Testing device for underground diaphragm wall pouring

Abstract

The invention discloses a testing device for underground diaphragm wall pouring, and the testing device comprises a visual box body which comprises an opening end part and an accommodation cavity; the reserved groove box is arranged in the accommodating cavity; the material lifting device is used for conveying materials into the containing cavity. The testing device for underground diaphragm wall pouring can be repeatedly used, soil body contact forming faces are reserved (the reserved groove box ensures that the contact faces of different tested soil bodies are consistent), the pouring situation can be observed (the pouring situation can be observed through the visual box body), soil body grooving is easy, and the testing efficiency is improved. The problems that an existing test device is high in test cost, large in detection difficulty, high in labor cost, difficult to operate repeatedly, not easy to observe, incapable of reflecting the influence of pouring influence factors of the reduced-scale underground diaphragm wall on forming of the reduced-scale underground diaphragm wall and the like are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of test devices for underground continuous wall pouring, in particular to a test device for underground continuous wall pouring, which can be applied to detect the pouring effect of underground continuous wall. BACKGROUND

[0002] Currently, three main technical problems are faced in the pouring process of underground continuous wall of rail transit, specifically: (1) high test cost: there are many forming influencing factors in the pouring process of underground continuous wall of rail transit, such as pump feeding speed, mud mixing ratio, concrete mixing ratio, etc. Under real working conditions, the volume of underground continuous wall pouring is extremely large, which causes cost constraints for the research of its influencing factors; (2) difficult to detect: the pouring process of underground continuous wall is a closed space, which needs to be detected by precise and high-end equipment. For the equipment in the closed space, it is difficult to intuitively reflect the influence of forming influencing factors on underground continuous wall pouring; (3) high labor cost: the scaled test of underground continuous wall has cost advantage compared with actual engineering, but it needs to be wrapped with soil in the pouring area, the forming area needs to be excavated, the labor input is large, and the slotting is poor, it is difficult to control the flatness of the contact surface between underground continuous wall and soil, after the test piece is poured and formed, the structure is still large, and it is troublesome to disassemble; (4) difficult to repeat operation: it is difficult to control the contact soil variables in the full-scale test of underground continuous wall, other forming influencing factors are prone to occur, and the test device for underground continuous wall pouring of easy-to-observe scaled underground continuous wall can be repeatedly used.

[0003] For example, patent CN115615821A discloses a test device and method for a diaphragm wall model. The test device includes a geotechnical model box, a reaction frame, a diaphragm wall model, a rubber sleeve with an internal support skeleton, static loading and seismic simulation loading devices, a lateral restraint device, and soil filling inside the box. The rubber sleeve achieves unequal soil filling heights on both sides of the diaphragm wall; laterally positioned hydraulic jacks simulate the horizontal restraint of the rigid layer of the underground structure; loading blocks simulate vertical static loading; and the vertical alternating electromagnetic force generated by electromagnets is converted into horizontal lateral pressure in the soil to simulate seismic loads. The seismic simulation loading device and the lateral restraint device do not interfere with the dynamic response of the soil and model inside the box. This test device is easy and quick to assemble and disassemble, has good sealing properties, and is convenient to use. It can accurately simulate the static load and seismic action on a diaphragm wall in the laboratory, and test its response to evaluate its performance. However, this method has the following drawbacks: it cannot reflect the influence of factors affecting the casting of scaled-down diaphragm walls on their formation; its equipment design, including jacks and loading devices, results in high equipment costs; while its application of pressurization to simulate soil pressure provides some reference for the stress conditions of diaphragm walls, it does not provide any reference for exploring the influence of factors such as pumping speed, slurry mix ratio, and concrete mix ratio on the formation of diaphragm walls; and the diaphragm wall simulated by its rubber bag cannot accurately simulate the contact and forming surface between the soil and the diaphragm wall.

