CN102493499A - Model test device for measuring composite foundation lateral deformation and layered sedimentation - Google Patents

Model test device for measuring composite foundation lateral deformation and layered sedimentation Download PDF

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Publication number
CN102493499A
CN102493499A CN2011103629810A CN201110362981A CN102493499A CN 102493499 A CN102493499 A CN 102493499A CN 2011103629810 A CN2011103629810 A CN 2011103629810A CN 201110362981 A CN201110362981 A CN 201110362981A CN 102493499 A CN102493499 A CN 102493499A
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China
Prior art keywords
test
groove
drawer
composite foundation
delaminating deposition
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CN2011103629810A
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Chinese (zh)
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徐林荣
王宏贵
刘常虹
刘维正
左申
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Central South University
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Central South University
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Abstract

The invention relates to a model test device for measuring composite foundation lateral deformation and layered sedimentation. The model test device comprises a counter-force groove, a loading plate, a vertical counter-force frame, a lateral counter-force frame, a vertical jack and a model groove and is characterized in that: the left side, the right side, the rear side and the bottom of the model groove are sealed; the front side of the model groove is sealed by adopting a high-strength organic glass plate; the right side of the model groove is provided with a lateral stress measuring mechanism; and a test soil body is arranged in the model groove. The model test device disclosed by the invention is mainly suitable for a composite foundation indoor model test with remarkable lateral deformation of a soft soil foundation and the like, can be used for simulating single-layer or double-layer and multi-layer foundations, has the advantages of simple and reasonable structure and convenient and feasible conversation, can realize indoor simulation of composite foundation lateral deformation and layered sedimentation under complex conditions and can provide basis for practical engineering composite foundation design optimization and reinforced mechanism analysis.

