groove 11; the specific shape of the sealing section 311 is a square plate, and the insertion section 312 is an arc-shaped structure. Compared with the flat end of the square plate, the sealing plug-in 31 has a smaller contact area when inserted into the soil, which is conducive to inserting into the soil. Preferably, the thickness of the insertion section 312 is less than or equal to the thickness of the sealing section 311, that is, by reducing the thickness of the insertion section 312 and cooperating with the design of the arc-shaped structure, the contact area with the soil is further reduced, which is more conducive to inserting into the soil.

[0061] The adjusting push rod 2 is arranged in the cylindrical shell 1, and the annular elastic body 32 is contracted by its vertical displacement in the cylindrical shell 1; in a specific case, the adjusting push rod 2 includes a vertical rod 21, and the outer wall of the vertical rod 21 is provided with a reducing section, and the radial width of the reducing section tends to gradually decrease from top to bottom. The reducing section is displaced up and down in the annular elastic body 32 to achieve the contraction of the annular elastic body 32. When the adjusting push rod 2 moves downward, the radial width of the reducing section can be increased to make the annular elastic body 32 expand radially outward, thereby realizing the pushing of the sealing plug 31 out of the through groove. 11, so that the end of the sealing plug 31 away from the annular elastic body 32 is inserted into the soil, so that the settlement monitoring device and the soil are integrated into a structure, which is conducive to improving the accuracy of settlement monitoring; when the adjusting push rod 2 moves upward, as the radial width of the variable diameter section inside the annular elastic body 32 gradually decreases, the annular elastic body 32 slowly retracts. Even if the sealing plug 31 is retracted into the through groove, the external shape of the entire settlement monitoring device is a cylinder with a smooth arc surface. Compared with other angular shapes, it has less friction with the soil, which is conducive to pulling the settlement monitoring device out of the soil. When the sealing plug 31 is retracted into the through groove, the annular elastic body 32 can be in a natural state, that is, the spring 322 is in a natural state at this time; the annular elastic body 32 can also be in a slightly expanded state under the support of the vertical rod 21. At this time, it can avoid the excessive retraction of the annular elastic body 32 due to the failure of the spring 322, which in turn causes the sealing plug 31 to move inward into the cylindrical shell 1 and detach from the through groove.

[0062] In a specific case, the variable diameter section is composed of multiple circumferentially arranged adjustment plates 22, the radial width of the adjustment plates 22 gradually decreases from top to bottom, the adjustment plates 22 correspond one-to-one to the annular fixing blocks 321, and the annular fixing blocks 321 correspond one-to-one to the sealing plug-in 31.

[0063] In a specific implementation, the adjusting push rod 2 can be connected to an external lifting mechanism to achieve vertical displacement of the adjusting push rod 2. Specifically, the adjusting push rod 2 can be hoisted into the cylindrical housing 1, and the end cover is installed. The vertical rod 21 is installed through the end cover, and the end of the vertical rod 21 that extends out of the end cover is connected to the external lifting mechanism. Alternatively, a sliding mechanism is provided on the inner wall of the cylindrical housing 1, and the adjusting push rod 2 is slidably mounted on the sliding mechanism. The sliding mechanism can be any existing technology, such as a linear guide or a screw transmission mechanism.

[0064] The monitoring component is disposed within the columnar housing 1 and is used to monitor whether the ground subsides. The monitoring component is any existing combination of sensors capable of achieving ground subsidence monitoring, specifically, it can be a displacement sensor or the like. In a specific implementation, a monitoring chamber 13 for placing the monitoring component is provided on the side wall of the columnar housing 1, or a partition 4 is provided within the columnar housing 1. The partition 4 divides the interior of the columnar housing 1 into an adjustment chamber 12 and a monitoring chamber 13, and the elastic adjustment member 3 and the adjustment push rod 2 are disposed within the adjustment chamber 12.

