Multi-stratum integrated layered settlement monitor

Abstract

The embodiment of the utility model relates to the field of rock-soil settlement monitoring, in particular to a multi-stratum integrated layered settlement monitor. The multi-stratum integrated layered settlement monitor comprises a settlement pipe and a settlement magnetic ring, the settlement magnetic ring comprises an outer magnetic ring and an inner magnetic ring arranged on the outer side of the settlement pipe in a sleeving mode, and a supporting rod is arranged at the bottom of the inner magnetic ring and used for containing the outer magnetic ring; a plurality of transmission grooves parallel to the tangential direction of a certain ring body are formed in the outer magnetic ring, and one end of each transmission groove penetrates through the outer magnetic ring; a fixing needle is arranged in each transmission groove, and one end of each fixing needle is sleeved with a first spring used for ejecting the corresponding fixing needle out of the corresponding transmission groove. According to the embodiment, the defect that an existing layered settlement monitor cannot be used for monitoring deep hard rocks is overcome, and compared with a traditional bed rock mark and a layered mark, the drilling cost is greatly saved, stability and compatibility are improved, and the application range of strata is widened.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the field of geotechnical settlement monitoring, in particular to a multi-stratum integrated layered settlement monitor. BACKGROUND

[0002] The traditional ground settlement monitoring layered marker mainly consists of bedrock markers and layered markers. The bedrock marker is a special monitoring point buried on the complete bedrock underground through drilling method. The marker point from the underground bedrock marker to the ground surface is the starting point or elevation control point for the leveling measurement of ground settlement. The layered marker is a special monitoring point buried in different depths of soil layers through drilling method according to the properties of the soil layers. The marker point passes through the ground surface and rises and falls with the compression and expansion of the soil layers, thereby monitoring the total settlement or total rebound of the point to the ground. Generally, in order to accurately judge the settlement condition of different depth soil layers, multiple drilling and multiple layered markers need to be set.

[0003] Subsequently, layered settlement monitors appear on the market, which can realize layered settlement monitoring at different depths in a single borehole. The settlement magnetic ring is fixed on the settlement pipe by using a paper tape, and the anchor iron sheet of the settlement magnetic ring is embedded into the soil after the paper tape breaks when it encounters water in the borehole. However, when the underground water level is high, the settlement magnetic ring has not reached the specified position, and the paper tape breaks in advance, which makes it difficult to fix the magnetic ring to the preset position. Subsequent patent documents have improved this layered settlement monitor, such as Chinese patent document CN218329901U discloses a layered settlement pipe structure and a layered settlement monitor. The layered settlement pipe structure includes a settlement pipe body and a connecting piece. The settlement pipe body extends along the vertical direction, and the settlement magnetic ring can be sleeved on the settlement pipe body. The outer side wall of the settlement pipe body is provided with a clamping piece, the settlement magnetic ring can abut against the lower end of the clamping piece, and the clamping piece is integrally formed with the settlement pipe body. The connecting piece can be connected to the settlement pipe body at both ends in the vertical direction. The implementation example provided in the patent document cannot be applied to shallow soft soil body, and cannot produce position changes synchronously with the stratum; Chinese patent document CN219347730U discloses a layered settlement monitor, which includes a mounting guide pipe with an axially communicating inner cavity; a plurality of layered settlement monitoring markers are sleeved on the mounting guide pipe and are arranged at intervals along the axial direction of the mounting guide pipe, and each layered settlement monitoring marker is provided with an electronic tag; a probe assembly capable of reading and writing the electronic tags moves in the inner cavity. The implementation example provided in the patent document uses an elastic grappling hook for limiting and fixing, which has poor stability and is only suitable for shallow soft soil body. In deep rock soil body, the anchor iron sheet is difficult to insert due to the hardness of the rock, and the settlement magnetic ring cannot be effectively fixed. UTILITY MODEL CONTENT

[0004] The elastic force of the anchor iron sheet configured by the current layered settlement monitor is weak, and the stability is poor, which is only suitable for shallow soft soil. In deep rock soil, it is difficult to insert the anchor iron sheet due to hard rock, and the settlement magnetic ring cannot be effectively fixed.

