Deeply-buried anchor body skewback excavation ground subsidence monitoring device

Abstract

The invention relates to the technical field of settlement monitoring, and particularly discloses a deeply-buried anchor body skewback excavation ground settlement monitoring device, which comprises a columnar shell, a plurality of anchor bodies, a plurality of anchor bodies, a plurality of anchor bodies, a plurality of anchor bodies and a plurality of anchor bodies, and the side wall of the columnar shell is provided with a plurality of through grooves; the elastic adjusting piece is arranged in the columnar shell and comprises a sealing insertion piece and an annular elastic body, the annular elastic body can contract in the radial direction of the annular elastic body, one end of the sealing insertion piece is connected with the annular elastic body and arranged in the through groove in a sliding mode, and the outer wall of the sealing insertion piece is in close contact with the inner wall of the through groove; the end part of the sealing plug-in unit protrudes out of the columnar shell; the adjusting push rod is arranged in the columnar shell, and contraction of the annular elastic body is achieved through vertical displacement of the adjusting push rod in the columnar shell; the monitoring assembly is arranged in the columnar shell and used for monitoring whether the ground is settled or not. The device not only can realize settlement monitoring in the ground excavation process, but also can be repeatedly used.

Description

Technical Field

[0001] The invention relates to the technical field of settlement monitoring, and in particular to a ground settlement monitoring device for excavating a deep-buried anchor body arch seat. Background Art

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

[0003] When building a super-large bridge in a mountainous area, it is necessary to first construct the anchor arch at the tunnel exit, and then complete the construction of the super-large bridge based on the anchor arch through a cable hoisting system. When constructing the anchor arch, it is necessary to excavate the ground at the tunnel exit to a certain depth, and then construct the anchor arch.

[0004] Settlement monitoring during ground excavation can monitor the ground settlement during excavation in real time, provide data support for project stability assessment, and ensure construction safety.

[0005] The settlement monitoring during the ground excavation process is 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 deep-buried anchor body arch seat excavation ground settlement monitoring device, which can not only realize the settlement monitoring during the ground excavation process, but also can be reused.

[0007] The present invention is achieved through the following technical solutions: A ground settlement monitoring device for deep-buried anchor body arch seat excavation, comprising: A cylindrical housing, with a plurality of through slots disposed on its side wall; The elastic adjustment member is arranged in the cylindrical housing, and includes a sealing plug-in and an annular elastic body. The annular elastic body can shrink in its radial direction. One end of the sealing plug-in is connected to the annular elastic body and is slidably arranged in the through groove. The outer wall of the sealing plug-in is in close contact with the inner wall of the through groove. When the annular elastic body expands outward, the end of the sealing plug-in away from the annular elastic body protrudes from the cylindrical housing. When the annular elastic body is in a natural state or in a state of inward retraction, the end of the sealing plug-in away from the annular elastic body is placed in the through groove. An adjusting push rod is disposed in the cylindrical housing and realizes the contraction of the annular elastic body by vertically displacing the adjusting push rod in the cylindrical housing; The monitoring component is arranged in the columnar shell and is used to monitor whether the ground is sinking.

[0008] The monitoring component of the present invention is any existing sensor combination that can realize ground subsidence monitoring.

[0009] The present invention adopts a columnar shell as a supporting component of the monitoring device, and the outer wall of the columnar shell is a smooth arc surface, which is convenient for inserting or removing the monitoring device into the soil.

[0010] The present invention utilizes the radial contraction function of the annular elastomer to realize the radial displacement of the sealing plug-in, and the radial displacement of the sealing plug-in can realize that the end of the sealing plug-in away from the annular elastomer protrudes from the columnar shell or retracts into the through groove. When the end of the sealing plug-in away from the annular elastomer protrudes from the columnar shell, the end of the sealing plug-in away from the annular elastomer is inserted into the soil, which can realize the connection between the settlement monitoring device and the soil. When the deep-buried anchor body arch seat is excavated, if the ground settles, the settlement monitoring device can settle together with the soil, thereby providing the accuracy of settlement monitoring; when the end of the sealing plug-in away from the annular elastomer is retracted into the through groove, the columnar shell is in direct contact with the soil. Since the outer wall of the columnar shell is a smooth arc surface, it is convenient to pull the settlement monitoring device out of the soil by external force to achieve recycling.

