CN112049100B - Multi-sphere detection method for foundation settlement - Google Patents
Multi-sphere detection method for foundation settlement Download PDFInfo
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- CN112049100B CN112049100B CN202010911753.3A CN202010911753A CN112049100B CN 112049100 B CN112049100 B CN 112049100B CN 202010911753 A CN202010911753 A CN 202010911753A CN 112049100 B CN112049100 B CN 112049100B
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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
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
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Abstract
The invention discloses a foundation settlement multi-ball point detection method, belonging to the field of foundation settlement detection, and the method comprises the steps of setting a multi-ball point embedded rod, enabling a separation ball nearby to be subjected to a sinking force when foundation settlement occurs, enabling two self-separation hemispheres to be separated from each other, enabling the force of the two self-separation hemispheres acting on a pressure sensor to be reduced, enabling the pressure sensor to transmit a signal to a cloud end, enabling the cloud end to roughly determine whether the foundation settlement occurs and a settled part through cloud computing, detecting whether a pricking rope is stretched and deformed along with gradual increase of foundation settlement conditions, enabling a tip end embedded with a pricking pin to be naked, pricking a fluorescent membrane ball to enable fluorescent liquid to flow out, and judging the severity degree of the foundation settlement according to the fluorescence intensity generated nearby the multi-ball point embedded rod after excavation when the settled part is maintained and the settled part is excavated, and the method is convenient for selecting proper maintenance measures in time, and obviously reduces the potential safety hazard.
Description
Technical Field
The invention relates to the field of foundation settlement detection, in particular to a foundation settlement multi-sphere detection method.
Background
Foundation settlement is mainly due to differences in building loads and uneven foundations, and settlement of parts of foundations or embankments is more or less always uneven, so that additional stress and deformation are generated in the superstructure or pavement structure accordingly. The uneven settlement of the foundation exceeds a certain limit, which can cause the cracking, the deflection and the even damage of the building, such as the cracking of brick walls, the clamping or the sliding of crane wheels, the inclination of high-rise structures, the deflection of machine rotating shafts, the fracture of connecting pipelines with the building, the deviation of bridges from abutments, beam surfaces or road surfaces, and the like. The settlement of the building foundation generated under the long-term load action can be divided into three parts: initial settlement (or instant settlement), primary consolidation settlement (consolidation settlement for short) and secondary consolidation settlement.
Initial settlement is also called instantaneous settlement, and refers to the settlement which occurs when pore water in saturated soft soil is not ready to be discharged at the moment when external load is added, at the moment, the soil body only deforms but does not have the deformation, and the deformation is generally called shear deformation and is calculated according to elastic deformation. The initial settlement caused by applying a load, such as, in particular, temporary or live warehouses, oil tanks, windy high-rise buildings, etc., on a saturated soft clay foundation will be a considerable part of the total settlement and should be estimated.
The main consolidation settlement refers to the settlement generated in the process of continuously removing pore water in foundation soil with the constant external load along with the time after the load acts on the foundation, and the main consolidation settlement part is formed after the pore water pressure caused by the load is completely dissipated when the load is applied. Secondary consolidation settlement can begin before consolidation settlement stabilizes, and is generally calculated to occur when primary consolidation is complete (degree of consolidation reaches 100%).
The secondary consolidation settlement is often much less than the primary consolidation settlement and is largely negligible. However, attention should be paid to the fact that secondary consolidation settlement becomes a major component of the total settlement amount when extremely soft cohesive soil such as silt and mucky soil, particularly when organic matter such as humus is contained, or when a deep high-compressibility soil layer is subjected to a small pressure increase ratio.