Description

Measure the model test apparatus of composite foundation lateral deformation and delaminating deposition
Technical field
The invention belongs to the geotechnical engineering technical field, particularly a kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition.
Background technology
China Express Railway and highway construction fast development in recent years; This large-scale ew line construction will inevitably run into soft foundation; And high-speed railway and highway propose very strict control requirement to the roadbed settlement after construction; Be differential settlement behind control soft foundation stability, settlement after construction and the worker, various method for processing foundation arise at the historic moment.Composite foundation is used widely as a kind of cost-effective method for processing foundation, but the research of its reinforcement mechanism, settlement calculation method scheduling theory lags behind engineering practice.Though field trial can provide more directly data reliably, can directly instruct engineering practice, the test period is long, and expense is high, and influence factor is many, and it is infeasible studying one by one through field trial.And indoor model test is workable; The research object many for influence factor, that the mechanism of action is complicated; Be easy to through the adjustment test parameters with changing test conditions wherein or several factors of specific aim research; Thereby disclose the essence of engineering problem, become the important means of studying the composite foundation proterties, inquiring into its mechanism.
Can model test apparatus reflect that the actual loading fringe conditions is the key of indoor model test success or not.In the soft soil roadbed design, settlement Control is one of sixty-four dollar question, and soft soil roadbed under the embankment load action side direction distortion be the key factor that influence roadbed final settlement size significantly, while lateral displacement speed also is the governing factor of roadbed filling.Week mirror academician (1999) has analysed the lateral deformation of the soil body comprehensively, thinks all influences of considered lateral deformation in 3 stages of sedimentation (immediate settlement, consolidation settlement and secondary consolidation settlement).And all adopted the rigid boundary in the existing model investigation mostly, and limited the development of lateral deformation, have than big-difference with on-the-spot fringe conditions, accuracy of experimental results must receive very big influence, is difficult to reflect actual stress deformation characteristic.Soil body delaminating deposition is the important indicator of research composite foundation settling character and reinforcement mechanism, and existing model testing mainly is employed in directly to be buried sedimentation underground and mark and test the inside soil body sedimentation in the test soil body, but when testing the soil body and being soft clay; Because its stickiness is big; The sedimentation mark of directly burying underground is covered by the soil body in process of the test easily, and loss marker causes and can not Continuous Tracking measure deformation result; Can not get expected results, cause the waste of manpower and materials.Therefore; How according to actual soil layer situation with receive force boundary condition; The model test apparatus that design is complementary has with it become the problem that presses for solution when instructing the composite foundation construction with design optimization in the engineering reality with the stress deformation characteristic of reasonable, easy, effective analog composite ground.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and a kind of simple in structure, influence that can take into full account soil lateral is provided; More meet on-the-spot fringe conditions, can study the mensuration composite foundation lateral deformation of composite foundation stabilization mechanism and the model test apparatus of delaminating deposition more accurately.
A kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition; Comprise counter-force groove, load plate, vertical reaction frame, horizontal reaction frame, vertical jack and model groove; The left and right sides of said model groove, rear side and bottom seals; High-strength poly (methyl methacrylate) plate sealing is adopted in the front side of said model groove, and the right side is equipped with the lateral force measuring mechanism in the said model groove, and the left side of the stressed measuring mechanism of side direction is provided with the test soil body in the said model groove.
Among the present invention, said lateral force measuring mechanism comprises framework, slide rail, drawer, spring and displacement meter, and the right side inwall of said model groove is close on the right side of said framework; Be equipped with many in the said framework to slide rail; On every pair of said slide rail drawer is installed, a side of said drawer contacts with the said test soil body, and opposite side passes through the spring roof pressure on the inwall of the right side of said model groove; Be provided with silicagel pad between the said drawer and the said test soil body, said drawer is provided with displacement meter.
