CN210341868U - In-situ soil body layered settlement monitoring device - Google Patents
In-situ soil body layered settlement monitoring device Download PDFInfo
- Publication number
- CN210341868U CN210341868U CN201920967215.9U CN201920967215U CN210341868U CN 210341868 U CN210341868 U CN 210341868U CN 201920967215 U CN201920967215 U CN 201920967215U CN 210341868 U CN210341868 U CN 210341868U
- Authority
- CN
- China
- Prior art keywords
- measuring
- settlement
- fixing rod
- circular base
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model discloses an in situ soil body layering settlement monitoring device, including setting up circular base and a plurality of settlement monitoring device at the exploratory well top, every settlement monitoring device all includes anchor mechanism, subsides transmission mechanism and settlement measurement mechanism, anchor mechanism includes circular base and a plurality of steel nail, subside transmission mechanism and include measuring line, flexible pipe and pillar, settlement measurement mechanism includes stand, pulley mechanism, dipperstick and counter weight. The utility model relates to a rationally and with low costs, save time, laborsaving, simple to operate realizes the monitoring of soil body deformation of the different degree of depth of normal position soil body, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering tests, especially, relate to a normal position soil body layering settlement monitoring devices.
Background
Layered settlement monitoring of geotechnical foundations is an important content of geotechnical engineering monitoring. The method is commonly used for judging whether the engineering characteristics of each soil layer meet the design requirements or not, and is used as an important basis for controlling the construction progress, judging the stable state of the foundation and evaluating the treatment effect of the foundation. The method mainly comprises the steps of burying a layered mark in an in-situ soil body according to actual engineering requirements, measuring the settlement of the soil body below the layered mark, burying a mark bottom in the soil layer with a measured depth, guiding the settlement change of the soil layer to be measured to the ground through a mark post, and measuring by adopting a leveling elevation measurement method, wherein the method has three problems in specific implementation: (1) the on-site layered settlement marks are multiple, each settlement mark is buried in different drill holes, large distance often exists between the drill holes, and layered settlement data obtained by the settlement marks are difference values of settlement mark settlement data at different positions and cannot reflect continuous layered settlement data in the vertical direction of a certain monitoring point; (2) the scattered embedding of the settlement marks also brings troubles to data acquisition work, and the workload of technicians is large. There is a need to develop an in-situ soil body layered settlement monitoring device and method with reasonable design, accurate and convenient test, time and labor saving and low cost so as to increase the applicability and accuracy of the device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, provide a normal position soil body layering settlement monitoring device, its reasonable in design and with low costs, save time, laborsaving, simple to operate realizes the soil body deformation monitoring of the different degree of depth of normal position soil body, and the practicality is strong.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an in situ soil body layering settlement monitoring devices which characterized in that: comprises a circular base arranged at the top of the exploratory well and a plurality of settlement monitoring devices which are uniformly distributed along the circumferential direction of the circular base and used for monitoring the settlement of different depths of an in-situ soil body, the top of the exploratory well is flush with the earth surface of the in-situ soil body, the plurality of settlement monitoring devices are the same, each settlement monitoring device comprises an anchoring mechanism extending into the exploratory well and inserted into the in-situ soil body, a settlement transfer mechanism connected with the anchoring mechanism and a settlement measuring mechanism connected with the settlement transfer mechanism, the anchoring mechanism comprises a circular base and a plurality of steel nails which are arranged on one side of the circular base and are used for being inserted into the in-situ soil body, the settlement transfer mechanism comprises a measuring rope, a telescopic pipe and a protective pipe, wherein one end of the measuring rope is fixedly connected with the round base; settlement measuring mechanism is including installing stand on circular base, installing at the pulley mechanism that the stand top just supplied the measuring rope to walk around and installing the dipperstick at the stand middle part to and walk around with the measuring rope the other end fixed connection's of pulley mechanism counter weight, the cover is equipped with the sliding block that can follow dipperstick length direction and remove on the dipperstick, be provided with the cantilever on the sliding block, cantilever and the flagging measuring rope fixed connection of nature, a plurality of earth's surface subsides mark of installation on the circular base.
The in-situ soil body layered settlement monitoring device is characterized in that: the anchoring mechanisms in the settlement monitoring devices are respectively anchored in-situ soil layers with different depths, and the vertical distance between circular bases in two adjacent settlement monitoring devices is more than 0.5 m;
the vertical column is provided with a first measuring ruler fixing rod and a second measuring ruler fixing rod which is arranged in parallel with the first measuring ruler fixing rod, two ends of the measuring ruler are respectively installed on the first measuring ruler fixing rod and the second measuring ruler fixing rod, the first measuring ruler fixing rod and the second measuring ruler fixing rod respectively comprise a U-shaped rod body and a pipe clamping block which is arranged at one end of the U-shaped rod body and can be sleeved on the vertical column, a waist-shaped hole is formed in the U-shaped rod body, the U-shaped rod body forms a U-shaped groove for installing the first measuring ruler fixing rod and the second measuring ruler fixing rod, and a locking bolt penetrates through an opening of the pipe clamping block; the bottom of stand is provided with the ring flange base, a plurality of pre-buried bolts that supply the installation of ring flange base along the circumferencial direction equipartition on the circular base.
