CN111794206A - Earthen site anchoring and grouting system and anchoring and grouting method thereof - Google Patents
Earthen site anchoring and grouting system and anchoring and grouting method thereof Download PDFInfo
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- CN111794206A CN111794206A CN202010697750.4A CN202010697750A CN111794206A CN 111794206 A CN111794206 A CN 111794206A CN 202010697750 A CN202010697750 A CN 202010697750A CN 111794206 A CN111794206 A CN 111794206A
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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Abstract
The invention discloses an earthen site anchoring grouting system and an anchoring grouting method thereof, and solves the problems of low earthen site anchoring efficiency and poor anchoring effect in the prior art. The flexible vibration grouting device comprises a flexible outer-coated air bag, an air bag assembly is arranged in the flexible outer-coated air bag, a flexible sealing mechanism used for supporting an anchor rod is connected to the center of the air bag assembly, an elastic connecting mechanism used for connecting a vibration grouting mechanism is further arranged on the air bag assembly, and a pressure monitoring device is arranged on the air bag assembly. The whole grouting integrated controller is matched with the inflating mechanism and the grouting mechanism to realize effective vibration of grout in the anchor hole and provide reliable grouting pressure, so that the anchoring quality and efficiency are improved, and the grouting integrated controller has high popularization value.
Description
Technical Field
The invention relates to the technical field of anchoring grouting, in particular to an earthen site anchoring grouting system and an anchoring grouting method thereof.
Background
China arid environment and silk roads are not lack of important representatives of earthen sites along the roads, such as the great wall from the Qin Dynasty to the Ming Dynasty and affiliated buildings, temple sites and ancient castles in different historical periods. Most of the earthen sites are formed by ramming silty soil, silty clay or sandy soil, and because the earthen buildings are fragile and weak, the earthen sites are in the open air environment and are influenced by various natural forces and human activities such as wind erosion, rain erosion, freeze thawing, earthquake and the like for a long time, unstable blocks directly cut by cracks or fissures generally develop in the earthen sites. Therefore, research on an ideal reinforcing method for an unstable block in an earthen site is urgent. The anchoring technology has the characteristics of weak disturbance, strong concealment, high anchoring force and the like, and is widely applied to the field of stability control of the earthen site.
The block body with local instability or instability deformation is connected and fixed on the stable site body through the anchor rod, the overall stability of the site body is improved, and anchor rod grouting is a link which is crucial to stable anchoring quality in order to ensure the anchoring quality of the earthen site. The study of the earthen site anchoring test finds that the anchoring construction method only depends on the self-weight flowing action of slurry for grouting, which often causes the phenomena of large bubbles, honeycombs and pitted surface segregation in grouting, and the slurry lacks effective vibrating action, so that the surrounding of the anchor rod is not uniformly wrapped, the gripping force of the slurry on the anchor rod is insufficient, and the tensile strength and the shear strength of anchoring of the anchor rod are influenced.
Long-term engineering practice and anchoring test research find that reliable grouting pressure and effective vibration are provided for anchoring the earthen site, which is the key for ensuring the quality of anchoring engineering, so that the development of special equipment for anchoring and grouting the earthen site is necessary for conveying grout to the periphery of a rod body under the action of pressure, effectively vibrating the grout, removing air in the grout, ensuring effective bonding among an anchor rod, the grout and an earthen site body, and ensuring the construction quality of anchoring and grouting of the earthen site.
Disclosure of Invention
Aiming at the defects in the background art, the invention provides an earthen site anchoring grouting system and an anchoring grouting method thereof, and solves the problems of low earthen site anchoring efficiency and poor anchoring effect in the prior art.
The technical scheme of the invention is realized as follows: the utility model provides a soil ruins anchor is with slip casting integrated control ware, includes flexible outsourcing air pocket, is equipped with the gasbag subassembly in the flexible outsourcing air pocket, and the central point of gasbag subassembly puts and is connected with the flexible sealing mechanism who is used for supporting the stock, still is equipped with the elastic connection mechanism who is used for connecting the slip casting mechanism that vibrates on the gasbag subassembly, is equipped with pressure monitoring device on the gasbag subassembly.
The airbag assembly comprises a main airbag, a first auxiliary airbag and a second auxiliary airbag, the main airbag is communicated with the second auxiliary airbag, and the first auxiliary airbag is communicated with the second auxiliary airbag; the main support ring is arranged on the inner ring surface of the main air bag, the secondary support ring is arranged on the inner ring surface of the secondary air bag, and the primary support ring is arranged on the inner ring surface of the primary air bag.
The main support ring, the second auxiliary support ring and the first auxiliary support ring are coaxially arranged, an annular cavity is reserved between the first auxiliary support ring and the second auxiliary support ring, an air overflow and slurry overflow port is formed in the upper portion of the annular cavity, a built-in semi-flexible pipe is connected to the air overflow and slurry overflow port, and the built-in semi-flexible pipe penetrates through the main air bag to extend outwards; the outer side wall of the main air bag is provided with a ventilation mounting port; and a lamp strip is arranged inside the main support ring.