[0011] In summary, the present invention can not only realize settlement monitoring during ground excavation, but also can be reused.

[0012] Furthermore, the structure of the elastic adjustment member provided in the present invention can ensure that the sealing plug-in is always in close contact with the through groove during radial movement, that is, there is always no gap between the outer wall of the sealing plug-in and the inner wall of the through groove, which can prevent mud in the soil from entering the through groove or the columnar shell during the monitoring process, thereby affecting the radial displacement of the sealing plug-in or the radial contraction of the annular elastomer.

[0013] In a preferred embodiment, the annular elastic body includes at least two annular fixing blocks arranged circumferentially, two adjacent annular fixing blocks are connected via a spring, and one end of the sealing plug-in is connected to the annular fixing block.

[0014] In a preferred embodiment, the sealing plug-in has a cavity inside, and the sealing plug-in is provided with a liquid inlet pipe connected to the cavity; the liquid inlet pipe is used to introduce water or lubricant into the cavity; The portion of the sealing plug-in protruding from the columnar housing is provided with a plurality of through holes communicating with the cavity.

[0015] The above arrangement facilitates the insertion of the sealing plug into the soil and facilitates the extraction of the settlement monitoring device from the soil: When the soil is relatively dry and dense, it is difficult to insert the sealing plug into the soil through the radial thrust provided by the radial expansion of the annular elastomer. At this time, 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, reduce the hardness of the soil, and facilitate the smooth insertion of the sealing plug into the soil.

[0016] When the excavation of the deep-buried anchor arch is completed, lubricant can be introduced into the cavity through the liquid inlet pipe, and the lubricant can be discharged to the outer wall of the columnar shell through the through hole. The lubricating function of the lubricant can be used to reduce the friction between the settlement monitoring device and the soil, which is conducive to the removal of the settlement monitoring device.

[0017] In a preferred embodiment, the sealing plug-in includes a sealing section, one end of which 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. The inserting section is an arc-shaped structure and the thickness of the inserting section is less than or equal to the thickness of the sealing section.

[0018] Compared with a flat plate with a flat end, the insertion section with the arc-shaped structure has a smaller contact area with the soil during insertion, which is more conducive to the insertion of the insertion section into the soil.

[0019] In a preferred embodiment, the sealing section and the inserting section are detachably connected, the cavity in the sealing section is connected to the cavity in the inserting section, the through hole is arranged on the side wall of the inserting section, and a filter is arranged inside the inserting section.

[0020] The setting of the above-mentioned filter element cooperates with the through hole, which can not only realize the discharge of water or lubricant in the cavity to the outside of the cavity, but also prevent the mud in the soil from entering the cavity and causing blockage. Some of the mud attached to the outer wall of the insertion section can be directly cleaned when the settlement monitoring device is pulled out.

[0021] In a preferred embodiment, 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; One end of the sealing body away from the annular elastic body is provided with a supporting frame for covering the filter element.

[0022] In a preferred embodiment, the insertion section includes an insertion plate, which is an arc-shaped structure and has a thickness equal to that of the sealing section. A guide plate is provided on the outer wall of the insertion plate, and the thickness of the guide plate is less than that of the insertion plate.

[0023] In a preferred embodiment, the adjusting push rod comprises a vertical rod, and a diameter-changing section is arranged on the outer wall of the vertical rod, and 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.

[0024] In a preferred embodiment, the diameter-changing 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; The inner wall of the columnar shell is provided with a sliding mechanism, and the adjusting push rod is slidably arranged on the sliding mechanism.

[0025] The arrangement of the sliding mechanism can not only realize the connection between the adjusting push rod and the columnar housing, but also realize the vertical displacement of the adjusting push rod in the columnar housing.