[0065] The method of using the settlement monitoring device of this embodiment includes the following steps:

[0066] S1. Select the settlement monitoring points on the ground where the deep-buried type anchor plug body arch seat is excavated, and drill round holes at each settlement monitoring point. The diameter of the round hole is slightly larger than the outer diameter of the columnar housing 1, and the gap between the round hole and the columnar housing 1 is smaller than the maximum extended distance of the sealing plug 31;

[0067] S2. Hoist the settlement monitoring device of this embodiment into the round hole, and then operate to move the adjustment push rod 2 downward, so that the annular elastic body 32 gradually expands radially outward, and the sealing plug 31 gradually moves out of the through groove 11 and inserts into the soil body; use the monitoring component to monitor the ground settlement during the excavation of the deep-buried type anchor plug body arch seat;

[0068] S3. After the excavation of the deep-buried type anchor plug body arch seat is completed, operate to move the adjustment push rod 2 upward, so that the annular elastic body 32 gradually contracts radially inward, and the sealing plug 31 gradually moves out of the soil body and into the through groove 11, making the overall shape of the settlement monitoring device a cylinder with a smooth arc surface. Then operate the external lifting device to lift the settlement monitoring device upward and pull the settlement monitoring device out of the soil body. After cleaning the soil on the surface of the settlement monitoring device, it can be recycled.

[0069] In summary, in this embodiment, by providing the mutually cooperating elastic adjustment member 3 and the adjustment push rod 2 within the columnar housing 1, wherein the adjustment push rod 2 realizes the expansion or retraction of the elastic adjustment member 3 in its radial direction through vertical displacement, thereby realizing that one end of the sealing plug 31 far from the annular elastic body 32 protrudes from the columnar housing 1 and inserts into the soil body or one end of the sealing plug 31 far from the annular elastic body 32 retracts into the through groove 11, and there is always no gap between the outer wall of the sealing plug 31 and the inner wall of the through groove 11; it can realize that one end of the sealing plug 31 far from the annular elastic body 32 inserts into the soil body during monitoring, enabling the settlement monitoring device to subside together with the soil body, improving the measurement accuracy of the settlement monitoring device, and being able to pull the settlement monitoring device out of the soil body after the excavation of the deep-buried type anchor plug body arch seat is completed, realizing recycling.

[0070] When the monitoring depth is relatively deep, in order to improve the measurement accuracy, multiple settlement monitoring devices can be arranged from bottom to top in the same round hole. Multiple settlement monitoring devices share the same settlement monitoring point, which can not only improve the monitoring accuracy, but also make it easier to pull out the settlement monitoring device with a shorter length compared to the settlement monitoring device with a very long overall length.

[0071] Embodiment 2:

[0072] As Figures 1 - 7 shown, in order to better realize the insertion of the sealing plug 31 into the soil body and the pulling out of the settlement monitoring device, this embodiment optimizes the design of the sealing plug 31:

[0073] The sealing plug 31 of this embodiment has a cavity inside, and a liquid inlet pipe 33 communicating with the cavity is arranged on the sealing plug 31; the liquid inlet pipe 33 is used to introduce water or lubricant into the cavity; specifically, the liquid inlet pipe 33 can be connected to the external water supply end and lubricant supply end through a hose. In a specific case, there are multiple sealing plugs 31 on the elastic adjusting member 3, and each sealing plug 31 is provided with a liquid inlet pipe 33, and the liquid inlet pipes 33 correspond to the hoses one by one. Two liquid inlet rings are arranged on the ground, and each liquid inlet ring is provided with multiple liquid outlet ports. One hose is connected to one liquid outlet port, and the hose and the liquid outlet port are detachably connected, which can be directly realized by the elasticity of the hose. The two liquid inlet rings are respectively connected to the external water supply end and lubricant supply end through their respective liquid inlet ports. When it is necessary to introduce water into the cavity, connect each hose to the liquid inlet ring providing water. When it is necessary to introduce lubricant into the cavity, connect each hose to the liquid inlet ring providing lubricant;

[0074] Several through holes 3123 communicating with the cavity are arranged on the part of the sealing plug 31 protruding from the columnar housing 1; such a design can not only realize the export of water or lubricant from the cavity through the through holes 3123, but also prevent water or lubricant from entering the through groove 11 or even the columnar housing 1.