The pressure monitoring device comprises a second pressure sensor arranged on the inner ring surface of the second auxiliary support ring and a first pressure sensor arranged on the inner ring surface of the first auxiliary support ring, and the second pressure sensor and the first pressure sensor extend outwards along the built-in semi-flexible pipe through leads; and anti-skid lines are arranged on the outer surface of the flexible outer air bag.
The flexible sealing mechanism comprises a supporting pressing film connected with the airbag module, a second return pressing ring is arranged on the supporting pressing film, one end of the second return pressing ring is connected with the supporting pressing film, the other end of the second return pressing ring is provided with a first return pressing ring, and the first return pressing ring is connected with the second return pressing ring through a return pressure vent pipe.
A second back pressure air bag is arranged on the inner wall of the second back pressure ring, a first back pressure air bag is arranged on the inner wall of the first back pressure ring, and the second back pressure air bag is communicated with the air bag assembly through a vent hose arranged on the supporting pressure film; the first back pressure air bag is communicated with the second back pressure air bag through a back pressure vent pipe; the supporting pressing film is an elastic visual film.
The vibrating grouting mechanism comprises a grouting connecting pipe and a vibrating pipe head, the vibrating pipe head is communicated with the grouting connecting pipe, the grouting connecting pipe penetrates through the elastic connecting mechanism to extend outwards, and the grouting connecting pipe is connected with the elastic connecting mechanism.
The pipe head that vibrates is responsible for and the extension pipe including the semicircle ring type that is linked together, and the semicircle ring type is responsible for and is equipped with first vibrator and second vibrator on the pipe wall of both sides respectively, and the upper portion of extension pipe is equipped with the allies oneself with the spool that supplies the pipeline to pass through.
The elastic connection mechanism comprises a fixed ring sleeve fixedly connected with the flexible sealing mechanism, a flexible telescopic pipe is connected onto the fixed ring sleeve, and a fastening ring used for fixing the vibrating grouting mechanism is arranged at the pipe inlet end of the flexible telescopic pipe.
And a vibrating pipe head of the vibrating grouting mechanism sequentially penetrates through the fastening ring, the flexible telescopic pipe, the fixing ring sleeve and the air bag assembly to extend outwards.
The soil relic anchoring grouting system comprises the grouting integrated controller, wherein an air bag assembly of the grouting integrated controller is connected with a miniature air filling and sucking machine through an air supporting pipe, a vibrating grouting mechanism of the grouting integrated controller is connected with a miniature grouting machine, and a pressure monitoring device of the grouting integrated controller is connected with a pressure acquisition controller.
An anchoring grouting method of the earthen site anchoring grouting system comprises the following steps:
s1: arranging the centering bracket supporting the anchor rod at the bottom of the anchor hole to enable the anchor rod to be positioned on the central axis of the anchor hole; the grouting integrated controller is respectively connected with the micro air charging and sucking machine and the pressure acquisition controller;
s2: opening an air suction switch of the micro air charging and sucking machine, and pumping out gas in the grouting integrated controller to reduce the volume of the grouting integrated controller; then inserting the grouting integrated controller into the anchor hole, and enabling the anchor rod to sequentially penetrate through the flexible sealing mechanism and the air bag assembly; keeping the distance from the foremost end of the anchor rod to the first back pressure air bag of the flexible sealing mechanism at 30-50 cm;
s3: the vibrating grouting mechanism sequentially passes through a fastening ring, a flexible telescopic pipe and a fixed ring sleeve of the elastic connecting mechanism, passes through the grouting integrated controller and is connected with the micro grouting machine;
s4: turning on a strip lamp arranged on a main support ring of the air bag assembly, and conveying the anchor rod, the grouting integrated controller and the vibrating grouting mechanism to a preset position of a placing anchor hole; the gas overflow slurry overflow port and the built-in semi-flexible pipe are positioned at the upper part of the anchor hole, and meanwhile, the vibrating pipe head of the vibrating grouting mechanism is positioned at the lower side of the anchor rod, and the distance between the initial position of the vibrating pipe head and the fastening ring is 1-2 cm;
s5: starting a micro grouting machine, grouting the micro grouting machine between the bottom of the anchor hole and the grouting integrated controller through a vibrating grouting mechanism, and simultaneously starting a vibrator on a vibrating pipe head to perform vibrating grouting;
s6: in the process of vibrating and grouting, when slurry is about to contact with the flexible outer air bag, stopping grouting, fixing the position of the grouting integrated controller through the fixed ventilation supporting tube, starting the micro air inflation and suction machine to inflate the grouting integrated controller, and stopping inflating until the flexible outer air bag is tightly attached to the wall of the anchor hole;
s7: then, continuously starting the micro grouting machine for vibration grouting, simultaneously rotating a grouting connecting pipe of the vibration grouting mechanism left and right to pull back the vibrating pipe head, and keeping the advancing speed of the slurry consistent with the speed of pulling back the vibrating pipe head until the vibrating pipe head returns to the initial position;