The in-situ soil body layered settlement monitoring device is characterized in that: pulley mechanism is including setting up the guide bar at the stand top, installing at the first pulley of guide bar one end and installing the second pulley at the guide bar other end, the stand top is provided with the stop gear who supplies the guide bar installation, stop gear is the limiting plate that the symmetry was laid including from top to bottom, the limiting plate includes splint and is located splint middle part and supplies the arc double-layered groove of dress of guide bar clamp, be provided with the fastening bolt mounting hole on the splint, the other end of survey rope is walked around first pulley and second pulley in proper order and is connected with the counter weight.
The in-situ soil body layered settlement monitoring device is characterized in that: a cylindrical joint is arranged on the circular base, a lifting ring screw is arranged on the cylindrical joint, and one end of the measuring rope is fixedly connected with the lifting ring screw through a buckle;
one end of the telescopic pipe is fixedly connected with the cylindrical joint through a first hose clamp, and the other end of the telescopic pipe is fixedly connected with the protective pipe through a second hose clamp.
Compared with the prior art, the utility model has the following advantage:
1. the in-situ soil body layered settlement monitoring device is simple in structure, reasonable in design, simple and convenient to install and arrange, low in investment cost and capable of monitoring the deformation of different depths in the in-situ soil body in a centralized mode, avoiding inconvenience of scattered installation of instruments and data collection in a drilling hole in a traditional method, reducing workload, achieving convenient collection, expanding the application range and improving monitoring precision.
2. The settlement transfer mechanism adopted by the utility model comprises a telescopic pipe, a protective pipe and a measuring rope, wherein a certain space is reserved for soil layer settlement by arranging the telescopic pipe between the protective pipe and the anchoring mechanism, so that the protective pipe is prevented from extruding the anchoring mechanism to influence the measurement precision; the protective pipe is arranged to form a cavity for accommodating the measuring rope, so that friction between the measuring rope and a soil body is avoided, the measuring rope can be ensured to move freely under the driving of the anchoring mechanism, the movement of the anchoring mechanism is transmitted to the settlement measuring mechanism, the settlement is convenient to detect, and the structure is simple.
3. The utility model discloses the measuring rope that adopts and settlement measurement mechanism fixed connection, measuring rope can freely remove under the drive of anchor mechanism, drive the sliding block and reciprocate along the dipperstick to the stratum of the different degree of depth of transmission warp, realized subsiding deformation and gathered and settlement measurement mechanism's spatial separation, can subside the continuous monitoring of deformation process, improved monitoring operation's security and monitoring precision.
4. The anchoring mechanism adopted by the utility model comprises the steel nails and the round base, on one hand, the anchoring mechanism is used for effectively anchoring in different depth positions of the in-situ soil body, is in close contact with the in-situ soil body and generates coordinated deformation, realizes synchronous settlement with the in-situ soil body layer, and has more representative result; on the other hand, the fixing of the anchoring mechanism is reduced for the convenience of installation, and the installation is simple and convenient.
5. The utility model discloses a plurality of settlement monitoring devices independently gather normal position soil body layering deformation, avoided the interference of each other between each layer position deformation, the monitoring result is more accurate, and can reflect the ascending continuous layering settlement data of monitoring point vertical direction.
To sum up, the utility model relates to a rationally and with low costs, save time, laborsaving, simple to operate realizes the monitoring of the soil body deformation of the different degree of depth of normal position soil body, and the practicality is strong.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is the utility model discloses normal position soil body layering settlement monitoring device's schematic structure.
Fig. 2 is the utility model discloses normal position soil body layering settlement monitoring device settlement measuring mechanism's schematic structure.
Fig. 3 is the utility model discloses normal position soil body layering settlement monitoring device anchor mechanism's schematic structure.
Fig. 4 is a schematic structural view of fig. 3 with the bellows removed.
Fig. 5 is the utility model discloses normal position soil body layering settlement monitoring devices stop gear's schematic structure.
Fig. 6 is the utility model discloses the structural schematic of the first measuring tape dead lever of normal position soil body layering settlement monitoring device and second measuring tape dead lever.
Fig. 7 is a top view of fig. 6.
Fig. 8 is the position schematic diagram of the circular base, the measuring rope and the protective pipe of the in-situ soil body layered settlement monitoring device of the utility model.