After the foundation subsides and takes place, cause very big influence to the stability of building easily, there is great potential safety hazard, but to building whole, the whole coverage of building foundation is great, and its local emergence subsides the back, and difficult in time discovery leads to in time eliminating or avoiding the potential safety hazard, and the danger coefficient is higher.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a foundation settlement multi-ball point detection method, which is characterized in that through the arrangement of a multi-ball point embedded rod, when foundation settlement occurs, a separation ball nearby receives a sinking force, two self-separation hemispheres are separated from each other, so that the force of the two self-separation hemispheres acting on a pressure sensor is reduced, the pressure sensor transmits a signal to a cloud end, the cloud end can roughly determine whether the foundation subsides and the settled part through cloud calculation, and along with the gradual increase of the foundation settlement condition, a detection pricking rope is stretched to deform, so that the tip end of the embedded pricking needle is naked, a fluorescent membrane ball is pierced, so that fluorescent liquid flows out, when the settled part is maintained, after excavation, the severity of the foundation settlement can be judged according to the fluorescence intensity generated nearby the multi-ball point embedded rod, and a proper maintenance measure can be selected in time, the potential safety hazard is obviously reduced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A multi-sphere detection method for foundation settlement comprises the following steps:
s1, reserving a longitudinal detection hole when constructing the foundation;
s2, placing a multi-ball point embedded rod into the detection hole, connecting the multi-ball point embedded rod with the cloud end signal, and burying the multi-ball point embedded rod, and then keeping the upper end of the multi-ball point embedded rod above the surface of the foundation;
s3, pouring and fixing the parts of the multi-ball point embedded rods, which are positioned on the surface of the foundation, through concrete;
s4, when the pressure value of the pressure sensor on the multi-ball point embedded rod is obviously reduced, the foundation settlement phenomenon is indicated;
and S5, excavating the detection hole, wherein the part with the highest fluorescence intensity near the multi-ball point embedded rod is the part with the most serious foundation settlement.
Furthermore, the back is dug to the inspection hole in S1, need carry out the straightness that hangs down and detect, and the straightness deviation that hangs down is no longer than 2 for the inspection hole keeps higher straightness that hangs down, makes the reaction of many bulb embedded pole to the ground subsides more sensitive.
Further, when burying of the multi-ball point embedded rods is carried out in S2, the soil compactness after burying is kept consistent with the foundation compactness, and when foundation settlement occurs, the foundation around the foundation and the whole foundation can be effectively guaranteed to be kept in relatively consistent settlement, so that the accuracy of a detection result is effectively improved.
Further, the pre-buried pole of many balls point includes a plurality of from the ball, a plurality of and from the ball tension bar and the evagination dead lever of fixed connection at the tension bar tip of the top of distributing in the looks, the tension bar with from ball fixed connection.
Further, it includes two respectively with tension bar fixed connection's self-separation hemisphere and installs the pressure sensor in the one end that two self-separation hemispheres are close to each other, and two self-separation hemispheres contact each other, when taking place the ground and subside, some sinking takes place for partial ground, near its ball that separates receives the power of sinking this moment, lead to two self-separation hemispheres alternate segregation for two self-separation hemispheres are each other acted on the force on pressure sensor and are reduced, and pressure sensor gives this signal transmission to the high in the clouds this moment, and the high in the clouds passes through cloud computing, can confirm roughly whether the ground takes place to subside.
Further, two the self-separation hemisphere is magnetic material and makes, and two self-separation hemispheres are opposite from the one end magnetic pole that is close to each other for two self-separation hemispheres can adsorb each other, thereby can produce the extrusion force to pressure sensor, be convenient for when subsiding, because the change of adsorption affinity between the two, and make pressure sensor change, be convenient for judge subsiding of ground according to this change value.
Furthermore, symmetrical special-shaped holes are respectively drilled in the two self-separating hemispheres, a detection thorn rope is fixedly connected between the inner walls of the two special-shaped holes, the special-shaped holes sequentially comprise a liquid outlet section, an extension section and a rope accommodating section, the mouth parts of the two rope containing sections are opposite, the two ends of the detection thorn rope are respectively and fixedly connected with the inner walls of the two liquid outlet sections, when the two self-separating hemispheres are separated, the detection prick rope between the two special-shaped holes is stretched, on one hand, the self-separating hemispheres are effectively ensured to be separated, the multi-ball point embedded rods are mutually in an integral structure and are convenient to recover, on the other hand, the detection prick rope is stretched to deform when the foundation is seriously settled, and can pierce the fluorescent film ball, therefore, the fluorescent liquid in the foundation can flow out, and the severity of foundation settlement can be judged according to the fluorescence intensity generated by the fluorescent liquid near the multi-ball point embedded rod.
