WO2020062834A1 - 针对封闭充水溶洞的体积测量***及方法 - Google Patents
针对封闭充水溶洞的体积测量***及方法 Download PDFInfo
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- WO2020062834A1 WO2020062834A1 PCT/CN2019/082304 CN2019082304W WO2020062834A1 WO 2020062834 A1 WO2020062834 A1 WO 2020062834A1 CN 2019082304 W CN2019082304 W CN 2019082304W WO 2020062834 A1 WO2020062834 A1 WO 2020062834A1
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- Prior art keywords
- water
- piston
- collecting device
- cave
- water collecting
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 title claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 13
- 238000004090 dissolution Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 10
- 235000019994 cava Nutrition 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/003—Determining well or borehole volumes
Definitions
- the invention relates to the technical field of volume measurement of karst caves in underground engineering, in particular to a system-level method for volume measurement of closed water-filled karst caves.
- the construction unit does not know the exact volume of the cave, so it cannot formulate a corresponding implementation plan.
- This unknownness has caused the consumption of human and material resources, increased costs, and even caused process disturbances and delays in the construction period. .
- there are many methods for measuring volume For example, three-dimensional laser scanning is used to obtain point cloud information inside the cave to build a three-dimensional model of the cave. The volume of the model is calculated by calculating the volume of the model.
- the laser penetrating power is not strong.
- the attenuation is fast, and the beam is completely attenuated before it reaches the cave wall.
- the cost of measuring volume with sonar is too high. How to invent a method for quickly obtaining the volume of karst caves has become an urgently needed technical problem.
- the purpose of the present invention is mainly to solve some engineering application problems mentioned above, and to provide a volume measurement system and method for closed water-filled karst caves.
- the present invention adopts the following technical solutions:
- a volume measurement system for a closed water-filled cave includes a water collecting device, a concentration tester, and a control system.
- the control system is connected to the water collecting device through a connector.
- the water collecting device is closed at the top and open at the bottom.
- the top of the water collecting device is a piston, and the piston is connected with a propulsion rod, and the propulsion rod is controlled by a control system to extend or contract to achieve forward or backward movement of the piston.
- the inner wall of the water device is hinged with an openable and detachable placing table, and the placing table is connected to the piston. When the piston is raised, the placing table moves upward, and when the piston is lowered, the placing table moves downward.
- the placing table is used for placing chemical substances; the concentration tester communicates with the lower part of the water collecting device and is used for detecting the concentration of the solution.
- the water collecting device and the concentration tester are connected to the control system through a connecting member, and the control system controls the action of the connecting member to place the water collecting device and the concentration tester in the karst cave to be tested or take out the karst cave to be tested.
- the method for measuring the volume of a closed water-filled cave using the above device includes the following steps:
- Step 1 clean the hole for the hole that exposes the water-filled karst cave; place a protective casing in the hole and fix the casing on the ground;
- Step 2 Connect the console to the water collection device and the concentration tester through the connector; place the chemical substance powder on the placement table in the water collection device; fix the console to the ground; place the water collection device and concentration tester along the sleeve The tube extends into the cave;
- Step 3 When the instrument is lowered into the cave and the water is not deep enough to facilitate the extraction of the test liquid, fix the position of the instrument;
- Step 4 Through the ground console, move the propulsion rod downwards, and the piston also moves downwards; here, the placement table gradually opens with the downward movement of the piston, and the chemical powder of mass m inside the water collecting device is located. Fall into the water body in the dissolution chamber together; after a period of diffusion process, the chemical powder dissolves in the dissolution chamber and gradually diffuses away;
- Step 5 Control the piston to move upwards through the control system, and the solution in the dissolution chamber enters the collection device; the container for the concentration tester's test liquid communicates with the interior of the water collection device. When the water in the water collection device is filled, the solution enters the concentration tester In the container of test liquid, complete the operation of extracting the solution once;
- Step 7 Drain the liquid from the water collecting device and collect the liquid in the cave again. Measure the concentration of the collected liquid with a concentration tester. Repeat the measurement multiple times and record the values in turn. Know the mass of the chemical substance is m, after formula Calculate the final volume V of the water-filled cave;
- Step 8 Complete the survey and return the equipment to the ground.
- the chemical substance is a substance that does not react with water or air components, it is easy to put it in water, and it has a fast diffusion rate in liquids; for example: sodium chloride, and other Eligible substances, etc.
- the water collecting device at the bottom of the device can freely complete the water supply and drainage, and the water collecting device is used to extract water in the cave to facilitate concentration measurement.
- the opening and closing of the bottom of the water collecting device is controlled by the ground.
- the measuring instrument can measure the concentration of the chemical substance on the extracted liquid.
- the concentration tester's concentration value of the measured substance becomes stable, the value is automatically recorded and a prompt is issued to ensure that the stable concentration of the substance is obtained in the shortest time, which greatly improves efficiency and saves time.
- the volume measurement method for closed water-filled caves of the present invention can quickly and accurately acquire the volume information of the detection space.
