WO2018054107A1 - 土体分层沉降磁环及土体分层沉降监测装置 - Google Patents

土体分层沉降磁环及土体分层沉降监测装置 Download PDF

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Publication number
WO2018054107A1
WO2018054107A1 PCT/CN2017/089291 CN2017089291W WO2018054107A1 WO 2018054107 A1 WO2018054107 A1 WO 2018054107A1 CN 2017089291 W CN2017089291 W CN 2017089291W WO 2018054107 A1 WO2018054107 A1 WO 2018054107A1
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WO
WIPO (PCT)
Prior art keywords
magnetic ring
annular
soil
sedimentation
soil layered
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Application number
PCT/CN2017/089291
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English (en)
French (fr)
Chinese (zh)
Inventor
程永锋
贺雷
刘华清
刘佳龙
冯自霞
Original Assignee
中国电力科学研究院有限公司
国家电网公司
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Application filed by 中国电力科学研究院有限公司, 国家电网公司 filed Critical 中国电力科学研究院有限公司
Priority to BR112018008365-8A priority Critical patent/BR112018008365B1/pt
Publication of WO2018054107A1 publication Critical patent/WO2018054107A1/zh

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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
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • 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
    • E02D1/08—Investigation of foundation soil in situ after finishing the foundation structure

Definitions

  • Soil layered settlement monitoring is a commonly used monitoring method for measuring vertical displacement of soils. It is widely used for vertical displacement monitoring of strata, tunnels and road construction.
  • the stratified settlement of the soil is usually monitored by a sedimentation measuring instrument.
  • the measuring system of the sedimentation measuring instrument is mainly composed of a probe sensitive to magnetic materials, a scaled scale, an inductance detecting device, and a sedimentation magnetic ring and a sinking pipe buried in the soil layer.
  • the settling pipe is generally made of a flexible plastic pipe, and a settling magnetic ring is set at a certain distance outside the settling pipe, and the sedimentation magnetic ring is driven to simultaneously sink down when the ground layer is settled.
  • an embodiment of the present invention provides a soil layered sedimentation magnetic ring
  • the soil layered sedimentation magnetic ring includes: a magnetic ring body, a snap body and an annular film sleeve
  • the magnetic ring body includes: an inner hollow annular casing and a magnetic body filled in a hollow portion of the annular casing; a first end of the snap body is connected to an outer wall of the annular casing, and the clamping
  • the second end of the body is for engaging with the pre-laying soil;
  • the hollow film sleeve is hollow inside and the hollow portion is filled with a filler having volatile and/or water-soluble, and the surface of the annular film sleeve is opened for a channel for discharging the volatilized and/or dissolved filler;
  • the annular film sleeve is an elastic annular film sleeve, and the annular film sleeve is sleeved on an inner wall of the annular casing;
  • the filler in the soil layered sedimentation magnetic ring, is 2-anthone particles.
  • the engaging portion is disposed at a predetermined angle with the strip.
  • the soil layered sedimentation magnetic ring is formed by embedding an annular film sleeve on the inner wall of the magnetic ring body, and the annular film sleeve is provided with a volatile and/or water-soluble filler, thereby effectively preventing the settlement.
  • the problem of the snap ring of the magnetic ring improves the accuracy of the measurement of the settlement of the soil.
  • the embodiment of the present invention further provides a soil layered settlement monitoring device, the settlement monitoring device comprising: a settling tube and the above-mentioned sinker magnetic ring; wherein the settling magnetic ring can be Slidably sleeved outside the settling tube.
  • the soil layered sedimentation monitoring device further includes: a positioning ring; wherein the positioning ring is sleeved outside the settling tube and placed in the An upper portion of the settling ring; and an outer diameter of the positioning ring is larger than an inner diameter of the annular film sleeve in the settling magnetic ring.
  • the binding mechanism is a paper line, and when the sedimentation magnetic ring is lowered, each of the engaging bodies arranged along the circumferential direction of the sedimentation magnetic ring is bent and bundled together by the paper line, and the sedimentation magnetic ring is lowered.
  • the paper line will break when it encounters water in the borehole, and the binding force to the card body will disappear, so that the card body is in a free state and is engaged in the pre-layed soil.
  • the soil layered sedimentation magnetic ring and the soil layered settlement monitoring device provided by the embodiments of the invention can effectively avoid the problem of the snap ring of the sedimentation magnetic ring, improve the accuracy of the soil settlement measurement, and can also realize the soil. Two-way measurement of vertical displacement of the body.
  • FIG. 1 is a front elevational view showing a layered sedimentation magnetic ring of a soil body according to an embodiment of the present invention
  • FIG. 2 is another front view of a soil layered sedimentation magnetic ring provided by an embodiment of the present invention.
