CN105203080A - Roadbed settlement observation device and observation method thereof - Google Patents
Roadbed settlement observation device and observation method thereof Download PDFInfo
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- CN105203080A CN105203080A CN201510709701.7A CN201510709701A CN105203080A CN 105203080 A CN105203080 A CN 105203080A CN 201510709701 A CN201510709701 A CN 201510709701A CN 105203080 A CN105203080 A CN 105203080A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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Abstract
The invention discloses a roadbed settlement observation device and an observation method thereof, and relates to the road construction technical field. The roadbed settlement observation device includes a settlement water cup, connecting pipes and a measurement system; the bottom of the settlement water cup is fixedly provided with a water inlet pipe, a water outlet pipe and an exhaust pipe; the water inlet pipe is connected with a measuring pipe, the water outlet pipe is connected with a vacuumization device, and the exhaust pipe is connected with outside air; the joint of the connecting pipe and the measurement system is further connected with a water storage barrel through a water storage barrel connecting pipe, the joint is provided with a three-way valve structure for communicating the three pipelines. The observation method includes the stages: a first stage, mounting and laying the system; a second stage, vacuumizing the settlement water cup and the connecting pipes; and the third stage, measuring the liquid level height. After adopting the observation device and the observation method thereof, the device can achieve settlement observation without construction interference during roadbed construction, also can perform long-term observation in a usage period, and is low in construction cost and easy to operate.
Description
Technical field
The present invention relates to technical field of road construction.
Background technology
Along with the fast development of China's economy, the Modern Traffic such as highway, railway infrastructure construction increases gradually.In order to ensure the safety and stablization of structure, realize the high-speed smooth operation of vehicular traffic, the settlement Control of road structure becomes crucial.Therefore, the settlement observation of subgrade construction phase and operating period is carried out significant.Ground consolidation densification situation under embankment loading can be grasped by work progress settlement observation, carry out information-aided construction and settlement after construction prediction according to settlement observation result.After being completed, settlement observation can understand the long-term creep deformational behavior of ground.
Be widely used in the equipment mainly settlement plate of highway and railway roadbed settlement of foundation observation at present.Settlement plate is made up of steel sole plate, metal measuring staff and protection loop bar; steel sole plate is imbedded in roadbed or ground; along with subgrade construction can connect high metal measuring staff and protection loop bar, use the method for measurement of the level can record the settling amount on measuring staff top, i.e. the settling amount of steel sole plate burial place.It is comparatively large to roadbed construction infection that application settlement plate carries out settlement observation, be subject to large-scale construction equipment clash into after fragile and repair difficulty, also can affect the construction quality of roadbed near settlement plate burial place simultaneously.For highway and railway bed, the settlement observation during settlement plate method can only be used for subgrade construction, once highway pavement or railroad track start after construction just cannot spreading measuring staff again, cannot continue to observe its sedimentation between its operating period.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, a kind of the Settlement Observation equipment and observation procedure thereof are provided, observing without construction hindered falling of construction period can be realized, also the long-term observation of operating period can be carried out, cost is low, little to environmental impact, simple to operation.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of the Settlement Observation equipment, comprises sedimentation water tumbler, connecting pipe and measuring system; Water inlet pipe, rising pipe and gas outlet is fixed with bottom sedimentation water tumbler, sedimentation water tumbler inner chamber is all stretched in one end of gas outlet and water inlet pipe, one end of rising pipe is concordant with the bottom surface of sedimentation water tumbler inner chamber, and the other end of water inlet pipe, rising pipe and gas outlet stretches out sedimentation water tumbler outside; Measuring system comprises measuring tube; Water inlet pipe is connected with measuring tube by connecting pipe, and rising pipe is connected with vacuum extractor by connecting pipe, and gas outlet is communicated with outside air by installing valvular connecting pipe; The junction of connecting pipe and measuring system is also connected with water storage barrel by water storage barrel connecting pipe, and this junction is provided with the 3-way valve door of connection three pipelines; 3-way valve door comprises the water inlet pipe valve be connected with connecting pipe, the measuring tube valve be connected with measuring tube, the water storage barrel connecting pipe valve be connected with water storage barrel connecting pipe and support, and water inlet pipe valve, measuring tube valve and water storage barrel connecting pipe valve are all fixed on support.
