CN209703202U - Infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden - Google Patents
Infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden Download PDFInfo
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- CN209703202U CN209703202U CN201920152833.8U CN201920152833U CN209703202U CN 209703202 U CN209703202 U CN 209703202U CN 201920152833 U CN201920152833 U CN 201920152833U CN 209703202 U CN209703202 U CN 209703202U
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Abstract
The utility model discloses infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden, it is successively arranged heap loading from top to bottom, load top plate, load column, loads on bottom plate, load bottom plate sets through hole, and seepage channel is set in through hole, and seepage channel is equipped with water seepage hole；Seepage channel inner wall is fixed with humidity sensor, and humidity sensor and humid control switch connect, and humid control switch control electric operator, electrically operated valve, water-supply-pipe one connection water storage barrel, other end are protruded into seepage channel；Lateral humidity sensor and vertical humidity sensor, humidity logging receiving sensor signal are laid around seepage channel, humidity logging is connected by power supply line with controller；Controller has 3 docking the end of a thread, is separately connected power supply device, battery, humid control switch and is connected with humidity logging.Advantage: can really, effectively reflect mud stone infiltration coefficient in actual operation, bigger to engineering significance.
Description
Technical field
The utility model relates to high-speed railway subgrade technical field, seeped under specially a kind of high-speed rail ground mud stone overlying burden
The measurement of saturating coefficient.
Background technique
Swelled ground is a kind of mainly by strongly hydrophilic clay mineral and its special soils of mixed layer clay mineral composition, has and inhales
Water expansion, dehydration shrinkage, deformation have the characteristics that repeatability, multiple and long-term potentiality with destroying, to subgrade stability and
Engineering safety is totally unfavorable.Ballastless track of high-speed railway is extremely stringent to roadbed deformation requirements, and arch permission adjustment amount is only
4mm, when high-speed railway passes through expansive mud-stone location, influence due to water to mud stone will lead to roadbed arch, and then make rail
The uneven pliable aggravation in road, this will directly affect vibration of rolling stock, wheel-rail interaction and traffic safety comfort property, finally will
Influence high-speed railway safe operation.
The arch research of the high-speed railway subgrade caused by weak expansive mud-stone ground, is rarely reported both at home and abroad.With me
The rapid development of state's high-speed railway, will emerge largely using weak expansive mud-stone as the railway engineering of ground.Moisture in mud stone ground
Infiltrate be influence mud stone expansion principal element, the moisture of infiltration is more, and mud stone dilatancy is bigger, high-speed railway subgrade arch
Amount is bigger, and the variation of overlying burden is to influence the key factor of Infiltration, and overlying burden is bigger to inhibit mud stone dilatancy
Effect is stronger, and then keeps mud stone more closely knit, and final moisture will be more difficult to infiltrate, and overlying burden is smaller to mud stone dilatancy inhibiting effect
Weaker, moisture is easier to be infiltrated.And mud stone osmotic coefficient investigating method is carried out indoors mostly at present, but interior is put to the test ruler
Very little effect, boundary condition, disturbance etc. influence, test result still cannot really, effectively reflect structures in actual operation by
Power situation；And live soil body osmotic coefficient mensuration mode is bicyclic water flood, but this method only measures the soil body in no overlying burden
The vertical infiltration coefficient for acting on the lower soil body, for there is overlying burden to act on the horizontal infiltration coefficient and vertical infiltration coefficient of the lower soil body
But it cannot achieve.
For this purpose, acting on lower mud stone ground horizontal infiltration coefficient and vertical infiltration coefficient in-site detecting for different overlying burdens
The blank of method, there is an urgent need to a kind of easy to operate, intelligent, low-cost measurement devices.
Utility model content
The purpose of this utility model is to provide infiltration coefficient in-situ intelligents under a kind of high-speed rail ground mud stone overlying burden to survey
Determine device.