Description of reference numerals:
1-circular base; 1-2-steel nails; 1-3-cylindrical joint;
1-4-eye screw; 2-1-measuring rope; 2-1-fastener;
2-telescopic pipe; 2-2-1-a first hose clamp; 2-2-2-a second hose clamp;
2-3-protecting the pipe; 3-1-flange base; 3-2-upright column;
3-limiting plate; 3-3-1-splint; 3-3-2-arc clamping groove;
3-4 — a first pulley; 3-5-a second pulley; 3-6-guide bar;
3-7-a first measuring tape fixing rod; 3-7-1-U-shaped rod body; 3-7-2-waist-shaped holes;
3-7-3-locking bolt; 3-7-4-tube clamping block; 3-7-5-U-shaped groove;
3-8-measuring scale; 3-9-a second measuring tape fixing rod;
3-10-extension arm; 3-11-a sliding block; 3-12-counterweight;
4-a circular base; 5, marking the surface settlement; 6, exploratory well;
and 7, embedding the bolts.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the in-situ soil layered settlement monitoring device comprises a circular base 4 arranged at the top of a manhole 6, and a plurality of settlement monitoring devices which are uniformly distributed along the circumferential direction of the circular base 4 and monitor different-depth settlement of in-situ soil, wherein the top of the manhole 6 is flush with the earth surface of the in-situ soil, the settlement monitoring devices are the same, each settlement monitoring device comprises an anchoring mechanism which extends into the manhole 6 and is inserted into the in-situ soil, a settlement transfer mechanism connected with the anchoring mechanism and a settlement measuring mechanism connected with the settlement transfer mechanism, the anchoring mechanism comprises a circular base 1-1 and a plurality of steel nails 1-2 which are arranged at one side of the circular base 1-1 and are used for being inserted into the in-situ soil, and the settlement transfer mechanism comprises a measuring rope 2-1, one end of which is fixedly connected with the circular base 1-1, The telescopic pipe 2-2 is sleeved outside the measuring rope 2-1, the protection pipe 2-3 is connected to the upper end of the telescopic pipe 2-2 and sleeved outside the measuring rope 2-1, and the top end of the protection pipe 2-3 extends out of the top of the circular base 4; the settlement measuring mechanism comprises a stand column 3-2 arranged on a circular base 4, a pulley mechanism arranged on the top end of the stand column 3-2 and used for a measuring rope 2-1 to bypass, a measuring scale 3-8 arranged in the middle of the stand column 3-2, and a counterweight 3-12 fixedly connected with the other end of the pulley mechanism and used for the measuring rope 2-1 to bypass, wherein a sliding block 3-11 capable of moving along the length direction of the measuring scale 3-8 is sleeved on the measuring scale 3-8, an extending arm 3-10 is arranged on the sliding block 3-11, the extending arm 3-10 is fixedly connected with the measuring rope 2-1 which naturally droops, and a plurality of surface settlement marks 5 are arranged on the circular base 4.
As shown in fig. 6 and 7, in the present embodiment, the anchoring mechanisms in a plurality of settlement monitoring devices are respectively anchored in-situ soil layers with different depths, and the vertical distance between the circular bases 1-1 in two adjacent settlement monitoring devices is greater than 0.5 m;
the upright post 3-2 is provided with a first measuring tape fixing rod 3-7 and a second measuring tape fixing rod 3-9 which is arranged in parallel with the first measuring tape fixing rod 3-7, two ends of the measuring tape 3-8 are respectively arranged on the first measuring tape fixing rod 3-7 and the second measuring tape fixing rod 3-9, the first measuring tape fixing rod 3-7 and the second measuring tape fixing rod 3-9 respectively comprise a U-shaped rod body 3-7-1 and a pipe clamping block 3-7-4 which is arranged at one end of the U-shaped rod body 3-7-1 and can be sleeved on the upright post 3-2, the U-shaped rod body 3-7-1 is provided with a waist-shaped hole 3-7-2, the U-shaped rod body 3-7-1 forms a U-shaped groove 3-7-5 for mounting the first measuring tape fixing rod 3-7 and the second measuring tape fixing rod 3-9, and a locking bolt 3-7-3 penetrates through an opening part of the pipe clamping block 3-7-4.
As shown in fig. 8, in this embodiment, the flange base 3-1 is disposed at the bottom end of the upright column 3-2, and a plurality of embedded bolts 7 for mounting the flange base 3-1 are uniformly distributed on the circular base 4 along the circumferential direction.
As shown in fig. 5, in this embodiment, the pulley mechanism includes a guide rod 3-6 disposed at the top of the upright 3-2, a first pulley 3-4 mounted at one end of the guide rod 3-6, and a second pulley 3-5 mounted at the other end of the guide rod 3-6, a limiting mechanism for mounting the guide rod 3-6 is disposed at the top of the upright 3-2, the limiting mechanism includes limiting plates 3-3 symmetrically disposed up and down, the limiting plates 3-3 include a clamping plate 3-3-1 and an arc-shaped clamping groove 3-3-2 located in the middle of the clamping plate 3-3-1 and used for clamping the guide rod 3-6, a fastening bolt mounting hole is disposed on the clamping plate 3-3-1, and the other end of the measuring rope 2-1 sequentially passes through the first pulley 3-4 and the second pulley 3-5 to be connected with a counterweight 3-12.