[0004] Therefore, there is an urgent need to develop a test device for the construction of diaphragm walls that is reusable, easy to observe, and does not require a loading device. Using this device, the forming of diaphragm walls during concrete pouring can be simulated, concrete quality control can be achieved during the concrete pouring process, and the dynamic adjustment of the pipe lifting method, pouring area, etc., during the concrete pouring process of diaphragm wall structures can be studied in relation to the concrete mix ratio, pumping speed, and bentonite ratio. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a test device for casting underground continuous walls, which solves the problems of high testing costs, high testing difficulty, high labor costs, difficulty in repeating operations, difficulty in observation, and inability to reflect the influence of factors affecting the casting of scaled underground continuous walls on their formation.

[0006] To address the aforementioned technical problems, the present invention provides a test apparatus for casting underground continuous walls, comprising:

[0007] A visualization enclosure, the visualization enclosure including an open end and a receiving cavity;

[0008] A reserved slot box is provided inside the receiving cavity;

[0009] A material conveying device is used to transport materials into the receiving cavity.

[0010] Optionally, the visualization box is an acrylic box.

[0011] Optionally, the visualization box is a cuboid, the length of the cuboid is 80-120 cm, the width is 40-60 cm, and the height is 100-120 cm.

[0012] Optionally, the length of the reserved groove box is 50-70 cm, the width is 10-15 cm, and the height is 70-90 cm.

[0013] Optionally, the distance between the bottom of the reserved groove box and the bottom of the visualization box is 10-30 cm.

[0014] Optionally, the reserved groove box is a PVC reserved groove box.

[0015] Optionally, the PVC reserved groove box comprises a PVC reserved groove box body and a PVC containment device, and the inner surface of the PVC containment device can coincide with the three sides of the PVC reserved groove box body.

[0016] Optionally, a pull ring is arranged on the PVC reserved groove box body.

[0017] Optionally, the material lifting device comprises:

[0018] a funnel;

[0019] a motor servo lifting or lowering device connected with the funnel and adjusting the feeding position of the funnel;

[0020] a conduit for conveying material into the containing cavity;

[0021] a pumping device comprising a micro pump, the feeding end of the micro pump being connected with the feeding port of the funnel, the discharging end of the micro pump being connected with the feeding port of the conduit, and the micro pump being used to control the feeding speed of the conduit.

[0022] Optionally, the test device for underground continuous wall pouring further comprises:

[0023] a data acquisition unit connected with the motor servo lifting or lowering device, comprising an image collection device for capturing the visual information of the concrete flow pattern, accumulation state, and interface change of the pouring area in real time; the data acquisition unit is used to collect the parameter information of the current feeding speed and pipe lifting position for different concrete mix proportion and mud mix proportion, so as to model and parameterize the pouring of different concrete and mud;

[0024] A data processing and analysis unit is connected with the data acquisition unit, and comprises an information processing device and a decision and control device; the information processing device is used for pre-processing visual information collected by the data acquisition unit, extracting a concrete diffusion range, a flow speed, whether segregation or honeycomb features appear, combining concrete and mud mixing ratio parameters, analyzing a correlation between the features and pouring effects through a machine learning model, and generating an instruction; the instruction is fed back to the decision and control device to generate decision instructions of feeding outlet position adjustment, pipe lifting speed optimization and concrete or mud mixing ratio fine adjustment; and the decision and control device is used for receiving the instruction of the information processing device and driving the motor servo lifting or lowering device and the pumping device to perform adjustment actions.

[0025] Compared with the prior art, the test device for underground continuous wall pouring provided by the embodiment of the present application has the following advantages:

[0026] The test device for underground continuous wall pouring provided by the present application comprises a visual box, the visual box comprising an open end and a containing cavity; a reserved groove box arranged in the containing cavity; and a material lifting device for conveying material into the containing cavity. The test device for underground continuous wall pouring provided by the present application is reusable, retains a soil body contact forming surface (the reserved groove box ensures that different test soil body contact surfaces are consistent), can observe pouring conditions (the visual box can observe pouring conditions), is easy to form a soil body groove, and solves problems such as high test cost, great detection difficulty, high labor cost, difficult repeated operation, difficulty in observation, and inability to reflect the influence of scale reduction underground continuous wall pouring influencing factors on its forming. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some of the drawings in the embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 It is a structural schematic diagram of the test device for underground continuous wall pouring in an embodiment of the present application.