Among the present invention, drawing on the said high-strength poly (methyl methacrylate) plate has level and vertical scale grid.
Among the present invention; The said test soil body is provided with a plurality of delaminating deposition marks in vertical direction; Said delaminating deposition is designated as the little object of light weight volume, and said delaminating deposition target front side contacts with said high-strength poly (methyl methacrylate) plate, and rear side is installed in the said test soil body; A plurality of said delaminating deposition mark on same vertical direction connects with cord, confirms in the said adjacent delaminating deposition mark spacing of same vertical direction.
Among the present invention, be reserved with the space between the said adjacent drawer.
Among the present invention, said silicagel pad is bigger by 10%~15% than the contact surface of the said drawer that contacts with it.
Adopt such scheme, the present invention is provided with drawer in soil body side, and on drawer, is provided with spring; Therefore can take into full account the influence of soil lateral, more meet on-the-spot fringe conditions, can study composite foundation stabilization mechanism more accurately; In addition can be through adjustment drawer size simulated soil body lift height; Simulate the lateral deformation of the different soil bodys through changing the elastic coefficient, once more, can gather soil body delaminating deposition value accurately through the delaminating deposition mark.
In sum, the present invention mainly is applicable to the significant composite foundation indoor model tests of lateral deformation such as soft foundation, can simulate individual layer or bilayer and multistrata foundation, and is simple and reasonable, and observation is convenient feasible; Can realize the lab simulation of composite foundation lateral deformation and delaminating deposition under the complex conditions, can be actual engineering composite foundation design optimization and reinforcement mechanism analysis foundation is provided.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is a model groove I-I sectional drawing embodiment illustrated in fig. 1;
Fig. 3 is an embodiment long slab long-short pile composite foundation model test soil body lateral deformation regularity of distribution curve;
Fig. 4 is an embodiment long slab long-short pile composite foundation model test soil body deep settlement regularity of distribution curve;
In the accompanying drawing 1 to 4,1 is the model groove, and 2 is the counter-force groove, and 3 is vertical reaction frame, and 4 is horizontal reaction beam, and 5 is vertical jack, and 6 is load plate, and 7 is framework, and 8 is drawer, and 9 is slide rail, and 10 is spring, and 11 is silica gel, and 12 is displacement meter, and 13 are the delaminating deposition mark.
The specific embodiment
Below in conjunction with accompanying drawing, specify the specific embodiment of the present invention.
A kind of model test apparatus that can measure soil lateral and delaminating deposition, this experimental rig comprises model groove 1, counter-force groove 2, vertical reaction frame 3; Horizontal reaction beam 4, vertical jack 5, load plate 6; Framework 7, drawer 8, slide rail 9; Spring 10, silicagel pad 11, displacement meter 12 and delaminating deposition mark 13.Said model groove 1 is used for the filling test soil body, and described vertical reaction frame 3 is fixed in the counter-force groove 2, and described horizontal reaction beam 4 is connected between the vertical reaction frame 3 through high-strength bolt; Described vertical jack 5 places between horizontal reaction beam 4 and the load plate 6, and said load plate 6 places on the test soil body, and described model groove 1 is a rectangular box; The bottom of model groove 1 and the left and right sides and rear side inwall are steel plate; The front side inwall is provided with high-strength poly (methyl methacrylate) plate, and described framework 7 is fixed on model groove 1 inner right side, and described drawer 8 is installed in the framework 7 through slide rail 9; Between drawer 8 and the casing right side inwall spring 10 is set; Described silicagel pad 11 places drawer 8 fronts, and described displacement meter 12 is installed in the left side of drawer, and it is inboard that described delaminating deposition mark 13 is arranged in high-strength poly (methyl methacrylate) plate.
The preparation process of this experimental rig:
The first step is according to design of model testing similar proportion and analogue formation groove 1.
1) adopt the channel-section steel weldering to make the chan frame of support and fixed model groove 1 inner other member.
2) steel plate with model groove 1 left and right sides, rear side and bottom interior wall is welded in the chan frame respectively.
3) at model groove 1 front side inwall high-strength poly (methyl methacrylate) plate is installed, is bonded in chan frame with structure glue, and with the slit between structure glue sealing itself and other inwall of model groove.
