CN202024993U - Drainage test measuring pit - Google Patents
Drainage test measuring pit Download PDFInfo
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- CN202024993U CN202024993U CN2011200767759U CN201120076775U CN202024993U CN 202024993 U CN202024993 U CN 202024993U CN 2011200767759 U CN2011200767759 U CN 2011200767759U CN 201120076775 U CN201120076775 U CN 201120076775U CN 202024993 U CN202024993 U CN 202024993U
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a drainage test measuring pit, which comprises a measuring pit, a reverse filtering layer, a soil layer, a water pipe, a water level observation pipe, a water temperature measuring device and a movable water supply water tank, wherein the measuring pit is in a barrel-shaped structure with an open opening, the reverse filtering layer is paved on the bottom of the measuring pit, the soil layer is uniformly paved on the upper surface of the reverse filtering layer in the measuring pit, a first through hole and a second through hole are respectively arranged on the two side walls of the lower part of the measuring pit, the water pipe passes through the first through hole arranged at one side of the measuring pit to be horizontally buried in the reverse filtering layer, the water level observation pipe is fixedly connected at the second through hole part arranged at the other side of the measuring pit, in addition, a pipe opening of the water level observation pipe faces the upward direction, the water temperature measuring device is fixed at the upper part of the inner wall of the measuring pit, the movable water supply water tank is glidingly connected with the outer side wall of the measuring pit, and the water pipe is fixedly connected with the bottom of the movable water supply water tank. The drainage test measuring pit has the advantages that the manufacture price is low, the installation is simple, the observation is convenient, and the measuring test range is wide.
Description
Technical field
The utility model relates to a kind of drainage test device, relates in particular to a kind of drainage test and surveys the hole.
Background technology
Field irrigation and draining have effect of equal importance for plant growth, do not have suitable drainage condition and facility, just can not guarantee good crop growth environment.Draining is to improving plant growth, improve crop yield, improve tillage condition, preventing that salinization of soil etc. from all having played important effect.The draining control in agricultural field engineering can effectively be regulated and control underground water level and groundwater resource, has both brought into play its vital role in water logging control draining in flood season, can fully utilize its water storage function again.Continuous increase along with agricultural irrigation water amount and amount of application of nitrogen fertilizer, cause being rich in the agricultural drain elements such as nitrogen, phosphorus, and nitrogen, phosphorus enter water body in a large number, can cause the river eutrophication, so agricultural drainage has more and more obtained people's attention to the pollution problem of environment.
Chinese patent Granted publication CN2692670Y, the applying date is on March 12nd, 2004, Granted publication day is on April 13rd, 2005, discloses " soil evaporation permeameter ".A kind of soil evaporation permeameter, this permeameter ooze container, snorkel, water inlet pipe, permeable cover, run-down pipe, well logging, measurement tube, drainage palm fibre sheet and gravel by steaming to be formed; One side of oozing container in steaming is equipped with snorkel, and the other end of snorkel is connected with permeable cover; The opposite side that oozes container in steaming is equipped with water inlet pipe, and the other end of water inlet pipe is connected with permeable cover, steams the bottom of oozing container and fixedly has the permeable cover of several holes moral; One end right angle of run-down pipe upwards is connected with permeable cover, and its other end down at right angles is connected with well logging; Gravel is equipped with in the bottom of oozing container in steaming, and the surface of gravel is covered with drainage palm fibre sheet, and on drainage palm fibre sheet backfill soil; Be equipped with in the well logging and measure tube.This permeameter is compared with permeameter in the existing ground, removes gallery, accepts the soil infiltration with overflow cylinder, and cost reduces greatly; This permeameter has been owing to installed permeable cover and snorkel, water inlet pipe and run-down pipe simultaneously, thereby can reduce in the soil dead air breathing effect to the influence of phreatic table.This permeameter can survey native face steam ooze, the farmland steams and blends forest and steam and ooze.
The test of relevant draining all will at first utilize a kind of drainage test device to study, as the effect of control draining to minimizing nitrate nitrogen discharge load; The improvement of tradition Drainage Design standard, irrigation practice and control drainage measure effective combines, controls drainage measure to the influence of farmland water use efficiency etc.In the existing known technology, survey hole, survey tube (lysimeter) and all design from the evaporation of research crop water.
Drainage test is according to the different soil depth of water in surveying the hole, measure crop and flooded the influence that (different flooding depths and waterflooding last) causes crop growth in the different bearing stage, try to achieve the crop flooding depth, waterflooding lasts and relation of yield, provides foundation for determining water logging control Drainage Design standard; Measure crop and be subjected to of the influence of stain degree, try to achieve difference and steeped the factor and relation of yield, provide foundation for determining design criteria for subsurface water control and water management to crop growth in different bearing stage, difference; Crop salt tolerant, the alkali resistance test of standard of drainage, critical depth of groundwater test etc. are determined in saline and alkaline area; And the survey pit device that is specifically designed to drainage test did not occur.