- the method strives to obtain the volume in a short time and with high accuracy, and provides a measure for engineering to formulate relevant measures. It is an important reference, a reasonable amount of materials is determined in advance, and the construction of each process is arranged scientifically and reasonably, which has the effect of correctly guiding the construction.
- FIG. 1 is a schematic diagram of a volume measurement method for a closed water-filled cave according to the present invention
- FIG. 2 is a front view of an underwater portion of the present invention
- Figure 3 is a side view of an underwater portion of the present invention.
- a volume measurement system for a closed water-filled karst cave includes a water collecting device 2, a concentration tester 3, and a control system 5.
- the control system 5 is connected to the water collecting device 2 through a connection member. Connected, the water collecting device 2 is a container with a closed top and an open bottom.
- the top of the water collecting device 2 is a piston, and the piston 7 is connected to a propulsion rod, and the propulsion rod is controlled by
- the system controls its elongation or shortening to realize the forward or backward movement of the piston 7;
- an openable and closable placing table is hinged on the inner wall of the water collecting device, and the placing table 9 is connected by connecting the metal bar 8 to the piston 7, and the piston 7 liter
- the placing table 9 moves upwards, and when the piston 7 is lowered, the placing table 9 moves downwards; the placing table 9 is used for placing chemical substances;
- the concentration tester communicates with the lower part of the water collecting device 2 for Check the concentration of the solution.
- the water collection device 2 and the concentration tester 3 are connected to the control system 5 through a connection member.
- the control system 5 controls the action of the connection member to place the water collection device 2 and the concentration tester 3 in the karst cave to be tested or remove the karst cave to be tested;
- the connection device here can be a lifting device combined with a pulley and a steel wire rope.
- the steel wire rope connects the water collecting device 2 and the concentration tester 3, and the steel wire rope is controlled to lift and lower the water collecting device 2 and the concentration tester 3.
- a chemical substance powder is placed on the placing table 9.
- Step 1 clean the hole for the hole that exposes the water-filled cave; place a protective casing in the hole and fix the casing on the ground;
- Step 2 Connect the console to the water collection device and the concentration tester through the connector; the water collection device and the concentration tester are closely connected, and the container of the concentration tester's test liquid is connected to the inside of the water collection device.
- This design is convenient for collection
- the liquid is directly used for testing; the console is fixed on the ground; the chemical substance powder, water collecting device and concentration tester are inserted into the cavity along the casing; among them, the chemical substance powder falls into the solution cavity with the bottom cover opened;
- Step 3 When the instrument is lowered into the cave and the water is not deep enough to facilitate the extraction of the test liquid, fix the position of the instrument;
- Step 4 Move the propulsion rod downwards through the ground console.
- the bottom cover of the water collecting device connected to the metal bar is moved upwards, and the bottom cover is gradually opened.
- the chemical powder inside the water collecting device falls into the dissolution chamber.
- the chemical substance powder dissolves in the dissolution chamber and gradually diffuses away; in order to make the chemical substance powder be completely introduced into the dissolution chamber, the bottom cover can be shaken by metal bars multiple times; and the placement is guaranteed
- the top surface of the table should be sufficiently smooth.
- Step 5 The water collecting device mainly performs the water supply and drainage process by controlling the up and down movement of the piston, and the piston is actually pulled by the push rod.
- the push rod is mechanically designed and can be accurately operated by the ground console.
- the top of the piston The left and right sides are connected by a connecting metal bar to the bottom cover of the water collecting device.
- the bottom cover is composed of two parts. As the piston moves downward and upward, the bottom cover is opened and closed;
- Step 6 The container for the liquid tested by the concentration tester communicates with the inside of the water collecting device. This container is set near the bottom cover of the water collecting device to ensure that the water can naturally enter the container when the water inside the water collecting device is filled. operating;
- Step 7 After the chemical substance powder is thrown, the piston is located at the bottom of the water collecting device and there is no liquid in the water collecting device. At this time, the push rod can be retracted upwards through the console. At the same time, the connecting metal bar pulls the bottom cover to gradually close and the piston upward The movement filled the device with water. Because the concentration tester is in a connected state with the inside of the device, the test liquid is collected. The liquid in the water collection device is drained and the liquid in the cave is collected again. The concentration of the collected liquid is measured by the concentration tester. Repeat Measure three times and record the values ⁇ 1 , ⁇ 2 , ⁇ 3 in sequence. Take the average value ⁇ of the three measurement results. The mass of the known chemical substance is m. The final volume V of the water-filled cave is calculated by the formula. The calculation formula is as follows:
- Step 8 Complete the survey work and return the equipment to the ground
- the special chemical substance is a special substance that does not react with water or air components. It is easy to put it in water, and it diffuses very quickly in liquids; for example, sodium chloride, sodium chloride
- the corresponding concentration tester can be an instrument for measuring salinity, but it is not limited to a salinity meter, it depends on the substance to be detected. This example can be a conductivity salinity meter to measure the salinity of seawater. This device is simple in principle and easy to operate. It can be used to quickly determine the weight percentage concentration of a salt (sodium chloride) solution.
