Long-term settlement monitoring device for steel slag pile

Abstract

The utility model discloses a long-term settlement monitoring device for a steel slag pile, which relates to the technical field of settlement monitoring and comprises a settlement meter, an anchor head, a first reinforcing layer and a second reinforcing layer, one end of the settlement meter extends downwards into a steel slag pile hole and is fixedly connected with the anchor head, the first reinforcing layer is fixedly connected with the pile head of the steel slag pile, and the second reinforcing layer is fixedly connected with the pile head of the steel slag pile. The second reinforcing layer and the first reinforcing layer are fixedly connected together, the second reinforcing layer wraps and fixes the anchor head, and the settlement meter can deform in the vertical direction and output the deformation quantity in the form of an electric signal. The settlement meter, the anchor head, the first reinforcing layer and the second reinforcing layer are arranged, the anchor head is stably and fixedly connected with the pile head of the steel slag pile through the second reinforcing layer, the first reinforcing layer can reinforce the loose position of the pile head of the steel slag pile, and after the steel slag pile settles, the settlement meter can collect settlement displacement data monitored by the settlement meter all the time; and long-term settlement monitoring of the steel slag pile is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of settlement monitoring, in particular to a long-term settlement monitoring device for steel slag piles. Background Art

[0002] During the construction process, there are special rock and soil soft soil foundations such as silty soft soil, expansive soil, frozen soil, and saline soil. Cement fly ash gravel piles (CFG) are often used to treat soft soil foundations, but the cost of gravel limits the economic efficiency of CFG piles to a certain extent. Cement fly ash steel slag piles (CFS) that use industrial solid waste steel slag instead of gravel can significantly reduce material costs. In addition, the steel slag itself has expansibility, which is an effective method for soft soil foundation treatment.

[0003] The existing method for testing the settlement of granular foundations is mainly the settlement difference method. This method uses the buried steel ball method. The roller is statically pressed once to press the steel ball into the filler. A precision level is used to read the first reading on the top of the steel ball. Then, the vibration pressure is used again and the second reading is taken on the top of the steel ball. The difference between the two readings of the same steel ball is the settlement difference. This method can only test the settlement during the construction process and cannot perform long-term settlement observation. Therefore, how to observe the settlement changes of slag piles in the long term is the main problem currently. Utility Model Content

[0004] The utility model aims to provide a long-term settlement monitoring device for steel slag piles to solve the problems existing in the above-mentioned prior art, and can monitor the long-term settlement of steel slag piles, and the monitoring is simple and convenient.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a long-term settlement monitoring device for steel slag piles, comprising a settlement meter, an anchor head, a first reinforcement layer and a second reinforcement layer, wherein one end of the settlement meter is used to be fixed at the ground opening of the steel slag pile hole, and the other end of the settlement meter is used to extend downward into the steel slag pile hole and be fixedly connected to the anchor head, the first reinforcement layer is formed after a layer of cement slurry poured above the pile head of the steel slag pile in the steel slag pile hole solidifies, the first reinforcement layer can be fixedly connected to the pile head of the steel slag pile, the second reinforcement layer is formed after a layer of cement mortar poured above the first reinforcement layer solidifies, the second reinforcement layer can be fixedly connected to the first reinforcement layer, and the second reinforcement layer can wrap and fix the anchor head, and the settlement meter can produce deformation in the vertical direction and output the deformation amount as an electrical signal.

[0007] Preferably, it further comprises a data receiving module, wherein the data receiving module is communicatively connected to the sedimentation meter, and the sedimentation meter can transmit an electrical signal of the measured deformation amount to the data receiving device.

[0008] Preferably, it further comprises a power supply device, which is connected to both the data receiving module and the sedimentation meter, and is used to supply electric energy to the data receiving module and the sedimentation meter.

[0009] Preferably, the settlement meter includes a settlement plate and a displacement sensor. The outer diameter of the settlement plate is larger than the inner diameter of the slag pile hole and is used to be fixed at the ground opening of the slag pile hole. The top of the displacement sensor is fixedly connected to the settlement plate, and the bottom of the displacement sensor can be fixedly connected to the anchor head. The displacement sensor can be stretched and deformed in the vertical direction and measure the stretching deformation and convert it into an electrical signal output.

[0010] Preferably, the displacement sensor is fixedly connected to the anchor head via an extension rod, one end of the extension rod is fixedly connected to the displacement sensor, and the other end of the extension rod is fixedly connected to the anchor head.

[0011] Preferably, the displacement sensor is a pull-rod type linear displacement sensor.

[0012] Preferably, the power supply device includes a battery and a solar panel, the solar panel is electrically connected to the battery, the battery is connected to both the data receiving module and the sedimentation meter, and the solar panel can convert light energy into electrical energy and power the battery, and the battery can supply electrical energy to the data receiving module and the sedimentation meter.