[0075] In this embodiment, water can be introduced into the cavity through the liquid inlet pipe 33, and the water is exported through the through holes 3123 to wet the soil body, reducing the soil hardness and facilitating the smooth insertion of the sealing plug 31 into the soil body; when the excavation of the deep-buried anchor plug body arch seat is completed, lubricant can be introduced into the cavity through the liquid inlet pipe 33 to reduce the friction between the settlement monitoring device and the soil body when pulling out the settlement monitoring device, which is beneficial to pulling out the settlement monitoring device.

[0076] In a preferred case, the sealing plug 31 includes a sealing section 311. One end of the sealing section 311 is connected to the annular fixing block 321 of the annular elastic body 32, and the other end is connected to the insertion section 312. The sealing section 311 is slidably arranged in the through groove 11, and the sealing section 311 is always in close contact with the inner wall of the through groove 11; the specific shape of the sealing section 311 is a square plate, and the insertion section 312 is an arc-shaped structure, as Figure 5As shown, the end of the insertion section 312 away from the sealing section 311 is a curved surface structure, and the end connected to the sealing section 311 is a planar structure. In this embodiment, it is connected to the square plate through the planar structure, and the end surface of the square plate at the connection has the same shape and area as the planar structure. Preferably, the thickness of the insertion section 312 is less than or equal to the thickness of the sealing section 311.

[0077] Example 3:

[0078] This embodiment is based on embodiment 2. In this embodiment, the sealing section 311 and the insertion section 312 are detachably connected, the cavity in the sealing section 311 is connected to the cavity in the insertion section 312, the through hole 3123 is provided on the side wall of the insertion section 312, and a filter element 34 is provided on the inner side of the insertion section 312. The filter element 34 can be a filter cloth or a filter membrane, etc.

[0079] In one specific example, the sealing section 311 includes a sealing body 3112, which is a square plate with a cavity. One end of the sealing body 3112 is connected to the annular fixing block 321 via a connecting block 3111. The liquid inlet pipe 33 is provided on the top of the sealing body 3112, near the connecting block 3111. The sealing body 3112 is slidably disposed in the through groove 11 and is always in close contact with the inner wall of the through groove 11, i.e., there is no gap between the outer wall of the sealing body 3112 and the interior of the through groove 11.

[0080] A support frame 3113 for covering the filter element 34 is provided at one end of the sealing body 3112 away from the annular elastomer 32; when in use, the filter element 34 can be first covered on the support frame 3113, and then the sealing section 311 is connected to the insertion section 312. The setting of the support frame 3113 facilitates the installation of the filter element 34 and can improve the stability of the filter element 34 during use.

[0081] In a specific case, the insertion section 312 includes an insertion plate 3121, the outer wall of the insertion plate 3121 is provided with several through holes 3123, the insertion plate 3121 is an arc-shaped structure and the thickness of the insertion plate 3121 is equal to the thickness of the sealing section 311, a positioning block 3124 is provided at one end of the insertion plate 3121, and a slot matching the positioning block 3124 is provided at the end of the sealing body 3112.

[0082] Preferably, Figure 6 、 Figure 7 As shown, to facilitate insertion of the insertion section 312 into the soil, the outer wall of the insertion plate 3121 is provided with a guide piece 3122. The thickness of the guide piece 3122 is less than that of the insertion plate 3121. Taking advantage of the smaller thickness of the guide piece 3122, the insertion into the soil is facilitated. The guide piece 3122 can have the same profile as the insertion plate 3121.

[0083] Example 4:

[0084] This embodiment is based on Embodiment 1, and the difference from Embodiment 1 lies in that: the structure of the diameter-changing section is different. In this embodiment, the diameter-changing section is a frustum structure with a central through-hole; the outer diameter of the frustum structure gradually decreases from top to bottom, and the frustum structure and the vertical rod 21 are integrally formed structures.