To achieve the above object, the utility model provides the following technical solutions: under a kind of high-speed rail ground mud stone overlying burden
Infiltration coefficient in-situ intelligent measurement device, including load top plate, load cover top surface place heap loading, load top plate lower surface
To load column, the load column lower end is placed on load bottom plate, and the load bottom plate center opens up hole up and down, perforation
Seepage channel is set in hole, and seepage channel extends downwardly, inner hollow, and side wall, bottom wall are equipped with water seepage hole；The load bottom plate bottom
Waterproof membrane and sand are arranged in face；The seepage channel inner wall is fixed with humidity sensor, and the humidity sensor passes through the first humidity
Signal wire and humid control switch connect, and the humid control switch is connect by electric wire with electric operator, described electronic
The opening and closing of actuating mechanism controls electrically operated valve, the electrically operated valve is set on water-supply-pipe, one connection water storage barrel of water-supply-pipe, another
Head protrudes into seepage channel；Humid control switch is connected by power supply line with controller, be provided on water-supply-pipe flowmeter,
Manually-operated gate；
The seepage channel lateral position and vertical position lay lateral humidity sensor and vertical humidity sensor, described
Lateral humidity sensor and vertical humidity sensor are connected to humidity logging, the humidity inspection by the second moisture signal line
Instrument is connected by power supply line with controller；
The controller has 3 docking the end of a thread, and a pair of of connector lug positive and negative anodes connection power supply device, a pair of of connector lug positive and negative anodes connect
Connect battery, a pair of of connector lug positive and negative anodes are connected with humid control switch and humidity logging.
Preferably: the infiltration hole shape on seepage channel is plum blossom-shaped, and the water seepage hole of side wall has 4 column.
The lateral humidity sensor quantity is 24, and 24 lateral humidity sensors divide upper layer and lower layer each 12, often
Layer is along 0 ° of seepage channel clockwise direction seen from above, 90 °, 180 °, 270 ° of layings.
The vertical humidity sensor quantity is 3, point three layer arrangements immediately below seepage channel center.
The humidity logging has measuring signal radio transmitting device.
Power supply device is using solar powered, in controller a pair of of connector lug positive and negative anodes connection solar panel, institute
The solar panel stated is by controller on daytime to humid control switch, humidity logging, electric operator, motor-driven valve
Door power supply, also charges to battery；By battery to humid control switch, humidity logging, electronic execution when night
Mechanism, electrically operated valve power supply.
The load top plate and load bottom plate is circular steel plate.
The size of the water seepage hole of the seepage channel side wall is in the trend reduced from top to bottom.
Based on the above-mentioned technical proposal, the utility model at least can produce following advantage:
1, infiltration coefficient in-site detecting device under the high-speed rail mud stone ground overlying burden, passes through humidity sensor, humidity control
The fully-automatic intelligent water flooding regime for making switch, electric operator, electrically operated valve, water storage barrel, overcomes traditional artificial recharge
Mode ensure that the round-the-clock uninterrupted infiltration of mud stone.
2, infiltration coefficient in-site detecting device under the high-speed rail mud stone ground overlying burden by lateral humidity sensor, erects
To the mode of humidity sensor and humidity logging measurement mud stone volumetric water content, according to the situation of change of volumetric water content, seep
Saturating distance and time of penetration, can calculate the horizontal infiltration coefficient and vertical infiltration coefficient of mud stone.
3, infiltration coefficient in-site detecting device under the high-speed rail mud stone ground overlying burden passes through solar panel, control
Device, battery and the humidity of wireless transmission logging can realize it is round-the-clock, automatically acquire data, overcome field power supply ask
Topic and the original state soil body because permeate relatively slow, time of penetration it is longer brought by the inconvenience garrisoned of the long-term scene of tester.
4, infiltration coefficient in-site detecting device under the high-speed rail mud stone ground overlying burden, convenient, automatic intelligent journey of constructing
Degree is high, low in cost, compares other soil body osmotic coefficient measuring methods, and which can really, effectively reflect mud stone in practical work
Infiltration coefficient in work is bigger to engineering significance.