In second step, make and install the model groove right side boundary that to measure soil lateral.
1) prepares framework 7 according to design size, framework 7 is fixed in model groove 1 inner right side.
2) preparation drawer 8 is provided with drawer 8 is installed in the framework 7 through slide rail 9, reserves certain gap between each drawer 8, prevents to influence each other in drawer 8 activities.
3) design and customization spring 10, the side direction resistance coefficient through the test soil body and consider drawer 8 and spring 10 self stabilities are confirmed the quantity and the coefficient of elasticity of spring 10.
4) mounting spring 10, and spring 10 is arranged between drawer 8 back sides and the model groove 1 right side inwall, and the draw-in groove of fixing spring 10 is set at drawer 8 back sides.
5) at each drawer back side a displacement meter 12 is installed respectively, is used to test the displacement data that makes the collection drawer.
6) silicagel pad 11 is suspended in drawer 8 fronts, requires silicagel pad 11 all positive big by 10%~15% up and down, can not infiltrate drawer 8 slits with the guarantee test soil body than drawer 8.
In the 3rd step, make and install delaminating deposition mark 13.
1) the high-strength poly (methyl methacrylate) plate of inwall is drawn level and vertical scale grid in the front side.
2) make the sedimentation mark.Single sedimentation mark adopts square light plastic goods, because its light weight volume is little, places the soil body very little to the deformation effect of model clay, and square top and bottom are easy to soil body contact, with the common sedimentation of the soil body.
3) be through together with sedimentation mark perforation, and with cord, confirm the spacing between the sedimentation mark according to testing program after, through the cord knotting sedimentation mark is fixed on the cord, process delaminating deposition mark 13.
4) with the delaminating deposition mark of processing 13, be arranged on the high-strength poly (methyl methacrylate) plate in model groove 1 front side by design attitude, the one of which end is fixed on model groove 1 bottom, the other end is fixed on outside the model groove 1.An aperture is worn in the one side center that sedimentation mark and poly (methyl methacrylate) plate join,, and smear glycerine, reduce the friction of itself and glass plate at this face as settlement observation point.
In the 4th step, lay model groove 1, the assembling loading system.
1) the model groove of making 1 is placed between the counter-force groove 2.
2) with about vertical reaction frame 3 place left and right sides counter-force groove 2 respectively, and use bolt.
3) horizontal reaction beam 4 is installed between the left and right sides reaction frame 3 through high-strength bolt, vertical reaction frame 3 is provided with the vertical bolt hole of a row, can regulate the height of horizontal reaction beam 4.
The course of work of this experimental rig:
The first step, the filling test soil body in the model groove 1, embedding Model Pile, model band drain and dependence test element in the soil body (meter etc. is pressed in pressure cell, hole).
Second step, lay load plate 6 at test soil body top, adjust horizontal reaction beam 4 height, vertical jack 5 is installed, should guarantee that vertical jack 5 places load plate 5 central authorities, prevents unbalance loading.
The 3rd step was connected in displacement meter 12 and dependence test element on the data collecting instrument through lead, and data collecting instrument is connected with computer through data wire.
In the 4th step, before on-test, the service data acquisition system with the experimental data zero clearing, is removed the top constraint of delaminating deposition mark 13, and is manually write down each sedimentation target initial position.
The 5th step, prepare to load, begin test.
In the 6th step, collect experimental data.Press certain frequency acquisition test data through data collecting system, experimental data is stored and is called with the electrical form mode, simultaneously, manually writes down each sedimentation target testing position by certain frequency.
In the 7th step, the Processing Test data are drawn correlation curve, analyze composite foundation lateral deformation and settling character.
As shown in Figure 2, embodiment is simulation long slab-long-short pile composite foundation, and the model geometric similar proportion was got 1: 16, model flute length 1750mm, wide 1200mm, high 2000mm; The long 600mm of single drawer, wide 1180mm, high 195mm, totally 10 drawers; The test soil body is got and on-the-spot close weak soil, is 94.8KN through calculating single drawer rear spring global stiffness, and number of springs is got 12, and spring length is got 200mm.Fig. 3~shown in Figure 4 is one group of test data of embodiment, and the test rule is good.
More than a kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition provided by the present invention has been carried out detailed introduction, all can smooth implementation for one of ordinary skill in the art.