[0029] Figure 2 It is a three-dimensional structural schematic diagram of the visual box and the reserved groove box in an embodiment of the present application.

[0030] Figure 3 It is a side structural schematic diagram of the visual box and the reserved groove box in an embodiment of the present application.

[0031] Figure 4A perspective view of a slot box for another embodiment of the present application.

[0032] Figure 5 An exploded view of a slot box for another embodiment of the present application.

[0033] Figure 6 A schematic view of a test device structure for diaphragm wall pouring for another embodiment of the present application.

[0034] Figure 7 Test results of pouring test for Test Example 1 of the present application, wherein the normal pouring speed is 6 L / min, the slow pouring speed is 4 L / min, and the fast pouring speed is 12 L / min.

[0035] Reference signs:

[0036] 10 - test device for diaphragm wall pouring

[0037] 100 - visualization box

[0038] 200 - slot box, 201 - PVC slot box body, 202 - PVC containment device, 203 - pull ring

[0039] 300 - material lifting device, 301 - hopper, 302 - motor servo lifting or lowering device, 303 - conduit, 304 - pumping device

[0040] 400 - data acquisition unit

[0041] 500 - data processing and analysis unit DETAILED DESCRIPTION

[0042] In order to make the person in the art better understand the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0043] As described in the prior art, the prior art subway underground continuous wall pouring process faces three main technical problems, specifically: (1) high test cost: there are many forming influencing factors in the subway underground continuous wall pouring process, such as pump feeding speed, mud mixing ratio, concrete mixing ratio, etc. In real working conditions, the underground continuous wall pouring volume is extremely large, which causes cost constraints in the research of influencing factors; (2) difficult to detect: the underground continuous wall pouring process is a closed space, which needs to be detected by precise high-end equipment. For closed space equipment, it is difficult to intuitively reflect the influence of forming influencing factors on underground continuous wall pouring; (3) high labor cost: the underground continuous wall scale test has cost advantage compared with the actual project, but it needs to be wrapped with soil in the pouring area, and the forming area needs to be excavated, which requires a large amount of labor input, and the slotting is poor, it is difficult to control the flatness of the contact surface between the underground continuous wall and the soil, and after the test piece is poured and formed, the structure is still large, and it is troublesome to disassemble; (4) difficult to repeat operation: the full-scale test of the underground continuous wall is difficult to control the contact soil variable, and other forming influencing factors are prone to occur. The test device for pouring of underground continuous wall provided by the embodiment of the present application can be reused, the soil contact forming surface is reserved (the reserved slot box ensures the consistency of the contact surface of different test soils), the pouring condition can be observed (the visual box can observe the pouring condition), the soil grooving is easy, and the problems of high test cost, difficult detection, high labor cost, difficult repeated operation, not easy to observe, and unable to reflect the influence of scale underground continuous wall pouring influencing factors on the forming are solved.

[0044] In order to solve the above technical problems, as described below, the test device for pouring of underground continuous wall provided by the embodiment of the present application, comprising: a visual box, the visual box comprising an open end and a containing cavity; a reserved slot box, the reserved slot box being arranged in the containing cavity; a material lifting device for conveying material into the containing cavity. The test device for pouring of underground continuous wall provided by the present application can be reused, the soil contact forming surface is reserved (the reserved slot box ensures the consistency of the contact surface of different test soils), the pouring condition can be observed (the visual box can observe the pouring condition), the soil grooving is easy, and the problems of high test cost, difficult detection, high labor cost, difficult repeated operation, not easy to observe, and unable to reflect the influence of scale underground continuous wall pouring influencing factors on the forming are solved.

[0045] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be described in detail below with reference to the drawings and specific embodiments. Figure 1 The structure diagram of the test device for pouring of underground continuous wall in an embodiment of the present application.

[0046] Please refer to Figure 1 The embodiment of the present application provides a test device for pouring of underground continuous wall 10, comprising: a visual box 100, the visual box 100 comprising an open end and a containing cavity; a reserved slot box 200, the reserved slot box 200 being arranged in the containing cavity; a material lifting device 300 for conveying material into the containing cavity.