s8: when the pressures detected by a first pressure sensor and a second pressure sensor of the pressure monitoring device reach the preset grouting pressure at the same time, stopping grouting; and simultaneously closing the orifice of the built-in semi-flexible pipe to maintain the pressure; observing pressure values acquired by the first pressure sensor and the second pressure sensor displayed on the pressure acquisition controller, wherein the pressure values are within a preset range and can be maintained for a period of time, and then grouting at the section of the anchor hole can be completed;
if the pressure value is reduced to the preset limit value range, further pressure supplementing and grouting are needed; at the moment, the micro grouting machine is started, and the opening of the built-in semi-flexible pipe is opened at the same time to perform short-time grouting; then closing the micro grouting machine and the pipe orifice of the built-in semi-flexible pipe, and stopping grouting; repeating the operation for 2-3 times of pressure-supplementing grouting to finish the grouting in the section;
s9: after grouting of a section of anchor hole is completed, starting a micro air charging and sucking machine to gradually suck out gas in the grouting integrated controller, and pulling out the grouting integrated controller by 30-50 cm from the anchor hole through a ventilation supporting tube; the vibrating pipe heads of the vibrating grouting mechanism are also synchronously pulled outwards for the same distance; if the slurry is left in the overflow slurry overflow port and the built-in semi-flexible pipe, the micro air inflation and suction machine is connected with the built-in semi-flexible pipe to inflate the built-in semi-flexible pipe, so that the residual slurry in the semi-flexible pipe and the overflow slurry overflow port is removed;
s10: repeating the steps S5-S9, and carrying out the next section of grouting;
s11: and if the grouting of the anchor hole is not enough to arrange the grouting integrated controller on the outermost side of the anchor hole, performing manual grouting hole sealing on the anchor hole to fill the residual section of the hole opening and finish the grouting of the whole anchor hole.
The air bag component of the grouting integrated controller prevents slurry from flowing outwards through inflation and sealing of the anchor hole by the flexible outer air bag; the air bag assembly and the flexible outer-wrapped air bag are easy to deform, can be used for tightening the anchor hole walls under different conditions, and are stronger in applicability, better in sealing effect and convenient to operate. The flexible sealing mechanism tightly wraps the anchor rod through inflating and expanding, so that the slurry is prevented from flowing backwards along the anchor rod to overflow, the overall sealing performance of the grouting integrated controller is improved, and the slurry is effectively prevented from leaking outwards. The vibrating tube head with the vibrator realizes simultaneous grouting and vibrating, and effectively reduces or eliminates the defect that air is wrapped in slurry. But 2 vibrators also can be linked with the semi-ring main pipe and vibrate simultaneously, so that a beneficial superposition vibrating effect is generated, and the grouting efficiency is improved. The elastic connecting mechanism realizes the flexible front-back and left-right movement of the vibrating pipe head of the vibrating grouting mechanism and is used for uniformly vibrating the grout. The pressure monitoring device is used for detecting the pressure of the slurry and acquiring data. The whole grouting integrated controller is matched with the inflating mechanism and the grouting mechanism to realize effective vibration of grout in the anchor hole and provide reliable grouting pressure, so that the anchoring quality and efficiency are improved, and the grouting integrated controller has high popularization value.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an anchoring grouting system.
Fig. 2 is a schematic view of the installation of an anchor hole of the grouting integrated controller.
Fig. 3 is a schematic cross-sectional view of a grouting integrated controller.
Fig. 4 is a left side schematic view of the grouting integrated controller.
Fig. 5 is a schematic right view of the integrated grouting controller.
Fig. 6 is a schematic front view of the grouting integrated controller.
Fig. 7 is a schematic view of a tamper tip.
Fig. 8 is a front view of the tamper tip.
Fig. 9 is a right side schematic view of the tamper tip.
Fig. 10 is a left side schematic view of the tamper tip.
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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 2, embodiment 1 is a comprehensive grouting controller for anchoring an earthen site, which includes a flexible outer bag 31, the flexible outer bag is a flexible rubber ring sleeve, and an airbag module is arranged in the flexible outer bag 31, and the airbag module can be inflated and deflated for sealing an anchor hole and preventing grout from flowing outwards. The central point of gasbag subassembly puts and is connected with the flexible sealing mechanism who is used for supporting stock 6, and flexible sealing mechanism wraps up on the stock, prevents that the thick liquid from flowing backwards along the stock and spilling over. The air bag assembly is also provided with an elastic connecting mechanism for connecting the vibrating grouting mechanism 2, and the elastic connecting mechanism realizes the flexible front-back and left-right movement of a vibrating pipe head of the vibrating grouting mechanism and is used for uniformly vibrating the grout. And a pressure monitoring device is arranged on the air bag assembly, and the pressure monitoring device is connected with the background pressure acquisition controller 3 and is used for detecting the pressure of the slurry and acquiring data. The whole grouting integrated controller is matched with the inflating mechanism and the grouting mechanism to realize effective vibration of grout in the anchor hole and provide reliable grouting pressure, and anchoring quality and efficiency are improved.
