CN103650695A - Method for leveling land according to soil layer thicknesses - Google Patents
Method for leveling land according to soil layer thicknesses Download PDFInfo
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- CN103650695A CN103650695A CN201310696017.0A CN201310696017A CN103650695A CN 103650695 A CN103650695 A CN 103650695A CN 201310696017 A CN201310696017 A CN 201310696017A CN 103650695 A CN103650695 A CN 103650695A
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Abstract
The invention discloses a method for leveling land according to soil layer thickness. The method includes the following steps that firstly, a plurality of probe points are selected from a land region according to the cross interval method or the s-shape method or the quincunx and diagonal method or the chessboard method, wherein elevation differences exist between the probe points; secondly, the soil layer thicknesses are measured, namely, the thicknesses of spaces between the probe points and a gravel layer or a bed rock layer are measured according to the soil profile digging method or the soil drilling method or the ground penetrating radar method and are the soil layer thicknesses; thirdly, the land is leveled, wherein the gradient of the leveled land is smaller than or equal to 0.5%. The profile of soil is detected, the land is leveled according to soil layer thickness general investigation and exploration results to ensure that the soil layer thicknesses meet land engineering construction standards and corn growth requirements, and the earthwork transfer workload is reduced.
Description
Technical field
The present invention relates to land control field, be specifically related to a kind of method of carrying out land readjustment according to soil thickness.
Background technology
The target of current China land control is mainly to increase arable area, the total amount dynamic equilibrium of guaranteeing to plough, and land control planned project considers it is more to increase the quantity of ploughing, and has ignored the quality of ploughing, and for example, has ignored newly-increased arable land soil thickness.Land readjustment is as an important engineering measure of land control, for ensureing that completing smoothly of land control engineering has extremely important effect.The important preparation in early stage is implemented in the general spy of soil thickness as land leveling project, smooth rear newly-increased arable soil profile construction in direct regulation and control, and then affects newly-increased quality of ploughing.But land readjustment at present mostly lacks soil thickness is detected early stage, cause smooth later stage soil thickness can not meet land engineering construction reference and plant growth needs, make economy, society and the ecological benefits of land control cannot reach optimal couple state.
Summary of the invention
The soil layer that occurs for the land control later stage is excessively thin, chad layer or the phenomenon such as horizon d is exposed, the invention provides a kind of method of carrying out land readjustment according to soil thickness.The object of the invention is to, by soil profile is surveyed, according to the general spy result of soil thickness, carry out land readjustment, guarantee that soil thickness meets land engineering construction reference and plant growth needs, reduce a cubic metre of earth transhipment workload.
Technical scheme of the present invention is as follows:
According to soil thickness, carry out a method for land readjustment, its special character is: comprise the following steps,
1] choose sensing point:
Choose region, soil, in this region, soil, choose a plurality of sensing points, between each sensing point, have depth displacement;
Report to the leadship after accomplishing a task interval method, s shape method, quincunx, diagonal method or chessboard method of employing chosen sensing point;
Described transpostion interval method is that layout in poor interval along plot, and keeps sensing point to be roughly uniformly distributed; S shape method is with the sampling point that distributes of coming in before complications, tortuous number of times according to the length in region, soil, the density of sampling point and changing, generally between 3-7 time; Quincunx and chessboard rule is respectively to layout in region, soil according to plum blossom, chessboard shape; Diagonal method is to choose a plurality of sensing points along two diagonal in region, soil, and keeps the quantity of the sensing point chosen on two diagonal to equate.
2] measure soil thickness:
Utilize soil profile to take method, soil drilling method or GPR method and measure sensing point to the thickness of chad layer or horizon d, this thickness is soil thickness;
3] land readjustment:
If step 2] minimum of a value of soil thickness of each sensing point of measuring is greater than step 1] in highest elevation between each sensing point poor, to step 1] in region, selected soil directly carry out land readjustment; The gradient ratio in smooth rear soil is less than or equal to 5 ‰;
If step 2] minimum of a value of soil thickness of each sensing point of measuring is lower than step 1] in highest elevation between each sensing point poor, first whole soil in region, soil are taken to concentrate and stack, after the following chad layer of smooth soil layer or horizon d, the land smoothing taking is covered on chad layer or horizon d, the gradient in smooth rear soil ratio is less than or equal to 5 ‰ again.
