CN117431970B - Intelligent supporting device and supporting method for roadbed pit - Google Patents
Intelligent supporting device and supporting method for roadbed pit Download PDFInfo
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- CN117431970B CN117431970B CN202311775188.2A CN202311775188A CN117431970B CN 117431970 B CN117431970 B CN 117431970B CN 202311775188 A CN202311775188 A CN 202311775188A CN 117431970 B CN117431970 B CN 117431970B
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 67
- 238000005728 strengthening Methods 0.000 claims description 35
- 238000004891 communication Methods 0.000 claims description 18
- 238000007711 solidification Methods 0.000 claims description 16
- 230000008023 solidification Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000003673 groundwater Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 27
- 238000010030 laminating Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 7
- 235000011941 Tilia x europaea Nutrition 0.000 description 7
- 239000004571 lime Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000002356 single layer Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 238000006396 nitration reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009545 invasion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009935 nitrosation Effects 0.000 description 1
- 238000007034 nitrosation reaction Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an intelligent supporting device and method for a roadbed pit, and belongs to the field of foundation pit supporting. The intelligent supporting device for the roadbed pit comprises supporting plates, wherein clamping hooks are fixedly connected to two sides of each supporting plate, the clamping hooks on the side walls of two adjacent supporting plates are mutually clamped, a reinforcing groove is formed in each supporting plate, a supporting sleeve is fixedly connected to the inner wall of each reinforcing groove, and a supporting sleeve rod is rotationally connected to each supporting sleeve; according to the invention, the air flow in the piston groove is compressed by the gravity downward pressing of the positioning rod, so that the supporting sleeve rod keeps the outward extending trend, thereby supporting the inner walls of the two sides of the reinforced groove, forming a strong tie bar, effectively improving the supporting strength of the supporting plate, and when the side wall of the supporting plate is pressed, the high-pressure air flow is back-pressed into the piston groove, thereby forming the reaction to the soil pressure, and effectively improving the supporting strength of the supporting plate.
Description
Technical Field
The invention relates to the technical field of foundation pit support, in particular to an intelligent support device and a support method for a roadbed pit.
Background
In the municipal road construction process, roadbed pits are often required to be excavated for operation, and in the process of excavating foundation pits, a mucky soil layer is often encountered, the water content in the mucky soil layer is high, the mobility is high, and landslide, collapse and the like are easy to occur. Therefore, after the excavation of the foundation pit is completed, a supporting structure for reinforcement is often required to be arranged in the foundation pit; stability of the foundation pit is enhanced through the supporting structure, and accordingly reliability of subsequent road construction procedures and safety of constructors are improved.
The utility model provides a roadbed pit supporting device of publication No. "CN116695734A", includes the bottom plate, is provided with first backup pad on the bottom plate, and shown bottom plate one side is connected with the second backup pad, and first backup pad passes through supporting component and connects the second backup pad: the bottom of the bottom plate is provided with a plurality of fixed nail piles, the horizontal plane of the first support plate is perpendicular to the horizontal plane of the bottom plate, and an included angle is formed between the first support plate and the second support plate; the two ends of the supporting component are respectively hinged with the first supporting board and the second supporting board, and the supporting component is provided with a telescopic structure; according to the invention, the bottom plate is vertically connected with the first support plate, so that the first support plate stably provides supporting force for the second support plate through the support assembly, meanwhile, the included angle between the first support plate and the second support plate bracket is adjusted through adjusting the length of the support assembly, the second support plate is attached to the pit wall at an inclined angle, and the bottom plate increases the supporting stability through the fixed nail piles at the bottom.