In the embodiment, a cylindrical joint 1-3 is arranged on the circular base 1-1, a lifting ring screw 1-4 is arranged on the cylindrical joint 1-3, and one end of the measuring rope 2-1 is fixedly connected with the lifting ring screw 1-4 through a buckle 2-1-1;
one end of the extension tube 2-2 is fixedly connected with the cylindrical joint 1-3 through a first hose clamp 2-2-1, and the other end of the extension tube 2-2 is fixedly connected with the protective tube 2-3 through a second hose clamp 2-2-2.
In this embodiment, it should be noted that the center of the extension tube 2-2, the center of the protection tube 2-3, and the center of the measuring line 2-1 located on one side of the first pulley 3-4 are located on the same vertical line.
In this embodiment, in specific implementation, the anchoring mechanism, the sedimentation transfer mechanism and the sedimentation measuring mechanism are detachably connected, and firstly, the sedimentation measuring mechanism is convenient to detach, and the anchoring mechanism and the sedimentation transfer mechanism are convenient to mount on a sedimentation monitoring point; secondly, the monitoring device is adjusted according to monitoring requirements to adapt to monitoring requirements of different depths; thirdly, the vertical state of the measuring rope 2-1 is convenient to adjust, errors caused by the measuring rope 2-1 are avoided, and the testing precision is improved.
In the embodiment, on one hand, the anchoring mechanism is arranged to effectively anchor the in-situ soil body at different depths, and the anchoring mechanism is in close contact with the in-situ soil body and generates coordinated deformation to realize synchronous settlement with the in-situ soil body layer, so that the result is more representative; on the other hand, the fixing of the anchoring mechanism is reduced for the convenience of installation, and the installation is simple and convenient.
In the embodiment, the circular base 1-1 is arranged, firstly, to facilitate the installation of the plurality of steel nails 1-2, and reduce the contact area with the in-situ soil body during installation, thereby facilitating the anchoring of the anchoring mechanism; secondly, the installation of the cylindrical joint 1-3 is facilitated, so that the cylindrical joint is fixedly connected with the measuring rope 2-1; thirdly, the external force is applied to the round base 1-1 for anchoring, so that the stress on the periphery of the round base 1-1 is uniform, and the inner wall of the exploratory well 6 is prevented from being broken when the external force is applied for anchoring.
In the embodiment, the telescopic pipe 2-2 is arranged between the protective pipe 2-3 and the anchoring mechanism, so that a certain deformation is reserved for settlement, and the monitoring precision is prevented from being influenced by extrusion of the protective pipe 2-3 on the anchoring mechanism.
In this embodiment, the protection tube 2-3 is arranged to form a cavity for accommodating the measuring rope 2-1, so as to avoid friction with the soil body and ensure that the measuring rope 2-1 can move freely under the driving of the anchoring mechanism, so that the movement of the anchoring mechanism is transmitted to the settlement measuring mechanism, thereby facilitating the detection of settlement and having a simple structure.
In the embodiment, the measuring rope 2-1 is arranged, and the measuring rope 2-1 is fixedly connected with the settlement measuring mechanism, so that when the measuring rope 2-1 is driven by the anchoring mechanism to move freely, the sliding blocks 3-11 are driven to move up and down along the measuring scale 3-8, thereby realizing the transmission of formation deformation, realizing the spatial separation of settlement deformation and the settlement measuring mechanism, continuously monitoring the settlement deformation process, and improving the safety and the monitoring precision of monitoring work.
In the embodiment, the extension arms 3-10 are arranged, firstly, to be fixedly connected with the extension arms 3-10 in a natural drooping state of the measuring rope 2-1, so that the transmission of the settlement deformation amount is realized; secondly, in order to be connected with the sliding blocks 3-11, the movement of the measuring rope 2-1 is transmitted to the movement of the sliding blocks 3-11, and the sliding blocks 3-11 are driven to move along the length direction of the measuring scale 3-8, so that the settlement measuring value is obtained.
In this embodiment, the counterweight 3-12 is arranged to provide a certain tension to the measuring line 2-1, so that the measuring line 2-1 naturally droops, and the friction between the measuring line 2-1 and the protective tube 2-3 is overcome, so as to transfer the variation of the measuring line 2-1 to the settlement measuring mechanism.
In this embodiment, the first pulley 3-4 and the second pulley 3-5 are arranged to reduce the friction of the measuring line 2-1 and to perform a guiding function during the movement of the measuring line 2-1.
In the embodiment, the top of the upright post 3-2 is provided with a limiting mechanism, and firstly, the limiting mechanism is used for clamping the guide rod 3-6, so that the first pulley 3-4 and the second pulley 3-5 are conveniently arranged at two ends of the guide rod 3-6; secondly, the position of the guide rod 3-6 is adjusted, so that the vertical tangent line of the edge of the first pulley 3-4 close to the protective tube 2-3 coincides with the center of the protective tube 2-3, and the coincidence of the center line of the measuring rope 2-1 in the protective tube 2-3 and the center line of the protective tube 2-3 is ensured.