As further technical scheme, described measuring system also comprises surveyors' staff, and measuring tube is fixed at surveyors' staff side, and measuring tube and surveyors' staff are all fixed at observes pier upper surface.
As further technical scheme, sedimentation water tumbler comprises bearing at the bottom of cup, some glasss of bottom bracings and cup, and cup bottom bracing is distributed at the bottom of cup and cup between bearing uniformly, and the space in cup is described inner chamber.
As further technical scheme, described water inlet pipe, rising pipe and gas outlet are L shape round steel pipe, and water inlet pipe, rising pipe and the gas outlet other end stretch out between bearing at the bottom of cup and cup.
As further technical scheme, one end that described water inlet pipe stretches into cup is provided with hydraucone.
As further technical scheme, described connecting pipe is nylon tube, and outside is provided with protection tube.
An observation procedure for the Settlement Observation equipment, comprises the steps:
First stage, arranging system is installed:
A, excavate groove in position, roadbed measured point along transversal section, sedimentation water tumbler and connecting pipe are put into groove, measuring system is fixedly installed on the observation pier outside roadbed toe;
B, be tightly connected with water inlet pipe, rising pipe and gas outlet respectively one end of connecting pipe, the other end of connecting pipe stretches out outside groove, is communicated with measuring tube, vacuum extractor and outside air respectively by valve, backfill compacting groove;
Subordinate phase, vacuumizes sedimentation water tumbler and connecting pipe:
C, open water inlet pipe valve, measuring tube valve and water storage barrel connecting pipe valve, in measuring tube, slow water filling, closes water inlet pipe valve after the connecting pipe of water inlet pipe starts water-filling, continues to the slow water filling of measuring tube; After water is full of water storage barrel connecting pipe, the water storage barrel connecting pipe other end is placed in water storage barrel, ensures the leakproofness of 3-way valve door;
D, closedown measuring tube valve, continue water filling in measuring tube and make its water level higher;
E, close gas outlet, and use vacuum extractor to bleed from rising pipe uninterruptedly, until after forming vacuum in cup and connecting pipe, open water inlet pipe valve;
F, start to slow down the speed of evacuation after water outlet until stop until rising pipe, close water storage barrel connecting pipe valve;
Phase III, measure liquid level elevation:
G, open valve on the connecting pipe that is connected with gas outlet and measuring tube valve, slowly add water in measuring tube, continue to add water after water outlet stablized by rising pipe, stop afterwards adding water, after buret liquid level stabilizing to be measured, read measuring tube middle water level height;
H, again slowly to add water in measuring tube, reading again after liquid level stabilizing, until adjacent twice difference of reading is not more than 1mm, reading last numerical value is this survey measurements, and measuring tube reading is added with the elevation of observation mark on observation pier and is this time and measures measuring point elevation.
I, measured after, stop to measuring tube water filling, until rising pipe no longer water outlet, disconnect the connection of water inlet pipe and measuring system, remove measuring system and 3-way valve door, and protect the nylon tube head of gas outlet, water inlet pipe, rising pipe; When again carrying out settlement observation, repeat steps A-H, the difference of the measuring point elevation of twice measurement is the subgrade settlement of sedimentation water tumbler position.
As further technical scheme, in described steps A, channel excavation should arrange the gradient of the downward 3%-5% to toe direction, the sand of one deck 5cm ~ 10cm first should be covered during backfill, fill out subgrade soils again after compacting, finally by groove compacting, guarantee that the connecting pipe of rising pipe can draining smoothly.
