CN109931108B - Monitoring and early warning method for settlement of soil body in composite stratum in pipe jacking construction and observation rod - Google Patents
Monitoring and early warning method for settlement of soil body in composite stratum in pipe jacking construction and observation rod Download PDFInfo
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- CN109931108B CN109931108B CN201910259460.9A CN201910259460A CN109931108B CN 109931108 B CN109931108 B CN 109931108B CN 201910259460 A CN201910259460 A CN 201910259460A CN 109931108 B CN109931108 B CN 109931108B
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Abstract
The invention discloses a monitoring and early warning method for settlement of soil body in a composite stratum in pipe jacking construction and an observation rod, and relates to the technical field of pipe jacking construction. The monitoring and early warning method for the soil body settlement of the pipe jacking construction composite stratum comprises the following steps: drilling a stratum: drilling a hole in each stratum to be detected, driving an observation rod: driving observation rods into the holes drilled in step S1 and ensuring that there is one observation rod per hole, the positioning signal receiver being installed: and a positioning signal receiver matched with the positioning signal sent by the observation rod is arranged on the top pipe master control device. According to the pipe-jacking construction composite stratum soil body settlement monitoring early warning method and the observation rod, through improvement of the hard rod and the limiting device, the position of the hard rod can be well controlled, the phenomenon that a detection mechanism moves downwards under the influence of gravity due to large drilling or loose soil layers is avoided, the detection accuracy is improved, the monitoring scientificity is increased, the monitoring difficulty is reduced, and the use of a user is facilitated.
Description
Technical Field
The invention relates to the technical field of pipe jacking construction, in particular to a monitoring and early warning method for settlement of soil body in a composite stratum in pipe jacking construction and an observation rod.
Background
The pipe jacking construction has the advantages of no need of excavation, land saving, small influence on the surrounding environment, short construction period, good economic benefit and the like, but the soil body settlement caused in the pipe jacking construction is generally monitored manually, is a breakpoint monitoring, can not be monitored well in real time, can not be predicted well, and is different in settlement and damage caused by different soil qualities to a composite stratum, so that the accurate monitoring of the soil body settlement in the composite stratum is very important for predicting danger and taking corresponding measures.
The invention of the prior application number CN201510655013.7 discloses a device and a method for monitoring layered settlement of filled soil.
Although the invention solves some problems, the following problems still exist when in use and need to be solved: in the actual operation process, the position of the detection mechanism is difficult to control well, and the detection mechanism is easy to move downwards under the influence of gravity due to large drill holes or loose soil layers in the detection process, so that the detection accuracy is reduced, the monitoring scientificity is reduced, the monitoring difficulty is increased, and inconvenience is brought to a user.
Therefore, the inventor inherits the abundant experience of design development and actual manufacturing in the related industry for many years, researches and improves the existing structure and deficiency, and provides a composite stratum soil body settlement monitoring and early warning method and an observation rod for pipe-jacking construction so as to achieve the aim of higher practical value.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a monitoring and early warning method for the settlement of a soil body in a composite stratum of pipe jacking construction and an observation rod, which solve the problems that the position of a detection mechanism is difficult to control well in the actual operation process, and the detection mechanism is easy to move downwards under the influence of gravity due to large drill holes or loose soil layers in the detection process.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a monitoring and early warning method for soil body settlement of a pipe jacking construction composite stratum comprises the following steps:
s1, drilling the stratum: a hole is drilled in each formation to be examined.
S2, driving an observation rod: the sight bar is driven into the hole drilled in step S1 and it is ensured that there is one sight bar per hole.
S3, installing a positioning signal receiver: and a positioning signal receiver matched with the positioning signal sent by the observation rod is arranged on the top pipe master control device.
S4, real-time monitoring: the positioning signal receiver receives a positioning signal sent by the observation rod and transmits the positioning signal to the top pipe master control device, the top pipe master control device processes the signal into related data and displays the data through the display, and when any layer of soil body is settled and exceeds preset safety data, the system sends an alarm.
Preferably, in step S1, the horizontal distance between the holes drilled in each formation is no greater than 10 centimeters.
Preferably, in step S4, the related data includes the difference between the position of the observation rod and the settlement variation of different soil layers.
The utility model provides a compound stratum soil body of pipe construction settlement monitoring is with observation pole, includes stereoplasm pole, signal receiver and pipe-jacking total control device, the quantity of stereoplasm pole is three at least, and connects through the patchcord between the stereoplasm pole, the left side at stereoplasm pole top is provided with the location card, the locating signal that the location card sent can be received by signal receiver, signal receiver and pipe-jacking total control device electric connection.
The utility model discloses a flexible cord, including the body of rod, stereoplasm pole, the left side and the positioning card piece fixed connection at body of rod top, the inner chamber of the body of rod is provided with stop device, the bottom of body of rod inner chamber is provided with the loose axle, the both ends of loose axle are all through spring hinge and body of rod swing joint, the surperficial cover of loose axle is equipped with the cylinder, the one end of patchcord runs through the left side and the winding of body of rod bottom and sets up on the cylinder.