Further, as shown in fig. 3, the airbag module includes a main airbag 8, a first sub-airbag 12 and a second sub-airbag 10, and the main airbag 8, the first sub-airbag 12 and the second sub-airbag 10 are sequentially and coaxially disposed in a flexible outer bag 31. The main air bag 8 is in contact with and communicated with the second auxiliary air bag 10, and the first auxiliary air bag 12 is communicated with the second auxiliary air bag 10 through a middle vent pipe, namely, the main air bag 8, the first auxiliary air bag 12 and the second auxiliary air bag 10 can be inflated and deflated simultaneously. The main supporting ring 7 is arranged on the inner ring surface of the main air bag 8, the main supporting ring is a semi-rigid or rigid ring sleeve (the strength and the rigidity of the main supporting ring are greater than those of the main air bag), when the inflatable main air bag is in an inflated state, the main air bag expands outwards, the flexible outer packaging air bag is tightly supported on the wall of the anchor hole, and grout is prevented from overflowing between the main air bag and the wall of the anchor hole. Because the main body air bag and the flexible outer bag air bag are easy to deform, the anchor hole wall can be used for supporting tightly under different conditions, the applicability is stronger, the sealing effect is better, and the operation is convenient. The second auxiliary support ring 9 is provided on the inner ring surface of the second auxiliary bag 10, and the first auxiliary support ring 11 is provided on the inner ring surface of the first auxiliary bag 12. The second secondary supporting ring and the first secondary supporting ring are semi-rigid or rigid ring sleeves, and the function and the principle of the second secondary supporting ring and the first secondary supporting ring are the same as those of the main supporting ring. The main body air bag, the first auxiliary air bag and the second auxiliary air bag are all annular cavity type air bags. The body air bag, the first auxiliary air bag and the second auxiliary air bag are arranged, so that the gap between the slurry entering the anchor hole wall and the flexible outer packaging air bag is effectively blocked, and the slurry is effectively prevented from leaking.
Further, as shown in fig. 4, the main support ring 7, the second auxiliary support ring 9 and the first auxiliary support ring 11 are coaxially disposed, and a ring cavity is left between the first auxiliary support ring 11 and the second auxiliary support ring 9, and the width of the ring cavity is equal to the width of the first auxiliary air bag. The upper part of the annular cavity is provided with an air overflow and pulp overflow port 28, the air overflow and pulp overflow port 28 is connected with a built-in semi-flexible pipe 27, the built-in semi-flexible pipe 27 is embedded in the flexible outer bag air bag, and the built-in semi-flexible pipe 27 penetrates through the main air bag 8 to extend outwards; the outer side wall of the main air bag 8 is provided with a ventilation mounting port 25 which is connected with the micro inflation and suction machine 4 through a ventilation supporting tube 29, so that the main air bag, the first auxiliary air bag and the second auxiliary air bag can be inflated and deflated. Be equipped with lamp strip 33 on the inside of main tributary support ring 7, lamp strip 33 is connected with the pressure acquisition controller, and the lamp strip provides the light source, is convenient for observe the inside thick liquid condition of anchor eye through the visual support press mold of elasticity.
Further, the pressure monitoring device comprises a second pressure sensor 14 arranged on the inner ring surface of the second auxiliary supporting ring 9 and a first pressure sensor 13 arranged on the inner ring surface of the first auxiliary supporting ring 11, wherein the second pressure sensor 14 and the first pressure sensor 13 extend outwards along the built-in semi-flexible pipe 27 through conducting wires and are connected with a background controller for collecting time detection and collecting slurry pressure detection; the arrangement of the first pressure sensor 13 and the second pressure sensor 14 and the use of the pressure sensor at the top of the grouting integrated controller 1 effectively realize the measurement of the grouting pressure in the grouting of the anchor hole. The outer surface of the flexible outer air bag 31 is provided with anti-slip lines 32, the anti-slip lines 32 can be V-shaped lines or W-shaped lines, so that effective pressurization of grouting is realized, effective bonding between the grout and the site soil body and between the grout and the anchor rod is realized, and grouting quality is fully guaranteed.
As shown in 5, 6, embodiment 2, a slip casting integrated control ware is used in soil ruins anchor, flexible sealing mechanism includes the support press mold 15 that is connected with the gasbag subassembly, preferably, supports the press mold and is connected with main support ring or main part air pocket fixed or integrated into one piece, supports the press mold and is elastic rubber material membrane, and sets up with the main support ring coaxial line, is equipped with second backpressure ring 17 on the support press mold 15, and the one end of second backpressure ring 17 is connected with support press mold 15, and the other end is equipped with first backpressure ring 21, and first backpressure ring 21 is connected with second backpressure ring 17 through backpressure breather pipe 19, and first backpressure ring 21, backpressure breather pipe 19 set up with second backpressure ring 17 coaxial line, and cooperate with the stock.
Further, be equipped with second back pressure gasbag 18 on the inner wall of second return ring 17, be equipped with first back pressure gasbag 20 on the inner wall of first return ring 21, the rigidity of first return ring, second return ring is greater than first back pressure gasbag and second back pressure gasbag respectively, guarantees that under the gas filled state, first back pressure gasbag and second back pressure gasbag inwards expand, guarantees to hug closely the stock, realizes the sealed to the stock, prevents that the thick liquid from overflowing along the stock. The second back pressure air bag 18 is communicated with the main air bag of the air bag module through an air hose 16 arranged on the supporting pressing film 15, so that the air bag and the main air bag can be synchronously inflated and deflated. The first back pressure air bag 20 is communicated with the second back pressure air bag 18 through a back pressure vent pipe 19, so that the two air bags can be synchronously inflated and deflated. Support press mold 15 is the visual membrane of elasticity, is convenient for observe the inside thick liquid condition of anchor eye.