[0026] 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 member and the adjustment push rod are arranged in the adjustment chamber.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention arranges mutually cooperating elastic adjusting parts and adjusting push rods in a cylindrical shell, wherein the adjusting push rod realizes the contraction (expansion or retraction) of the elastic adjusting parts in the radial direction through vertical displacement, thereby realizing that the end of the sealing plug-in away from the annular elastic body protrudes out of the cylindrical shell and is inserted into the soil body, or the end of the sealing plug-in away from the annular elastic body is retracted into the through groove, and there is always no gap between the outer wall of the sealing plug-in and the inner wall of the through groove; during monitoring, the end of the sealing plug-in away from the annular elastic body is inserted into the soil body, so that the settlement monitoring device settles together with the soil body, thereby improving the measurement accuracy of the settlement monitoring device, and after the excavation of the arch seat of the deep-buried anchor plug body is completed, the settlement monitoring device can be pulled out of the soil body for recycling.

[0028] 2. The sealing plug-in of the present invention has a cavity inside, 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 wet the soil, thereby reducing the hardness of the soil and facilitating the smooth insertion of the sealing plug into the soil; when the excavation of the arch seat of the deep-buried anchor plug body 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

[0029] 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: Figure 1 It is a longitudinal cross-sectional view of the initial state of the ground settlement monitoring device for deep-buried anchor body arch seat excavation according to Example 1 of the present invention; Figure 2 It is a transverse cross-sectional view of the initial state of the ground settlement monitoring device for deep-buried anchor body arch seat excavation according to Example 1 of the present invention; Figure 3 It is a longitudinal cross-sectional view of the monitoring state of the ground settlement monitoring device for excavating the deep-buried anchor body arch seat according to Example 1 of the present invention; Figure 4 It is a transverse cross-sectional view of the monitoring state of the ground settlement monitoring device for excavating the deep-buried anchor body arch seat according to Example 1 of the present invention; Figure 5 This is a schematic diagram of the connection between the elastic adjustment member and the columnar housing in Example 1 of the present invention; Figure 6 This is a schematic diagram of the structure of the sealing plug-in in Example 2 of the present invention; Figure 7 This is a schematic diagram of the structure of the insertion segment in Example 2 of the present invention.

[0030] Marks and corresponding parts names in the attached drawings: 1-columnar housing; 2-adjusting push rod; 3-elastic adjusting member; 4-partition; 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-supporting frame; 3121-insertion plate; 3122-guide plate; 3123-through hole; 3124-positioning block. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. The schematic implementation mode of the present invention and its description are only used to explain the present invention and are not intended to limit the present invention. The embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0032] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those of ordinary skill in the art that these specific details do not have to be employed to practice the present invention. In other embodiments, in order to avoid confusing the present invention, known structures, materials or methods are not specifically described. The materials, instruments and reagents used in the following examples, unless otherwise specified, can be obtained from commercial sources. The technical means used in the examples, unless otherwise specified, are conventional means well known to those skilled in the art.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Embodiment 1: In order to monitor the ground settlement of deep-buried anchor body arch seat excavation, and to achieve the repeated use of monitoring devices, such as Figure 1-Figure 5 As shown, this embodiment is a ground settlement monitoring device for deep-buried anchor body arch seat excavation, comprising: The cylindrical shell 1 has a plurality of through grooves 11 on its side wall; the cylindrical shell 1 serves as a supporting component for the entire settlement monitoring device, and other components can be installed in the cylindrical shell 1. The outer wall of the cylindrical shell is a smooth arc surface. Compared with a square or other angular shapes, the cylindrical shell is more conducive to inserting or removing the monitoring device into or out of the soil.

[0035] Among them, multiple through grooves 11 can be arranged in the same circumference or different circumferences. In a specific case, the side wall of the cylindrical shell 1 is provided with 8 through grooves 11, every 4 through grooves 11 are arranged in the same circumference, and the 4 through grooves 11 in the same circumference are evenly arranged in the circumference.

[0036] In a specific case, the top of the columnar shell 1 is an open end, which is convenient for installing other components in the columnar shell 1, and a detachable end cover is provided on the top of the columnar shell 1, and a lifting ring connected to an external lifting mechanism is provided on the end cover.

[0037] The elastic adjustment member 3 is arranged in the cylindrical shell 1, and includes a sealing plug-in 31 and an annular elastic body 32. The annular elastic body 32 can shrink along its radial direction. One end of the sealing plug-in 31 is connected to the annular elastic body 32 and is slidably arranged in the through groove 11. 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 cylindrical shell 1; when the annular elastic body 32 is in a natural state or in an inwardly retracted state, the end of the sealing plug-in 31 away from the annular elastic body 32 is placed in the through groove 11.