The limiting device comprises a limiting plate which is fixedly connected with the rod body through a bolt, the top and the bottom of the limiting plate are both provided with a movable groove, a movable bolt is arranged on the movable groove in a penetrating way and can move in the movable groove, the surface of the movable groove is sleeved with a movable block, the two sides of the movable block are movably connected with connecting rods through spring hinges, one end of the connecting rod, which is far away from the movable block, is movably connected with a limiting frame through a rotating shaft, one side of the limiting frame, which is far away from the connecting rod, penetrates through the inner wall of the rod body and is fixedly connected with a metal drill bit, one side of the limiting frame, which is positioned in the inner cavity of the limiting plate, is provided with a coil block, a guide rod is arranged between the two limit frames in a penetrating way, both ends of the guide rod are fixedly connected with the inner wall of the rod body, the surface cover of guide bar is equipped with guide spring, and guide spring's both ends respectively with two coil piece fixed connection.
Preferably, a buffer sponge is arranged between the positioning clamping piece and the rod body.
Preferably, the included angle between the movable shaft and the horizontal plane is forty-five degrees.
Preferably, the coil blocks generate magnetic fields after being electrified, and the directions of the magnetic fields generated after the two coil blocks are electrified are the same.
(III) advantageous effects
The invention provides a monitoring and early warning method for settlement of soil body in a composite stratum in pipe jacking construction and an observation rod. The method has the following beneficial effects: according to the pipe-jacking construction composite stratum soil body settlement monitoring early warning method and the observation rod, through improvement of the hard rod and the limiting device, the position of the hard rod can be well controlled, the phenomenon that a detection mechanism moves downwards under the influence of gravity due to large drilling or loose soil layers is avoided, the detection accuracy is improved, the monitoring scientificity is increased, the monitoring difficulty is reduced, and the use of a user is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a rigid rod according to the present invention;
fig. 3 is a schematic structural view of the limiting device of the present invention.
In the figure: 1. a rigid rod; 11. a rod body; 12. a movable shaft; 13. a buffer sponge; 14. a drum; 15. a limiting device; 1501. a movable groove; 1502. a metal drill bit; 1503. a movable bolt; 1504. a guide bar; 1505. a connecting rod; 1506. a limiting frame; 1507. a movable block; 1508. a coil block; 1509. a guide spring; 1510. a limiting plate; 2. a flexible wire; 3. positioning the card; 4. a signal receiver; 5. push pipe master control device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a monitoring and early warning method for soil body settlement of a pipe jacking construction composite stratum comprises the following steps:
s1, drilling the stratum: holes are drilled in each formation to be tested (the horizontal distance between the drilled holes in each formation is no more than 10 cm).
S2, driving an observation rod: driving the observation rod into the hole drilled in the step S1, and ensuring that there is one observation rod in each hole, which comprises the following specific processes:
the coil block 1508 is powered on, so that a magnetic field is generated after the coil block 1508 is powered on, the two limit frames 1506 are mutually attracted under the action of the magnetic field, so that the limit frames 1506 are in a non-extended state relative to the rod body 11, the observation rod is inserted into the hole drilled in the step S1, the power supply of the coil block 1508 is cut off, so that the magnetic field force disappears, and the limit frames 1506 are in an extended state relative to the rod body 11 under the action of the guide spring 1509, so that the rod body 11 is fixed relative to the stratum (if the stratum is loosened, rubber leaves which can be coiled into the rod body 11 can be added at the extended part of the limit frames 1506 and can be automatically reset to be opened after being extended).
S3, installing a positioning signal receiver: and a positioning signal receiver matched with the positioning signal sent by the observation rod is arranged on the top pipe master control device.
S4, real-time monitoring: the positioning signal receiver receives a positioning signal sent by the observation rod and transmits the positioning signal to the top pipe master control device, the top pipe master control device processes the signal into related data and displays the related data through the display, and when any layer of soil body is settled to exceed preset safety data, the system sends an alarm (the related data comprises the position of the observation rod and the difference condition of settlement changes of soil layers with different soil qualities).
The utility model provides a compound stratum soil body of push pipe construction settlement monitoring is with observation pole, including stereoplasm pole 1, signal receiver 4 and push pipe total control device 5, the quantity of stereoplasm pole 1 is three at least, and connect through patchcord 2 between the stereoplasm pole 1, the left side at 1 top of stereoplasm pole is provided with locator card 3, be provided with buffering sponge 13 between locator card 3 and the body of rod 11, buffering sponge 13 is used for providing a buffer space to locator card 3, the locating signal that locator card 3 sent can be received by signal receiver 4, signal receiver 4 and 5 electric connection of push pipe total control device.