The distribution density of above-mentioned sensing point is: 9-11 sensing point of every mu of ground distribution.
Above-mentioned steps 1] in soil region comprise a plurality of land units, this land unit is to take 100 mu as a unit, 1000 sensing points of each unit selection.
When region, soil is rectangle, adopt report to the leadship after accomplishing a task interval method or s shape method to choose sensing point;
When region, soil is when square, adopt quincunx, diagonal method or chessboard method to choose sensing point;
Above-mentioned steps 3] carry out the soil thickness >=30cm after smooth, preferably 50-80cm.
Advantage of the present invention:
The present invention is reflect soil level distribution situation accurately, verifies soil thickness and whether meets smooth thickness balance requirement in tillage requirements or no energy feasible region; Avoid in the situation that soil layer is excessively thin, the chad layer or the horizon d that adopt irrational smooth measure to cause are exposed; Can effectively reduce a cubic metre of earth running workload, guarantee that soil thickness meets land engineering construction reference and plant growth needs.
Accompanying drawing explanation
Fig. 1 is that the interval method of reporting to the leadship after accomplishing a task is chosen the schematic diagram of sensing point;
Fig. 2 is the quincunx schematic diagram of choosing sensing point;
Fig. 3 is the schematic diagram that diagonal method is chosen sensing point;
Fig. 4 is the schematic diagram that S shape method is chosen sensing point;
Fig. 5 is the schematic diagram that chessboard method is chosen sensing point;
Fig. 6 is the schematic diagram that the embodiment of the present invention is chosen sensing point;
Fig. 7 is land readjustment field division figure.
1-the first sensing point; 2-the second sensing point; 3-the 3rd sensing point; 4-the 4th sensing point; 5-the first field region; 6-the second field region; 7-the 3rd field region.
Embodiment
The invention provides a kind of method of carrying out land readjustment according to soil thickness, comprise the following steps:
1] choose sensing point:
Choose region, soil, in this region, soil, choose a plurality of sensing points, between each sensing point, have depth displacement; The distribution density of sensing point is: 9-11 sensing point of every mu of ground distribution, preferably 10.
The difference of base area block size and tendency and select the interval method of reporting to the leadship after accomplishing a task, s shape method, quincunx, diagonal method or chessboard method to choose sensing point; Diagonal method is to choose a plurality of sensing points along two diagonal in region, soil, and keeps the quantity of the sensing point chosen on two diagonal to equate.
The interval method (Fig. 1) of reporting to the leadship after accomplishing a task is applicable to rectangle plot; Quincunx (Fig. 2) or diagonal method (Fig. 3) method are applicable to less square plot; S shape method (Fig. 4) is applicable to the sampling of long and narrow plot; Checkerboard type (Fig. 5) is applicable to comparatively broad and approximate square plot.
So, when region, soil is rectangle, can adopt report to the leadship after accomplishing a task interval method or s shape method to choose sensing point; When region, soil is when square, can adopt quincunx, diagonal method or chessboard method to choose sensing point.
2] measure soil thickness:
Utilize soil profile to take method, soil drilling method or GPR method and measure sensing point to the thickness of chad layer or horizon d, this thickness is soil thickness.
Soil profile takes method: soil profile is the vertical cross section of a concrete soil, till its degree of depth generally reaches the suitable degree of depth of basement rock and surficial deposit body.By the distance between direct mensuration top layer and parent rock horizon, can learn soil thickness.
Soil drilling method: make earth boring auger vertically downward until touch matrix, parent rock or groundwater level, record earth's surface to the distance between parent rock, be soil thickness.
GPR method: utilize an antenna transmission high-frequency wideband electromagnetic wave, another antenna reception is from the back wave at underground medium interface and a kind of electromagnetic method of carrying out the detection of underground medium structure.By surveying, can react soil thickness.
3] land readjustment:
If step 2] measure the minimum of a value of minimum of a value soil thickness be greater than step 1] in highest elevation between each sensing point poor, to step 1] in region, selected soil directly carry out land readjustment;
If step 2] measure the minimum of a value of minimum of a value soil thickness lower than step 1] in highest elevation between each sensing point poor, first whole soil in region, soil are taken to concentrate and stack, after the following chad layer of smooth soil layer or horizon d, then the land smoothing taking is covered on chad layer or horizon d.