[0038] The annular elastic body 32 includes at least two annular fixing blocks 321 arranged in the circumferential direction, two adjacent annular fixing blocks 321 are connected by a spring 322, and one end of the sealing plug 31 is connected to the annular fixing block 321. In a specific case, the annular elastic body 32 includes four annular fixing blocks 321 evenly arranged in the circumferential direction, two adjacent annular fixing blocks 321 are connected by a spring 322, and the contraction of the annular elastic body 32 in the radial direction is achieved by using the contraction of the spring 322.

[0039] Among them, the sealing plug-in 31 is a block that can be inserted into the inner wall of the through groove 11 and in close contact, 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 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. Compared with the flat end of the square plate, the arc-shaped structure has a smaller contact area when the sealing plug-in 31 is 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, the design of the arc structure further reduces the contact area with the soil, which is more conducive to inserting into the soil.

[0040] The adjusting push rod 2 is arranged in the cylindrical shell 1, and the contraction of the annular elastic body 32 is achieved 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 contraction of the annular elastic body 32 is achieved by the up and down displacement of the reducing section in 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 outward along its radial direction, thereby achieving the goal of pushing the sealing plug-in 31 out of the through groove. 11, so that the end of the sealing plug-in 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 on the inner side of the annular elastic body 32 gradually decreases, the annular elastic body 32 slowly retracts, even if the sealing plug-in 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-in 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 causes the sealing plug-in 31 to move inward into the columnar shell 1 and detach from the through groove.

[0041] In a specific case, the variable diameter section is composed of a plurality of 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.

[0042] In 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 columnar housing 1, the end cover is covered, and the vertical rod 21 is passed through the end cover, and one end of the vertical rod 21 passing through the end cover is connected to the external lifting mechanism. Alternatively, a sliding mechanism is provided on the inner wall of the columnar housing 1, and the adjusting push rod 2 is slidably provided on the sliding mechanism; the sliding mechanism is any existing technology, and can be an existing technology such as a linear guide or a screw transmission mechanism.

[0043] The monitoring component is arranged in the columnar housing 1 and is used to monitor whether the ground has settled. The monitoring component is any existing sensor combination that can realize ground settlement monitoring, and can be a displacement sensor, etc. In a specific implementation, the side wall of the columnar housing 1 is provided with a monitoring compartment 13 for placing the monitoring component, or a partition 4 is provided in the columnar housing 1, and the partition 4 separates the columnar housing 1 into an adjustment compartment 12 and a monitoring compartment 13, and the elastic adjustment member 3 and the adjustment push rod 2 are arranged in the adjustment compartment 12.

[0044] The method for using the settlement monitoring device of this embodiment includes the following steps: S1, select the settlement monitoring points of the ground excavated by the deep-buried anchor body arch seat, and drill circular holes at each settlement monitoring point, the aperture of the circular hole is slightly larger than the outer diameter of the cylindrical shell 1, and the gap between the circular hole and the cylindrical shell 1 is smaller than the maximum extension distance of the sealing plug 31; S2. The settlement monitoring device of this embodiment is hoisted into the circular hole, and then the adjusting push rod 2 is operated to move downward, so that the annular elastic body 32 gradually expands outward along its radial direction, and the sealing plug 31 gradually moves out of the through groove 11 and inserts into the soil; the monitoring component is used to monitor the ground settlement during the excavation of the deep-buried anchor body arch seat; S3. After the excavation of the deep-buried anchor body arch seat is completed, the adjusting push rod 2 is operated to move upward, so that the annular elastic body 32 gradually shrinks inward along its radial direction, and the sealing plug 31 gradually moves out of the soil and enters the through groove 11, so that the overall outer part of the settlement monitoring device forms a cylinder with a smooth arc surface, and then the external lifting device is operated to pull the settlement monitoring device upward, pull the settlement monitoring device out of the soil, and after cleaning the soil on the surface of the settlement monitoring device, it can be recycled.