Further, the vibrating grouting mechanism 2 comprises a grouting connection pipe 201 and a vibrating pipe head 202, the vibrating pipe head 202 is communicated with the grouting connection pipe 201, the grouting connection pipe 201 penetrates through the elastic connection mechanism to extend outwards and is connected with a grouting machine, the grouting connection pipe 201 is fixedly connected with the elastic connection mechanism in a sealing mode, the sealing performance of the grouting connection pipe is guaranteed, the position of the vibrating pipe head is moved by rotating and pulling the grouting connection pipe, and uniform vibration of slurry in an anchor hole is achieved.
Preferably, as shown in fig. 7 to 10, the vibrating tube head 202 includes a semicircular main tube 2a and an extension tube 2d that are communicated with each other, the extension tube 2d is communicated with the grouting connection tube, and grout enters the anchor hole through the grouting connection tube, the extension tube and the semicircular main tube, so as to realize grouting into the anchor hole. The semicircular ring is responsible for the cross section of 2a and is the semicircular ring type, has realized half parcel stock, has effectively saved the anchor eye space for it is more convenient to remove the semicircular ring and be responsible for 2a in the anchor eye. The pipe walls of the two sides of the semicircular main pipe 2a are respectively provided with a first vibrator 2c and a second vibrator 2b, and the upper part of the extension pipe 2d is provided with a pipeline connecting pipe 2e for a pipeline to pass through. The first vibrator 2c and the second vibrator 2b that are equipped with respectively on the pipe wall of semicircle ring type person in charge 2a both sides have realized that the slip casting is vibrated simultaneously, have effectively reduced or eliminated the drawback of wrapping up in the slurry air. And 2 vibrator 2b and 2c can be UNICOM semi-ring type be responsible for 2a and vibrate simultaneously, have produced profitable stack effect of vibrating, have improved slip casting efficiency.
Further, the elastic connection mechanism comprises a fixed ring sleeve 22 fixedly connected with a supporting pressing film of the flexible sealing mechanism, a flexible telescopic pipe 23 is connected to the fixed ring sleeve 22, the flexible telescopic pipe 23 can be a corrugated hose, and a fastening ring 24 for fixing the vibrating grouting mechanism 2 is arranged at the pipe inlet end of the flexible telescopic pipe 23. Preferably, the vibrating pipe head 202 of the vibrating grouting mechanism 2 passes through the fastening ring 24, the flexible telescopic pipe 23, the fixed ring sleeve 22 and the air bag assembly in sequence and extends outwards to be connected with the grouting machine. The arrangement of the flexible telescopic pipe increases the flexibility of the vibrating grouting pipe 2 in the anchor hole.
The other structure is the same as embodiment 2.
Example 3: as shown in fig. 1, an earthen site anchoring grouting system includes a grouting integrated controller 1 described in embodiment 2, and an airbag module of the grouting integrated controller 1 is connected to a micro air-inflator 4 through a vent support tube 29, that is, a main airbag 8 is connected to the micro air-inflator 4 through the vent support tube 29, for inflating the airbag module. The vibrating grouting mechanism 2 of the main grouting integrated controller 1 is connected with the miniature grouting machine 5 through a grouting connecting pipe to realize grouting to an anchor hole, a pressure monitoring device of the grouting integrated controller 1 is connected with the pressure acquisition controller 3, the miniature grouting machine and the miniature air charging and sucking machine are respectively connected with the pressure acquisition controller, and whether the miniature grouting machine and the miniature air charging and sucking machine are started or not is controlled according to pressure data, so that intelligent and accurate pressure vibrating grouting is realized, and the anchoring grouting efficiency and quality are improved. The miniature grouting machine 5 can adopt a miniature screw grouting machine, the application of the miniature screw grouting machine can greatly increase the particle size range of the slurry grouting material, and the slurry large-particle-size material is favorable for generating a slurry stone body with higher strength to bring a better anchoring effect, so that the application of the miniature screw grouting machine increases more choices of grouting materials. The vibrating grouting pipe 2, the pressure collector 3, the miniature air charging and sucking machine 4 and the miniature grouting machine 5 are all miniature equipment, are light in weight, are more suitable for adverse conditions such as bad terrains where earthen sites are located, are simple and convenient to operate and are beneficial to large-area popularization.