If soil thickness is lower than the depth displacement of indivedual sensing points, can adjust land readjustment design according to the general spy result of soil thickness, region, soil is divided into the smooth region of different fields carries out smooth, guarantee that soil thickness meets land engineering construction reference and plant growth needs, reduce a cubic metre of earth transhipment workload.
The gradient ratio in smooth rear soil is less than or equal to 5 ‰; Soil thickness >=30cm after smooth, better when soil thickness is 50-80cm.
Step 1] in soil region can comprise a plurality of land units, this land unit is to take 100 mu as a unit, 1000 sensing points of each unit selection.
Embodiment
In North Shaanxi, Shaanxi Province, utilize the present invention, select region, soil, according to original place block layout, river trend, road etc., Project Areas is divided into 86 fields, use the general spy technology of soil, according to dividing field layout, as Fig. 4, with s shape method, in selected region, lay sensing point, and each sensing point soil thickness is measured to (as shown in Figure 6), according to measurement result, formulate rational land readjustment scheme.In Fig. 2, the first sensing point 1 elevation is 142.16m, when the downward 2.5m of sensing point, have no chad layer or horizon d, the elevation of the second sensing point 2 is 139.47m, during downward 1.4m, have no chad layer or horizon d, the elevation of the 3rd sensing point 3 is 138.95m, has no chad layer or horizon d during downward 2.3m, the elevation of the 4th sensing point 4 is 137.29m, has no chad layer or horizon d during downward 2.3m.
The depth displacement of the first sensing point and other three sensing points is all greater than the soil thickness of the first sensing point,
Therefore the first sensing point region is divided into separately the first field region, the depth displacement of the 3rd sensing point and the 4th sensing point is 1.66m, all be less than the soil thickness of the 3rd sensing point and the 4th sensing point, these two points (the 3rd sensing point and the 4th sensing point) region is divided into the 3rd field region (as shown in Figure 7).
Wherein, the elevation in the present invention is height above sea level.
Through earthwork balance and backfilling new soil, land readjustment is carried out in Project Areas, amount to mobile cubic metre of earth 252.48 ten thousand sides.On the basis of land leveling project, the engineerings such as irrigation, draining, field protection have been carried out.Surface water is chosen in irrigation, builds overfall dam, through channel, is delivered to each field; Drainage system was met flood control standard according to 20 years one, built stone masonry and protected case drainage ditch; Road engineering be take raceway groove trend as skeleton, builds road, field and production road.By engineerings such as tree planting, check dam, bank protections, carry out ecological shelter forest construction.Quantity has: Xin Xiu and reconstruct 95675 meters of all kinds of channels, and 3 of newly-built and maintenance overfall dams, 5 of newly-built pumping plants, 4 of newly-built and maintenance bridges and culverts, 2 of newly-built aqueducts, agriculture is contained 4.Supporting 5 water pumps, 3 transformers.Newly-built and build 14026 meters, road, plant trees 25164.Complete newly-increased 10.08 hectares (151.2 mu) of ploughing, total construction scale reaches 346.67 hectares (5200.5 mus).By this example, can be found out, the general spy technology of soil is being brought into play extremely important effect in land leveling project, for guaranteeing that soil thickness meets land engineering construction reference and plant growth needs, reduces a cubic metre of earth transhipment workload and all has extremely important effect.
The present invention has realized a kind of for the method for designing with reflection soil thickness in land control engineering construction early stage, through surveying, can realize ground to the mensuration of chad layer or the horizon d degree of depth.For accurate reflect soil level distribution situation, verify soil thickness whether can meet tillage requirements or no can feasible region in the requirement of smooth thickness balance, avoid irrational smooth measure cause chad layer or horizon d exposed significant.Can effectively realize land engineering construction reference and plant growth needs, less cubic metre of earth of running workload.
