CN115262515B - Method for monitoring dynamic pre-reclamation earth volume construction of coal mining subsidence land - Google Patents
Method for monitoring dynamic pre-reclamation earth volume construction of coal mining subsidence land Download PDFInfo
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- CN115262515B CN115262515B CN202210877310.6A CN202210877310A CN115262515B CN 115262515 B CN115262515 B CN 115262515B CN 202210877310 A CN202210877310 A CN 202210877310A CN 115262515 B CN115262515 B CN 115262515B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 78
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000005065 mining Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002689 soil Substances 0.000 claims abstract description 24
- 238000013461 design Methods 0.000 claims abstract description 9
- 238000012937 correction Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a method for monitoring the construction of dynamic pre-reclamation earthwork of a coal mining subsidence land, which relates to the technical field of land reclamation and comprises the following steps: step one, in the project design stage, calculating the average earthing thickness, and designing and monitoring the column position according to the sinking prediction contour line; embedding a monitoring column according to a designed position before construction and field entering, and marking the thickness of the covering soil of the monitoring column on the monitoring column; monitoring the inclination condition of the monitoring column during construction, calibrating and re-marking the thickness of the covered soil before earth acceptance when the inclination angle of the monitoring column is larger than 5 degrees, and simultaneously making records; fourthly, carrying out earth construction according to the marks of the monitoring columns, and marking positions after the earth covering construction reaches correction; and fifthly, leveling the ground after the construction of the earthwork reaches the requirement. The invention utilizes the monitoring piles to monitor the reclaimed earthwork quantity, and solves the problems that the earthwork quantity of the dynamic pre-reclaimed project earthwork of the coal mining subsidence land is difficult to determine and acceptance handover is difficult.
Description
Technical Field
The invention relates to the technical field of land reclamation, in particular to a method for monitoring the construction of dynamic pre-reclamation earthwork of coal mining subsidence land.
Background
During the construction period of dynamic pre-reclamation engineering of coal mining subsidence land, when the working face of a coal bed below a project area is mined, the elevation of the earth covering construction is also required to be changed along with the continuous decline of the elevation of the ground, the subsidence amount is uncertain, the acceptance elevation after the construction cannot be clarified during the design period, and if corresponding measures are not taken, the engineering construction and acceptance handover are difficult. Because the dynamic pre-reclamation project of the coal mining subsidence land lacks relevant treatment experience, the technical aspect of monitoring the earthwork volume of the dynamic pre-reclamation construction of the coal mining subsidence land is still blank.
Disclosure of Invention
The invention aims to provide a method for monitoring the construction of the dynamic pre-reclamation earthwork quantity of a coal mining subsidence land, which aims to solve the problems of the prior art, and the problems that the dynamic pre-reclamation project earthwork quantity of the coal mining subsidence land is difficult to determine and acceptance handover is difficult to carry out by utilizing a monitoring pile to monitor the reclamation earthwork quantity.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a method for monitoring the construction of the dynamic pre-reclamation soil volume of a coal mining subsidence land, which comprises the following steps:
step one, in the project design stage, calculating the average earth covering thickness, and designing and monitoring the column position according to the sinking prediction contour line;
Embedding a monitoring column according to a designed position before construction and field entering, and marking the thickness of the covering soil of the monitoring column on the monitoring column;
Step three, calibrating, namely monitoring the inclination condition of the monitoring column during construction, and calibrating and re-marking the thickness of the covering soil before earth acceptance when the inclination angle of the monitoring column is larger than 5 degrees, and simultaneously making records;
fourthly, carrying out earth construction according to the marks of the monitoring columns, and marking positions after the earth covering construction reaches correction;
And fifthly, leveling the ground after the construction of the earthwork reaches the requirement.
Optionally, in the first step, according to the area S of the reclaimed land, the required soil volume V 0 for reclamation, the average soil covering thickness H 0＝V0/S is calculated; the monitoring column positions are arranged in the directions parallel and perpendicular to the sinking contour line.
Optionally, in the second step, the current average ground elevation H 1 of the land block is calculated by a triangulation method, and then the earth elevation H Label (C) ＝H1+H0 is constructed. And calculating the earth covering thickness h Thickness of thick ＝H Label (C) -hn of each of the n monitoring columns according to the measured elevation h 1、h2...hn when each monitoring column is buried. And marking the soil covering thickness h Thickness of thick of each monitoring column on the monitoring column according to the calculation.