In the embodiment, the first measuring ruler fixing rod 3-7 and the second measuring ruler fixing rod 3-9 are arranged, firstly, the first measuring ruler fixing rod is used for being installed on the upright post 3-1, and secondly, the second measuring ruler fixing rod is used for installing the measuring ruler 3-8; and the first measuring ruler fixing rod 3-7 and the second measuring ruler fixing rod 3-9 are provided with waist-shaped holes 3-7-2, so that the measuring ruler 3-8 can move along the length direction of the waist-shaped holes 3-7-2, the distance between the measuring ruler 3-8 and the measuring rope 2-1 is adjusted, and the extension arm 3-10 on the measuring ruler 3-8 is conveniently and fixedly connected with the measuring rope 2-1.
Utilize the utility model discloses carry out normal position soil body layering settlement monitoring method, including following step:
step one, installation of a settlement monitoring device:
101, excavating a manhole 6 in a bottom layer of an in-situ soil body to be detected; wherein the top surface of the exploratory well 6 is flush with the earth surface;
102, arranging a plurality of settlement observation points at intervals in the vertical direction along the inner wall of the exploratory well 6; wherein the vertical distance between two adjacent settlement observation points is more than 0.5 m;
103, excavating a circular mounting hole at the settlement observation point, and excavating a circular arc-shaped pipe slot above the circular mounting hole; wherein, the arc-shaped pipe groove is along the vertical direction of the inner wall of the exploratory well 6;
104, filling waterproof materials in the circular arc-shaped pipe grooves to form waterproof areas; wherein, a telescopic pipe gap is arranged between the waterproof area and the round mounting hole;
105, fixedly connecting the anchoring mechanism with the sedimentation transfer mechanism;
106, hoisting the anchoring mechanism to a settlement observation point in the exploratory well 6, installing the anchoring mechanism at the settlement observation point when the anchoring mechanism is stable and does not swing, installing the telescopic pipe 2-2 in the telescopic pipe gap, and pressing the protective pipe 2-3 into the circular arc-shaped pipe groove filled with the waterproof material; pipe clamps are arranged along the length direction of the protective pipes 2-3 at intervals and are inserted into the in-situ soil body to fix the protective pipes 2-3; the steel nail 1-2 of the anchoring mechanism is inserted into an in-situ soil body, the circular base 1-1 is installed in the circular installation hole, and the outer surface of the circular base 1-1 does not exceed the inner side wall of the exploratory well 6;
step 107, repeating the steps 103 to 106 for multiple times, completing installation of a plurality of settlement monitoring devices, and recording a first observation point, a second observation point, an ith observation point and an nth observation point according to the depth of the settlement observation points from small to large, wherein the plurality of settlement monitoring devices are recorded as a first settlement monitoring device, a second settlement monitoring device, an ith settlement monitoring device, a. n is the number of the settlement monitoring devices, i and n are positive integers, i is more than or equal to 1 and less than or equal to n, and n is not less than 3;
step two, backfilling and tamping:
backfilling and tamping from bottom to top in a layered manner along the depth direction of the exploratory well 6 until the backfilling and tamping are flush with the top surface of the exploratory well 6; wherein, waterproof material dry powder is paved in two adjacent backfill layers;
step three, fixing and adjusting a settlement measuring mechanism:
301, mounting a flange plate base 3-1 at the bottom end of an upright post 3-2 on an embedded bolt 7 on a circular base 4, so that the upright post 3-2 and the circular base 4 are vertically arranged;
step 302, opening the limiting plate 3-3, and adjusting the guide rod 3-6 to enable a vertical tangent line of the first pulley 3-4 close to the edge of the protective pipe 2-3 to coincide with the center of the protective pipe 2-3; then, fixing the guide rod 3-6 by fixing the limit plate 3-3;
303, sequentially connecting the extending end of the measuring rope 2-1 with a counterweight 3-12 by winding around a first pulley 3-4 and a second pulley 3-5; wherein, the center line of the inner measuring rope 2-1 of the protective pipe 2-3 is superposed with the center line of the protective pipe 2-3;
304, adjusting the distance between the measuring scale 3-8 and the upright post 3-2 to ensure that the extending arm 3-10 on the measuring scale 3-8 is attached to the naturally drooping measuring rope 2-1; then moving a sliding block 3-11 fixedly connected with the extension arm 3-10 to the middle of the measuring scale 3-8, and fixing the extension arm 3-10 and the measuring rope 2-1 by a buckle;
step four, layered settlement monitoring and data processing:
step 401, installing a plurality of ground subsidence marks 5 on a circular base 4;
step 402, during initial monitoring, obtaining initial scale values of measuring scales 3-8 in a plurality of settlement monitoring devices; and recording the initial scale value of the measuring scale 3-8 in the first settlement monitoring device as L1(0) The initial scale value of the measuring rule 3-8 in the second settlement monitoring device is marked as L2(0) The initial scale value of the measuring rule 3-8 in the ith settlement monitoring device is marked as Li(0) The initial scale value of the measuring rule 3-8 in the nth settlement monitoring device is marked as Ln(0)；