Claims (6)
1. according to soil thickness, carry out a method for land readjustment, it is characterized in that: comprise the following steps,
1] choose sensing point:
Choose region, soil, in this region, soil, choose a plurality of sensing points, between each sensing point, have depth displacement;
Report to the leadship after accomplishing a task interval method, s shape method, quincunx, diagonal method or chessboard method of employing chosen sensing point;
2] measure soil thickness:
Utilize soil profile to take method, soil drilling method or GPR method and measure sensing point to the thickness of chad layer or horizon d, this thickness is soil thickness;
3] land readjustment:
If step 2] minimum of a value of soil thickness of each sensing point of measuring is greater than step 1] in highest elevation between each sensing point poor, to step 1] in region, selected soil directly carry out land readjustment; The gradient ratio in smooth rear soil is less than or equal to 5 ‰;
If step 2] minimum of a value of soil thickness of each sensing point of measuring is lower than step 1] in highest elevation between each sensing point poor, first whole soil in region, soil are taken to concentrate and stack, after the following chad layer of smooth soil layer or horizon d, the land smoothing taking is covered on chad layer or horizon d, the gradient in smooth rear soil ratio is less than or equal to 5 ‰ again.
2. method of carrying out land readjustment according to soil thickness according to claim 1, is characterized in that: the distribution density of described sensing point is: 9-11 sensing point of every mu of ground distribution.
3. method of carrying out land readjustment according to soil thickness according to claim 2, is characterized in that: described step 1] in soil region comprise a plurality of land units, this land unit is to take 100 mu as a unit, 1000 sensing points of each unit selection.
4. according to the method for carrying out land readjustment according to soil thickness described in claim 1 or 2 or 3, it is characterized in that: when region, soil is rectangle, adopt report to the leadship after accomplishing a task interval method or s shape method to choose sensing point; When region, soil is when square, adopt quincunx, diagonal method or chessboard method to choose sensing point.
5. method of carrying out land readjustment according to soil thickness according to claim 4, is characterized in that: described step 3] carry out the soil thickness >=30cm after smooth.
6. method of carrying out land readjustment according to soil thickness according to claim 5, is characterized in that: described step 3] soil thickness that carries out after smooth is 50-80cm.
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Cited By (6)
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| CN108012608A (en) * | 2017-11-20 | 2018-05-11 | 中国农业大学 | A kind of prepartion of land method based on GNSS |
| CN108828182A (en) * | 2018-04-16 | 2018-11-16 | 贵州师范大学 | A kind of dedicated depression in Karst region or the quick sampling Detection method of farming land soil |
| CN112034452A (en) * | 2020-08-28 | 2020-12-04 | 浙大城市学院 | Ground penetrating radar suitable for judging underground overbreak of quarry and judging method thereof |
| CN114916276A (en) * | 2022-04-18 | 2022-08-19 | 张景燕 | Method for leveling land according to soil layer thickness |
| US11530526B2 (en) | 2020-03-27 | 2022-12-20 | Cnh Industrial America Llc | System and method for performing an earthmoving operation |
| WO2024046326A1 (en) * | 2022-09-02 | 2024-03-07 | 陕西地建土地工程技术研究院有限责任公司 | Water and soil resource comprehensive improvement method for loess hilly and gully region channels |
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| CN102282925A (en) * | 2011-05-26 | 2011-12-21 | 中国农业大学 | Land leveling method and device as well as land leveling control device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108012608A (en) * | 2017-11-20 | 2018-05-11 | 中国农业大学 | A kind of prepartion of land method based on GNSS |
| CN108828182A (en) * | 2018-04-16 | 2018-11-16 | 贵州师范大学 | A kind of dedicated depression in Karst region or the quick sampling Detection method of farming land soil |
| CN108828182B (en) * | 2018-04-16 | 2020-09-01 | 贵州师范大学 | Method for quickly sampling and detecting soil of special depression or agricultural land in karst region |
| US11530526B2 (en) | 2020-03-27 | 2022-12-20 | Cnh Industrial America Llc | System and method for performing an earthmoving operation |
| CN112034452A (en) * | 2020-08-28 | 2020-12-04 | 浙大城市学院 | Ground penetrating radar suitable for judging underground overbreak of quarry and judging method thereof |
| CN112034452B (en) * | 2020-08-28 | 2023-07-07 | 浙大城市学院 | Ground penetrating radar suitable for judging underground overexcavation of quarry and judging method thereof |
| CN114916276A (en) * | 2022-04-18 | 2022-08-19 | 张景燕 | Method for leveling land according to soil layer thickness |
| WO2024046326A1 (en) * | 2022-09-02 | 2024-03-07 | 陕西地建土地工程技术研究院有限责任公司 | Water and soil resource comprehensive improvement method for loess hilly and gully region channels |
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