The utility model content
Technical problem to be solved in the utility model provides a kind of drainage test and surveys the hole, its have cheap, install simple, observation is convenient and the wide advantage of experiment with measuring scope.
For solving the problems of the technologies described above, the utility model adopts following technical proposals: a kind of drainage test is surveyed the hole, and it comprises surveys hole, loaded filter, soil layer, water pipe, water-level observation pipe, water temperature proving installation and removable water tank; Described survey hole is uncovered barrel-like structure, survey the bottom, hole and be equipped with loaded filter, the loaded filter upper surface of surveying in the hole evenly is equipped with soil layer, survey on the two side of cheating the bottom and offer through hole one respectively, through hole two, it is horizontally embedded in loaded filter that described water pipe passes the through hole one of surveying hole one side, described water-level observation pipe is fixedly connected on through hole two places that survey the hole opposite side, and the mouth of pipe of water-level observation pipe up, be convenient to observe the liquid level in the soil layer, the water temperature proving installation is fixed in surveys the hole upper inside wall, described removable water tank is slidingly connected to surveys lateral wall place, hole, described water pipe is fixedly connected on removable water tank bottom, the effect of removable water tank is to move up and down, and to regulate the soil layer flooding depth, the adaptation difference is flooded is subjected to the stain test.
On the water pipe between described survey hole and the water tank, be provided with water tank by-pass valve control and draining control valve door, the setting of draining control valve door is in order to control the accurate discharge of liquid in the soil layer, the holard of discharging in the soil is analyzed, reduce the output of agricultural nonpoint source pollution, realize the multi objective control of agricultural drain; The setting of water tank by-pass valve control is for when the accurate draining, liquid that can not in the water tank is discharged, save experimental water, and when carrying out the test of different flooding depths, close the draining control valve door, open the water tank by-pass valve control, regulate the height of water tank, can make liquid backflow water tank, be beneficial to the utilization again of water resource.
Described survey hole is for cheating with concrete casting or with the brick survey of concrete coating, and described survey hole is square barrel-like structure, and this structure can keep the least possible oozing out of test(ing) liquid.
Described loaded filter is made up of 2～4 layers of gravel and coarse sand, increases gradually along the direction gravel and the coarse sand particles of current, and the height of described loaded filter is 20～30cm.
The described through hole one that is equipped with water pipe is opened near the survey hole side-walls of surveying loaded filter bottom in the hole; The described through hole two that is fixedly connected with the water-level observation pipe is opened near the survey hole side-walls of surveying soil layer bottom in the hole; Described water temperature proving installation is arranged near on the survey hole madial wall of surveying soil layer top layer in the hole.
Described horizontally embedded water pipe in loaded filter is provided with at least one perforate along water pipe is vertical, be beneficial to upwards infiltration of liquid, and liquid is discharged downwards or the backflow water tank.
Described water-level observation pipe is " L " type transparent tube body, and this water-level observation pipe galianconism end is fixedlyed connected with the through hole two of cheating on the madial wall near the survey of surveying soil layer top layer in the hole.
Described removable water tank is made of uncovered water tank and slide rail, described slide rail is vertically fixed on to be surveyed on the lateral wall of hole, described uncovered water tank is snug fit on the slide rail, and the uncovered edge of water tank offers overflow vent, to keep the water level in the water tank constant.
Principle of work
Cast out with brick or concrete casting and to survey the hole, as when using brick survey hole, should carry out concrete coating in surveying the hole, loaded filter is laid on the bottom of surveying the hole with certain thickness (20-30cm), the PVC plastic tube of perforate lies in the loaded filter.The soil horizon of test is packed into equably and is surveyed in the hole.The lower end of water-level observation pipe is embedded in the soil layer bottom, and the survey hole madial wall on upper soll layer is provided with the water temperature proving installation, and water tank is installed on the slide rail of setting, connects water pipe, by-pass valve control and draining control valve door.Before on-test, to the water tank water-filling, open by-pass valve control by water filling, the water in the water tank enters into surveys the hole soil horizon, and observation being arranged on the water level in the water-level observation pipe of surveying soil horizon bottom, hole, till the height of water level that satisfies the test setting.When needs are controlled drainage test, closing control valve, open the draining control valve door, observe the height of water level in the water-level observation pipe, decline of water table in the soil horizon is closed the draining control valve door during to height that test is set, and the holard of discharging in the soil is analyzed, reduce the output of agricultural nonpoint source pollution, realize the multi objective control of agricultural drain.Also opening water discharge by-pass valve control not, and the unlatching of retentive control valve, and reduce the height of water tank simultaneously, make the holard pass back into water tank, recycle repeated use, can save the test water amount.