As further technical scheme, in described step G and H, the time of measuring tube liquid level stabilizing is no less than 5min.
The beneficial effect adopting technique scheme to produce is:
Utilize law of connected vessels, bury sedimentation water tumbler in roadbed or on ground underground, carry out settlement observation by measuring system, connecting sedimentation water tumbler and measuring system by connecting pipe, is that medium is measured with water.Observing without construction hindered falling of construction period can be realized, also can carry out the long-term observation of operating period, there is the advantage that cost is low, simple to operation, little to environmental impact.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of sedimentation water tumbler 1 in Fig. 1;
Fig. 3 is the B direction view of Fig. 2;
Fig. 4 is the A-A cut-open view of Fig. 2;
Fig. 5 is the structural representation of 3-way valve door 5 in Fig. 1;
Fig. 6 is using state schematic diagram of the present invention.
In figure: 1, sedimentation water tumbler; 11, cup; 12, cup bottom bracing; 13, bearing at the bottom of cup; 14; Water inlet pipe; 15, rising pipe; 16, gas outlet; 17, bituminous seal layer; 18, hydraucone; 2, connecting pipe; 3, measuring system; 31, surveyors' staff; 32, measuring tube; 33, pier is observed; 4, vacuum extractor; 5,3-way valve door; 51, water inlet pipe valve; 52, measuring tube valve; 53, water storage barrel connecting pipe valve; 54, support; 6, water storage barrel; 7, protection tube.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
The principle available liquid pressure of linker is explained.If be equipped with same liquid in U-shaped glass tube, if liquid is static immobilising.The pressure of the liquid in left pipe, necessarily equals the pressure of the liquid in right pipe.Because what linker was in-built is same liquid, the density of two fluid columns in left and right is identical, according to the formula p=ρ gh of liquid pressure, only has when the height of both sides fluid column is equal, and both sides fluid column could be equal to the pressure at middle part.So in the immobilising situation of liquid, the liquid level in each container of linker should keep equal.Law of connected vessels has a wide range of applications in engineering.As various liquid level meter (water-level gauge, oil level indicator etc.), mercury vacuum gauge, fluid column formula draft gauge, differential pressure gauge, the pick-up unit etc. of gas leakage, all applies law of connected vessels and makes.
As shown in figures 1 to 6, be an embodiment of a kind of the Settlement Observation equipment of the present invention, comprise:
Sedimentation water tumbler 1, connecting pipe 2 and measuring system 3, sedimentation water tumbler 1 is connected with measuring system 3 by connecting pipe 2.Sedimentation water tumbler 1 comprises bearing 13 at the bottom of cup 11, three cup bottom bracings 12 and cup, cup bottom bracing 12 to be distributed at the bottom of cup 11 and cup between bearing 13 uniformly, can effectively play a supporting role to cup 11, stabilized structure, convenient installation, improve service life of equipment and service efficiency.Fix bottom cup 11 and be provided with water inlet pipe 14, rising pipe 15 and gas outlet 16 uniformly, gas outlet 16 all stretches in cup 11 with one end of water inlet pipe 14, cup 11 inside exhaust pipe 16 is apart from cup top 5mm, water inlet pipe 14 is apart from cup top 30mm, one end of rising pipe 15 is concordant with cup 11 bottom surface, and the other end of water inlet pipe 14, rising pipe 15 and gas outlet 16 stretches out cup 11 outside.Gas outlet 16 is set separately, the air pressure in cup 11 can be balanced when rising pipe 15 water outlet, ensure that flowing water is smooth and easy.
Water inlet pipe 14 is connected with measuring system by connecting pipe 2, forms a linker structure, to measure.Rising pipe 15 is connected with vacuum extractor 4 by connecting pipe 2, and the convenient operation vacuumized cup 11 inside, there is bubble in anti-sealing, affects measuring accuracy.Gas outlet 16 is connected with one end of connecting pipe 2, and the other end of this connecting pipe 2 is communicated with outside air by valve, can manipulate being communicated with isolated of cup 11 and outside air, conveniently carries out vacuumizing and the operation of survey measurements.