Example 4: an anchoring and grouting method of the earthen site anchoring and grouting system according to embodiment 3 includes the following steps:
s1: the centering bracket 30 supporting the anchor rod 6 is disposed at the bottom of the anchor hole 35, preferably, with the anchor rod 6 positioned on the central axis of the anchor hole 35; the grouting integrated controller 1 is respectively connected with a micro air inflation and suction machine 4 and a pressure acquisition controller 3;
s2: opening an air suction switch of the micro air charging and sucking machine 4, pumping out air in the grouting integrated controller 1, and reducing the volume of the grouting integrated controller 1; then inserting the grouting integrated controller 1 into the anchor hole 35 to enable the anchor rod 6 to sequentially penetrate through the flexible sealing mechanism and the air bag assembly; and the distance L from the foremost end of the anchor rod 6 to the first back pressure air bag 20 of the flexible sealing mechanism is kept at 30-50 cm;
s3: a grouting connecting pipe of the vibrating grouting mechanism 2 sequentially passes through a fastening ring 24, a flexible telescopic pipe 23 and a fixed ring sleeve 22 of an elastic connecting mechanism, a vibrating pipe head is positioned below an anchor, the fastening ring is fixedly connected with an extension pipe of the vibrating pipe head, and the grouting connecting pipe passes through a grouting integrated controller 1 and is connected with a micro grouting machine 5; flexible vibration grouting of the anchor hole is realized;
s4: turning on a strip lamp 33 arranged on a main support ring 7 of the air bag assembly, and sending the anchor rod 6, the grouting integrated controller 1 and the vibrating grouting mechanism 2 to a preset position of a placing anchor hole 35; the gas overflow slurry overflow port 28 and the built-in semi-flexible pipe 27 are positioned at the upper part of the anchor hole 35, so that the gas and the slurry are conveniently exhausted, meanwhile, the vibrating pipe head 202 of the vibrating and grouting mechanism 2 is positioned at the lower side of the anchor rod 6, and the initial position of the vibrating pipe head 202 is 1-2 cm away from the fastening ring 24;
s5: starting a micro grouting machine 5, grouting the micro grouting machine 5 between the bottom of the anchor hole and the grouting integrated controller 1 through a vibrating grouting mechanism 2, and simultaneously starting a vibrator on the vibrating pipe head 202 to carry out vibrating grouting;
s6: in the process of vibrating and grouting, when slurry is about to contact the flexible externally-wrapped air bag 31, stopping grouting, fixing the position of the grouting integrated controller 1 through the fixed ventilation supporting tube 29, starting the micro air inflation and suction machine 4 to inflate the grouting integrated controller 1, and stopping inflating until the flexible externally-wrapped air bag 31 is tightly attached to the anchor hole wall 34;
s7: then, the micro grouting machine 5 is continuously started to carry out vibration grouting, the grouting connecting pipe 201 of the vibration grouting mechanism 2 is rotated left and right at the same time, so that the vibration pipe head 202 is pulled back, and the advancing speed of the slurry is kept consistent with the speed of pulling back the vibration pipe head 202 until the vibration pipe head 202 returns to the initial position;
s8: when the pressures detected by the first pressure sensor 13 and the second pressure sensor 14 of the pressure monitoring device reach the preset grouting pressure at the same time, stopping grouting; and simultaneously closing the orifice of the built-in semi-flexible pipe 27 to maintain the pressure; observing pressure values acquired by a first pressure sensor 13 and a second pressure sensor 14 displayed on the pressure acquisition controller 3, wherein the pressure values are within a preset range and can be maintained for a period of time, and then grouting at the section of the anchor hole can be completed;
if the pressure value is reduced to the preset limit value range, further pressure supplementing and grouting are needed; at the moment, the micro grouting machine 5 is started, and the orifice of the built-in semi-flexible pipe 27 is opened simultaneously to perform short-time grouting; then closing the miniature grouting machine 5 and the pipe orifice of the built-in semi-flexible pipe 27, and stopping grouting; repeating the operation for 2-3 times of pressure-supplementing grouting to finish the grouting in the section;
s9: after the grouting of a section of anchor hole is finished, starting the micro air charging and sucking machine 4 to gradually suck out the gas in the grouting integrated controller 1, and pulling out the grouting integrated controller 1 to the outside of the anchor hole by 30-50 cm through the ventilation supporting tube 29; the vibrating pipe head 202 of the vibrating grouting mechanism 2 is also synchronously pulled outwards for the same distance; at this time, if slurry is left in the overflow slurry overflow port 28 and the built-in semi-flexible pipe 27, the micro air-filling and air-sucking machine 4 is connected with the built-in semi-flexible pipe 27 to fill air into the built-in semi-flexible pipe 27, so as to remove the residual slurry in the semi-flexible pipe 27 and the overflow slurry overflow port 28;
s10: repeating the steps S5-S9, and carrying out the next section of grouting;
s11: and if the grouting of the anchor hole is not enough to arrange the grouting integrated controller 1 on the outermost side of the anchor hole, performing manual grouting hole sealing on the anchor hole to fill the residual section of the hole opening and finish the grouting of the whole anchor hole.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an earthen site anchor is with slip casting integrated control ware which characterized in that: including flexible outsourcing air pocket (31), be equipped with the gasbag subassembly in flexible outsourcing air pocket (31), the central point of gasbag subassembly puts and is connected with the flexible sealing mechanism who is used for supporting stock (6), still is equipped with the elastic connection mechanism who is used for connecting vibration slip casting mechanism (2) on the gasbag subassembly, is equipped with pressure monitoring device on the gasbag subassembly.