[0045] In summary, this embodiment arranges mutually cooperating elastic adjusting member 3 and adjusting push rod 2 in the cylindrical shell 1, wherein the adjusting push rod 2 realizes expansion or retraction of the elastic adjusting member 3 in its radial direction through vertical displacement, thereby realizing that the end of the sealing plug 31 away from the annular elastomer 32 protrudes out of the cylindrical shell 1 and is inserted into the soil body, or the end of the sealing plug 31 away from the annular elastomer 32 is retracted 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; during monitoring, the end of the sealing plug 31 away from the annular elastomer 32 can be inserted into the soil body, so that the settlement monitoring device can settle together with the soil body, 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 body for recycling.

[0046] When the monitoring depth is deeper, in order to improve the measurement accuracy, multiple settlement monitoring devices can be arranged from bottom to top in the same circular hole. Multiple settlement monitoring devices at the same settlement monitoring point can not only improve the monitoring accuracy, but also make the settlement monitoring device with a shorter length easier to pull out compared to the settlement monitoring device with a very long overall length.

[0047] Embodiment 2: like Figure 1-Figure 7 As shown, in order to better realize the insertion of the sealing plug 31 into the soil and the extraction of the settlement monitoring device, the sealing plug 31 is optimized in this embodiment: The sealing plug-in 31 of the present embodiment has a cavity inside, 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; specifically, the liquid inlet pipe 33 can be connected to the external water supply end and the lubricant supply end through a hose. In a specific case, the elastic adjusting member 3 has a plurality of sealing plug-ins 31, and each sealing plug-in 31 is provided with a liquid inlet pipe 33, and the liquid inlet pipe 33 corresponds to the hose one by one, and two liquid inlet rings are provided on the ground, each of which is provided with a plurality of liquid outlets, and one hose is connected to one liquid outlet, and the hose and the liquid outlet are detachably connected, which can be directly realized by the elasticity of the hose, and the two liquid inlet rings are respectively connected to the external water supply end and the lubricant supply end through their respective liquid inlets. When water needs to be introduced into the cavity, each hose is connected to the liquid inlet ring that provides water, and when lubricant needs to be introduced into the cavity, each hose is connected to the liquid inlet ring that provides lubricant; The portion of the sealing plug 31 protruding from the cylindrical shell 1 is provided with a plurality of through holes 3123 connected to the cavity; such a design can not only realize the conduction of water or lubricant out of the cavity through the through holes 3123, but also prevent water or lubricant from entering the through groove 11 or even the cylindrical shell 1.

[0048] In this embodiment, water can be introduced into the cavity through the liquid inlet pipe 33, and the water can be discharged through the through hole 3123 to wet the soil, reduce the hardness of the soil, and facilitate the smooth insertion of the sealing plug 31 into the soil; when the excavation of the deep-buried anchor plug arch seat is completed, a 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 when the settlement monitoring device is pulled out, which is conducive to the removal of the settlement monitoring device.

[0049] 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 a circular arc structure, such 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.

[0050] Embodiment 3: 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 arranged on the side wall of the insertion section 312, and a filter element 34 is arranged on the inner side of the insertion section 312. The filter element 34 can be a filter cloth or a filter membrane, etc.

[0051] In a specific case, the sealing section 311 includes a sealing body 3112, which is a square plate with a cavity, and one end of the sealing body 3112 is connected to the annular fixing block 321 through a connecting block 3111, and the liquid inlet pipe 33 is arranged on the top of the sealing body 3112 near the connecting block 3111; the sealing body 3112 is slidably arranged in the through groove 11, and the sealing body 3112 is always in close contact with the inner wall of the through groove 11, that is, there is no gap between the outer wall of the sealing body 3112 and the inside of the through groove 11; 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.

[0052] In a specific case, the insertion section 312 includes an insertion plate 3121, the outer wall of the insertion plate 3121 is provided with a plurality of 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.

[0053] Preferably, Figure 6 , Figure 7 As shown, in order to facilitate the 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 the thickness of the insertion plate 3121, and the guide piece 3122 is used to facilitate insertion into the soil. The guide piece 3122 can have the same profile as the insertion plate 3121.

[0054] Embodiment 4: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that: the structure of the diameter-changing section is different. In this embodiment, the diameter-changing section is a truncated cone structure with a central through hole; the outer diameter of the truncated cone structure gradually decreases from top to bottom, and the truncated cone structure and the vertical rod 21 are an integrally formed structure.