  • FIG. 4 is a schematic view showing a state in which a snap-fit body of a soil layered sedimentation monitoring device is not bounced according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of still another state in which the snap-in body of the soil layered sedimentation monitoring device is not bounced according to an embodiment of the present invention
  • FIG. 6 is a schematic view showing a state in which a filler in an annular film sleeve disappears after the snap-in body of the soil layered sedimentation monitoring device according to the embodiment of the present invention is opened;
  • FIG. 7 is a schematic view showing another state in which the filler in the annular film sleeve disappears after the snap-in body is opened in the soil layered sedimentation monitoring device according to the embodiment of the present invention.
  • 1-magnetic ring body 2-card body, 3-ring film sleeve, 4-position ring, 5-sink tube, 6-bearing table; 11-ring shell, 12-magnetic body; 21-strip Body, 22-snap; 31-filler.
  • FIG. 1 is a front view of a layered sedimentation magnetic ring provided by an embodiment of the present invention.
  • 2 is a front view of the soil layered sedimentation magnetic ring provided by the embodiment of the present invention
  • FIG. 3 is a top view of the soil layered sedimentation magnetic ring provided by the embodiment of the present invention; as shown in FIG. 1 to FIG.
  • the sinker magnetic ring includes: a magnetic ring body 1, a snap body 2 and an annular film sleeve 3.
  • the magnetic ring body 1 may be a hollow annular body.
  • the magnetic ring body 1 includes an inner annular annular casing 11 and a magnetic body 12 filled in a hollow portion of the annular casing 11.
  • the material of the annular casing 11 may be polyvinyl chloride (PVC).
  • the magnetic body 12 may be an artificially magnetized magnet piece or other magnetic materials.
  • the shape of the magnetic body 12 may be a ring shape. Other shapes are also not limited in this embodiment.
  • the shape of the engaging body 2 may be a sheet shape or a strip shape, and the material of the engaging body 2 may be a metal or a metal alloy having a certain rigidity and toughness.
  • the snap body 2 is an alloy spring steel sheet.
  • the first end of the snap body 2 (the left end shown in FIG. 1) is connected to the outer wall of the annular casing 11, and the second end of the snap body 2 (the right end shown in FIG. 1) is used for pre-laying the soil. Card access.
  • the first end of the engaging body 2 may be disposed obliquely upward or obliquely downward along the outer wall of the annular housing 11. In an alternative embodiment, the first end of the engaging body 2 is along the annular housing.
  • the inner portion of the annular membrane sleeve 3 is hollow and the hollow portion is filled with a filler 31 having a volatile and/or water-soluble content, and the surface of the annular membrane sleeve 3 is provided with a hole for discharging the volatilized and/or dissolved filler 31.
  • the annular film sleeve 3 is an elastic annular membrane sleeve.
  • the material of the annular membrane sleeve 3 may be rubber or other elastic materials.
  • the material of the annular membrane sleeve 3 may be selected according to actual conditions. The embodiment does not limit it.
  • the filler 31 may be a 2-ketone ketone particle which is both volatile and water-soluble.
  • the diameter of the 2-anthone ketone particle may be selected according to the specific case, and is not limited in this embodiment.
  • the filler 31 may also be a substance having only volatility or water solubility, and in specific implementation, it may be determined according to actual conditions.
  • the diameter of the hole on the surface of the annular film sleeve 3 is smaller than the outer diameter of the filler 31, and the filler 31 does not leak out of the annular film sleeve 3 while ensuring that the water vapor inside and outside the annular film sleeve 3 can freely enter and exit.
  • the holes for discharging the volatilized and/or dissolved filler 31 are opened on the upper and lower surfaces of the annular film sleeve 3.
  • the settling pipe with the settling magnetic ring needs to be put into the pre-laying soil.
  • a filler such as sand is filled between the borehole and the settling pipe to fix the settling pipe in the borehole, and the settling magnetic ring is placed in the preset position of the pre-layed soil body.
  • the process of the falling magnetic ring is as follows: the annular membrane sleeve 3 filled with the filling is sleeved on the inner wall of the sedimentation magnetic ring, and the inner wall of the annular membrane sleeve 3 is sleeved on the outer wall of the sedimentation tube, the magnetic ring body 1 and the sedimentation tube
  • the close fit allows the magnetic ring body 1 to be placed at a predetermined position of the pre-layed soil, and then the sand is filled between the outer wall of the settling tube and the borehole.
  • the sinker tube is closely fitted to the magnetic ring body 1 Therefore, the sand does not block the magnetic ring body 1 and the settling tube to cause the problem of the retaining ring of the magnetic ring when measuring.
  • the filling material in the annular film sleeve 3 is gradually volatilized and/or dissolved, so that the distance between the magnetic ring body 1 and the settling tube is gradually increased, and the magnetic ring body 1 can be moved along the settling tube.