Step 403, observing the initial elevations of a plurality of the surface subsidence marks 5 by using a leveling instrument, and subsiding the q-th surfaceThe initial elevation of the label 5 is denoted as lq(0) (ii) a According to the formula
Obtaining the initial elevation average value l of the earth surfacec(0) (ii) a Wherein p represents the total number of the surface subsidence marks 5, q and p are positive integers, q is more than or equal to 1 and less than or equal to p, and p is not less than 3;
step 404, acquiring scale values of measuring scales 3-8 in the plurality of settlement monitoring devices in the jth measuring period; and recording the scale value of the measuring scale 3-8 in the first settlement monitoring device in the jth measuring period as L1(j) And the scale value of the measuring scale 3-8 in the second settlement monitoring device in the jth measuring period is recorded as L2(j) And the scale value of the measuring scale 3-8 in the ith settlement monitoring device in the jth measuring period is recorded as Li(j) And the scale value of the measuring scale 3-8 in the nth settlement monitoring device in the jth measuring period is recorded as Ln(j) (ii) a Wherein j is more than or equal to 1 and less than or equal to m, j and m are positive integers, m is not less than 3, and m represents the number of measurement periods;
step 405, during the jth measurement period, observing the elevations of the plurality of surface subsidence marks 5 by using a leveling instrument, and recording the elevation of the qth surface subsidence mark 5 during the jth measurement period as lq(j) (ii) a According to the formula
Obtaining the average elevation l of the earth surface at the jth measurement periodz(j) (ii) a According to the formula hd(j)＝lz(j)-lc(0) Obtaining the average value h of the earth surface settlement amount in the jth measurement periodd(j)；
Step 406, according to the formula hi(j)＝|Li(j)-Li(0) Obtaining settlement between the ith observation point and the surface soil layer in the jth measurement period; according to a formula h'i(j)＝hd(j)-hi(j) Obtaining the absolute settlement of the ith observation point in the jth measurement period;
and 406, repeating the step 405 for multiple times to obtain the absolute settlement of the n observation points in the jth measurement period.
In this embodiment, the layered settlement monitoring and the data processing in the fourth step, and then the specific process of obtaining the layered settlement monitoring rate is as follows:
step 501, recording the absolute settlement amount of the ith observation point obtained in m measurement periods as h'i(1)，h′i(2)，...，h′i(j)，...，h′m(j) Fitting to obtain a settlement change curve of the ith observation point by taking the measurement period as an abscissa and the absolute settlement of the ith observation point as an ordinate, and obtaining the settlement change rate of the ith observation point; wherein the measurement period is greater than 7 days;
and 502, repeating the step 501 for multiple times to obtain the sedimentation change rates of the n observation points, and obtaining the maximum sedimentation change rate according to the arrangement from small to large.
In this embodiment, after the monitoring of the stratified settlement and the data processing in step four, the data is processed according to a formula h'i,i+1(j)＝h′i+1(j)-h′i(j) And obtaining the settlement between the ith observation point and the (i + 1) th observation point in the jth measurement period.
In the embodiment, the multiple settlement monitoring devices are arranged at intervals in the vertical direction of the exploratory well 6, the transverse distance is small, and continuous layered settlement data in the vertical direction of monitoring points can be effectively reflected.
In this embodiment, the concrete process of the backfill tamping in the step two is as follows:
step 201, backfilling excavated soil to form a lower filling soil layer, and tamping; wherein the thickness of the lower filling layer is 1 m-1.5 m;
202, paving dry powder of a waterproof material on the surface of the lower filling layer to form a layer of dry powder waterproof layer; wherein, the thickness of the dry powder waterproof layer is 0.05 m-0.1 m;
step 203, repeating the step 201 and the step 202 for multiple times from bottom to top along the depth direction of the exploratory well 6 to form a lower filling layer; wherein, the distance between the surface of the lower filling layer and the top surface of the exploratory well 6 is 2 m-2.5 m;
204, backfilling excavated soil on the surface of the lower soil filling layer to form an upper soil filling layer, and tamping; wherein, the thickness of the upper filling layer is 0.3 m-0.5 m;
step 205, paving dry powder of a waterproof material on the surface of the upper filling layer to form a layer of upper dry powder waterproof layer; wherein, the thickness of the upper dry powder waterproof layer is 0.05 m-0.1 m;
step 206, repeating the step 205 and the step 206 for a plurality of times from bottom to top along the depth direction of the exploratory well 6 to form an upper filling layer; wherein the surface of the upper filling layer is flush with the top surface of the exploratory well 6.
In this embodiment, during the concrete implementation, can deposit data acquisition with dipperstick 3-8 change for the rod-type displacement meter, realize the automatic acquisition of data.
In this embodiment, through burying anchor mechanism underground at a plurality of settlement observation points, and anchor mechanism buries operating process underground simple and convenient, and anchor mechanism's installation rate is fast, through setting up a plurality of anchor mechanisms, realizes the detection to settlement observation point position, satisfies the layered settlement monitoring demand.