[0047] It should be noted that in actual use, the reserved groove box 200 is arranged in the accommodating cavity to form an occupation groove, which is convenient for forming a groove section, and because the reserved groove box is convenient to take out during the test process, the consistency of the contact surface of different test soil bodies can be ensured, and the material lifting device 300 is used to deliver the material into the accommodating cavity during the test process.

[0048] Optionally, in some embodiments, the visualization box 100 is an acrylic box, which can realize real-time observation of the pouring of mud and concrete.

[0049] Please refer to Figure 2 , Figure 2 is a perspective view of the visualization box and the reserved groove box in an embodiment of the present application. Optionally, in some embodiments, the visualization box 100 is a cuboid, and the length L1 of the cuboid is 80-120 cm, the width W1 is 40-60 cm, and the height H1 is 100-120 cm. Optionally, in some embodiments, the length L2 of the reserved groove box 200 is 50-70 cm, the width W2 is 10-15 cm, and the height H2 is 70-90 cm.

[0050] Please refer to Figure 3 , Figure 3 is a side view of the visualization box and the reserved groove box in an embodiment of the present application. Optionally, in some embodiments, the distance H3 between the bottom of the reserved groove box 200 and the bottom of the visualization box 100 is 10-30 cm. Optionally, in some embodiments, the reserved groove box 200 is a PVC reserved groove box.

[0051] Please refer to Figure 4 and Figure 5 , Figure 4 is a perspective view of the reserved groove box in another embodiment of the present application, Figure 5 is an exploded view of the reserved groove box in another embodiment of the present application. Optionally, in some embodiments, the reserved groove box 200 includes a PVC reserved groove box body 201 and a PVC containment device 202, and the inner surface of the PVC containment device 202 can coincide with three sides of the PVC reserved groove box body 201.

[0052] Optionally, in some embodiments, a pull ring 203 is arranged on the PVC reserved groove box body 201 to facilitate use.

[0053] It should be noted that, in actual test, when the soil around the reserved groove box 200 is filled, the PVC reserved groove box body 201 can be pulled out by the pull ring after slowly pouring the retaining wall mud, and then the PVC retaining wall device 202 is pulled out gently, and the concrete can be further poured at the position of the previous reserved groove box 200.

[0054] Please refer to Figure 6 , Figure 6 is a structural schematic diagram of a test device for underground continuous wall pouring in another embodiment of the application.

[0055] Optionally, in some embodiments, the material lifting device 300 comprises: a hopper 301 arranged above the open end of the visualization box 100, through which the material is conveyed to the conduit 303; a motor servo lifting or lowering device 302 connected with the hopper 301 and adjusting the feeding position of the hopper 301; a conduit 303 arranged below the pumping device 304 for conveying the material into the containing cavity; and a pumping device 304 comprising a micro pump, the feeding end of which is connected with the feeding port of the hopper 301, and the discharging end of which is connected with the feeding port of the conduit 303, and the micro pump is used for controlling the feeding speed of the conduit 303.

[0056] Please continue to refer to Figure 6 Optionally, in some embodiments, the test device 10 for underground continuous wall pouring further comprises:

[0057] A data acquisition unit 400 connected with the motor servo lifting or lowering device 302, comprising an image collection device for capturing the visual information of the concrete flow pattern, accumulation state and interface change of the pouring area in real time; the data acquisition unit 400 is used for collecting the parameter information of the current feeding speed and lifting pipe position for different concrete mix proportion and mud mix proportion, so as to model and parameterize the pouring of different concrete and mud;

[0058] The data processing and analysis unit 500 is connected with the data acquisition unit 400, and includes an information processing device and a decision and control device. The information processing device is used for pre-processing the visual information collected by the data acquisition unit 400, extracting the concrete diffusion range, flow speed, whether the segregation or honeycomb feature appears, combining the concrete and mud mixing ratio parameters, analyzing the correlation between the features and the pouring effect through a machine learning model, and generating an instruction. The instruction is fed back to the decision and control device to generate a decision instruction of feeding outlet position adjustment, pipe lifting speed optimization, and concrete or mud mixing ratio fine adjustment. The decision and control device is used for receiving the instruction of the information processing device, and driving the motor servo lifting or lowering device 302 and the pumping device 304 to perform the adjustment action.