The limiting device 15 comprises a limiting plate 1510, the limiting plate 1510 is fixedly connected with the rod body 11 through a bolt, the top and the bottom of the limiting plate 1510 are respectively provided with a movable groove 1501, the movable groove 1501 is provided with a movable bolt 1503 in a penetrating manner, the movable bolt 1503 can move in the movable groove 1501, the surface of the movable groove 1501 is sleeved with a movable block 1507, two sides of the movable block 1507 are respectively movably connected with a connecting rod 1505 through a spring hinge, one end of the connecting rod 1505 far away from the movable block 1507 is movably connected with a limiting frame 1506 through a rotating shaft, one side of the limiting frame 1506 far away from the connecting rod 1505 penetrates through the inner wall of the rod body 11 and is fixedly connected with a metal drill bit 1502, one side of the limiting frame 1506, which is positioned in the inner cavity of the limiting plate 1510, is provided with a coil block 1508, the coil 1508 generates a magnetic field after, both ends of guide bar 1504 all with the inner wall fixed connection of the body of rod 11, the surface cover of guide bar 1504 is equipped with guide spring 1509, and guide spring 1509's both ends respectively with two coil piece 1508 fixed connection.
During working, wireless signal positioning is adopted, data can be directly processed by the pipe jacking main control device 5, settlement values of soil layers with different soil qualities are monitored in real time, when the settlement values exceed preset safety data, a system alarms, and the working is suspended.
The push pipe master control device 5 is provided with a signal receiver 4, the data of the push pipe master control device 5 can be directly processed by the push pipe master control device 5, the position of the hard rod 1 can be displayed at any time on line, the position of the hard rod constantly changes along with the settlement of soil bodies, the settlement difference of different soil layers of soil bodies can be displayed, so that the jacking scheme is optimized, the preset safety value of the settlement value is 3.00mm, the settlement value exceeds 3.00mm, an alarm signal is sent out, the whole jacking process sends out 7 alarm signals altogether, after each alarm signal is sent out, the push pipe automatically suspends work, and the work continues after the jacking scheme is reset.
To sum up, the pipe-jacking construction composite stratum soil body settlement monitoring and early warning method and the observation rod can well control the position of the hard rod 1 through the improvement of the hard rod 1 and the limiting device 15, prevent the detection mechanism from moving downwards under the influence of gravity due to large drilling or loose soil layers, improve the detection accuracy, increase the monitoring scientificity, reduce the monitoring difficulty and facilitate the use of a user.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a compound stratum soil body of pipe jacking construction is settled and is monitored and use observation pole which characterized in that: the device comprises at least three hard rods (1), signal receivers (4) and a top pipe master control device (5), wherein the hard rods (1) are connected through flexible wires (2), a positioning card (3) is arranged on the left side of the top of each hard rod (1), positioning signals sent by the positioning cards (3) can be received by the signal receivers (4), and the signal receivers (4) are electrically connected with the top pipe master control device (5);
the hard rod (1) comprises a rod body (11), the left side of the top of the rod body (11) is fixedly connected with the positioning clamping piece (3), a limiting device (15) is arranged in the inner cavity of the rod body (11), a movable shaft (12) is arranged at the bottom of the inner cavity of the rod body (11), two ends of the movable shaft (12) are movably connected with the rod body (11) through spring hinges, a roller (14) is sleeved on the surface of the movable shaft (12), and one end of the flexible wire (2) penetrates through the left side of the bottom of the rod body (11) and is wound on the roller (14);
the limiting device (15) comprises a limiting plate (1510), the limiting plate (1510) is fixedly connected with the rod body (11) through a bolt, a movable groove (1501) is formed in the top and the bottom of the limiting plate (1510), the movable groove (1501) is provided with a movable bolt (1503) in a penetrating mode, the movable bolt (1503) can move in the movable groove (1501), a movable block (1507) is sleeved on the surface of the movable groove (1501), connecting rods (1505) are movably connected to the two sides of the movable block (1507) through spring hinges, a limiting frame (1506) is movably connected to one end, away from the movable block (1507), of each connecting rod (1505) through a rotating shaft, one side, away from the connecting rod (1505), of each limiting frame (1506) penetrates through the inner wall of the rod body (11) and is fixedly connected with a metal drill bit (1502), and a coil block (1508) is arranged on one side, located in the inner cavity of, and run through between two spacing frames (1506) and be provided with guide bar (1504), the both ends of guide bar (1504) all with the inner wall fixed connection of the body of rod (11), the surface cover of guide bar (1504) is equipped with guide spring (1509), and the both ends of guide spring (1509) respectively with two coil piece (1508) fixed connection.
2. The observation rod for monitoring settlement of soil body in a pipe jacking construction composite stratum according to claim 1, characterized in that: a buffer sponge (13) is arranged between the positioning card (3) and the rod body (11).
3. The observation rod for monitoring settlement of soil body in a pipe jacking construction composite stratum according to claim 1, characterized in that: the included angle between the movable shaft (12) and the horizontal plane is forty-five degrees.
4. The observation rod for monitoring settlement of soil body in a pipe jacking construction composite stratum according to claim 1, characterized in that: the coil blocks (1508) generate magnetic fields after being electrified, and the directions of the magnetic fields generated after the two coil blocks (1508) are electrified are the same.
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| KR100793941B1 (en) * | 2007-04-02 | 2008-01-16 | 주식회사 이제이텍 | Housing-head of apparatus for measuring a preceding subsidence of the front of a tunnel |
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