In the embodiment, the backfill tamping treatment is carried out in a layering manner from bottom to top along the depth direction of the exploration well, and the waterproof material dry powder is paved in two adjacent backfill layers, so that the direct downward seepage of the surface water along the exploration well is prevented, the accelerated settlement of the in-situ soil body caused by the downward seepage of the water along with the backfill layers is avoided, and the settlement rule of the in-situ soil body under the condition of natural infiltration of the water can be effectively reflected.
To sum up, the utility model relates to a rationally and with low costs, save time, laborsaving, simple to operate realizes the monitoring of the soil body deformation of the different degree of depth of normal position soil body, and the practicality is strong.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (4)
1. The in-situ soil layered settlement monitoring device is characterized by comprising a circular base (4) arranged at the top of a manhole (6) and a plurality of settlement monitoring devices which are uniformly distributed along the circumferential direction of the circular base (4) and used for monitoring different-depth settlement of an in-situ soil, wherein the top of the manhole (6) is flush with the earth surface of the in-situ soil, the settlement monitoring devices are the same, each settlement monitoring device comprises an anchoring mechanism extending into the manhole (6) and inserted into the in-situ soil, a settlement transfer mechanism connected with the anchoring mechanism and a settlement measuring mechanism connected with the settlement transfer mechanism, the anchoring mechanism comprises a circular base (1-1) and a plurality of steel nails (1-2) arranged on one side of the circular base (1-1) and used for being inserted into the in-situ soil, and the settlement transfer mechanism comprises a measuring rope (2-1) with one end fixedly connected with the circular base (1-1), The telescopic pipe (2-2) is sleeved outside the measuring rope (2-1), and the protective pipe (2-3) is connected to the upper end of the telescopic pipe (2-2) and sleeved outside the measuring rope (2-1), and the top end of the protective pipe (2-3) extends out of the top of the round base (4); the settlement measuring mechanism comprises an upright post (3-2) arranged on the circular base (4), a pulley mechanism arranged at the top end of the upright post (3-2) and used for the measuring rope (2-1) to pass around, and a measuring scale (3-8) arranged in the middle of the upright post (3-2), and a counterweight (3-12) fixedly connected with the other end of the pulley mechanism by which the measuring rope (2-1) passes, the measuring scale (3-8) is sleeved with a sliding block (3-11) which can move along the length direction of the measuring scale (3-8), the sliding blocks (3-11) are provided with extending arms (3-10), the extending arms (3-10) are fixedly connected with the measuring ropes (2-1) which naturally droop, and the circular base (4) is provided with a plurality of ground subsidence marks (5).
2. The in-situ soil mass layered settlement monitoring device according to claim 1, wherein: the anchoring mechanisms in the settlement monitoring devices are respectively anchored in-situ soil layers with different depths, and the vertical distance between circular bases (1-1) in two adjacent settlement monitoring devices is more than 0.5 m;
the vertical column (3-2) is provided with a first measuring scale fixing rod (3-7) and a second measuring scale fixing rod (3-9) which is arranged in parallel with the first measuring scale fixing rod (3-7), two ends of the measuring scale (3-8) are respectively installed on the first measuring scale fixing rod (3-7) and the second measuring scale fixing rod (3-9), the first measuring scale fixing rod (3-7) and the second measuring scale fixing rod (3-9) respectively comprise a U-shaped rod body (3-7-1) and a pipe clamping block (3-7-4) which is arranged at one end of the U-shaped rod body (3-7-1) and can be sleeved on the vertical column (3-2), a waist-shaped hole (3-7-2) is formed in the U-shaped rod body (3-7-1), and the first measuring scale fixing rod (3-7) and the second measuring scale fixing rod (3-7) are formed in the U-7-1) A U-shaped groove (3-7-5) is formed in the second measuring ruler fixing rod (3-9), and a locking bolt (3-7-3) penetrates through an opening of the pipe clamping block (3-7-4);
the bottom of the upright post (3-2) is provided with a flange plate base (3-1), and a plurality of embedded bolts (7) for installing the flange plate base (3-1) are uniformly distributed on the circular base (4) along the circumferential direction.
3. The in-situ soil mass layered settlement monitoring device according to claim 1, wherein: the pulley mechanism comprises guide rods (3-6) arranged at the tops of upright columns (3-2), first pulleys (3-4) arranged at one ends of the guide rods (3-6) and second pulleys (3-5) arranged at the other ends of the guide rods (3-6), a limiting mechanism for installing the guide rods (3-6) is arranged at the top of the upright columns (3-2), the limiting mechanism comprises limiting plates (3-3) symmetrically arranged up and down, each limiting plate (3-3) comprises a clamping plate (3-3-1) and an arc-shaped clamping groove (3-3-2) located in the middle of the clamping plate (3-3-1) and used for clamping the guide rods (3-6), fastening bolt mounting holes are formed in the clamping plate (3-3-1), and the other ends of the measuring ropes (2-1) sequentially bypass the first pulleys (3-4) and the second pulleys (3-4) The pulley (3-5) is connected with a counterweight (3-12).