Optionally, the correction increasing thickness h School and school is calculated by: when the covering soil after inclination reaches the marking position h Thickness of thick , the actual covering soil thickness is h Thickness of thick ′＝h Thickness of thick multiplied by cos theta, and the covering soil thickness reduction amount h Reduction of ＝h Thickness of thick -h Thickness of thick ', the marking position increase amount h School and school ＝h Reduction of multiplied by cos theta of the corrected monitoring column; θ is the monitor column tilt angle.
Optionally, the monitoring post main part is the square steel pipe of side length 10cm, and square steel pipe bottom welding has the steel sheet base of diameter 30cm, monitoring post bottom buries underground 0.7m, just the monitoring post buries underground part and has pour 0.8m1 1 concrete pier 0.8m1.
Compared with the prior art, the invention has the following technical effects:
The earth volume of the dynamic pre-reclamation project of the coal mining subsidence area is fixed, and the ground elevation of the subsidence area is changed during the construction, but the overall earth volume reaches the design requirement as long as the earth covering thickness of each position of the construction area is ensured to reach the design requirement. According to the invention, the monitoring posts are designed, the carved and needed earthing heights are marked on the monitoring posts, the earthing thickness of each region of the project area is monitored, and the earthing thickness of each region is ensured to reach the marked earthing height of the monitoring posts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic plan view of a reclaimed land parcel;
FIG. 2 is a schematic cross-sectional view of a reclaimed land block;
FIG. 3 is a schematic diagram of calibration calculation after monitoring column tilt;
FIG. 4 is a schematic diagram of a monitor column structure;
Wherein, 1-reclamation land block, 2-elevation point, 3-monitoring column, 4-land before reclamation, 5-construction earthwork elevation, 6-land average land elevation before reclamation, 7-square steel pipe, 8-steel plate and 9-cement pier.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a method for monitoring the construction of the dynamic pre-reclamation earthwork quantity of a coal mining subsidence land, which aims to solve the problems of the prior art, and the problems that the dynamic pre-reclamation project earthwork quantity of the coal mining subsidence land is difficult to determine and acceptance handover is difficult to carry out by utilizing a monitoring pile to monitor the reclamation earthwork quantity.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention provides a method for monitoring the construction of the dynamic pre-reclamation soil volume of a coal mining subsidence land, which is shown in figures 1,2 and 3 and comprises the following steps:
In the project design stage, according to the area S of a reclaimed land block 1, the required soil volume V 0 is calculated, the average earthing thickness H 0＝V0/S is calculated, the positions of the monitoring columns 3 are designed according to the subsidence prediction contour line, the positions of the monitoring columns 3 are distributed according to the directions parallel and perpendicular to the subsidence contour line, the distribution interval is set according to the actual condition of the subsidence contour line, 50m is generally selected, and the positions of the monitoring columns 3 are marked on a design drawing. The length of the designed monitoring column 3 is determined according to the thickness of the covering soil, as shown in fig. 4, the length of the designed monitoring column is 0.7m below the ground 4 before reclamation, a square steel pipe 7 with the side length of 10cm is adopted as a column main body, a steel plate 8 with the bottom welded with the diameter of 30cm is adopted as a base, and a cement column pier 9 with the diameter of 0.8m x 1m is poured below and fixed.
Step two, before construction approach, the monitoring column 3 is buried by using a handheld GPS according to the design position. Because of coal exploitation below, ground deformation, the ground elevation of a project area needs to be measured again, the distance between measured elevation points 2 is not more than 15m, gao Chengdian is spread into cad, the average ground elevation 6 of the ground 4 before reclamation is calculated to be H 1 by a triangulation network method, and the construction earthwork elevation 5 is H Label (C) ＝H1+H0. And calculating the earthing thickness h Thickness of thick ＝H Label (C) -hn of the nth monitoring column according to the measured elevation h 1、h2...hn when each monitoring column is buried. And marking the soil covering thickness h Thickness of thick of each monitoring column on the monitoring column according to the calculation.