  • the displacement of the magnetic ring body 1 sliding downward is the displacement of the soil layered settlement.
  • the displacement of the magnetic ring body 1 is calculated, the displacement of the soil layered settlement can be measured.
  • the wall thickness of the filled annular film sleeve 3 is larger than the inner wall of the annular casing 11 and The distance between the outer walls of the settling tube.
  • the annular film sleeve 3 since the annular film sleeve 3 has elasticity, a certain expansion space may be provided, and after filling the filling material 31 in the expansion space, the inner wall of the annular casing 11 and the outer wall of the sinker tube may be more closely connected. Therefore, it is possible to better prevent the sand from being clogged between the inner wall of the annular casing 11 and the outer wall of the settling pipe during the lowering of the sedimentation magnetic ring, thereby causing a snap ring phenomenon of the sedimentation magnetic ring.
  • the engaging body 2 includes: at least two first clips disposed at the upper end of the annular casing, and each of the first clips is disposed along the circumferential direction of the annular casing 11.
  • the first end of the first clip (the end near the annular housing in FIG. 1) is connected to the outer wall of the annular housing 11, and the second end of the first clip (the distance from the annular housing in FIG. 1) One end) is snapped into the pre-laying soil.
  • the number of the first clips is at least two. In a specific implementation, the number of the first clips may be determined according to actual conditions, and the first clips may be evenly distributed along the circumferential direction of the annular housing 11.
  • the first clip can be bundled on the upper part of the settling tube by the bundling mechanism during the lowering of the sinker magnetic ring, that is, the upper end of the annular shell 11 can be fixed on the upper part of the settling tube.
  • the strapping mechanism is loosened, the first clip is freely deployed and snapped into the pre-layed soil, thereby clamping the sedimentation magnetic ring at a preset position in the pre-laying soil.
  • the engaging body 2 may further include: at least two second clips disposed at the lower end of the annular casing 11, each of the second clips being disposed along the circumferential direction of the annular casing 11.
  • a first clip is disposed at an upper end of the annular housing 11. The first end of the first clip is connected to the outer wall of the annular housing 11, and the second end of the first clip is engaged in the pre-laying soil.
  • a second clip is disposed at a lower end of the annular casing, and the first end of the second clip (the lower end of the second casing is close to the end of the annular casing) is connected to the outer wall of the annular casing 11, and the second end of the second clamp (the lower part of FIG.
  • the one end away from the annular casing is snapped into the pre-laying soil.
  • the number of the first clip and the second clip are respectively at least two.
  • the number of the first clip and the second clip can be determined according to actual conditions, and the first clips can be evenly distributed along the circumferential direction of the upper end of the annular housing 11.
  • Each of the second clips may be evenly distributed along the circumferential direction of the lower end of the annular casing 11.
  • the second end of the first clip can be bundled on the upper part of the settling tube by the bundling mechanism during the lowering of the sinking magnetic ring, that is, the annular housing can be
  • the upper end of the 11 is fixed to the upper part of the settling tube;
  • the second end of the second clip can be bound to the lower part of the settling tube by the bundling mechanism, that is, the lower end of the annular casing 11 can be fixed to the lower part of the settling tube, so that the sedimentation magnetic ring is lowered It can be better fixed on the settling tube.
  • angle between the engaging portion 22 and the strip 21 can be determined according to actual conditions, and the embodiment does not limit it.
  • the annular housing 11 is fixed on the sinker tube; on the other hand, The annular housing 11 is fixed at a predetermined position of the soil.
  • FIG. 4 is a card body in a soil layered sedimentation monitoring device according to an embodiment of the present invention.
  • FIG. 5 Schematic diagram of the state of the unbounced state
  • FIG. 5 is a stratified sedimentation supervision of the soil provided by the embodiment of the present invention
  • Another state diagram of the snap-in body in the measuring device is not popped; as shown in FIG. 4 and FIG. 5, the soil layered sedimentation monitoring device comprises: a settling tube 5 and any of the above-mentioned sinking magnetic rings.
  • the sinker magnetic ring refer to the above description, which is not described herein again.
  • the sinker magnetic ring is slidably sleeved outside the settling tube 5.
  • a plurality of sinker magnet rings may be sleeved outside the settling tube 5, and the settlement displacement of each stratum in the soil body may be determined according to the displacement of each sinking magnetic ring along the outside of the settling tube 5.