[0005] To solve the above problems, the purpose of the embodiments of the present application is to provide a multi-formation integrated layered settlement monitor, which comprises a settlement pipe and a settlement magnetic ring. The settlement magnetic ring comprises an outer magnetic ring and an inner magnetic ring sleeved outside the settlement pipe. The inner magnetic ring is provided with a support rod at the bottom for placing the outer magnetic ring. A plurality of transmission grooves parallel to the tangent direction of a certain ring body are arranged in the outer magnetic ring, and one end of each transmission groove penetrates the outer magnetic ring. A fixed needle is arranged in each transmission groove, and a first spring is sleeved at one end of the fixed needle for ejecting the fixed needle out of the transmission groove.

[0006] The embodiments of the present application also include a monitoring method, which comprises the above-mentioned multi-formation integrated layered settlement monitor.

[0007] The purpose of the embodiments of the present application is to provide a multi-formation integrated layered settlement monitor and a monitoring method, which overcome the shortcomings of the current layered settlement monitor that cannot be used for deep hard rock monitoring. Compared with the traditional bedrock marker and layered marker, the drilling cost is greatly saved, the stability and compatibility are improved, and the application range of the stratum is expanded.

[0008] In some embodiments, a transmission device is further arranged in each transmission groove, and the transmission device is connected with the first spring.

[0009] In some embodiments, each transmission device further comprises a first protrusion extending out of the inner side of the outer magnetic ring.

[0010] In some embodiments, a control device is further included, which controls the rotation of the settlement pipe, and the inner magnetic ring rotates with the rotation of the settlement pipe.

[0011] In some embodiments, a second protrusion corresponding to the first protrusion is arranged on the outer side of the inner magnetic ring. When the inner magnetic ring rotates, the second protrusion drives the transmission device to slide in the transmission groove through the first protrusion.

[0012] In some embodiments, a limiting groove connected with each transmission groove is further arranged in the outer magnetic ring, and a limiting component is arranged in each limiting groove to limit the movement of the fixed needle by clamping the annular protrusion on the fixed needle. The limiting component is connected with the outer magnetic ring through a second spring.

[0013] In some embodiments, the transmission device is rotationally connected with the limiting component, and when the transmission device slides in the transmission groove, the limiting component is driven to rotate.

[0014] In some embodiments, one end of the fixed needle is tapered, and the tapered end of the fixed needle faces the end of the transmission groove that penetrates the outer magnetic ring. The other end of the fixed needle is sleeved with a first spring.

[0015] In some embodiments, a plurality of support rods are provided, each of which is connected to the bottom of the inner magnetic ring through a rotating part. When the inner magnetic ring rotates, the rotating part drives the support rod to retract to just below the bottom of the inner magnetic ring or extend out of just below the bottom of the inner magnetic ring for placing the outer magnetic ring.

[0016] In some embodiments, the multi-layer integrated layered sedimentation monitoring instrument comprises the following steps:

[0017] S1: Control the rotation of the inner magnetic ring to extend the support rod and place the outer magnetic ring on the support rod;

[0018] S2: The inner magnetic ring is sleeved on the sedimentation tube;

[0019] S3: Place the sedimentation tube into the well and lower the sedimentation magnetic ring to the stratum at the predicted depth;

[0020] S4: Control the rotation of the inner magnetic ring to make the second protrusion drive the transmission device to slide in the transmission groove through the first protrusion, so that the first spring is elastically deformed. At the same time, the transmission device drives the limiting part to rotate, so that the movement of the fixed needle is no longer limited by the limiting part. The first spring shoots the fixed needle out of the transmission groove where it is located, and the tapered end penetrates into the well wall to fix the outer magnetic ring at the stratum at its depth;

[0021] S5: Continue to control the rotation of the inner magnetic ring to retract the support rod to just below the bottom of the inner magnetic ring, so that the outer magnetic ring is separated from the axial limitation of the inner magnetic ring. The depth of the outer magnetic ring is the depth of the stratum where it is located.