Step three, calibrating: due to the fact that the ground subsides and construction influences are caused during construction, inclination of part of the monitoring column 3 can occur, the inclination condition of the monitoring column 3 is monitored during construction, when the inclination angle of the monitoring column 3 is larger than 5 degrees, the thickness of the covering soil needs to be calibrated and re-marked before earth acceptance, and meanwhile records are made. Assuming that the inclination angle is θ (θ >5 °), the correction increase thickness h School and school is calculated as follows:
When the actual covering thickness is h Thickness of thick ′＝h Thickness of thick x cos theta and the covering thickness is reduced by h Reduction of ＝h Thickness of thick -h Thickness of thick ' after the inclination reaches the marking position h Thickness of thick , the marking position of the corrected monitoring column 3 is increased by h School and school ＝h Reduction of /cos theta, and the covering position needs to be marked again by increasing the distance h School and school from the original marking position h Thickness of thick along the direction of the monitoring column 3.
And fourthly, carrying out earthwork construction according to the marks of the monitoring columns 3, and marking positions after the earthwork earthing construction reaches correction.
And fifthly, because the ground subsidence amount of each part in the land block is inconsistent during construction, the elevation of the ground is inconsistent after the monitoring posts 3 correct the earthing, the height of the ground in the land block is uneven, and the ground is leveled after the construction of the soil amount meets the requirement.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (2)
1. A method for monitoring the construction of dynamic pre-reclamation earthwork of coal mining subsidence land is characterized by comprising the following steps: the method comprises the following steps:
Step one, in the project design stage, calculating the average earth covering thickness, and designing and monitoring the column position according to the sinking prediction contour line; according to the area S of the reclaimed land, the required soil quantity V 0 for reclamation is calculated to obtain the average earthing thickness H 0=V0/S; the positions of the monitoring columns are distributed in the directions parallel and perpendicular to the sinking contour line;
Embedding a monitoring column according to a designed position before construction and field entering, and marking the thickness of the covering soil of the monitoring column on the monitoring column; calculating the current average ground elevation H 1 of the land block by a triangular network method, constructing an earth elevation H Label (C) =H1+H0, calculating the earth covering thickness H Thickness of thick =H Label (C) -hn of each of n monitoring columns according to the measured elevation H 1、h2...hn when each of the monitoring columns is buried, and marking the earth covering thickness H Thickness of thick of each of the monitoring columns on the monitoring columns according to the calculation;
Step three, calibrating, namely monitoring the inclination condition of the monitoring column during construction, and calibrating and re-marking the thickness of the covering soil before earth acceptance when the inclination angle of the monitoring column is larger than 5 degrees, and simultaneously making records; the calculation process of the correction increasing thickness h School and school is as follows: when the covering soil after inclination reaches the marking position h Thickness of thick , the actual covering soil thickness is h Thickness of thick ′=h Thickness of thick multiplied by cos theta, and the covering soil thickness reduction amount h Reduction of =h Thickness of thick -h Thickness of thick ', the marking position increase amount h School and school =h Reduction of multiplied by cos theta of the corrected monitoring column; θ is the monitor column tilt angle;
fourthly, carrying out earth construction according to the marks of the monitoring columns, and marking positions after the earth covering construction reaches correction;
And fifthly, leveling the ground after the construction of the earthwork reaches the requirement.