Detailed description of the invention
Fig. 1 is the site operation layout drawing of overlook direction；
Fig. 2 is the site operation layout drawing of side-looking direction；
Fig. 3 is test area elevation；
Fig. 4 is seepage channel side expanded view；
Fig. 5 is the utility model structure composition schematic diagram；
Transverse direction humidity sensor (a) and vertical humidity sensor (b) time-history curves when Fig. 6 overlying burden is 15kPa；
Transverse direction humidity sensor (a) and vertical humidity sensor (b) time-history curves when Fig. 7 overlying burden is 30kPa；
Transverse direction humidity sensor (a) and vertical humidity sensor (b) time-history curves when Fig. 8 overlying burden is 45kPa；
Horizontal infiltration coefficient (a) and vertical infiltration coefficient (b) under Fig. 9 difference overlying burden；
Figure 10 is plum blossom-shaped water seepage hole schematic diagram；
In figure: 1- loads top plate, the loading of 2- heap, 3- load column, 4- load bottom plate, 5- seepage channel, 6- humidity inductive
Device, the first moisture signal of 7- line, 8- humid control switch, 9- electric wire, 10- electric operator, 11- electrically operated valve, 12- water delivery
Pipe, 13- water storage barrel, 14- power supply line, 15- controller, 16- transverse direction humidity sensor, the vertical humidity sensor of 17-, 18- second
Moisture signal line, 19- humidity logging, 20- solar panel, 21- battery, 22- flowmeter, 23- manually-operated gate, 24-
Ground, 25- waterproof membrane, 26- sand, 35- free face, 36- transverse direction humidity sensor be hole arranged, 37- test area, 38- water injection hole,
The vertical humidity sensor of 39- is hole arranged, the drilling of 40- water seepage hole, 41- test area, 42- horizontal direction.
Specific embodiment
Below with reference to the attached drawing of the utility model, clear, complete description is carried out to the technical solution of the utility model.
Infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden, equipment therefor is referring to Fig. 4-5
It is shown, including load top plate 1, the placement heap loading 2 of load 1 upper surface of top plate, load 1 lower surface of top plate is load column 3, described
Load 3 lower end of column is placed on load bottom plate 4, and 4 center of load bottom plate opens up hole up and down, and seepage flow is arranged in through hole
Channel 5, seepage channel 5 extend downwardly, inner hollow, and side wall, bottom wall are equipped with water seepage hole 40；4 sole arrangement of load bottom plate
Waterproof membrane 25 and sand 26；5 inner wall of seepage channel is fixed with humidity sensor 6, and the humidity sensor 6 passes through the first humidity
Signal wire 7 is connect with humid control switch 8, and the humid control switch 8 is connect by electric wire 9 with electric operator 10, institute
It states electric operator 10 and connects electrically operated valve 11, electric operator 10 controls electrically operated valve 11 and is opened and closed, the electrically operated valve
11 are set on water-supply-pipe 12, and water-supply-pipe 12 1 connection water storage barrels 13, other ends are protruded into seepage channel 5；The humidity control
System switch 8 is connected by power supply line 14 with controller 15, and flowmeter 22, manually-operated gate 23 are provided on water-supply-pipe 12；The infiltration
5 lateral position of circulation road and vertical position lay lateral humidity sensor 16 and vertical humidity sensor 17, the transverse direction humidity
Sensor 16 and vertical humidity sensor 17 pass through the second moisture signal line 18 and are connected to humidity logging 19, the humidity inspection
Instrument 19 is connected by power supply line 14 with controller 15, and lateral humidity sensor 16 is laid by the center of circle point multilayer of seepage channel, is erected
The multilayer of upward and downward is divided to lay below seepage channel to humidity sensor 17；Controller 15 has 3 docking the end of a thread, wherein left side one
Positive and negative anodes connector lug is connect with solar panel 20, intermediate a pair of positive and negative anodes connector lug is connected with battery 21, right side one
It is connected to positive and negative anodes connector lug with humid control switch 8 and humidity logging 19.Solar panel 20 is existed by controller 15
Daytime to humid control switch 8, humidity logging 19, electric operator 10, electrically operated valve 11 power, also to battery 21 into
Row charging；By battery 21 to humid control switch 8, humidity logging 19, electric operator 10, electrically operated valve when night
11 power supplies.Using solar powered, can solve field use it is inconvenient the problem of.