- the water collecting device at the bottom of the device can freely complete the water supply and drainage.
- the water collecting device is used to extract the water in the cave to facilitate the concentration measurement.
- the opening and closing of the bottom of the water collection device is controlled by the ground.
- the measuring instrument can measure the concentration of the chemical substance on the extracted liquid.
- the concentration tester After the concentration tester's concentration value becomes stable, the concentration tester will automatically record the value and issue a prompt to ensure that the stable concentration of the substance is obtained in the shortest time, which greatly improves the efficiency and saves time.
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- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
Description
Claims (6)
- 针对封闭充水溶洞的体积测量***,其特征在于,包括集水装置、浓度测试仪和控制***,所述的控制***通过连接件与集水装置相连,所述的集水装置为一个顶部封闭,底部敞口的容器,所述的集水装置的顶部为一个活塞,所述的活塞连接一个推进杆,所述的推进杆由控制***控制其伸长或者缩短,实现活塞的前进或者后退;在所述集水装置内壁铰接一个可开合的放置台,所述的放置台与所述的活塞相连,所述的活塞升高时,放置台向上运动,活塞降低时,放置台向下运动;所述的放置台上用于放置化学物质;所述的浓度测试仪与集水装置的下部连通,用于检测溶液的浓度。
- 如权利要求1所述的针对封闭充水溶洞的体积测量***,其特征在于,所述的控制***通过控制连接件的动作,将集水装置和浓度测试仪放置于待测溶洞中或者取出待测溶洞。
- 如权利要求1所述的针对封闭充水溶洞的体积测量***,其特征在于,在所述的放置台上用于放置有化学物质,化学物质随放置台打开而掉落溶腔内。
- 利用权利要求1-3任一所述的装置对封闭充水溶洞的体积进行测量的方法,其特征在于,包括以下步骤:步骤1对揭露充水溶洞的钻孔进行清孔工作;在钻孔中下好保护套管,并在地面固定套管;步骤2将控制台通过连接件连接集水装置和浓度测试仪;在集水装置内的放置台上放置化学物质粉末;将控制台固定在地面上;将集水装置和浓度测试仪顺着套管伸入溶洞内部;步骤3当仪器下放到溶洞中并被水没过一定深度方便提取测试液体时,将仪器位置固定;步骤4通过地面控制台,使推进杆向下运动,活塞也向下运动;此处放置台随着活塞的向下运动,放置台逐渐打开,位于集水装置内部的质量为m的化学物质粉末一同掉落到溶腔内的水体中;经过一段时间的扩散过程,化学物质粉末在溶腔内溶解并逐渐扩散开;步骤5:通过控制***控制活塞向上运动,溶腔内的溶液进入到收集装置中;浓度测试仪测试液体的容器与集水装置内部连通,在集水装置内部充水时,溶液进入浓度测试仪测试液体的容器内,完成提取一次溶液的操作;步骤7:将集水装置中的液体排出,并重新收集溶洞内液体,通过浓度测试仪对收集的液体进行浓度测量,重复测量多次并依次记录数值,取多次测量结果平均值ρ,已知化学物质质量为m,经过公式 计算得到充水溶洞最终体积V;步骤8:完成测量工作,将仪器设备收回至地面。
- 如权利要求4所述的方法,其特征在于,所述的化学物质为一种不与水或者空气中的成分发生反应的物质,将其放入水中时,可以在液体中迅速扩散。
- 如权利要求4所述的方法,其特征在于,所述的浓度测试仪在被测量物质浓度值趋于稳定后,会自动记录该数值并发出提示。
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US17/052,821 US11796370B2 (en) | 2018-09-28 | 2019-04-11 | Volume measurement system and method for closed water-filled karst cave |
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CN201811140265.6 | 2018-09-28 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN114108607A (zh) * | 2021-11-10 | 2022-03-01 | 中国一冶集团有限公司 | 一种穿越溶洞的灌注桩施工方法 |
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CN109000599B (zh) * | 2018-09-28 | 2020-03-31 | 山东大学 | 针对封闭充水溶洞的体积测量***及方法 |
CN112180461B (zh) * | 2020-09-11 | 2021-11-23 | 山东大学 | 一种空洞探测装置、探测方法及液气存储方法 |
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CN114108607A (zh) * | 2021-11-10 | 2022-03-01 | 中国一冶集团有限公司 | 一种穿越溶洞的灌注桩施工方法 |
CN114108607B (zh) * | 2021-11-10 | 2023-07-18 | 中国一冶集团有限公司 | 一种穿越溶洞的灌注桩施工方法 |
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US11796370B2 (en) | 2023-10-24 |
CN109000599A (zh) | 2018-12-14 |
CN109000599B (zh) | 2020-03-31 |
US20210223085A1 (en) | 2021-07-22 |
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