[0059] In specific embodiments, the image collection device can be a high-definition camera, and other components of the data acquisition unit 400 can be connected with the image collection device and realize the functions of the data acquisition unit through a mode realized by existing technologies, such as a computer platform built in advance. Similarly, the data information processing device and the decision and control device can realize the functions of the data processing and analysis unit 500 through a mode realized by existing technologies, such as a data system built and integrated in advance.

[0060] The advantages of the present application will be further illustrated by the following specific practical operation methods.

[0061] Test Example 1

[0062] 1. Test purpose

[0063] Observe the quality of the concrete under the underwater forming.

[0064] 2. Test device

[0065] The test device 10 of the underground continuous wall pouring of the embodiment of the present application.

[0066] 3. Test method

[0067] (1) Preparation of concrete

[0068] The different concrete mixing ratios are controlled, and the concrete mixing ratios are prepared according to the provisions of “JGJ55 General Concrete Mixing Ratio Design Regulations”, “GB / T50107 Concrete Strength Inspection and Evaluation Standard” and “GB50204 Concrete Structure Engineering Construction Quality Acceptance Specification”. The specific mixing ratio is shown in Table 1.

[0069] Table 1 Different concrete mixing ratios

[0070]

[0071] (2) Preparation of test mud

[0072] The mud mixing ratio index is shown in Table 2. In actual production process, the quality of mud is often difficult to meet the standard. In order to verify the influence of different mud mixing ratio on the forming of underground continuous wall, the different wall protection mud slurry specific gravity is adjusted, as shown in Table 3.

[0073] Table 2 Mud mixing ratio index table

[0074]

[0075] Table 3 Test mud mixing ratio

[0076]

[0077] (3) Filling and grooving stage

[0078] The soil body corresponding to the geological condition (general underground soil body) is filled in the acrylic visualization box 100 in layers. The filling process is carried out layer by layer, and the thickness of each layer is strictly controlled to be 10-15 cm. The soil density is ensured to be consistent with the on-site geological condition by artificial ramming, so as to lay a stable foundation for the subsequent grooving.

[0079] A space simulating the underground continuous wall groove section is accurately reserved in the soil body, and a reserved groove box 200 (including a PVC reserved groove box body 201 and a PVC protection device 202) is placed. The soil is filled around the reserved groove box 200 to form a groove section prototype, and then the pre-prepared wall protection mud (M1, M2 and M3 respectively) is slowly poured around the reserved groove box 200. After the mud and soil are stable, the reserved groove box 200 (including the PVC reserved groove box body 201 and the PVC protection device 202) is taken out. The mud and soil are in full contact to form an effective wall protection to prevent the groove wall from loosening or collapsing.

[0080] (4) Concrete pouring stage

[0081] The concrete (Mix1, Mix2 and Mix3 respectively) is poured to the position of the previously reserved groove box 200. The lifting device 300 changes the feeding outlet position and lifting height of the hopper 301 by motor servo lifting or lowering the equipment 302. The nozzle distance of the pipe 303 is set to be 20 cm away from the highest surface of the concrete pouring to ensure that the center feeding is not blocked and to avoid uneven concrete pouring. The pumping device 304 controls the concrete pumping speed.

[0082] The scale line is marked outside the visualization box 100 to observe the rising height of the concrete. The data acquisition unit 400 can be used to record the concrete flow state in real time. The data processing and analysis unit 500 is used to analyze the movement state of the pipe under different mud ratios, different concrete mixing ratios and different pumping rates, so as to correct the running track of the concrete pipe under the pouring scheme.

[0083] (5) Curing stage

[0084] The upper part is sealed by the remaining mud, and the formwork is removed after 15 days of curing.

[0085] By setting different concrete mix proportions, different bentonite proportions, and different feeding speeds, the test device successfully casts 8 test pieces, as shown in Figure 7 .

[0086] 4. Test effect

[0087] Effect one: The reserved groove box 200 (including the PVC reserved groove box body 201 and the PVC enclosure device 202) set by the test device can be taken out, the soil body contact forming surface is reserved, and the reserved groove box 200 ensures that the contact surfaces of different test soils are consistent, achieving the effect of the soil body contact of the underground continuous wall scale test.