Operation, continuous mode: as shown in Fig. 1-3,5,1) in one piece of place of plan measured zone selection, remove earth's surface about
The surface dust of 0.4m thickness excavates testing foundation ditch, foundation pit bottom size 2m × 1.75m, deep 0.4m, side slope ratio 2: 1, excavation of foundation pit completion
Afterwards, to the leveling of hole bottom；
2) foundation pit side excavate free face, free face depth be greater than foundation depth, free face length × wide × depth for 2m ×
0.5m×2m。
3) bottom of foundation ditch excavates round test area, and round test area diameter is 0.75m, depth 0.1m, after the completion to each
Test area is flattened.
4) vertical water injection hole is bored at foundation pit border circular areas center with drilling machine, fills the water bore dia 0.08m, depth 0.5m.
5) around water injection hole vertical direction brill transverse direction humidity sensor putting hole；Free face side wall below foundation pit
It is upper to excavate vertical humidity sensor putting hole.
6) by lateral humidity sensor 16 and vertical humidity sensor 17 be individually positioned in lateral humidity sensor putting hole,
In vertical humidity sensor putting hole, notice that sensor probe is contacted with hole wall reality soil, is preferably inserted into the real soil of hole wall, it will be horizontal
It is connected to, vertical humidity sensor signal line with humidity logging 19, the booting of humidity logging checks that humidity sensor operation is
It is no normal, it is replaced immediately if any abnormal.
7) foundation pit border circular areas surface spreads one layer of sand, the whole level in sand upper surface, and layer of sand will box out and prevent for seepage channel
Sand is dropped into water injection hole, is spread waterproof membrane (selecting from polymeric material film, such as polyethylene film) on sand surface, is prevented from filling the water
Shi Shuifen is evaporated from soil body surface, and waterproof center membrane is seepage channel by there is borehole.
8) in the through hole of 5 upper end of seepage channel insertion load bottom plate 4, seepage channel 5 is put into water injection hole, loads bottom plate
4 are placed on waterproof membrane.
9) load 4 upper surface of bottom plate installation load column 3 loads and places load top plate 1 on column 3, loads table on top plate 1
Heap loading 2 is placed in face, reaches target overlying burden value.
10) humid control switch 8 is connect into electricity, opens manually-operated gate, 12 water flowing of water-supply-pipe, electric operator, motor-driven valve
Door and humid control switch gearing, when humidity sensor humidity is setting low value (probe does not contact directly with water), humid control
Switch receives moisture signal and sets low value, and humid control switch control electric operator, electrically operated valve are opened, water infiltration stream
In channel；When humidity sensor humidity is setting high level, humid control switch receive moisture signal setting high level (humidity is maximum,
Probe is directly contacted with water), humid control switch control electric operator, electrically operated valve are closed, and are stopped to seepage channel
Water filling, reaching seepage channel has water but not excessive requirement.
11) observe and record lateral humidity sensor and vertical humidity sensor reading, all lateral humidity sensors and
After vertical humidity sensor stable reading, show that test area mud stone seeps water uniformly, completely.