Measuring system 3 comprises surveyors' staff 31, measuring tube 32, measuring tube 32 is fixed at surveyors' staff 31 side, pass through levelling process, dip stick can be made to indicate the height of liquid level in measuring tube 32 accurately, surveyors' staff 31 and measuring tube 32 are fixed at the upper surface of observation pier 33, observation pier 33 is embedded in the toe side of roadbed, upper surface is lower than ground, road is made to form the structure of a channel form with observation pier 33, four side fragments of brick of this structure assemble reinforcing, can cave in by anti-channel form texture edge here, and reserve the hole holding connecting pipe 2.This structure makes measuring system 3 stabilized structure, and usability is more stable, is convenient to observe pipeline water outlet situation, further ensures the precision of measurement.
Water inlet pipe 14 is communicated with measuring tube 32 by connecting pipe 2, is also provided with 3-way valve door 5 between measuring tube 32 and connecting pipe 2; 3-way valve door 5 comprises the water inlet pipe valve 51 be connected with connecting pipe 2, the measuring tube valve 52 be connected with measuring tube 32, the water storage barrel connecting pipe valve 53 be connected with water storage barrel connecting pipe and support 54, water inlet pipe valve 51, measuring tube valve 52 and water storage barrel connecting pipe valve 53 are all fixed on support 54, support 54 inner hollow is communicated with each valve, make current clear and coherent smooth, this 3-way valve door 5 is all played a supporting role to above-mentioned three valves and measuring tube 32.Water storage barrel connecting pipe is also connected with water storage barrel 6.When vacuumizing, one end of water storage barrel connecting pipe being goed deep into, in water storage barrel 6, the sealing of system can be ensured, avoiding in water, entering air and forming bubble.
Preferably, cup 11 by internal diameter be 120mm, external diameter is 130mm, the seamless steel cylinder composition of high 180mm, sealed bottom throat thickness 10mm, diameter is the circular steel plate of 150mm, and top is thickness 10mm, and diameter is the circular bowl cover of 150mm.Disk at the bottom of cup welds three long 40mm in equilateral triangle, and diameter is the cup bottom bracing of 8mm, and at the bottom of cup bottom bracing 12 glasss, bearing 13 welds.Base plate welds the weldless steel tube that three external diameters are 13mm, thick 1mm, i.e. water inlet pipe 14, rising pipe 15 and gas outlet 16.Scope of selecting materials is wide, and bearing is convenient, reduce further use cost.
At the bottom of cup 11, cup bottom bracing 12 and cup, bearing 13 is stainless steel, and its inner and outer surface layers is equipped with galvanized anticorrosive layer, prevents sedimentation water tumbler 1 by soil or air corrosion, extension device serviceable life.Bottom in cup 11 is provided with the thick bituminous seal layer 17 of 3-5mm, further increases the sealing of cup 11.
One end that water inlet pipe 14 stretches into cup 11 is provided with hydraucone 18, and the water outlet diameter of this hydraucone 18 is 20mm, and can reduce the surface tension of the water delivering orifice of water inlet pipe 14, anti-sealing is piled up at water outlet, affects measuring accuracy.
Water inlet pipe 14, rising pipe 15 and gas outlet 16 are L shape round steel pipe, and water inlet pipe 14, rising pipe 15 and gas outlet 16 other end stretch out between bearing 13 at the bottom of cup 11 and cup.
Connecting pipe 2 is nylon tube, wall thickness 1mm, diameter 13mm; Outside is provided with protection tube 7.For ensureing the reliability of connecting pipe 2, nylon tube should adopt whole pipe, and joint is not established in centre.Protection tube 7 adopts ABS or pvc pipe; each subgrade settlement measuring point uses an independent protection tube 7, and the draw-tube adopting diameter larger between protection tube 7 connects, and flexible pipe range is not less than 50cm; interface adopts geotextile environmental sealing and tightens with steel wire, prevents silt from entering protection tube.Protection tube can be made like this to adapt to roadbed inner horizontal displacement and sedimentation.