Claims (6)

1. model test apparatus of measuring composite foundation lateral deformation and delaminating deposition; Comprise counter-force groove, load plate, vertical reaction frame, horizontal reaction frame, vertical jack and model groove; It is characterized in that: the left and right sides of said model groove, rear side and bottom seals; High-strength poly (methyl methacrylate) plate sealing is adopted in the front side of said model groove, and the right side is equipped with the lateral force measuring mechanism in the said model groove, and the left side of the stressed measuring mechanism of side direction is provided with the test soil body in the said model groove.
2. a kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition according to claim 1; It is characterized in that: said lateral force measuring mechanism comprises framework, slide rail, drawer, spring and displacement meter; The right side inwall of said model groove is close on the right side of said framework, is equipped with manyly to slide rail in the said framework, on every pair of said slide rail drawer is installed; One side of said drawer contacts with the said test soil body; Opposite side on the inwall of the right side of said model groove, is provided with silicagel pad between the said drawer and the said test soil body through the spring roof pressure, and said drawer is provided with displacement meter.
3. a kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition according to claim 1 is characterized in that: drawing on the said high-strength poly (methyl methacrylate) plate has level and vertical scale grid.
4. a kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition according to claim 3; It is characterized in that: the said test soil body is provided with a plurality of delaminating deposition marks in vertical direction; Said delaminating deposition is designated as the little object of light weight volume; Said delaminating deposition target front side contacts with said high-strength poly (methyl methacrylate) plate; Rear side is installed in the said test soil body, and a plurality of said delaminating deposition mark on same vertical direction connects with cord, confirms in the said adjacent delaminating deposition mark spacing of same vertical direction.
5. a kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition according to claim 2 is characterized in that: be reserved with the space between the said adjacent drawer.
6. a kind of model test apparatus of measuring composite foundation lateral deformation and delaminating deposition according to claim 2 is characterized in that: said silicagel pad is bigger by 10%~15% than the contact surface of the said drawer that contacts with it.
CN2011103629810A 2011-11-16 2011-11-16 Model test device for measuring composite foundation lateral deformation and layered sedimentation Pending CN102493499A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103091471A (en) * 2013-01-25 2013-05-08 同济大学 Model for promoting solidification of hydraulic fill and test method for model
CN103711153A (en) * 2014-01-20 2014-04-09 山东大学 Steel brace simulation device in deep foundation pit construction mechanical model test
CN103743886A (en) * 2014-01-19 2014-04-23 天津城建大学 Lateral displacement type multifunctional model tank experiment system
CN103837357A (en) * 2014-01-15 2014-06-04 中国矿业大学 Structure of surface-deformation-resisting test platform and design method thereof
CN105527389A (en) * 2016-03-02 2016-04-27 山东交通学院 Jack-based experiment model and method for simulating uneven settlement of foundation
CN105604104A (en) * 2016-03-02 2016-05-25 山东交通学院 Experiment model and method for simulating differential settlement of foundation based on air bag method
CN105604105A (en) * 2016-03-02 2016-05-25 山东交通学院 Experiment model and method for simulating differential settlement of foundation based on water bag method
CN105891000A (en) * 2016-03-31 2016-08-24 江苏省地质调查研究院 Intelligent test device for soil body layering deformation monitoring, measurement calibration method and evaluation method
CN107024574A (en) * 2017-05-01 2017-08-08 刘华 A kind of soil arching effect simulation test device and test method
CN108760616A (en) * 2018-05-29 2018-11-06 福州大学 A kind of bath scaled model experimental device and experimental method of the simulation lateral soil movement that speed is controllable
CN108931422A (en) * 2018-04-27 2018-12-04 中铁十九局集团第工程有限公司 Middle compression often consolidates the measuring method of soil base lateral extrusion deformation under embankment load
CN108951721A (en) * 2018-06-29 2018-12-07 江南大学 A kind of method of strong rammer gangue ground dynamic stress
CN109211669A (en) * 2018-10-26 2019-01-15 淮阴工学院 The often measuring method that lateral extrusion deforms in consolidation batt ground
CN110160725A (en) * 2019-06-14 2019-08-23 中南大学 A kind of experimental rig and method of simulated formation differential settlement and the earthquake initiation tomography three-dimensional changing of the relative positions
CN112525150A (en) * 2020-11-27 2021-03-19 贵州建工集团第一建筑工程有限责任公司 Building foundation settlement monitoring device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1200163A1 (en) * 1984-06-22 1985-12-23 Ленинградский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Инженерно-Строительный Институт Arrangement for rock testing
SU1425516A1 (en) * 1986-10-28 1988-09-23 Челябинский Политехнический Институт Им.Ленинского Комсомола Installation for testing ground samples for three-axes compression
CN101086494A (en) * 2007-07-03 2007-12-12 浙江大学 Foundation and slope engineering model test platform
CN101832993A (en) * 2010-05-20 2010-09-15 同济大学 Semi-module test box for dynamic compaction reinforced foundation model test
CN201681023U (en) * 2010-05-07 2010-12-22 中国科学院武汉岩土力学研究所 Tester for testing bearing capacity and deformation characteristics of foundation soil in room

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1200163A1 (en) * 1984-06-22 1985-12-23 Ленинградский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Инженерно-Строительный Институт Arrangement for rock testing
SU1425516A1 (en) * 1986-10-28 1988-09-23 Челябинский Политехнический Институт Им.Ленинского Комсомола Installation for testing ground samples for three-axes compression
CN101086494A (en) * 2007-07-03 2007-12-12 浙江大学 Foundation and slope engineering model test platform
CN201681023U (en) * 2010-05-07 2010-12-22 中国科学院武汉岩土力学研究所 Tester for testing bearing capacity and deformation characteristics of foundation soil in room
CN101832993A (en) * 2010-05-20 2010-09-15 同济大学 Semi-module test box for dynamic compaction reinforced foundation model test