2. The method for monitoring the dynamic pre-reclamation soil volume construction of the coal mining subsidence area according to claim 1, which is characterized by comprising the following steps: the monitoring column main body is a square steel pipe with the side length of 10cm, a steel plate base with the diameter of 30cm is welded at the bottom of the square steel pipe, the bottom of the monitoring column is buried underground by 0.7m, and a part of the monitoring column buried underground is poured with 0.8m0.8m1 concrete column pier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210877310.6A CN115262515B (en) | 2022-07-25 | 2022-07-25 | Method for monitoring dynamic pre-reclamation earth volume construction of coal mining subsidence land |
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| CN202210877310.6A CN115262515B (en) | 2022-07-25 | 2022-07-25 | Method for monitoring dynamic pre-reclamation earth volume construction of coal mining subsidence land |
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| CN115262515B true CN115262515B (en) | 2024-06-04 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184140A (en) * | 1995-12-28 | 1997-07-15 | Fujita Corp | Combined consolidation test method and equipment for predicting settlement due to consolidation of filled ground |
| CN101422094A (en) * | 2007-11-02 | 2009-05-06 | 煤炭科学研究总院唐山研究院 | Thick-bed mining subsidence-land dynamic pre-reclamation method at plane mining-area |
| JP2009250007A (en) * | 2008-04-11 | 2009-10-29 | Taisei Corp | Countermeasure method for ground subsidence |
| WO2009138053A1 (en) * | 2008-05-16 | 2009-11-19 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Method for calibrating a thickness gauge |
| CN103235853A (en) * | 2013-04-21 | 2013-08-07 | 中国矿业大学(北京) | Earthwork balance based dike-pond layout method used for coal mining while refilling in coal-mining subsidence |
| JP2014194382A (en) * | 2013-03-29 | 2014-10-09 | Ttk Corp | Residual average thickness estimation method based on estimation of average corrosion depth in ground-level corrosion impairment part |
| JP2015014113A (en) * | 2013-07-04 | 2015-01-22 | 前田建設工業株式会社 | Automatic soil volume calculation system in filling work |
| CN107304559A (en) * | 2016-04-18 | 2017-10-31 | 中国矿业大学(北京) | The restorative procedure of ribbon Collapse Pit |
| JP2018062753A (en) * | 2016-10-12 | 2018-04-19 | 戸田建設株式会社 | Management method on embankment filling height per day on soft ground |
| CN107989612A (en) * | 2018-01-08 | 2018-05-04 | 西安科技大学 | A kind of high ground-water level coal field dynamic is reclaimed new method in advance |
| CN114674277A (en) * | 2022-03-17 | 2022-06-28 | 辽宁大学 | Method for monitoring surface subsidence of deep mining and evaluating land reclamation suitability by combining whole-field survey lines |
| CN114718038A (en) * | 2022-04-11 | 2022-07-08 | 临沂矿业集团菏泽煤电有限公司彭庄煤矿 | Method for treating 'back mining' subsidence land |
-
2022
- 2022-07-25 CN CN202210877310.6A patent/CN115262515B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184140A (en) * | 1995-12-28 | 1997-07-15 | Fujita Corp | Combined consolidation test method and equipment for predicting settlement due to consolidation of filled ground |
| CN101422094A (en) * | 2007-11-02 | 2009-05-06 | 煤炭科学研究总院唐山研究院 | Thick-bed mining subsidence-land dynamic pre-reclamation method at plane mining-area |
| JP2009250007A (en) * | 2008-04-11 | 2009-10-29 | Taisei Corp | Countermeasure method for ground subsidence |
| WO2009138053A1 (en) * | 2008-05-16 | 2009-11-19 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Method for calibrating a thickness gauge |
| JP2014194382A (en) * | 2013-03-29 | 2014-10-09 | Ttk Corp | Residual average thickness estimation method based on estimation of average corrosion depth in ground-level corrosion impairment part |
| CN103235853A (en) * | 2013-04-21 | 2013-08-07 | 中国矿业大学(北京) | Earthwork balance based dike-pond layout method used for coal mining while refilling in coal-mining subsidence |
| JP2015014113A (en) * | 2013-07-04 | 2015-01-22 | 前田建設工業株式会社 | Automatic soil volume calculation system in filling work |
| CN107304559A (en) * | 2016-04-18 | 2017-10-31 | 中国矿业大学(北京) | The restorative procedure of ribbon Collapse Pit |
| JP2018062753A (en) * | 2016-10-12 | 2018-04-19 | 戸田建設株式会社 | Management method on embankment filling height per day on soft ground |
| CN107989612A (en) * | 2018-01-08 | 2018-05-04 | 西安科技大学 | A kind of high ground-water level coal field dynamic is reclaimed new method in advance |
| CN114674277A (en) * | 2022-03-17 | 2022-06-28 | 辽宁大学 | Method for monitoring surface subsidence of deep mining and evaluating land reclamation suitability by combining whole-field survey lines |
| CN114718038A (en) * | 2022-04-11 | 2022-07-08 | 临沂矿业集团菏泽煤电有限公司彭庄煤矿 | Method for treating 'back mining' subsidence land |
Non-Patent Citations (2)
| Title |
|---|
| 卞正富等.矿区土地复垦规划的理论与实践.煤炭工业出版社,1996,115-118. * |
| 基于GIS的采煤塌陷区土地复垦项目规划设计研究;王慎敏;金晓斌;周寅康;张伟;;地理科学(02);195-199 * |
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| CN115262515A (en) | 2022-11-01 |
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