[0022] S6: When detecting the stratum, lower the detection sensor from the upper port of the sedimentation tube. When the sensor detects the outer magnetic ring, the sensor feeds back the depth information, and the operator records the depth of the outer magnetic ring at this time. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are illustrated by way of example in the figures that form a part of this patent document. These example illustrations are not intended to limit the application, but to illustrate exemplary principles of the application. Elements having the same reference numbers in figures across one or more embodiments indicate the same or similar elements. Unless otherwise indicated, figures in the drawings are not drawn to scale and are meant to be illustrative only.

[0024] Figure 1 is a side view structural schematic diagram of a sedimentation magnetic ring in a multi-layer integrated layered sedimentation monitoring instrument provided by some embodiments of the present application;

[0025] Figure 2is a top view structural schematic diagram of a settlement magnetic ring in a multi-layer integrated layered settlement monitor provided by some embodiments of the present application;

[0026] Figure 3 is a bottom view structural schematic diagram of a settlement magnetic ring in a multi-layer integrated layered settlement monitor provided by some embodiments of the present application;

[0027] Figure 4 is a top view structural schematic diagram of a settlement magnetic ring after a fixed needle is shot in a multi-layer integrated layered settlement monitor provided by some embodiments of the present application;

[0028] Figure 5 is a bottom view structural schematic diagram of a settlement magnetic ring after a fixed needle is shot in a multi-layer integrated layered settlement monitor provided by some embodiments of the present application.

[0029] Legend: 1 - inner magnetic ring; 2 - outer magnetic ring; 3 - fixed needle; 4 - first spring; 5 - transmission device; 6 - limiting component; 7 - second spring; 8 - support rod; 9 - rotating component;

[0030] 31 - annular protrusion. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that in the embodiments of the present application, many technical details are proposed in order to make the readers better understand the present application. However, even without these technical details and based on various changes and modifications of the following embodiments, the technical solutions claimed by the present application can be implemented. The following embodiments are classified for the purpose of description, and should not constitute any limitation on the specific embodiments of the present application, and the embodiments can be combined and referred to each other without contradiction.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0034] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connecting" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] Referring to Figures 1 to 5 , the embodiments of the present application provide the following technical solutions:

[0036] As Figures 1-3 shown, the multi-layer integrated stratified sedimentation monitor includes a sedimentation tube and a sedimentation magnetic ring, the sedimentation magnetic ring includes an outer magnetic ring 2 and an inner magnetic ring 1 sleeved outside the sedimentation tube, the inner magnetic ring 1 is provided with three supporting rods 8 at the bottom for placing the outer magnetic ring 2; the outer magnetic ring 2 is provided with three transmission grooves parallel to the tangential direction of a certain ring body, one end of the transmission groove penetrates the outer magnetic ring 2; one fixed needle 3 is arranged in each transmission groove, and one end of the fixed needle 3 is sleeved with a first spring 4 for ejecting the fixed needle 3 out of the transmission groove.

[0037] It should be noted that the three transmission grooves are located on the same horizontal plane, and the included angle between the three transmission grooves on the horizontal plane is 60°.

[0038] Each transmission groove is also provided with a transmission device 5, and the transmission device 5 is connected with the first spring 4.

[0039] Each transmission device 5 further includes a first protrusion extending out of the inner side of the outer magnetic ring 2.

[0040] Further comprising a control device, the control device controls the rotation of the sedimentation tube, and the inner magnetic ring 1 rotates with the rotation of the sedimentation tube.

[0041] The outer side of the inner magnetic ring 1 is provided with a second protrusion corresponding to the first protrusion one by one, and when the inner magnetic ring 1 rotates, the second protrusion drives the transmission device 5 to slide in the transmission groove through the first protrusion.

[0042] The outer magnetic ring 2 is also provided with a limiting groove connected with each transmission groove, and a limiting part 6 is arranged in each limiting groove to limit the movement of the fixed needle 3 by clamping the annular protrusion 31 on the fixed needle 3, and the limiting part 6 is connected with the outer magnetic ring 2 through a second spring.

[0043] The transmission device 5 is rotationally connected with the limiting part 6, and when the transmission device 5 slides in the transmission groove, the limiting part 6 is driven to rotate.

[0044] One end of the fixed needle 3 is provided with a taper, the tapered end of the fixed needle 3 is towards the end of the transmission groove penetrating the outer magnetic ring 2, the other end of the fixed needle 3 is sleeved with the first spring 4.