This equipment is utilized to the concrete grammar that subgrade settlement situation is observed to be:
First stage, arranging system is installed:
Excavate groove in position, roadbed measured point along transversal section, sedimentation water tumbler 1 and connecting pipe 2 are put into groove, measuring system 3 is fixedly installed on the observation pier 33 outside roadbed toe.In this step, elder generation is direct to be imbedded observation pier 33 in the ground of roadbed toe, then surveyors' staff 31 and measuring tube 32 is fixed on observation pier 33.Channel excavation should arrange the gradient of the downward 3%-5% to toe direction, first should cover the sand of one deck 5cm ~ 10cm, fill out subgrade soils again after compacting during backfill, finally by groove compacting, guarantees that the connecting pipe 2 of rising pipe 15 can draining smoothly.
Be tightly connected with water inlet pipe 14, rising pipe 15 and gas outlet 16 respectively one end of connecting pipe 2, the other end of connecting pipe 2 stretches out outside groove, is communicated with measuring tube 32, vacuum extractor 4 and outside air respectively by valve.Backfill compacting groove, what make that sedimentation water tumbler 1 and connecting pipe 2 can be stable is fixed in roadbed, ensures the stability measured and accuracy.After backfill is good, sedimentation water tumbler 1 submerges in roadbed completely, and the upper surface of observation pier 33 in measuring system 3 is positioned at the below of connecting pipe 2 port, the convenient state inferring sedimentation water tumbler 1 inside according to pipeline water outlet situation.
Subordinate phase, vacuumizes sedimentation water tumbler and connecting pipe:
Open water inlet pipe valve 51, measuring tube valve 52 and water storage barrel connecting pipe valve 53, slow water filling in measuring tube 32, the water outlet situation of the connecting pipe 2 of rising pipe 15 is observed from observation Dun33Chu, after the connecting pipe 2 of water inlet pipe 14 starts water-filling, close water inlet pipe valve 51, continue to measuring tube 32 slowly water filling; After water is full of water storage barrel connecting pipe, the water storage barrel connecting pipe other end is placed in water storage barrel 6, under the surface level that the port of water storage barrel connecting pipe is remained in water storage barrel 6, ensures the leakproofness of 3-way valve door 5.
Close measuring tube valve, continue water filling in measuring tube 32 and make its water level higher, treat that follow-up measuring process uses.
Close the valve of connecting pipe 2 port be connected with gas outlet 16, cup 11 is made to be in air-tight state, vacuum extractor 4 is used to bleed from rising pipe 15 uninterruptedly subsequently, until after forming vacuum state in cup 11 and connecting pipe 2, open water inlet pipe valve 51.In abovementioned steps, because the flow velocity of water in water inlet pipe 14 and connecting pipe 2 is unhappy, after current, tube wall can adhere to a lot of bubble, and after placement after a while, bubble can break again, air wherein overflows from water, changes the liquid level of Guan Zhongshui, is unfavorable for the accuracy measured.After vacuumizing, the negative pressure state formed in cup 11, can keep the liquid in water inlet pipe 14 to be in the highest liquid level all the time in pipeline, and the air that can accelerate to exist in water overflows, and ensure that the accuracy of measurement result.
Observe the water outlet situation of the connecting pipe 2 of rising pipe 15 from observation Dun33Chu, after rising pipe 15 starts water outlet, slow down the speed of evacuation until stop, closing water storage barrel connecting pipe valve 53.Owing to there being the existence of negative pressure state, the flow velocity of current in comparatively elongated pipeline can also being accelerated, water is flowed out smoothly, the probability of bubbles attached on tube wall can also be reduced, reduce the bubble existed in water further.