12) mud stone seepage flow speed calculates:
From inside to outside, the distance of first layer, the second layer, third layer transverse direction humidity sensor apart from penetrating passage edge point
It Wei not h1、h2、h3, h1< h2< h3, from top to bottom, the vertical humidity sensor distance infiltration of first layer, the second layer, third layer is logical
The distance of road bottom is respectively s1、s2、s3, s1< s2< s3；
First layer transverse direction humidity sensor is from when starting to measure used in volumetric water content to final volume moisture content stabilization
Between be respectively t11、t12、t13、t14, second layer transverse direction humidity sensor is from starting to measure volumetric water content to final volume moisture content
Stablizing the time used is respectively t21、t22、t23、t24, third layer transverse direction humidity sensor is from starting to measure volumetric water content to most
The final volume moisture content stable time used is respectively t31、t32、t33、t34, the vertical humidity sensor of first layer, the second layer, third layer
Device is respectively t from the time used in measurement volumetric water content to final volume moisture content stabilization is started1、t2、t3；
Mud stone transverse direction seepage flow speed: first layer: v11=h1/t11、v12=h1/t12、v13=h1/t13、v14=h1/t14, average value
v1p=(v11+ v12+ v13 +v14)/4
The second layer: v21=h2/t21、v22=h2/t22、v23=h2/t23、v24=h2/t24, average value v2p=(v21+ v22+ v23 +
v24)/4
Third layer: v31=h3/t31、v32=h3/t32、v33=h3/t33、v34=h3/t34, average value v3p=(v31+ v32+ v33 +
v34)/4
The vertical seepage flow speed of mud stone: first layer: v1=s1/t1, the second layer: v2=s2/t2, third layer: v3=s3/t3
The unit of distance uses m, and the unit of time uses s, then the unit of lateral seepage flow speed and vertical infiltration rate
For m/s, the infiltration rate is consistent with infiltration coefficient dimension, due to being to measure at the scene, and what is measured is original state mud stone, thus
To horizontal infiltration coefficient and vertical infiltration coefficient of the live original state mud stone under overlying burden effect, when heap loading weight size becomes
Change, humidity sensor position difference when, just show that lateral under different overlying burdens, at different seepage distance of original state mud stone is seeped
Saturating coefficient and vertical infiltration coefficient.
Further preferred embodiment is: the infiltration hole shape on seepage channel 5 is plum blossom-shaped, and the water seepage hole of side wall has 4 column,
The plum blossom-shaped grogs caused by unobstructed and aperture is big that can make to seep water enters seepage channel.
More optimal solution is: the trend reduced from top to bottom is presented in the size of the water seepage hole of 5 side wall of seepage channel.It seeps bottom
Water hole aperture is 0.5cm, and the aperture 0.5cm of side wall water seepage hole lowest part, with the increase of seepage channel height, water seepage hole aperture exists
On the basis of 0.5cm, increase 0.01cm every hole aperture.Since the different depth pressure of water in seepage channel will lead to seepage flow
Beneath galleries hole seepage velocity is very fast, and upper hole seepage velocity is slower, causes lower part soil moisture content higher, and the top soil body contains
Water rate is lower, and the measurement data deviation of the humidity sensor of upper and lower level is big, influences availability of data.Gradually become using pore size
The structure of change just can solve this problem.
Lateral 16 quantity of humidity sensor is 24, and 24 lateral humidity sensors 16 divide upper layer and lower layer each 12, every layer
Along 0 ° of the clockwise direction seen from above of seepage channel 5,90 °, 180 °, 270 ° of layings.Vertical 17 quantity of humidity sensor is 3
It is a, point three layer arrangements immediately below 5 center of seepage channel.Using upper and lower, inside and outside multi-tier arrangement mode, it is ensured that measurement data
It is comprehensive, availability of data is high.
In order to reduce human attendance's time, humidity logging 19 has measuring signal wireless transmission function.Signal passes through nothing
The transmitting of line signal, reception device transmit, and remote observation, record may be implemented.Record is primary within humidity logging 19 every 20 minutes
The value of lateral humidity sensor 16 and vertical humidity sensor 17, and the value is passed back by self-contained wireless transmission function
Indoor accepting device.
The load top plate 1 and load bottom plate 4 is circular steel plate, can increase uniform force.
Embodiment analysis
Such as Fig. 6,7,8, by arching up location to Lanzhou-Xinjiang one typical subgrade of high-speed rail, carried out using this kind of utility model device
Mud stone horizontal infiltration coefficient and vertical osmotic coefficient investigating under tri- kinds of overlying burdens of 15kPa, 30kPa, 45kPa.Fig. 9 is provided to use and is somebody's turn to do
The measurement of kind method and horizontal infiltration coefficient of the calculated high-speed railway mud stone ground under different overlying burdens and vertical infiltration
Coefficient, this method can meet field test requirement as can be seen from Figure 9, can make up different overlying burdens and act on lower mud stone ground laterally infiltration
The blank of saturating coefficient and vertical infiltration coefficient in-situ determination method.