[0045] Each support rod 8 is connected with the bottom of the inner magnetic ring 1 through the rotating part 9, when the inner magnetic ring 1 rotates, the rotating part 9 drives the support rod 8 to be retracted to the bottom of the inner magnetic ring 1 or to be stretched out of the bottom of the inner magnetic ring 1 for placing the outer magnetic ring 2.

[0046] The embodiment includes a multi-layer integrated layered settlement monitoring method including the layered settlement monitoring instrument, and the following steps are adopted:

[0047] S1: control the rotation of the inner magnetic ring 1, so that the three support rods 8 are stretched, and the outer magnetic ring 2 is placed on the support rods 8;

[0048] S2: the inner magnetic ring 1 is sleeved on the settlement pipe;

[0049] S3: the settlement pipe is placed into the well, and the settlement magnetic ring is lowered to the stratum at the predicted depth;

[0050] S4: control the rotation of the inner magnetic ring 1, so that the second protrusion drives the transmission device 5 to slide in the transmission groove through the first protrusion, so that the first spring 4 is elastically deformed; at the same time, the transmission device 5 drives the limiting part 6 to rotate, so that the movement of the fixed needle 3 is no longer limited by the limiting part 6; the first spring 4 shoots the fixed needle 3 out of the transmission groove, and the tapered end is stuck into the well wall, so that the outer magnetic ring 2 is fixed in the stratum at the depth;

[0051] S5: continue to control the rotation of the inner magnetic ring 1, so that the support rod 8 is retracted to the bottom of the inner magnetic ring 1, and the outer magnetic ring 2 is separated from the axial limitation of the inner magnetic ring 1, so that the depth of the outer magnetic ring 2 is the depth of the stratum;

[0052] S6: when the stratum is monitored, the detection sensor is lowered from the upper end of the settlement pipe, when the sensor detects the outer magnetic ring 2, the sensor feeds back the depth information, and the operator records the depth of the outer magnetic ring 2 at this time.

[0053] It should be noted that: in actual use, the depth of the pre-monitoring stratum is first calculated, and then the position of the settlement magnetic ring needed to be fixed on the settlement pipe is determined. The fixed needle 3 is placed in the transmission groove, and the movement of the fixed needle 3 is limited by the limiting part 6 to be fixed in the transmission groove, at this time, the first spring 4 and the second spring 7 are in a free state. The rotation of the inner magnetic ring 1 is controlled by the control device, the rotating part 9 drives the support rod 8 to stretch out of the bottom of the inner magnetic ring 1, and the outer magnetic ring 2 is placed on the support rod 8.

[0054] Then the inner magnetic ring 1 is sleeved on the settlement pipe, and then the settlement magnetic ring is lowered along the settlement pipe into the well.

[0055] When the settling magnetic ring is lowered to the formation at the predicted depth, the control device controls the rotation of the inner magnetic ring 1, causing the second protrusion to contact the first protrusion. The first protrusion drives the transmission device 5 to slide in the transmission groove, causing the first spring 4 to compress. At the same time, the transmission device 5 drives the limiting component 6 to rotate, causing the second spring 7 to compress. At this time, after the limiting component 6 rotates, it no longer jams the annular protrusion 31 on the fixing needle 3. The movement of the fixing needle 3 is no longer restricted by the limiting component 6. The compressed first spring 4 releases its elastic potential energy, pushing the annular protrusion 31, causing the fixing needle 3 to be ejected from the transmission groove where it is located. The conical end of the needle is inserted into the well wall, fixing the outer magnetic ring 2 at the formation at its depth.

[0056] like Figures 4-5 As shown, after the three fixing needles 3 are ejected and inserted into the sidewall of the well, the outer magnetic ring 2 is fixed to the formation at this depth. When the inner magnetic ring 1 continues to rotate, the rotating component 9 drives the support rod 8 to retract to directly below the bottom of the inner magnetic ring 1. Then, the outer magnetic ring 2 is separated from the axial constraint of the inner magnetic ring 1 and the settling pipe. Subsequently, if the formation at this depth changes, the axial position of the outer magnetic ring 2 on the settling pipe will change accordingly. At this time, the installation of the outer magnetic ring 2 is completed.