  • the settling tube 5 can be sleeved by a plurality of pipe segments, and the material of the settling pipe 5 can be plastic or other materials.
  • FIG. 6 is a schematic view showing a state in which the filler in the annular film sleeve disappears after the snap-in body is opened in the soil layered sedimentation monitoring device according to the embodiment of the present invention
  • FIG. 7 is a layered settlement of the soil body according to the embodiment of the present invention.
  • a cap 6 capable of carrying a settling pipe is built around the settling pipe 5 below the surface of the pre-laying soil.
  • the shape of the cap 6 may be a rectangle, and the cap 6 may be disposed coaxially with the settling pipe 5.
  • the cap 6 is a concrete cap.
  • the cap 6 can fix the settling pipe 5 in the pre-laying soil, so that when the soft soil is present at the bottom of the settling pipe 5, the settling pipe 5 will not settle, so that the pipe of the settling pipe as the reference of the scale is relatively stationary. The accuracy of the measurement results of soil layered settlement displacement is greatly improved.
  • the soil layered sedimentation monitoring device further includes: a positioning ring 4.
  • the positioning ring 4 can be a solid annular body.
  • the positioning ring 4 is sleeved outside the settling tube 5, and the positioning ring 4 is placed above the settling magnetic ring.
  • the positioning ring 4 can be fixed to the outside of the settling tube 5 by screws, and the positioning ring 4 and the sinker magnetic ring are disposed coaxially.
  • the outer diameter of the positioning ring 4 is larger than the inner diameter of the annular film sleeve 3 in the sinker magnetic ring, and the annular film sleeve 3 can be prevented from passing through the positioning ring.
  • the inner diameter of the annular membrane sleeve 3 in the present embodiment refers to the inner diameter of the annular membrane sleeve 3 filled with the filler 31.
  • the bundling mechanism may be loosened before the subsidence magnetic ring reaches the preset position.
  • the first clip and/or the second clip are unfolded in advance in the pre-laying soil, so that during the process of the sinker tube 5 continuing downward, the sinker magnet ring may rise to the settling tube 5 under the resistance of the soil body.
  • the sedimentation magnetic ring cannot be placed at a preset position, and the positioning ring 4 can prevent the sedimentation magnetic ring from sliding upward, so that the sedimentation magnetic ring is placed at a preset position, thereby ensuring measurement accuracy.
  • the annular membrane sleeve 3 of the sedimentation magnetic ring is further used to slidably pass the annular membrane sleeve 3 to the positioning ring 4 after the filler 31 is volatilized and/or dissolved.
  • the inner diameter of the annular film sleeve 3 becomes larger and larger than the outer diameter of the positioning ring 4, and can pass freely through the positioning ring 4.
  • the filler 31 in the annular membrane sleeve 3 gradually volatilizes and/or dissolves, so that the inner diameter of the annular membrane sleeve 3 is larger than the outer diameter of the positioning ring 4.
  • the sedimentation magnetic ring with the annular membrane sleeve 3 can freely pass through the positioning ring 4 with the soil uplift and settlement, and correspondingly, the displacement of the sedimentation magnetic ring through the positioning ring 4 can be regarded as soil.
  • the displacement of the body ridge, the displacement of the subsidence magnetic ring through the positioning ring 4 can be considered as the displacement of the soil settlement.
  • the soil layered sedimentation monitoring device further includes: a bundling mechanism; wherein the bundling mechanism is configured to: when the sinking magnetic ring is lowered, the buckled body in each of the settling magnetic rings after bending The phase is bundled and automatically broken when placed under the settling magnetic ring to a preset position, so that the card body 2 is unfolded and engaged with the pre-laying soil.
  • the binding mechanism may be a paper line.
  • the respective card bodies 2 arranged along the circumferential direction of the sedimentation magnetic ring may be bent and bundled together by a paper line, and settled. During the process of lowering the magnetic ring, the paper line will break when it encounters water in the borehole, and the binding force to the card body 2 will disappear, so that the card body 2 is in a free state and is engaged in the pre-layed soil.
  • the soil layered settlement monitoring device in the embodiment of the invention can effectively avoid the problem of the snap ring of the sedimentation magnetic ring, improve the accuracy of the soil settlement measurement, and can also realize the vertical displacement of the soil. Two-way measurement.
  • an annular film sleeve is embedded in the inner wall of the magnetic ring body, and a volatile and/or water-soluble filler is disposed in the annular film sleeve, thereby effectively avoiding the problem of the snap ring of the sedimentation magnetic ring. , to improve the accuracy of soil displacement measurement.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Soil Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Tents Or Canopies (AREA)
PCT/CN2017/089291 2016-09-20 2017-06-21 土体分层沉降磁环及土体分层沉降监测装置 WO2018054107A1 (zh)