Furthermore, the detection thorn rope comprises two deformation thorn sections connected with the liquid outlet section respectively and a folding rope section connected between the two deformation thorn sections, and the folding rope section is located in the rope accommodating section.
Furthermore, a plurality of mutually-contacted fluorescent film balls are placed in the liquid outlet section, the outer end of the deformation pricking section, which is positioned in the liquid outlet section, is fixedly connected with an externally-wrapped isolation ball and an internally-embedded pricking pin, the internally-embedded pricking pin is positioned on the inner side of the externally-wrapped isolation ball, when the two self-separating hemispheres are separated, the folding rope section gradually stretches, when the folding rope section is in a stretched state, the deformation pricking section starts to be stressed and stretched, the stress of the deformation pricking section is increased along with the increasing settlement degree of a foundation, the stress of the deformation pricking section is increased, the externally-wrapped isolation ball is also stretched and deformed at the moment, the thickness of the highest point of the folding rope section is reduced, so that the internally-embedded pricking pin penetrates through the externally-wrapped isolation ball, the tip of the internally-embedded pricking pin is exposed, and can be contacted with the surrounding fluorescent film balls in the deformation process of the deformation pricking section, and the fluorescent liquid in the deformation pricking section can flow out.
Furthermore, the outer-wrapping isolation ball and the deformation thorn section are made of elastic materials, so that the outer-wrapping isolation ball and the deformation thorn section can deform correspondingly under the action of foundation settlement.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme is through the setting of the pre-buried pole of many points, when taking place the ground and subsiding, near its ball that leaves receives sunken power, two self-separation hemisphere alternate segregation, make two self-separation hemispheres effect power on pressure sensor reduce, pressure sensor gives this signal transmission to the high in the clouds this moment, the high in the clouds passes through cloud computing, can roughly confirm whether the ground takes place to subside and the position of subsiding, aggravate gradually along with the ground subsides the condition, it takes place deformation to detect the thorn rope, make the most advanced naked of embedded felting needle, puncture the fluorescent screen ball, make the fluorescent liquid flow, when maintaining the position that subsides to the determination, after the excavation, can judge the severity that the ground subsides according to near the fluorescence intensity that produces of many points pre-buried pole, be convenient for in time select suitable maintenance measures, show reduction potential safety hazard.
(2) After the detection hole is dug well in S1, need carry out the straightness that hangs down and detect, and the straightness deviation that hangs down is no longer than 2 for the detection hole keeps higher straightness that hangs down, makes the pre-buried pole of many ball points more sensitive to the reaction of foundation settlement.
(3) When the multi-ball point embedded rods are buried in the S2, the soil compactness after burying is kept consistent with the foundation compactness, and when the foundation subsides, the foundation around the embedded rods and the whole foundation can be effectively guaranteed to be relatively consistent in subsidence, so that the accuracy of a detection result is effectively improved.
(4) The pre-buried pole of many balls point includes a plurality ofly from the ball, a plurality ofly and from the ball tension bar and the evagination dead lever of fixed connection at the tension bar tip of the top of distributing in the interval, tension bar and from ball fixed connection.
(5) The separation ball comprises two self-separation hemispheres respectively fixedly connected with the tension rod and a pressure sensor arranged at one end of each of the two self-separation hemispheres, the two self-separation hemispheres are in mutual contact, when the foundation subsides, part of the foundation sinks to a certain extent, the separation ball near the separation ball receives the sinking force, two self-separation hemispheres are separated from each other, the force acting on the pressure sensor between the two self-separation hemispheres is reduced, the pressure sensor transmits the signal to the cloud end at the moment, the cloud end is calculated through the cloud end, and whether the foundation subsides can be roughly determined.
(6) Two are magnetic material and make from the separation hemisphere, and two are opposite from the one end magnetic pole that the separation hemisphere is close to each other for two can adsorb each other from the separation hemisphere, thereby can produce the extrusion force to pressure sensor, be convenient for when subsiding, because the change of adsorption affinity between the two, and make pressure sensor change, be convenient for judge subsiding of ground according to this change value.