4. The in-situ soil mass layered settlement monitoring device according to claim 1, wherein: a cylindrical joint (1-3) is arranged on the circular base (1-1), a lifting ring screw (1-4) is arranged on the cylindrical joint (1-3), and one end of the measuring rope (2-1) is fixedly connected with the lifting ring screw (1-4) through a buckle (2-1-1);
one end of the telescopic pipe (2-2) is fixedly connected with the cylindrical joint (1-3) through a first hose clamp (2-2-1), and the other end of the telescopic pipe (2-2) is fixedly connected with the protective pipe (2-3) through a second hose clamp (2-2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967215.9U CN210341868U (en) | 2019-06-25 | 2019-06-25 | In-situ soil body layered settlement monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967215.9U CN210341868U (en) | 2019-06-25 | 2019-06-25 | In-situ soil body layered settlement monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210341868U true CN210341868U (en) | 2020-04-17 |
Family
ID=70190563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920967215.9U Active CN210341868U (en) | 2019-06-25 | 2019-06-25 | In-situ soil body layered settlement monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210341868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172959A (en) * | 2019-06-25 | 2019-08-27 | 机械工业勘察设计研究院有限公司 | A kind of original position soil body deep soil settlement survey device and method |
| CN112033358A (en) * | 2020-09-11 | 2020-12-04 | 辽宁工程技术大学 | Mining subsidence area settlement monitoring device |
-
2019
- 2019-06-25 CN CN201920967215.9U patent/CN210341868U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172959A (en) * | 2019-06-25 | 2019-08-27 | 机械工业勘察设计研究院有限公司 | A kind of original position soil body deep soil settlement survey device and method |
| CN110172959B (en) * | 2019-06-25 | 2023-09-05 | 机械工业勘察设计研究院有限公司 | In-situ soil body layered settlement monitoring device and method |
| CN112033358A (en) * | 2020-09-11 | 2020-12-04 | 辽宁工程技术大学 | Mining subsidence area settlement monitoring device |
| CN112033358B (en) * | 2020-09-11 | 2022-03-08 | 辽宁工程技术大学 | Mining subsidence area settlement monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110172959B (en) | In-situ soil body layered settlement monitoring device and method | |
| CN103758084B (en) | A kind of ecological riverway interlocking type building block and construct the construction that protects bank | |
| CN102162234B (en) | Device and method for monitoring surface displacement of rock-soil body in real time | |
| CN210341868U (en) | In-situ soil body layered settlement monitoring device | |
| CN208363066U (en) | A kind of soft soil foundation high roadbed Sand roadbed stability monitoring system | |
| CN115655211A (en) | Surface layer sedimentation, layered sedimentation and water level integrated monitoring device and monitoring method | |
| CN117552483B (en) | Test method for foundation reinforcement influence range of dynamic compaction treatment | |
| CN214883526U (en) | Building foundation settlement monitoring system | |
| CN114279400A (en) | Automatic monitoring device and method for internal settlement and foundation deformation of damming dam | |
| CN114016489A (en) | Datum point fixing device for settlement monitoring | |
| KR100526015B1 (en) | Pledge monitor for cone penetration test | |
| CN115110511A (en) | Automatic monitoring devices is subsided on breakwater shore protection foundation top layer and layering | |
| CN109853507A (en) | A kind of rock side slope inclination measurement system and its construction method for testing pore water pressure | |
| CN202073083U (en) | Real-time monitoring device for surface displacement of rock soil body | |
| CN112197806B (en) | Method for installing equipment for monitoring movement deformation, hydrology and stress of coal mining subsidence area | |
| CN112577464B (en) | Hanging ring pulley type cross-sectional pipe settlement measurement method | |
| CN114894155A (en) | Embankment or port yard filling layered settlement monitoring device and construction method | |
| CN212779195U (en) | Foundation pit settlement monitoring device | |
| CN107860496A (en) | A kind of total length bonds reinforced anchor bolt body of rod surface shear stress method of testing | |
| CN107631823A (en) | A kind of total length bonds reinforced anchor bolt body of rod surface shear stress test device | |
| CN221261769U (en) | Slope sliding early warning device | |
| CN209055104U (en) | A kind of subgrade settlement automated watch-keeping facility | |
| CN111622198B (en) | Sensor embedding device and embedding method thereof | |
| CN218673618U (en) | Automatic monitoring devices of top layer subsides, layering subsides and water level integration | |
| CN217517534U (en) | Automatic monitoring devices is subsided on breakwater shore protection foundation top layer and layering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201209 Address after: 178 Guang'anmenwai street, Xicheng District, Beijing Patentee after: CHINA MACHINERY ENGINEERING Corp. Patentee after: Machinery Industry Survey, Design and Research Institute Co.,Ltd. Address before: 710043 No. 51 middle Xianning Road, Shaanxi, Xi'an Patentee before: Machinery Industry Survey, Design and Research Institute Co.,Ltd. |
|
| TR01 | Transfer of patent right |