Above-mentioned steps can keep the leakproofness of pipe system effectively, can make after evacuation in system, especially the air content in pipeline drops to minimum, the impact on measuring accuracy such as the bubble occurred in liquid when can effectively avoid at filling liquid in the process measured like this, ensure that the accuracy measuring numerical value.
Phase III, measure liquid level elevation:
Open the valve on the connecting pipe 2 that is connected with gas outlet 16 and measuring tube valve 52, slowly add water in measuring tube 32, continue to add water after the connecting pipe 2 of rising pipe 15 stablizes water outlet and be no less than 50ml, the time of liquid level stabilizing is no less than 5min, stop afterwards adding water, after buret 32 liquid level stabilizing to be measured, read measuring tube middle water level height.
Again slowly add water in measuring tube 32 and be no less than 50ml, the time of liquid level stabilizing is no less than 5min, reading again after liquid level stabilizing, until adjacent twice difference of reading is not more than 1mm, reading last numerical value is that the reading of this survey measurements measuring tube 32 liquid level is added with the elevation of observation mark on observation pier and is this time and measures measuring point elevation.Through repetitive measurement, can obtain elevation numerical value more accurately, the error produced when effectively reducing reading, makes measurement structure more accurate.
After measurement completes, stop to measuring tube 32 water filling, until the connecting pipe 2 no longer water outlet of rising pipe 15, disconnect water inlet pipe 14 and the connection of measuring system 3, vacuum extractor 4, measuring tube 32 and 3-way valve door 5 are removed, install again when next time measures and uses; Protect the nylon tube head of the connecting pipe 2 be connected with gas outlet 16, rising pipe 15 and water inlet pipe 14; Groove structure above observation pier 33 is then built to be protected.When again carrying out settlement observation, repeat steps A-H, the difference of the measuring point elevation of twice measurement is the subgrade settlement of sedimentation water tumbler position.
Measuring tube 32 is fixed at surveyors' staff 31 side, and level method can be adopted to observe the elevation of liquid level in measuring tube 32, and the method operation steps is simple, and observation elevation is accurate, can improve the work efficiency measured.
When adopting level method to measure liquid level, level method is utilized to read liquid level in measuring tube 32, the elevation that can obtain liquid level in measuring chamber is added with the dip stick benchmark elevation measured with leveling measuring method, by the liquid level elevation of law of connected vessels just known another port (measuring point), twice measurement in front and back obtains the difference of elevation, is the settling amount of measured point.
Technique scheme utilizes law of connected vessels, buries sedimentation water tumbler in roadbed or on ground underground, take water as medium, carries out settlement observation by measuring system 3, connects sedimentation water tumbler 1 and measuring system 3 by connecting pipe 2.Observing without construction hindered falling of construction period can be realized, also can carry out the long-term observation of operating period, there is cost low, pollution-free, advantage simple to operation.
Claims (9)
1. a Settlement Observation equipment, is characterized in that: comprise enclosed sedimentation water tumbler (1), connecting pipe (2) and be fixed on the measuring system (3) of roadbed side; Sedimentation water tumbler (1) bottom is fixed with water inlet pipe (14), rising pipe (15) and gas outlet (16), gas outlet (16) all stretches into sedimentation water tumbler (1) inner chamber with one end of water inlet pipe (14), one end of rising pipe (15) is concordant with the bottom surface of sedimentation water tumbler (1) inner chamber, and the other end of water inlet pipe (14), rising pipe (15) and gas outlet (16) stretches out sedimentation water tumbler (1) outside; Measuring system (3) comprises measuring tube (32); Water inlet pipe (14) is connected with measuring tube (32) by connecting pipe (2), and rising pipe (15) is connected with vacuum extractor (4) by connecting pipe (2), and gas outlet (16) is communicated with outside air by installing valvular connecting pipe (2); Connecting pipe (2) is also connected with open water storage barrel (6) by water storage barrel connecting pipe with the junction of measuring system (3), and this junction is provided with the 3-way valve door (5) of connection three pipelines; 3-way valve door (5) comprises the water inlet pipe valve (51) be connected with connecting pipe (2), the measuring tube valve (52) be connected with measuring tube (32), the water storage barrel connecting pipe valve (53) be connected with water storage barrel connecting pipe and support (54), and water inlet pipe valve (51), measuring tube valve (52) and water storage barrel connecting pipe valve (53) are all fixed on support (54).