[0057] During depth monitoring, the detection sensor is lowered from the upper port of the settling pipe. When sensor 2 detects the outer magnetic ring 2, the sensor feeds back depth information, and the operator records the depth of the outer magnetic ring at this time.

[0058] It should be noted that the model numbers of the first spring 4 and the second spring 7 include, but are not limited to, CSYWY-16-70.

[0059] It should be noted that multiple settling magnetic rings can be installed on the settling pipe.

[0060] It should be noted that the material of the settling magnetic ring includes, but is not limited to, magnetic materials, and the upper half of the outer magnetic ring 2 can be magnetically attracted to the lower half of the outer magnetic ring.

[0061] This multi-stratum integrated stratified settlement monitoring instrument achieves synchronous changes with the stratum by rotating the inner magnetic ring, which first fixes the outer magnetic ring to the stratum and then disengages from the axial limit of the settlement tube. The spring type and the material of the fixing pin are determined according to the hardness of the soil in the stratum to be monitored and can be replaced in time. This overcomes the shortcomings of current stratified settlement monitoring instruments that cannot be used for monitoring deep hard rocks. Compared with traditional bedrock markers and stratification markers, it improves compatibility and expands the application range of strata. The three fixing pins are in the same plane, which improves the stability of the outer magnetic ring.

[0062] Those skilled in the art can understand that the above-mentioned embodiments are specific examples for implementing the present application, and in actual applications, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. A multi-layer integrated stratification settlement monitor, characterized by, The application relates to a sedimentation tube and a sedimentation magnetic ring, wherein the sedimentation magnetic ring comprises an outer magnetic ring and an inner magnetic ring sleeved outside the sedimentation tube, the bottom of the inner magnetic ring is provided with a supporting rod for placing the outer magnetic ring, a plurality of transmission grooves parallel to the tangential direction of a ring body are arranged in the outer magnetic ring, one end of each transmission groove penetrates through the outer magnetic ring, a fixed needle is arranged in each transmission groove, one end of the fixed needle is sleeved with a first spring for ejecting the fixed needle out of the transmission groove, and annular protrusions are arranged on the fixed needle for limiting one end of the first spring.

2. The multi-layer integrated stratification settlement monitor according to claim 1, wherein, Each transmission groove is further provided with a transmission device connected with the first spring.

3. The multi-layer integrated stratification settlement monitor of claim 2, wherein, Each transmission device further comprises a first protrusion extending out of the inner side of the outer magnetic ring.

4. The multi-layer integrated stratification settlement monitor of claim 3, wherein, The application further comprises a control device for controlling the rotation of the sedimentation tube, and the inner magnetic ring rotates with the rotation of the sedimentation tube.

5. The multi-layer integrated stratified settlement monitor of claim 4, wherein, The outer side of the inner magnetic ring is provided with second protrusions corresponding to the first protrusions one by one, and when the inner magnetic ring rotates, the second protrusions drive the transmission devices to slide in the transmission grooves through the first protrusions.

6. The multi-layer integrated stratified settlement monitor of claim 5, wherein, The outer magnetic ring is further provided with limiting grooves connected with each transmission groove, each limiting groove is provided with a limiting component for limiting the movement of the fixed needle by clamping the annular protrusions on the fixed needle, and the limiting component is connected with the outer magnetic ring through a second spring.

7. The multi-layer integrated delamination monitoring instrument of claim 6, wherein, The transmission device is rotationally connected with the limiting component, and when the transmission device slides in the transmission groove, the limiting component is driven to rotate.

8. The multi-layer integrated stratification settlement monitor of claim 7, wherein, One end of the fixed needle is tapered, the tapered end of the fixed needle faces the end of the transmission groove penetrating through the outer magnetic ring, and the other end of the fixed needle is sleeved with the first spring.

9. The multi-layer integrated delamination monitoring instrument of claim 8, wherein, The supporting rod is provided with a plurality of supporting rods, each supporting rod is connected with the bottom of the inner magnetic ring through a rotating component, and when the inner magnetic ring rotates, the rotating component drives the supporting rod to be retracted to or extended out of the bottom of the inner magnetic ring for placing the outer magnetic ring.

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