The utility model can be studied situation the influence that crop growth is caused of the different stain of being waterloged of crop, by surveying the hole test, can try to achieve the crop flooding depth, waterflooding lasts and relation of yield, for determining that water logging control Drainage Design standard provides foundation; Measure crop and be subjected to of the influence of stain degree, try to achieve difference and steeped the factor and relation of yield, provide foundation for determining design criteria for subsurface water control and water management to crop growth in different bearing stage, difference; Determine crop salt tolerant, the alkali resistance test of standard of drainage in saline and alkaline area; Critical depth of groundwater test etc.; Have cheap, install simple, observation is convenient and the wide advantage of experiment with measuring scope.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to shown in Figure 1, a kind of drainage test is surveyed the hole, and it comprises surveys hole 1, loaded filter 2, soil layer 3, water pipe 4, water-level observation pipe 5, water temperature proving installation 6 and removable water tank 7; Described survey hole 1 is uncovered barrel-like structure, survey 1 bottom, hole and be equipped with loaded filter 2, loaded filter 2 upper surfaces of surveying in the hole 1 evenly are equipped with soil layer 3, survey on the two side of cheating 1 bottom and offer through hole 1 respectively, through hole 2 12, it is horizontally embedded in loaded filter 2 that described water pipe 4 passes the through hole 1 of surveying hole 1 one sides, described water-level observation pipe 5 is fixedly connected on through hole 2 12 places that survey hole 1 opposite side, and the mouth of pipe of water-level observation pipe 5 up, water temperature proving installation 6 is fixed in surveys hole 1 upper inside wall, described removable water tank 7 is slidingly connected to surveys 1 lateral wall place, hole, and described water pipe 4 is fixedly connected on removable water tank 7 bottoms.
On the water pipe 4 between described survey hole 1 and the water tank 7, be provided with water tank by-pass valve control 8 and draining control valve door 9.
Described survey hole 1 is the survey hole with concrete casting, and described survey hole 1 is square barrel-like structure.
Described loaded filter 2 is made up of 3 layers of gravel and coarse sand, increases gradually along the direction gravel and the coarse sand particles of current, and the height of described loaded filter 2 is 25cm.
The described through hole 1 that is equipped with water pipe 4 is opened near the survey of surveying loaded filter 2 bottoms in the hole 1 and cheats 1 side-walls; The described through hole 2 12 that is fixedly connected with water-level observation pipe 5 is opened near the survey of surveying soil layer 3 bottoms in the hole 1 and cheats 1 side-walls; Described water temperature proving installation 6 is arranged near the survey of surveying soil layer 3 top layers in the hole 1 and cheats on 1 madial wall.
Described horizontally embedded water pipe 4 in loaded filter 2 is provided with 13 perforates 41 along water pipe is vertical.
Described water-level observation pipe 5 is " L " type transparent tube body, and these water-level observation pipe 5 galianconism ends are fixedlyed connected with the through hole 2 12 of cheating on 1 madial wall near the survey of surveying soil layer 3 top layers in the hole 1.
Described removable water tank 7 is made of uncovered water tank 71 and slide rail 72, described slide rail 72 is vertically fixed on to be surveyed on 1 lateral wall of hole, described uncovered water tank 71 is snug fit on the slide rail 72, and water tank 71 uncovered edges offer overflow vent 711.
As mentioned above; a kind of drainage test of the utility model is surveyed the hole; described embodiment and figure; it is the utility model implementation result preferably; be not to be confined to the utility model; approximate, identical person such as structure every and of the present utility model, feature all should belong to the scope that the utility model is protected.
Claims (8)
1. a drainage test is surveyed the hole, it is characterized in that: it comprises surveys hole (1), loaded filter (2), soil layer (3), water pipe (4), water-level observation pipe (5), water temperature proving installation (6) and removable water tank (7); Described survey hole (1) is uncovered barrel-like structure, survey bottom, hole (1) and be equipped with loaded filter (2), loaded filter (2) upper surface of surveying in the hole (1) evenly is equipped with soil layer (3), survey on the two side of cheating (1) bottom and offer through hole one (11) respectively, through hole two (12), it is horizontally embedded in loaded filter (2) that described water pipe (4) passes the through hole one (11) of surveying hole (1) one side, described water-level observation pipe (5) is fixedly connected on the through hole two (12) of surveying hole (1) opposite side and locates, and the mouth of pipe of water-level observation pipe (5) up, water temperature proving installation (6) is fixed in surveys hole (1) upper inside wall, described removable water tank (7) is slidingly connected to surveys (1) lateral wall place, hole, and described water pipe (4) is fixedly connected on removable water tank (7) bottom.