2. The comprehensive grouting controller for earthen site anchoring according to claim 1, characterized in that: the airbag module comprises a main airbag (8), a first auxiliary airbag (12) and a second auxiliary airbag (10), the main airbag (8) is communicated with the second auxiliary airbag (10), and the first auxiliary airbag (12) is communicated with the second auxiliary airbag (10); the main supporting ring (7) is arranged on the inner ring surface of the main air bag (8), the second auxiliary supporting ring (9) is arranged on the inner ring surface of the second auxiliary air bag (10), and the first auxiliary supporting ring (11) is arranged on the inner ring surface of the first auxiliary air bag (12).
3. The comprehensive grouting controller for earthen site anchoring according to claim 2, characterized in that: the main support ring (7), the second auxiliary support ring (9) and the first auxiliary support ring (11) are coaxially arranged, an annular cavity is reserved between the first auxiliary support ring (11) and the second auxiliary support ring (9), an air overflow and slurry overflow port (28) is formed in the upper portion of the annular cavity, a built-in semi-flexible pipe (27) is connected to the air overflow and slurry overflow port (28), and the built-in semi-flexible pipe (27) penetrates through the main air bag (8) to extend outwards; the outer side wall of the main air bag (8) is provided with a ventilation mounting port (25); and a lamp strip (33) is arranged inside the main supporting ring (7).
4. The comprehensive grouting controller for earthen site anchoring according to claim 3, characterized in that: the pressure monitoring device comprises a second pressure sensor (14) arranged on the inner ring surface of the second auxiliary support ring (9) and a first pressure sensor (13) arranged on the inner ring surface of the first auxiliary support ring (11), and the second pressure sensor (14) and the first pressure sensor (13) extend outwards along the built-in semi-flexible pipe (27) through leads; the outer surface of the flexible outer air bag (31) is provided with anti-skid lines (32).
5. The comprehensive grouting controller for earthen site anchoring according to any one of claims 1 to 4, characterized in that: flexible sealing mechanism includes support press mold (15) that is connected with the gasbag subassembly, supports to be equipped with second return ring (17) on press mold (15), and the one end of second return ring (17) is connected with support press mold (15), and the other end is equipped with first return ring (21), and first return ring (21) are connected with second return ring (17) through return vent pipe (19).
6. The comprehensive grouting controller for earthen site anchoring according to claim 5, characterized in that: a second back pressure air bag (18) is arranged on the inner wall of the second back pressure ring (17), a first back pressure air bag (20) is arranged on the inner wall of the first back pressure ring (21), and the second back pressure air bag (18) is communicated with the air bag assembly through a vent hose (16) arranged on the supporting pressing film (15); the first back pressure air bag (20) is communicated with the second back pressure air bag (18) through a back pressure vent pipe (19); the supporting pressing film (15) is an elastic visual film.
7. The comprehensive grouting controller for earthen site anchoring according to any one of claims 1 to 4 and 6, characterized in that: the vibrating grouting mechanism (2) comprises a grouting connecting pipe (201) and a vibrating pipe head (202), the vibrating pipe head (202) is communicated with the grouting connecting pipe (201), the grouting connecting pipe (201) penetrates through the elastic connecting mechanism to extend outwards, and the grouting connecting pipe (201) is connected with the elastic connecting mechanism; the vibrating pipe head (202) comprises a semicircular main pipe (2 a) and an extension pipe (2 d) which are communicated, a first vibrator (2 c) and a second vibrator (2 b) are respectively arranged on the pipe walls of the two sides of the semicircular main pipe (2 a), and a connecting pipe (2 e) for a pipeline to pass through is arranged on the upper portion of the extension pipe (2 d).
8. The comprehensive grouting controller for earthen site anchoring according to claim 7, characterized in that: the elastic connecting mechanism comprises a fixed ring sleeve (22) fixedly connected with the flexible sealing mechanism, a flexible telescopic pipe (23) is connected onto the fixed ring sleeve (22), and a fastening ring (24) for fixing the vibrating grouting mechanism (2) is arranged at the pipe inlet end of the flexible telescopic pipe (23); and a vibrating pipe head (202) of the vibrating grouting mechanism (2) sequentially penetrates through the fastening ring (24), the flexible telescopic pipe (23), the fixed ring sleeve (22) and the air bag assembly to extend outwards.
9. An earthen site anchor slip casting system which characterized in that: the grouting integrated controller (1) comprises the grouting integrated controller (1) according to any one of claims 1 to 4, 6 and 8, wherein an air bag assembly of the grouting integrated controller (1) is connected with the micro air-inflating and air-breathing machine (4) through an air-vent supporting tube (29), a vibrating grouting mechanism (2) of the grouting integrated controller (1) is connected with the micro grouting machine (5), and a pressure monitoring device of the grouting integrated controller (1) is connected with the pressure acquisition controller (3).