(7) Two inside special-shaped holes that open respectively of self-separating hemisphere have mutual symmetry, fixedly connected with detection thorn rope between the inner wall in two special-shaped holes, special-shaped hole includes out the liquid section in proper order, extend the section and hold the rope section, and two oral areas that hold the rope section are relative, the both ends that detect thorn rope respectively with two play liquid section inner wall fixed connection, after two self-separating hemisphere separation, the detection thorn rope between two special-shaped holes receives tensile, on the one hand effectively guarantee self-separating hemisphere separation back, many ball point embedded rod are still integrative structure each other, be convenient for retrieve, on the other hand, it subsides when more serious at the ground to detect the thorn rope, receive tensile emergence deformation, can puncture fluorescent film ball, thereby make its inside fluorescence liquid outflow, can judge the severity that the ground subsides according to near the fluorescence intensity that many ball point embedded rod produced.
(8) The detection thorn rope comprises two deformation thorn sections connected with the liquid outlet section and a folding rope section connected between the two deformation thorn sections, and the folding rope section is located in the rope containing section.
(9) A plurality of mutually-contacted fluorescent film balls are placed in the liquid outlet section, the outer end of the deformation pricking section, which is positioned in the liquid outlet section, is fixedly connected with an outer-wrapping isolation ball and an embedded pricking pin, the embedded pricking pin is positioned on the inner side of the outer-wrapping isolation ball, after the two self-separating hemispheres are separated, the folding rope section gradually extends, when the deformation pricking section is in a stretched state, the deformation pricking section begins to be stressed and elongated, the stress of the deformation pricking section is larger and larger along with the increasing settlement degree of a foundation, the stress of the deformation pricking section is larger, the outer-wrapping isolation ball is also stretched and deformed at the moment, so that the thickness of the highest point of the outer-wrapping isolation ball is thinned, the embedded pricking pin penetrates through the outer-wrapping isolation ball, the tip of the embedded pricking pin is exposed at the moment, and can be contacted with the surrounding fluorescent film balls in the deformation pricking section, and the fluorescent liquid in the embedded pricking section can flow out.
(10) The outer-wrapping isolation balls and the deformation thorn sections are made of elastic materials, so that the outer-wrapping isolation balls and the deformation thorn sections can deform correspondingly under the action of foundation settlement.
Drawings
FIG. 1 is a principal flow diagram of the present invention;
FIG. 2 is a schematic structural view of a multi-ball point embedded rod of the present invention;
FIG. 3 is a schematic structural view of an off-sphere cross-section of the present invention;
FIG. 4 is a schematic view of the structure of the shaped hole portion of the present invention;
FIG. 5 is a schematic view of the structure of the lancet embedded portion of the present invention;
FIG. 6 is a schematic view of the exposed tip of the embedded lancet.
The reference numbers in the figures illustrate:
the device comprises a tension rod 11, a convex fixing rod 12, a separating ball 2, a self-separating hemisphere 21, a pressure sensor 22, a liquid outlet section 31, an extension section 32, a rope accommodating section 33, a deformed thorn section 41, a folded rope section 42, a fluorescent film ball 5, an externally-wrapped isolating ball 6 and an internally-embedded thorn 7.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a method for detecting multiple spherical points of foundation settlement includes the following steps:
s1, reserving a longitudinal detection hole when constructing the foundation;
s2, placing a multi-ball point embedded rod into the detection hole, connecting the multi-ball point embedded rod with the cloud end signal, and burying the multi-ball point embedded rod, and then keeping the upper end of the multi-ball point embedded rod above the surface of the foundation;
s3, pouring and fixing the parts of the multi-ball point embedded rods, which are positioned on the surface of the foundation, through concrete;
s4, when the pressure value of the pressure sensor on the multi-ball point embedded rod is obviously reduced, the foundation settlement phenomenon is indicated;
and S5, excavating the detection hole, wherein the part with the highest fluorescence intensity near the multi-ball point embedded rod is the part with the most serious foundation settlement.