[0013] Preferably, the anchor head includes a first connecting part and a second connecting part, the first connecting part is used to be fixedly connected to the sedimentation meter, the second connecting part is used to be fixedly connected to the second reinforcement layer, the first connecting part is a cylinder and the outer diameter of the first connecting part is larger than the outer diameter of one end of the sedimentation meter connected to the first connecting part, the second connecting part is an inverted cone and the upper end of the second connecting part is fixedly connected to the first connecting part, and the outer diameter of the upper end of the second connecting part is larger than the outer diameter of the first connecting part.

[0014] Preferably, backfill soil is further provided above the second reinforcement layer and between the settlement meter and the inner wall of the slag pile hole.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The utility model provides a long-term settlement monitoring device for steel slag piles, which fixes one end of the settlement meter at the opening of the steel slag pile hole and is provided with an anchor head at the other end. The anchor head is stably fixedly connected to the pile head of the steel slag pile through the second reinforcement layer, and the provision of the first reinforcement layer can reinforce the loose position of the steel slag pile head to ensure a stable connection between the second reinforcement layer and the first reinforcement layer. When the steel slag pile settles, the settlement meter can always collect the settlement displacement data it monitors, making the long-term settlement monitoring of the steel slag pile simple and convenient.

[0017] Furthermore, the data receiving module is capable of receiving data measured by the sedimentation meter, making data collection simpler and more convenient, and having a high degree of automation.

[0018] Furthermore, the provision of the power supply device can ensure the normal and stable operation of the data receiving module and the sedimentation meter.

[0019] Furthermore, the settlement meter adopts a settlement plate and a displacement sensor, which has a simple structure. The size of the settlement plate only needs to be larger than the inner diameter of the slag pile hole. The structure is simple and stable and reliable.

[0020] Furthermore, the provision of the extension rod enables the device to be used in situations where settlement is severe, thus making it widely applicable.

[0021] Furthermore, the displacement sensor adopts a pull rod type linear displacement sensor, and its components are common and easy to obtain.

[0022] Furthermore, the power supply device uses a solar panel in combination with a battery, which has a simple structure, easy-to-obtain components, and solar energy is a clean energy source, which is environmentally friendly and safe.

[0023] Furthermore, the structural arrangement of the cylinder and cone on the anchor head enables the anchor head to be more stably and reliably connected to the second reinforcement layer, so that it can stably and reliably drive the settlement meter to move and generate displacement deformation.

[0024] Furthermore, the backfill soil arrangement enables the settlement meter to be stably located in the slag pile hole without causing lateral movement to affect the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 1 This is a schematic diagram of the overall structure of the slag pile long-term settlement monitoring device provided by the utility model.

[0027] In the figure: 100 - long-term settlement monitoring device for slag pile; 1 - settlement meter; 11 - settlement plate; 12 - displacement sensor; 13 - extension rod; 2 - anchor head; 21 - first connection part; 22 - second connection part; 3 - first reinforcement layer; 4 - second reinforcement layer; 5 - slag pile hole; 6 - data receiving module; 7 - power supply device; 8 - backfill soil. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model aims to provide a long-term settlement monitoring device for steel slag piles to solve the problems existing in the prior art. The device can monitor the long-term settlement of steel slag piles and the monitoring is simple and convenient.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Embodiment 1

[0032] This embodiment provides a slag pile long-term settlement monitoring device 100. Figure 1 As shown, it includes a settlement meter 1, an anchor head 2, a first reinforcement layer 3 and a second reinforcement layer 4, one end of the settlement meter 1 is used to be fixed at the ground opening of the slag pile hole 5, and the other end of the settlement meter 1 is used to extend downward into the slag pile hole 5 and be fixedly connected to the anchor head 2, the first reinforcement layer 3 is a layer of cement slurry poured above the pile head of the slag pile in the slag pile hole 5 and formed after solidification, the first reinforcement layer 3 can be fixedly connected to the pile head of the slag pile, the second reinforcement layer 4 is a layer of cement mortar poured above the first reinforcement layer 3 and formed after solidification, the second reinforcement layer 4 can be fixedly connected to the first reinforcement layer 3, and the second reinforcement layer 4 can wrap and fix the anchor head 2, the settlement meter 1 can produce deformation in the vertical direction and output the deformation as an electrical signal. By fixing one end of the settlement meter 1 at the opening of the slag pile hole 5 and providing an anchor head 2 at the other end, the anchor head 2 is stably fixedly connected to the pile head of the slag pile through the second reinforcement layer 4, and the setting of the first reinforcement layer 3 can reinforce the loose position of the slag pile head to ensure a stable connection between the second reinforcement layer 4 and the first reinforcement layer 3. When the slag pile settles, the settlement meter 1 can always collect the monitored settlement displacement data, making the long-term settlement monitoring of the slag pile simple and convenient.