While there has been shown and described that the embodiments of the present invention for those of ordinary skills can
It a variety of to the progress of these embodiments can be changed with understanding in the case where not departing from the utility model principle and mental condition, modified, replaced
It changes and deforms, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden, including load top plate (1), load
Place heap loading (2) in top plate (1) upper surface, it is characterised in that: load top plate (1) lower surface is load column (3), the load
Column (3) lower end is placed in load bottom plate (4), and load bottom plate (4) center opens up hole up and down, is arranged in through hole and is seeped
Circulation road (5), seepage channel (5) extend downwardly, inner hollow, and side wall, bottom wall are equipped with water seepage hole (40)；The load bottom plate
(4) sole arrangement waterproof membrane (25) and sand (26)；Seepage channel (5) inner wall is fixed with humidity sensor (6), the humidity
Inductor (6) is connect by the first moisture signal line (7) with humid control switch (8), and the humid control switch (8) passes through electricity
Line (9) is connect with electric operator (10), electric operator (10) control electrically operated valve (11) opening and closing, described electronic
Valve (11) is set on water-supply-pipe (12), and seepage channel (5) are protruded into water-supply-pipe (12) connection water storage barrels (13), an other ends
In；The humid control switch (8) is connected by power supply line (14) with controller (15), and water-supply-pipe is provided with flowmeter on (12)
(22), manually-operated gate (23)；
Seepage channel (5) lateral position and vertical position lay lateral humidity sensor (16) and vertical humidity sensor
(17), the lateral humidity sensor (16) and vertical humidity sensor (17) are connected to wet by the second moisture signal line (18)
It spends logging (19), the humidity logging (19) is connected by power supply line (14) with controller (15)；
The controller (15) has 3 docking the end of a thread, and a pair of of connector lug positive and negative anodes connection power supply device, a pair of of connector lug positive and negative anodes connect
Connect battery (21), a pair of of connector lug positive and negative anodes are connected with humid control switch (8) and humidity logging (19).
2. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden according to claim 1,
It is characterized by: the infiltration hole shape on seepage channel (5) is plum blossom-shaped, the water seepage hole of side wall has 4 column.
3. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden according to claim 1,
It is characterized by: lateral humidity sensor (16) quantity is 24,24 lateral humidity sensors (16) are divided to upper and lower two
Each 12, layer, every layer along 0 ° of seepage channel (5) clockwise direction seen from above, 90 °, 180 °, 270 ° of layings.
4. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden according to claim 3,
It is characterized by: vertical humidity sensor (17) quantity is 3, point three layers of cloth immediately below seepage channel (5) center
It sets.
5. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden according to claim 1,
It is characterized by: the humidity logging (19) has measuring signal radio transmitting device.
6. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden according to claim 1,
It is characterized by: power supply device is using solar powered, in controller (15) a pair of of connector lug positive and negative anodes connection solar-electricity
Pond plate (20), the solar panel (20) switch (8), humidity inspection to humid control on daytime by controller (15)
Instrument (19), electric operator (10), electrically operated valve (11) power supply, also charge to battery (21)；Pass through storage when night
Battery (21) powers to humid control switch (8), humidity logging (19), electric operator (10), electrically operated valve (11).
7. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden according to claim 1,
It is characterized by: the load top plate (1) and load bottom plate (4) is circular steel plate.
8. infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden according to claim 1,
It is characterized by: the size of the water seepage hole of seepage channel (5) side wall is in the trend reduced from top to bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920152833.8U CN209703202U (en) | 2019-01-29 | 2019-01-29 | Infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920152833.8U CN209703202U (en) | 2019-01-29 | 2019-01-29 | Infiltration coefficient in-situ intelligent measurement device under a kind of high-speed rail ground mud stone overlying burden |
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