After the detection hole is dug well in S1, perpendicularity detection needs to be carried out, and the perpendicularity deviation does not exceed 2 degrees, so that the detection hole keeps higher perpendicularity, the reaction of the multi-ball point embedded rod to foundation settlement is more sensitive, when the multi-ball point embedded rod is buried in S2, the soil compactness after being buried is consistent with the foundation compactness, when foundation settlement occurs, the foundation around the multi-ball point embedded rod and the whole foundation can be effectively guaranteed to be kept in relatively consistent settlement, and therefore the accuracy of a detection result is effectively improved.
Referring to fig. 2-3, the multi-point pre-buried rod includes a plurality of separated balls 2, a plurality of tension rods 11 distributed at intervals with the separated balls 2, and a protruded fixing rod 12 fixedly connected to an end portion of the uppermost tension rod 11, the tension rods 11 and the separated balls 2 are fixedly connected, the separated balls 2 include two self-separating hemispheres 21 respectively fixedly connected with the tension rods 11, and pressure sensors 22 installed at ends of the two self-separating hemispheres 21 close to each other, and the two self-separating hemispheres 21 are in contact with each other, when a foundation subsides, a portion of the foundation subsides, and the separated balls 2 near the foundation receive a subsidence force, so that the two self-separating hemispheres 21 are separated from each other, so that the force acting on the pressure sensors 22 between the two self-separating hemispheres 21 is reduced, at this time, the pressure sensors 22 transmit the signal to a cloud end, and whether the foundation subsides can be substantially determined through cloud computing, the two self-separating hemispheres 21 are made of magnetic materials, and the magnetic poles of the ends, close to each other, of the two self-separating hemispheres 21 are opposite, so that the two self-separating hemispheres 21 can be adsorbed to each other, extrusion force can be generated on the pressure sensor 22, the pressure sensor 22 is convenient to change due to the change of adsorption force between the two when the pressure sensor is settled, and the settlement of a foundation is convenient to judge according to the change value;
two inside special-shaped holes that open respectively of self-separating hemisphere 21 has mutual symmetry, fixedly connected with detection thorn rope between the inner wall in two special-shaped holes, special-shaped hole includes out liquid section 31 in proper order, extension section 32 and appearance rope section 33, and two oral areas that hold rope section 33 are relative, the both ends that detect thorn rope respectively with two play liquid section 31 inner wall fixed connection, after two self-separating hemisphere 21 separations, detection thorn rope between two special-shaped holes receives tensile, on the one hand effectively guarantee after the self-separating hemisphere 21 separates, many points of earth are buried pole still integrative structure each other, be convenient for retrieve, on the other hand, it subsides when more serious at the ground to detect thorn rope, receive tensile emergence deformation, can puncture fluorescent film ball 5, thereby make its inside fluorescence liquid outflow, can be according to near the fluorescence intensity that many points of earth buried pole produced and judge the severity that the ground subsides, it includes two deformation thorn sections 41 that are connected with out liquid section 31 respectively and connect two deformation thorn sections of pricking 41, the folded rope section 42 is positioned in the rope holding section 33.
Referring to fig. 4-5, a plurality of fluorescent film balls 5 in contact with each other are placed in the liquid outlet section 31, the outer end of the deformation pricking section 41 in the liquid outlet section 31 is fixedly connected with an outer-wrapping isolation ball 6 and an inner-wrapping pricking pin 7, the inner-wrapping pricking pin 7 is located inside the outer-wrapping isolation ball 6, and the outer-wrapping isolation ball 6 and the deformation pricking section 41 are both made of elastic materials, so that the two can be deformed correspondingly under the action of foundation settlement; after the two self-separating hemispheres 21 are separated, the folded rope section 42 gradually extends, when the folded rope section is in a stretched state, the deformed barbed section 41 starts to be stressed and elongated, and along with the increasing degree of foundation settlement, please refer to fig. 6, the more the stress of the deformed barbed section 41 is, the outer-coated isolation ball 6 outside the deformed barbed section is stretched and deformed, so that the thickness of the highest point of the deformed barbed section is reduced, the embedded barbed needle 7 penetrates through the outer-coated isolation ball 6, the tip of the embedded barbed needle 7 is exposed, and the deformed barbed section 41 can be in contact with the surrounding fluorescent film ball 5 in the deformation process, so that the fluorescent liquid inside the deformed barbed section flows out.