[0088] Effect two: The double-layer pullable and detachable reserved groove box structure set by the test device ensures the groove forming quality and efficiency of the groove forming device, achieving the effect of repeated use.

[0089] Effect three: The acrylic visual box 100 set by the test device prevents pouring blockage during the concrete pouring process, and the underground continuous wall is formed with high quality, achieving the effect of non-blocking of the concrete delivery conduit.

[0090] Effect four: The data processing and analysis unit 500 set by the test device is used to analyze the conduit movement state under different mud proportions, different concrete mix proportions, and different pumping rates, to correct the concrete conduit operating track under the actual pouring scheme, so as to form the digital modeling effect of the concrete underground continuous wall pouring.

[0091] Although the present application is disclosed as above, it is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present application, can make various changes and modifications, therefore the protection scope of the present application should be limited by the scope defined by the claims.

Claims

1. A test apparatus for casting underground continuous walls, characterized in that, include: A visualization enclosure, the visualization enclosure including an open end and a receiving cavity; A reserved slot box is provided inside the receiving cavity; A material conveying device is used to transport materials into the receiving cavity.

2. The test apparatus for casting underground continuous walls as described in claim 1, characterized in that, The visualization enclosure is an acrylic enclosure.

3. The test apparatus for casting underground continuous walls as described in claim 1, characterized in that, The shape of the visualization box is a cuboid, with a length of 80cm to 120cm, a width of 40cm to 60cm, and a height of 100cm to 120cm.

4. The test apparatus for casting underground continuous walls as described in claim 3, characterized in that, The reserved slot box has a length of 50cm to 70cm, a width of 10cm to 15cm, and a height of 70cm to 90cm.

5. The test apparatus for casting underground continuous walls as described in claim 4, characterized in that, The distance between the bottom of the reserved slot and the bottom of the visible box is 10cm to 30cm.

6. The test apparatus for casting underground continuous walls as described in claim 1, characterized in that, The reserved slot box is a PVC reserved slot box.

7. The test apparatus for casting underground continuous walls as described in claim 6, characterized in that, The PVC pre-reserved slot box includes a PVC pre-reserved slot box body and a PVC protective device. The inner surface of the PVC protective device can overlap with three sides of the PVC pre-reserved slot box body.

8. The test apparatus for casting underground continuous walls as described in claim 7, characterized in that, The PVC pre-reserved slot box body is equipped with a pull ring.

9. The test apparatus for casting underground continuous walls as described in claim 1, characterized in that, The material lifting device includes: funnel; A motor-servo lifting or lowering device is connected to the funnel and adjusts the feeding position of the funnel. A conduit is used to deliver materials into the receiving cavity; A pumping device includes a micropump, the inlet of which is connected to the inlet of the funnel, and the outlet of which is connected to the inlet of the conduit. The micropump is used to control the feeding speed of the conduit.

10. The test apparatus for casting underground continuous walls as described in claim 9, characterized in that, The test apparatus for casting the underground continuous wall also includes: The data acquisition unit, connected to the motor servo lifting or lowering device, includes an image collection device. The image collection device is used to capture visual information of the concrete flow pattern, accumulation state, and interface changes in the pouring area in real time. The data acquisition unit is used to collect parameter information of the current feeding speed and lifting pipe position for different concrete mix ratios and mud mix ratios, so as to model and parameterize the pouring of different concretes and muds. A data processing and analysis unit, connected to the data acquisition unit, includes an information processing device and a decision-making and control device. The information processing device preprocesses the visual information acquired by the data acquisition unit, extracts the concrete diffusion range, flow velocity, and whether segregation or honeycomb features occur. Combining the concrete and slurry mix ratio parameters, it analyzes the correlation between the features and the pouring effect through a machine learning model, generates instructions, and feeds these instructions back to the decision-making and control device to generate decision instructions for adjusting the material outlet position, optimizing the lifting speed, and fine-tuning the concrete or slurry mix ratio. The decision-making and control device receives the instructions from the information processing device and drives the motor servo to lift or lower the equipment and pumping device to perform adjustment actions.

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