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BR112018008365-8A BR112018008365B1 (pt) 2016-09-20 2017-06-21 Anel magnético de assentamento para monitorar o assentamento de camadas do solo, e dispositivo de monitoramento do assentamento de camadas do solo

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CN201610835672.3A CN106592564B (zh) 2016-09-20 2016-09-20 土体分层沉降磁环及土体分层沉降监测装置
CN201610835672.3 2016-09-20

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CN109357661A (zh) * 2018-11-22 2019-02-19 天津城建大学 一种预钻式土层分层测量仪
CN110207653A (zh) * 2019-06-12 2019-09-06 长江勘测规划设计研究有限责任公司 土体分层沉降和水平位移复合测量装置、系统及方法
CN112484693A (zh) * 2020-11-19 2021-03-12 河南理工大学 一种煤矿采空区地表沉降监测装置
US20220290563A1 (en) * 2021-03-09 2022-09-15 China University Of Mining And Technology Monitoring device and method for dynamic development of overburden mining separated bed
CN115247414A (zh) * 2021-04-28 2022-10-28 深圳大学 一种地基沉降光纤感应测量装置
CN115420255A (zh) * 2022-11-03 2022-12-02 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) 一种埋入式地面沉降监测装置
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CN108487218B (zh) * 2018-04-01 2020-07-28 北京世纪寰亚建筑设计有限公司 建筑工程地基基础沉降监测系统
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CN109931108B (zh) * 2019-04-02 2020-11-24 中国十七冶集团有限公司 一种顶管施工复合地层土体沉降监测预警方法及观测杆
CN112066946B (zh) * 2020-09-24 2022-04-15 李元勋 适用于室内模型试验的单孔分层沉降测量装置及方法
CN115248027B (zh) * 2021-04-28 2023-07-21 深圳大学 一种土体沉降光纤感应监测装置及沉降量测量方法
CN115613540A (zh) * 2022-11-11 2023-01-17 上海勘察设计研究院(集团)有限公司 一种土体分层沉降测试装置及埋设方法

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Publication number Priority date Publication date Assignee Title
CN109357661A (zh) * 2018-11-22 2019-02-19 天津城建大学 一种预钻式土层分层测量仪
CN110207653A (zh) * 2019-06-12 2019-09-06 长江勘测规划设计研究有限责任公司 土体分层沉降和水平位移复合测量装置、系统及方法
CN110207653B (zh) * 2019-06-12 2024-06-11 长江勘测规划设计研究有限责任公司 土体分层沉降和水平位移复合测量装置、系统及方法
CN112484693A (zh) * 2020-11-19 2021-03-12 河南理工大学 一种煤矿采空区地表沉降监测装置
CN112484693B (zh) * 2020-11-19 2022-06-28 河南理工大学 一种煤矿采空区地表沉降监测装置
US20220290563A1 (en) * 2021-03-09 2022-09-15 China University Of Mining And Technology Monitoring device and method for dynamic development of overburden mining separated bed
US11879336B2 (en) * 2021-03-09 2024-01-23 China University Of Mining And Technology Monitoring device and method for dynamic development of overburden mining separated bed
CN115247414A (zh) * 2021-04-28 2022-10-28 深圳大学 一种地基沉降光纤感应测量装置
CN115247414B (zh) * 2021-04-28 2023-07-21 深圳大学 一种地基沉降光纤感应测量装置
CN115420255A (zh) * 2022-11-03 2022-12-02 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) 一种埋入式地面沉降监测装置
CN118050052A (zh) * 2024-04-16 2024-05-17 山东省地质科学研究院 一种沉降水位一体化监测设备
CN118390485A (zh) * 2024-06-28 2024-07-26 贵州交通职业技术学院 一种土木工程地基沉降监测系统

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