Through the setting of pre-buried pole of many points, when taking place the ground and subsiding, near its ball 2 that leaves receives the power of sinking, lead to two self-separation hemisphere 21 alternate segregation, make two self-separation hemisphere 21 act on the high in the clouds each other and reduce, pressure sensor 22 gives the high in the clouds with this signal transmission this moment, the high in the clouds passes through cloud computing, can roughly confirm whether the ground takes place to subside and the position that subsides, aggravate gradually along with the ground subsides the condition, it receives tensile deformation to detect the thorn rope, make, can puncture fluorescent film ball 5, thereby make its inside fluorescence liquid flow out, when maintaining the position that subsides to the determination, after the excavation, can judge the severity that the ground subsides according to the fluorescence intensity that near the pre-buried pole of many points produced, be convenient for in time select for use suitable maintenance measures, show reduction potential safety hazard.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (1)
1. A foundation settlement multi-sphere detection method is characterized by comprising the following steps: the method comprises the following steps:
s1, reserving a longitudinal detection hole when constructing the foundation;
s2, placing a multi-ball point embedded rod into the detection hole, connecting the multi-ball point embedded rod with the cloud end signal, burying the multi-ball point embedded rod, and keeping the upper end of the multi-ball point embedded rod above the surface of the foundation;
s3, pouring and fixing the parts of the multi-ball point embedded rods, which are positioned on the surface of the foundation, through concrete;
s4, when the pressure value of the pressure sensor on the multi-ball point embedded rod is obviously reduced, the foundation settlement phenomenon is indicated;
s5, excavating the detection hole, wherein the part near the multi-ball point embedded rod with the highest fluorescence intensity is the part with the most serious foundation settlement;
after the detection hole in the S1 is dug, verticality detection is required, and the verticality deviation does not exceed 2 degrees; when the multi-ball point embedded rods are buried in the S2, keeping the soil compactness after burying consistent with the foundation compactness;
the multi-ball-point embedded rod comprises a plurality of separated balls (2), a plurality of tension rods (11) which are distributed at intervals with the separated balls (2), and an outward convex fixed rod (12) which is fixedly connected to the end part of the uppermost tension rod (11), wherein the tension rods (11) are fixedly connected with the separated balls (2); the separation ball (2) comprises two self-separation hemispheres (21) fixedly connected with the tension rod (11) respectively and a pressure sensor (22) arranged at one ends, close to each other, of the two self-separation hemispheres (21), and the two self-separation hemispheres (21) are in contact with each other; the two self-separating hemispheres (21) are made of magnetic materials, and the magnetic poles of the ends, close to each other, of the two self-separating hemispheres (21) are opposite; symmetrical special-shaped holes are respectively drilled in the two self-separating hemispheres (21), a detection thorn rope is fixedly connected between the inner walls of the two special-shaped holes, the special-shaped holes sequentially comprise a liquid outlet section (31), an extension section (32) and a rope accommodating section (33), the mouth parts of the two rope accommodating sections (33) are opposite, and two ends of the detection thorn rope are respectively fixedly connected with the inner walls of the two liquid outlet sections (31); the detection thorn rope comprises two deformation thorn sections (41) which are respectively connected with the liquid outlet section (31) and a folding rope section (42) which is connected between the two deformation thorn sections (41), and the folding rope section (42) is positioned in the rope accommodating section (33); a plurality of mutually contacted fluorescent film balls (5) are placed in the liquid outlet section (31), the outer end of the deformation pricking section (41) in the liquid outlet section (31) is fixedly connected with an outer-wrapping isolation ball (6) and an embedded pricking pin (7), and the embedded pricking pin (7) is positioned on the inner side of the outer-wrapping isolation ball (6); the outer-wrapping isolation ball (6) and the deformation thorn section (41) are both made of elastic materials.
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| CN102995615A (en) * | 2012-12-22 | 2013-03-27 | 上海城建市政工程（集团）有限公司 | Real-time monitoring method for displacement of underground deep-layer soil body |
| CN103953025A (en) * | 2014-05-13 | 2014-07-30 | 水利部交通运输部国家能源局南京水利科学研究院 | Equipment for measuring layered settlement of deep soft soil or blanket and setup method thereof |
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