[0033] Specifically, the model of the sedimentation meter 1 is JMDL-47XXAT / ADT intelligent single-point sedimentation meter.

[0034] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the long-term settlement monitoring device 100 for slag piles also includes a data receiving module 6, which is connected to the settlement meter 1 in communication, and the settlement meter 1 can transmit the electrical signal of the measured deformation variable to the data receiving device. The data receiving module 6 can receive the data measured by the settlement meter 1, making its data collection simpler and more convenient, and with a high degree of automation.

[0035] Specifically, the data receiving module 6 is a prior art, which can convert the electrical signal of the deformation amount transmitted by the sedimentation meter 1 into displacement difference data.

[0036] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the slag pile long-term settlement monitoring device 100 also includes a power supply device 7, which is electrically connected to the data receiving module 6 and the settlement meter 1, and is used to supply power to the data receiving module 6 and the settlement meter 1. The setting of the power supply device 7 can ensure the normal and stable operation of the data receiving module 6 and the settlement meter 1.

[0037] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the settlement meter 1 includes a settlement plate 11 and a displacement sensor 12. The outer diameter of the settlement plate 11 is larger than the inner diameter of the slag pile hole and is used to be fixed at the ground opening of the slag pile hole. The top of the displacement sensor 12 is fixedly connected to the settlement plate 11, and the bottom of the displacement sensor 12 can be fixedly connected to the anchor head 2. The displacement sensor 12 can be stretched and deformed in the vertical direction and measure the stretching deformation and convert it into an electrical signal output. The settlement meter 1 adopts the settlement plate 11 and the displacement sensor 12. Its structure is simple. The size of the settlement plate 11 can be larger than the inner diameter of the slag pile hole 5. The structure is simple and stable and reliable.

[0038] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the displacement sensor 12 is fixedly connected to the anchor head 2 via an extension rod 13, one end of the extension rod 13 is fixedly connected to the displacement sensor 12, and the other end of the extension rod 13 is fixedly connected to the anchor head 2. The provision of the extension rod 13 enables the device to be applied to the situation of severe settlement, making it widely applicable.

[0039] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the displacement sensor 12 is a pull rod type linear displacement sensor. The displacement sensor 12 adopts a pull rod type linear displacement sensor, and its components are common and easy to obtain.

[0040] Specifically, the monitoring principle: the pull rod linear displacement sensor is also called a resistance ruler. It fixes the variable resistance slide rail at the tail of the sensor, and drives the slide to move on the slide rail through the end probe, thereby generating different resistance values. The sensor slide rail is connected to a steady-state direct current, and a small current of microamperes flows through it. The voltage of the slide at different positions is proportional to the length of the slide movement. By reading the different voltage signals generated by the sensor at different settlement displacements, the corresponding displacement can be measured.

[0041] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the power supply device 7 includes a battery and a solar panel, the solar panel is electrically connected to the battery, the battery is connected to both the data receiving module 6 and the sedimentation meter 1, and the solar panel can convert light energy into electrical energy and supply power to the battery, and the battery can supply electrical energy to the data receiving module 6 and the sedimentation meter 1. The power supply device 7 uses a solar panel with a battery, which has a simple structure, easy-to-obtain components, and solar energy is a clean energy, which is environmentally friendly and safe.

[0042] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the anchor head 2 includes a first connection part 21 and a second connection part 22, the first connection part 21 is used to be fixedly connected to the sedimentation meter 1, and the second connection part 22 is used to be fixedly connected to the second reinforcement layer 4, the first connection part 21 is a cylinder, and the outer diameter of the first connection part 21 is larger than the outer diameter of the end of the sedimentation meter 1 connected to the first connection part 21, the second connection part 22 is an inverted cone, and the upper end of the second connection part 22 is fixedly connected to the first connection part 21, and the outer diameter of the upper end of the second connection part 22 is larger than the outer diameter of the first connection part 21. The structural arrangement of the cylinder and cone on the anchor head 2 can make the anchor head 2 more stably and reliably connected to the second reinforcement layer 4, so that it can stably and reliably drive the sedimentation meter 1 to move and generate displacement deformation.

[0043] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, backfill soil 8 is also provided above the second reinforcement layer 4 and between the settlement meter 1 and the inner wall of the slag pile hole 5. The provision of the backfill soil 8 enables the settlement meter 1 to be stably located in the slag pile hole 5 without lateral movement, which would affect the measurement accuracy.