[0055] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0056] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

Claims

1. A ground settlement monitoring device for deep-buried anchor body arch seat excavation, characterized in that: include: A cylindrical housing (1), with a plurality of through slots (11) provided on its side wall; an elastic adjustment member (3) disposed in the columnar housing (1), comprising a sealing plug-in (31) and an annular elastic body (32); the annular elastic body (32) is capable of contracting in its radial direction; one end of the sealing plug-in (31) is connected to the annular elastic body (32) and is slidably disposed in the through groove (11); an outer wall of the sealing plug-in (31) is in close contact with an inner wall of the through groove (11); when the annular elastic body (32) expands outward, an end of the sealing plug-in (31) protrudes from the columnar housing (1); An adjusting push rod (2) is disposed in the columnar housing (1) and is used to achieve contraction of the annular elastic body (32) by vertically displacing the adjusting push rod in the columnar housing (1); A monitoring component is arranged in the columnar housing (1) and is used to monitor whether the ground has settled.

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

3. The device for monitoring ground subsidence during excavation of a deep-buried anchor body arch seat according to claim 1, characterized in that: The sealing plug-in (31) has a cavity therein, and the sealing plug-in (31) is provided with a liquid inlet pipe (33) connected to the cavity; the liquid inlet pipe (33) is used to introduce water or lubricant into the cavity; The portion of the sealing plug-in unit (31) protruding from the columnar housing (1) is provided with a plurality of through holes (3123) communicating with the cavity.

4. A ground settlement monitoring device for deep-buried anchor body arch excavation according to claim 1 or 3, characterized in that: The sealing plug-in (31) comprises 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 the insertion section (312), the sealing section (311) is slidably disposed 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 insertion section (312) is 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).

5. A ground settlement monitoring device for deep-buried anchor body arch excavation according to claim 4, characterized in that: The sealing section (311) and the insertion section (312) are detachably connected, the cavity in the sealing section (311) is in communication with the cavity in the insertion section (312), the through hole (3123) is arranged on the side wall of the insertion section (312), and a filter element (34) is arranged on the inner side of the insertion section (312).

6. A ground settlement monitoring device for deep-buried anchor body arch excavation according to claim 5, characterized in that: The sealing section (311) comprises a sealing body (3112); the sealing body (3112) is slidably disposed in 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 frame (3113) for covering the filter element (34) is provided at one end of the sealing body (3112) away from the annular elastic body (32).

7. A ground settlement monitoring device for deep-buried anchor body arch excavation according to claim 4, characterized in that: The insertion section (312) comprises an insertion plate (3121), the insertion plate (3121) is an arc-shaped structure, the thickness of the insertion plate (3121) is equal to the thickness of the sealing section (311), and the outer wall of the insertion plate (3121) is provided with a guide plate (3122), the thickness of the guide plate (3122) is less than the thickness of the insertion plate (3121).

8. The device for monitoring ground subsidence during excavation of a deep-buried anchor body arch seat according to claim 1, characterized in that: The adjusting push rod (2) comprises a vertical rod (21), the outer wall of the vertical rod (21) being provided with a diameter-changing section, and the contraction of the annular elastic body (32) is achieved by the up-and-down displacement of the diameter-changing section in the annular elastic body (32).

9. A ground settlement monitoring device for deep-buried anchor body arch excavation according to claim 8, characterized in that: The diameter-changing section is a truncated cone structure having a central through hole or is composed of a plurality of circumferentially arranged adjustment plates (22), and the radial width of the adjustment plates (22) tends to gradually decrease from top to bottom; The inner wall of the columnar housing (1) is provided with a sliding mechanism, and the adjusting push rod (2) is slidably arranged on the sliding mechanism.

10. The device for monitoring ground subsidence during excavation of a deep-buried anchor body arch seat according to claim 1, characterized in that: A monitoring chamber (13) for accommodating the monitoring component is disposed on the side wall of the columnar housing (1), or a partition (4) is disposed inside the columnar housing (1), the partition (4) partitioning the columnar housing (1) into an adjustment chamber (12) and the monitoring chamber (13), and the elastic adjustment member (3) and the adjustment push rod (2) are disposed inside the adjustment chamber (12).

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