2. a kind of drainage test according to claim 1 is surveyed the hole, it is characterized in that: be provided with water tank by-pass valve control (8) and draining control valve door (9) on the water pipe (4) between described survey hole (1) and the water tank (7).
3. a kind of drainage test according to claim 1 and 2 is surveyed the hole, it is characterized in that: described survey hole (1) is for cheating with concrete casting or with the brick survey of concrete coating, and described survey hole (1) is square barrel-like structure.
4. a kind of drainage test according to claim 3 is surveyed the hole, and it is characterized in that: described loaded filter (2) is made up of 2～4 layers of gravel and coarse sand, increases gradually along the direction gravel and the coarse sand particles of current, and the height of described loaded filter (2) is 20～30cm.
5. a kind of drainage test according to claim 4 is surveyed the hole, it is characterized in that: the described through hole one (11) that is equipped with water pipe (4) is opened near survey hole (1) side-walls of surveying hole (1) interior loaded filter (2) bottom; The described through hole two (12) that is fixedly connected with water-level observation pipe (5) is opened near survey hole (1) side-walls of surveying hole (1) interior soil layer (3) bottom; Described water temperature proving installation (6) is arranged near on survey hole (1) madial wall of surveying (1) interior soil layer (3) top layer, hole.
6. a kind of drainage test according to claim 5 is surveyed the hole, it is characterized in that: described horizontally embedded water pipe (4) in loaded filter (2) is provided with at least one perforate (41) along water pipe is vertical.
7. a kind of drainage test according to claim 6 is surveyed the hole, it is characterized in that: described water-level observation pipe (5) is " L " type transparent tube body, and this water-level observation pipe (5) galianconism end is fixedlyed connected with the through hole two (12) of cheating on (1) madial wall near the survey of surveying (1) interior soil layer (3) top layer, hole.
8. a kind of drainage test according to claim 7 is surveyed the hole, it is characterized in that: described removable water tank (7) is made of uncovered water tank (71) and slide rail (72), described slide rail (72) is vertically fixed on to be surveyed on (1) lateral wall of hole, described uncovered water tank (71) is snug fit on the slide rail (72), and the uncovered edge of water tank (71) offers overflow vent (711).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200767759U CN202024993U (en) | 2011-03-22 | 2011-03-22 | Drainage test measuring pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200767759U CN202024993U (en) | 2011-03-22 | 2011-03-22 | Drainage test measuring pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202024993U true CN202024993U (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200767759U Expired - Fee Related CN202024993U (en) | 2011-03-22 | 2011-03-22 | Drainage test measuring pit |
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| Country | Link |
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| CN (1) | CN202024993U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183623A (en) * | 2011-03-22 | 2011-09-14 | 中国农业科学院农田灌溉研究所 | Drainage test measuring pit |
| CN103675231A (en) * | 2013-11-22 | 2014-03-26 | 长沙理工大学 | Soil layer settlement tester and testing method thereof |
| CN104698140A (en) * | 2015-03-25 | 2015-06-10 | 山西省水利水电科学研究院 | Economical adjustable underground water level lysimeter |
| CN110057402A (en) * | 2019-04-22 | 2019-07-26 | 三峡大学 | It is a kind of monitoring solid volume with variation of ambient temperature device and method |
| CN110146654A (en) * | 2019-05-30 | 2019-08-20 | 徐州市水利科学研究所 | A kind of flood stain comprehensive draining index Test device and its application method |
-
2011
- 2011-03-22 CN CN2011200767759U patent/CN202024993U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183623A (en) * | 2011-03-22 | 2011-09-14 | 中国农业科学院农田灌溉研究所 | Drainage test measuring pit |
| CN103675231A (en) * | 2013-11-22 | 2014-03-26 | 长沙理工大学 | Soil layer settlement tester and testing method thereof |
| CN103675231B (en) * | 2013-11-22 | 2015-08-19 | 长沙理工大学 | Soil layer settlement tester and testing method thereof |
| CN104698140A (en) * | 2015-03-25 | 2015-06-10 | 山西省水利水电科学研究院 | Economical adjustable underground water level lysimeter |
| CN110057402A (en) * | 2019-04-22 | 2019-07-26 | 三峡大学 | It is a kind of monitoring solid volume with variation of ambient temperature device and method |
| CN110146654A (en) * | 2019-05-30 | 2019-08-20 | 徐州市水利科学研究所 | A kind of flood stain comprehensive draining index Test device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20130322 |