2. a kind of the Settlement Observation equipment according to claim 1, it is characterized in that: described measuring system (3) also comprises surveyors' staff (31), measuring tube (32) is fixed at surveyors' staff (31) side, and measuring tube (32) and surveyors' staff (31) are all fixed at observes pier (33) upper surface.
3. a kind of the Settlement Observation equipment according to claim 1, it is characterized in that: sedimentation water tumbler (1) comprises bearing (13) at the bottom of cup (11), some glasss of bottom bracings (12) and cup, cup bottom bracing (12) is distributed at the bottom of cup (11) and cup between bearing (13) equably, and the space in cup (11) is described inner chamber.
4. a kind of the Settlement Observation equipment according to claim 3, it is characterized in that: described water inlet pipe (14), rising pipe (15) and gas outlet (16) are L shape round steel pipe, water inlet pipe (14), rising pipe (15) and gas outlet (16) other end stretch out between bearing (13) at the bottom of cup (11) and cup.
5. a kind of the Settlement Observation equipment according to claim 3, is characterized in that: one end that described water inlet pipe (14) stretches into cup (11) is provided with hydraucone (18).
6. a kind of the Settlement Observation equipment according to claim 1, it is characterized in that: described connecting pipe (2) is nylon tube, outside is provided with protection tube (7).
7. be applied to the observation procedure of a kind of the Settlement Observation equipment according to claim 1, it is characterized in that comprising the steps:
First stage, arranging system is installed:
A, excavate groove in position, roadbed measured point along transversal section, sedimentation water tumbler (1) and connecting pipe (2) are put into groove, measuring system (3) is fixedly installed on the observation pier (33) outside roadbed toe;
B, one end of connecting pipe (2) to be tightly connected with water inlet pipe (14), rising pipe (15) and gas outlet (16) respectively, the other end of connecting pipe (2) stretches out outside groove, be communicated with measuring tube (32), vacuum extractor (4) and outside air respectively by valve, backfill is compacting groove also;
Subordinate phase, vacuumizes sedimentation water tumbler and connecting pipe:
C, open water inlet pipe valve (51), measuring tube valve (52) and water storage barrel connecting pipe valve (53), slow water filling in measuring tube (32), after the connecting pipe (2) of water inlet pipe (14) starts water-filling, close water inlet pipe valve (51), continue to measuring tube (32) slowly water filling; After water is full of water storage barrel connecting pipe, the water storage barrel connecting pipe other end is placed in water storage barrel (6), ensures the leakproofness of 3-way valve door (5);
D, closedown measuring tube valve, continue to make its water level higher to water filling in measuring tube (32);
E, close gas outlet (16), and use vacuum extractor (4) to bleed from rising pipe (15) uninterruptedly, until after forming vacuum in cup (11) and connecting pipe (2), open water inlet pipe valve (51);
F, start to slow down the speed of evacuation after water outlet until stop until rising pipe (15), close water storage barrel connecting pipe valve (53);
Phase III, measure liquid level elevation:
G, open valve on the connecting pipe (2) that is connected with gas outlet (16) and measuring tube valve (52), slowly add water in measuring tube (32), continue to add water after water outlet stablized by rising pipe (15), stop afterwards adding water, after buret to be measured (32) liquid level stabilizing, read measuring tube middle water level height;
H, again slowly to add water in measuring tube (32), reading again after liquid level stabilizing, until adjacent twice difference of reading is not more than 1mm, reading last numerical value is this survey measurements, and measuring tube reading is added with the elevation of observation mark on observation pier and is this time and measures measuring point elevation;
I, measured after, stop to measuring tube (32) water filling, until rising pipe (15) no longer water outlet, disconnect the connection of water inlet pipe (14) and measuring system (3), remove measuring system (3) and 3-way valve door (5), and protect the nylon tube head of gas outlet (16), water inlet pipe (14), rising pipe (15); When again carrying out settlement observation, repeat steps A-H, the difference of the measuring point elevation of twice measurement is the subgrade settlement of sedimentation water tumbler position.