[0085] The above specific implementation manners have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific implementation manners of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0086] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the present invention to be implemented. Therefore, they do not have technical substantial significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the present invention to be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

Claims

1. A ground settlement monitoring device for the excavation of a deeply buried anchor plug arch seat, characterized in that, Comprising: A columnar housing (1) with a plurality of through grooves (11) provided on its side wall; An elastic adjusting member (3) disposed within the columnar housing (1), which includes a sealing plug-in (31) and an annular elastic body (32). The annular elastic body (32) can contract along its radial direction. One end of the sealing plug-in (31) is connected to the annular elastic body (32), and it is slidably disposed within the through groove (11), and the outer wall of the sealing plug-in (31) is in close contact with the inner wall of the through groove (11). When the annular elastic body (32) expands outward, the end of the sealing plug-in (31) protrudes from the columnar housing (1); An adjusting push rod (2) disposed within the columnar housing (1), and the contraction of the annular elastic body (32) is achieved by its vertical displacement within the columnar housing (1); A monitoring assembly disposed within the columnar housing (1) for monitoring whether the ground subsides; The sealing plug-in (31) has a cavity therein, and a liquid inlet pipe (33) communicating with the cavity is provided on the sealing plug-in (31); the liquid inlet pipe (33) is used to introduce water or lubricant into the cavity; A number of through holes (3123) communicating with the cavity are provided on the part of the sealing plug-in (31) protruding from the columnar housing (1); The sealing plug-in (31) includes a sealing section (311), one end of the sealing section (311) is connected to the annular elastic body (32), and the other end is connected to an insertion section (312). The sealing section (311) is slidably disposed within the through groove (11), and the sealing section (311) is always in close contact with the inner wall of the through groove (11); The insertion section (312) has an arc-shaped structure and the thickness of the insertion section (312) is less than or equal to the thickness of the sealing section (311); When the sealing section (311) retracts into the through groove (11), the annular elastic body (32) is in a slightly expanded state under the support of the adjusting push rod (2); A partition (4) is provided within the columnar housing (1), and the partition (4) divides the interior of the columnar housing (1) into an adjustment chamber (12) and a monitoring chamber (13). The elastic adjusting member (3) and the adjusting push rod (2) are disposed within the adjustment chamber (12).

2. The ground settlement monitoring device for the excavation of a deeply buried anchor plug arch seat according to claim 1, characterized in that The annular elastic body (32) at least includes two circumferentially arranged annular fixing blocks (321), and adjacent two of the annular fixing blocks (321) are connected by a spring (322), and one end of the sealing plug-in (31) is connected to the annular fixing block (321).

3. The ground settlement monitoring device for the excavation of the deep-buried anchor plug body arch seat according to claim 1, characterized in that, The sealing section (311) and the insertion section (312) are detachably connected, the cavity within the sealing section (311) communicates with the cavity within the insertion section (312), the through holes (3123) are provided on the side wall of the insertion section (312), and a filter element (34) is provided on the inner side of the insertion section (312).

4. The ground settlement monitoring device for the excavation of a deep-buried anchor plug arch seat according to claim 3, characterized in that, The sealing section (311) includes a sealing body (3112); the sealing body (3112) is slidably disposed within the through groove (11), and the sealing body (3112) is always in close contact with the inner wall of the through groove (11); A support skeleton (3113) for covering the filter element (34) is provided at one end of the sealing body (3112) away from the annular elastic body (32).

5. The ground settlement monitoring device for the excavation of a deep-buried anchor plug arch seat according to claim 1, characterized in that, The insertion section (312) includes an insertion plate (3121), the insertion plate (3121) has an arc-shaped structure and the thickness of the insertion plate (3121) is equal to the thickness of the sealing section (311), and guide pieces (3122) are arranged on the outer wall of the insertion plate (3121), and the thickness of the guide pieces (3122) is less than the thickness of the insertion plate (3121).

6. The ground settlement monitoring device for the excavation of the deeply buried anchor plug body arch seat according to claim 1, characterized in that, The adjusting push rod (2) includes a vertical rod (21), and a diameter-changing section is arranged on the outer wall of the vertical rod (21), and the shrinkage of the annular elastic body (32) is realized by the up-and-down displacement of the diameter-changing section in the annular elastic body (32).

7. The ground settlement monitoring device for the excavation of the deep-buried anchor plug arch seat according to claim 6, characterized in that, The diameter-changing section is a frustum structure with a central through hole or is composed of a plurality of adjusting plates (22) arranged circumferentially, and the radial width of the adjusting plates (22) gradually decreases from top to bottom; A sliding mechanism is arranged on the inner wall of the columnar housing (1), and the adjusting push rod (2) is slidably arranged on the sliding mechanism.

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