[0044] The long-term settlement monitoring device 100 of the steel slag pile provided in this embodiment is suitable for measuring the long-term settlement change law of the steel slag pile when treating the soft soil foundation. The specific method is as follows:

[0045] Step 1: Construct slag piles, cushion layers, embankments and base layers according to the design documents:

[0046] Step 2: After the base construction is completed, find the location of the slag pile according to GPS positioning, and reserve a mounting hole for the settlement plate 11 with a diameter of 300 mm and a height of 150 mm;

[0047] Step 3: Curing the base for 7 days according to the base construction technical requirements;

[0048] Step 4: After curing, a drilling machine is used to drill a hole with a diameter of 100 mm. The hole is drilled to the pile head position according to the thickness of the cushion layer, embankment, roadbed and base layer. The hole is the slag pile hole 5;

[0049] Step 5: Pour about 1000 mL of cement slurry into the pile head to reinforce the loose part of the pile head;

[0050] Step 6: Install the settlement meter 1 into the drilled hole, ensure that the anchor head 2 contacts the slag pile head, and pour cement mortar to make the bottom anchor head 2 and the pile head become a whole;

[0051] Step 7, adjusting the range of the displacement sensor 12, and testing whether the displacement sensor 12 collects data normally;

[0052] Step eight, backfilling the soil 8 and compacting the backfill soil 8;

[0053] Step nine, connect the wire of the sedimentation meter 1 to the data receiving module 6;

[0054] Step 10: After a certain period of time, the data collected by the data receiving module 6 is transmitted to the receiving device via wireless remote transmission.

[0055] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A slag pile long-term settlement monitoring device, characterized in that: It includes a settlement meter, an anchor head, a first reinforcement layer and a second reinforcement layer, one end of the settlement meter is used to be fixed at the ground opening of the steel slag pile hole, and the other end of the settlement meter is used to extend downward into the steel slag pile hole and fixedly connected to the anchor head, the first reinforcement layer is formed after a layer of cement slurry poured above the pile head of the steel slag pile in the steel slag pile hole solidifies, the first reinforcement layer can be fixedly connected to the pile head of the steel slag pile, the second reinforcement layer is formed after a layer of cement mortar poured above the first reinforcement layer solidifies, the second reinforcement layer can be fixedly connected to the first reinforcement layer, and the second reinforcement layer can wrap and fix the anchor head, the settlement meter can produce deformation in the vertical direction and output the deformation as an electrical signal.

2. The slag pile long-term settlement monitoring device according to claim 1 is characterized by: It also includes a data receiving module, which is communicatively connected to the sedimentation meter, and the sedimentation meter can transmit an electrical signal of the measured deformation amount to the data receiving module.

3. The slag pile long-term settlement monitoring device according to claim 2 is characterized in that: It also includes a power supply device, which is connected to both the data receiving module and the sedimentation meter, and is used to supply electric energy to the data receiving module and the sedimentation meter.

4. The slag pile long-term settlement monitoring device according to claim 1 is characterized in that: The settlement meter includes a settlement plate and a displacement sensor. The outer diameter of the settlement plate is larger than the inner diameter of the slag pile hole and is used to be fixed at the ground opening of the slag pile hole. The top of the displacement sensor is fixedly connected to the settlement plate, and the bottom of the displacement sensor can be fixedly connected to the anchor head. The displacement sensor can be stretched and deformed in the vertical direction and measure the stretching deformation and convert it into an electrical signal output.

5. The slag pile long-term settlement monitoring device according to claim 4 is characterized in that: The displacement sensor is fixedly connected to the anchor head via an extension rod, one end of the extension rod is fixedly connected to the displacement sensor, and the other end of the extension rod is fixedly connected to the anchor head.

6. The slag pile long-term settlement monitoring device according to claim 5 is characterized by: The displacement sensor is a pull rod type linear displacement sensor.

7. The slag pile long-term settlement monitoring device according to claim 3 is characterized by: The power supply device includes a battery and a solar panel, the solar panel is electrically connected to the battery, the battery is connected to the data receiving module and the sedimentation meter, and the solar panel can convert light energy into electrical energy and supply power to the battery, and the battery can supply electrical energy to the data receiving module and the sedimentation meter.

8. The slag pile long-term settlement monitoring device according to claim 1 is characterized by: The anchor head includes a first connecting part and a second connecting part, the first connecting part is used to be fixedly connected to the sedimentation meter, and the second connecting part is used to be fixedly connected to the second reinforcement layer, the first connecting part is a cylinder and the outer diameter of the first connecting part is larger than the outer diameter of one end of the sedimentation meter connected to the first connecting part, the second connecting part is an inverted cone and the upper end of the second connecting part is fixedly connected to the first connecting part, and the outer diameter of the upper end of the second connecting part is larger than the outer diameter of the first connecting part.

9. The slag pile long-term settlement monitoring device according to claim 1, characterized in that: Backfill soil is also arranged above the second reinforcement layer and between the settlement meter and the inner wall of the slag pile hole.

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