8. be applied to the observation procedure of a kind of the Settlement Observation equipment according to claim 7, it is characterized in that: in described steps A, channel excavation should arrange the gradient of the downward 3%-5% to toe direction, the sand of one deck 5cm ~ 10cm first should be covered during backfill, subgrade soils is filled out again after compacting, finally by groove compacting, guarantee that the connecting pipe (2) of rising pipe (15) can draining smoothly.
9. be applied to the observation procedure of a kind of the Settlement Observation equipment according to claim 7, it is characterized in that: in described step G and H, the time of measuring tube (32) liquid level stabilizing is no less than 5min.
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| CN109141353A (en) * | 2018-09-29 | 2019-01-04 | 中南大学 | A kind of sedimentation plate for roadbed monitoring |
| CN109141352A (en) * | 2018-09-29 | 2019-01-04 | 中南大学 | A kind of subgrade settlement monitoring device |
| CN109655037A (en) * | 2019-02-27 | 2019-04-19 | 山东大学 | A kind of combination type sedimentation observation device and method |
| CN110196038A (en) * | 2019-06-28 | 2019-09-03 | 石家庄铁道大学 | Measure measuring mechanism and its application of different elevational point settling amounts |
| CN110207652A (en) * | 2019-06-11 | 2019-09-06 | 中铁一局集团有限公司 | A kind of pressure line settlement observer using law of connected vessels |
| CN113238296A (en) * | 2021-07-12 | 2021-08-10 | 深圳市勘察研究院有限公司 | Intelligent ground collapse exploration and detection platform |
| CN113959404A (en) * | 2021-09-03 | 2022-01-21 | 华能澜沧江水电股份有限公司 | Pressing and exhausting method for water pipe type settlement meter |
| CN114264282A (en) * | 2021-12-27 | 2022-04-01 | 江苏劲驰电力工程有限公司 | Power grid construction settlement monitoring device suitable for multi-texture soil |
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| CN109655037A (en) * | 2019-02-27 | 2019-04-19 | 山东大学 | A kind of combination type sedimentation observation device and method |
| CN110207652A (en) * | 2019-06-11 | 2019-09-06 | 中铁一局集团有限公司 | A kind of pressure line settlement observer using law of connected vessels |
| CN110207652B (en) * | 2019-06-11 | 2021-05-04 | 中铁一局集团有限公司 | Pressure pipeline settlement observation device utilizing communicating vessel principle |
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| CN110196038B (en) * | 2019-06-28 | 2022-03-04 | 石家庄铁道大学 | Measuring mechanism for measuring settlement amount of different elevation points and application thereof |
| CN113238296A (en) * | 2021-07-12 | 2021-08-10 | 深圳市勘察研究院有限公司 | Intelligent ground collapse exploration and detection platform |
| CN113959404A (en) * | 2021-09-03 | 2022-01-21 | 华能澜沧江水电股份有限公司 | Pressing and exhausting method for water pipe type settlement meter |
| CN113959404B (en) * | 2021-09-03 | 2023-08-01 | 华能澜沧江水电股份有限公司 | Pressurizing and exhausting method for water pipe type sedimentation instrument |
| CN114264282A (en) * | 2021-12-27 | 2022-04-01 | 江苏劲驰电力工程有限公司 | Power grid construction settlement monitoring device suitable for multi-texture soil |
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