10. An anchoring grouting method of the earthen site anchoring grouting system as claimed in claim 9, characterized in that: the method comprises the following steps:
s1: arranging a centering bracket (30) supporting an anchor rod (6) at the bottom of an anchor hole (35) to enable the anchor rod (6) to be positioned on the central axis of the anchor hole (35); the grouting integrated controller (1) is respectively connected with a micro air inflation and suction machine (4) and a pressure acquisition controller (3);
s2: opening an air suction switch of the micro air charging and sucking machine (4), pumping out gas in the grouting integrated controller (1), and reducing the volume of the grouting integrated controller (1); then inserting the grouting integrated controller (1) into the anchor hole (35) to enable the anchor rod (6) to sequentially penetrate through the flexible sealing mechanism and the air bag assembly; keeping the distance between the foremost end of the anchor rod (6) and a first back pressure air bag (20) of the flexible sealing mechanism within 30-50 cm;
s3: the vibrating grouting mechanism (2) sequentially passes through a fastening ring (24), a flexible telescopic pipe (23) and a fixed ring sleeve (22) of the elastic connecting mechanism, passes through the grouting integrated controller (1) and is connected with the micro grouting machine (5);
s4: opening a strip lamp (33) arranged on a main supporting ring (7) of the air bag assembly, and sending the anchor rod (6), the grouting integrated controller (1) and the vibrating grouting mechanism (2) to a preset position of a placing anchor hole (35); the gas overflow slurry overflow port (28) and the built-in semi-flexible pipe (27) are positioned at the upper part of the anchor hole (35), meanwhile, the vibrating pipe head (202) of the vibrating grouting mechanism (2) is positioned at the lower side of the anchor rod (6), and the distance between the initial position of the vibrating pipe head (202) and the fastening ring (24) is 1-2 cm;
s5: starting a micro grouting machine (5), grouting between the bottom of the anchor hole and the grouting integrated controller (1) by the micro grouting machine (5) through a vibrating grouting mechanism (2), and simultaneously starting a vibrator on a vibrating pipe head (202) to perform vibrating grouting;
s6: in the process of vibrating and grouting, when slurry is about to contact with the flexible outer-wrapped air bag (31), stopping grouting, fixing the position of the grouting integrated controller (1) through the fixed ventilation supporting tube (29), starting the micro air inflation and suction machine (4) to inflate the grouting integrated controller (1), and stopping inflating when the flexible outer-wrapped air bag (31) is tightly attached to the wall (34) of the anchor hole;
s7: then, the micro grouting machine (5) is continuously started to carry out vibration grouting, the grouting connecting pipe (201) of the vibration grouting mechanism (2) is rotated left and right at the same time to pull back the vibrating pipe head (202), and the advancing speed of the slurry is kept consistent with the speed of pulling back the vibrating pipe head (202) until the vibrating pipe head (202) returns to the initial position;
s8: when the pressures detected by a first pressure sensor (13) and a second pressure sensor (14) of the pressure monitoring device reach the preset grouting pressure at the same time, stopping grouting; and simultaneously closing the orifice of the built-in semi-flexible pipe (27) to maintain the pressure; observing pressure values acquired by a first pressure sensor (13) and a second pressure sensor (14) displayed on a pressure acquisition controller (3), wherein the pressure values are within a preset range and can be maintained for a period of time, and then grouting at the section of the anchor hole can be completed;
if the pressure value is reduced to the preset limit value range, further pressure supplementing and grouting are needed; at the moment, the micro grouting machine (5) is started, and the opening of the built-in semi-flexible pipe (27) is opened simultaneously to perform short-time grouting; then closing the micro grouting machine (5) and the pipe orifice of the built-in semi-flexible pipe (27) and stopping grouting; repeating the operation for 2-3 times of pressure-supplementing grouting to finish the grouting in the section;
s9: after the grouting of a section of anchor hole is finished, starting a micro air charging and sucking machine (4) to gradually suck out gas in the grouting integrated controller (1), and pulling out the grouting integrated controller (1) to the outside of the anchor hole by 30-50 cm through a ventilation supporting tube (29); the vibrating pipe head (202) of the vibrating grouting mechanism (2) is also synchronously pulled outwards for the same distance; if slurry is left in the gas overflow slurry overflow port (28) and the built-in semi-flexible pipe (27), the micro air inflation and suction machine (4) is connected with the built-in semi-flexible pipe (27) to inflate the built-in semi-flexible pipe (27), so that the residual slurry in the semi-flexible pipe (27) and the gas overflow slurry overflow port (28) is removed;
s10: repeating the steps S5-S9, and carrying out the next section of grouting;
s11: and if the grouting of the anchor hole is not enough to arrange the grouting integrated controller (1) to the outermost side of the anchor hole, manually grouting and sealing the anchor hole to fill the residual section of the hole opening and finish the grouting of the whole anchor hole.
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Cited By (1)
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Application publication date: 20201020 Assignee: Lanzhou Helong Cultural Heritage Planning and Design Co.,Ltd. Shanxi Branch Assignor: LANZHOU University OF TECHNOLOGY Contract record no.: X2023980038350 Denomination of invention: A anchoring and grouting system for earthen ruins and its anchoring and grouting method Granted publication date: 20210924 License type: Common License Record date: 20230721 |