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王宏贵: "长板-短桩复合地基加固机理与工程应用研究", 《中国博士学位论文全文数据库》, 17 October 2011 (2011-10-17) *

Cited By (22)

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Publication number Priority date Publication date Assignee Title
CN103091471A (en) * 2013-01-25 2013-05-08 同济大学 Model for promoting solidification of hydraulic fill and test method for model
CN103091471B (en) * 2013-01-25 2016-08-03 同济大学 A kind of model accelerating rinse fill consolidation and test method thereof
CN103837357A (en) * 2014-01-15 2014-06-04 中国矿业大学 Structure of surface-deformation-resisting test platform and design method thereof
CN103837357B (en) * 2014-01-15 2019-03-26 中国矿业大学 A kind of construction and its design method of anti-earth's surface deformation test platform
CN103743886B (en) * 2014-01-19 2015-07-15 天津城建大学 Lateral displacement type multifunctional model tank experiment system
CN103743886A (en) * 2014-01-19 2014-04-23 天津城建大学 Lateral displacement type multifunctional model tank experiment system
CN103711153A (en) * 2014-01-20 2014-04-09 山东大学 Steel brace simulation device in deep foundation pit construction mechanical model test
CN105604104A (en) * 2016-03-02 2016-05-25 山东交通学院 Experiment model and method for simulating differential settlement of foundation based on air bag method
CN105604105A (en) * 2016-03-02 2016-05-25 山东交通学院 Experiment model and method for simulating differential settlement of foundation based on water bag method
CN105527389A (en) * 2016-03-02 2016-04-27 山东交通学院 Jack-based experiment model and method for simulating uneven settlement of foundation
CN105891000A (en) * 2016-03-31 2016-08-24 江苏省地质调查研究院 Intelligent test device for soil body layering deformation monitoring, measurement calibration method and evaluation method
CN107024574A (en) * 2017-05-01 2017-08-08 刘华 A kind of soil arching effect simulation test device and test method
CN107024574B (en) * 2017-05-01 2019-09-27 泉州开云网络科技服务有限公司 A kind of soil arching effect simulation test device and test method
CN108931422A (en) * 2018-04-27 2018-12-04 中铁十九局集团第工程有限公司 Middle compression often consolidates the measuring method of soil base lateral extrusion deformation under embankment load
CN108931422B (en) * 2018-04-27 2020-10-13 中铁十九局集团第一工程有限公司 Measuring and calculating method for lateral extrusion deformation of foundation under roadbed load
CN108760616B (en) * 2018-05-29 2020-11-03 福州大学 Speed-controllable model experiment device and speed-controllable model experiment method for simulating soil body lateral movement
CN108760616A (en) * 2018-05-29 2018-11-06 福州大学 A kind of bath scaled model experimental device and experimental method of the simulation lateral soil movement that speed is controllable
CN108951721A (en) * 2018-06-29 2018-12-07 江南大学 A kind of method of strong rammer gangue ground dynamic stress
CN109211669A (en) * 2018-10-26 2019-01-15 淮阴工学院 The often measuring method that lateral extrusion deforms in consolidation batt ground
CN110160725A (en) * 2019-06-14 2019-08-23 中南大学 A kind of experimental rig and method of simulated formation differential settlement and the earthquake initiation tomography three-dimensional changing of the relative positions
CN110160725B (en) * 2019-06-14 2020-12-15 中南大学 Test device and method for simulating stratum differential settlement and earthquake-induced fault three-dimensional dislocation
CN112525150A (en) * 2020-11-27 2021-03-19 贵州建工集团第一建筑工程有限责任公司 Building foundation settlement monitoring device

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