The prior patent foundation pit has more internal connection structures, and is inconvenient to construct subsequently. Moreover, in the effect to the support of mucky soil layer, the single-layer metal plate is adopted to support the system, the support intensity and the connection tightness of the single-layer plate are insufficient, the pressure effect generated by the side wall of the mucky soil layer is difficult to bear, the water seepage condition is easy to occur to the mucky soil with high moisture content, the transverse pull rod is additionally arranged on the support plane of the single-layer plate in the concrete support process, the whole compressive resistance of the single-layer plate system is improved, the transverse pull rod also has the gravity effect, when the transverse pull rod is arranged more, the large dead weight pull effect is also generated on the single-layer plate, the bending condition of the single-layer plate is easy to occur, the support effect is reduced, and if the solid support plate is used, the increase of the material cost investment is caused, the dead weight of the solid support plate is large, and the difficulty is large when the installation is carried out. Therefore, an intelligent supporting device and a supporting method for the roadbed pit are provided.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the supporting strength and the connection tightness of a single-layer plate are insufficient, the pressure effect generated by the side wall of a mucky soil layer is difficult to bear, and water seepage is easy to occur, and provides an intelligent supporting device and a supporting method for a roadbed pit.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the intelligent supporting device for the roadbed pit comprises supporting plates, clamping hooks are fixedly connected to two sides of each supporting plate, two adjacent supporting plate side walls are clamped with each other, an auxiliary fixing plate is fixedly connected between two supporting plate side walls at a corner, a reinforcing groove is formed in each supporting plate, a supporting sleeve is fixedly connected to the inner wall of each reinforcing groove, supporting sleeve rods are rotationally connected to the supporting sleeve, the end parts of the supporting sleeve rods are rotationally connected with the side walls of the reinforcing grooves, supporting seats are fixedly connected to the side walls of the supporting plates, positioning rods are inserted into the supporting seats, and balance supporting rods are fixedly connected between the positioning rods; the curing component is arranged on the side wall of the support plate and used for curing the mucky soil in the strengthening groove; the base plate is fixed at the bottom of the inner wall of the support plate, and a water collecting tank is arranged on one side of the base plate.
In order to improve the supporting effect, preferably, the equidistant five supporting sleeves are arranged from bottom to top, the side walls of the supporting sleeves are hermetically sleeved with communication rings, the communication rings are fixedly connected with the inner walls of the reinforced grooves, the communication rings are communicated with the inner cavities of the supporting sleeves, two adjacent communication rings are communicated through a first guide pipe, the side walls of the supporting seats are provided with piston grooves, the inner walls of the piston grooves are slidably connected with piston plates, a first spring is fixedly connected between the side walls of the piston plates and the piston grooves, the bottoms of the piston grooves are communicated with second guide pipes, and one ends of the second guide pipes far away from the piston grooves are communicated with the inner cavities of the communication rings at the top.
Further, the top of the piston plate is provided with an inclined chamfer, and the piston plate is extruded and attached with the positioning rod.
In order to improve the support intensity, preferably, the curing component includes the actuating lever, the actuating lever rotates with the backplate lateral wall to be connected, the one end of actuating lever runs through the backplate lateral wall and extends to support the inside and with the inner tip fixed connection who supports the loop bar, the actuating lever is kept away from the one end fixedly connected with drive runner of support sleeve, the drive runner is the same with the quantity that supports the sleeve setting, a plurality of through belt transmission connection between the drive runner, support loop bar lateral wall fixedly connected with stirring board, the drag reduction hole has been seted up to stirring board lateral wall.
Further, the diameters of the two driving rotating wheels positioned at the upper part and the lower part are larger than those of the driving rotating wheel positioned at the middle part, and the belts are connected in a staggered and interpenetrated mode.
Further, a pouring hole is formed in the top of the strengthening groove, and the pouring hole is communicated with the inner cavity of the strengthening groove.
In order to realize intelligent support, further, humidity sensor is inserted in the strengthening groove, humidity sensor top and backplate top fixed connection, humidity sensor's model is HR202L humidity-sensitive resistance formula.
In order to improve the leakproofness of backplate junction, preferably, both sides the junction of joint colludes is provided with the convex-concave cooperation stuck point of many places, joint groove has been seted up to the joint collude lateral wall, sliding connection has the laminating board in the laminating groove, laminating board lateral wall fixedly connected with push rod, the push rod runs through joint collude lateral wall and extends to the outside, the outer end fixedly connected with atress board of push rod, just the both ends of atress board all adopt the setting of arc fillet.
In order to improve the stress effect of the support plate, preferably, one side of the support plate is arranged in an equilateral trapezoid, and the included angle between two sides of the trapezoid is 125 degrees.
An intelligent supporting method for a roadbed pit comprises the following steps:
s1, positioning and paying off a foundation pit to be excavated on the surface of a roadbed;
s2, excavating a foundation pit according to the paying-off range, and discharging groundwater permeated into the foundation pit during excavation;
s3, inserting the support plates into a foundation pit of mucky soil, and enabling the support plates to be mutually clamped and fixed, so that an effective sealing support structure is formed;
s4, strengthening and positioning a supporting surface formed by a plurality of supporting plates on the same side;
s5, solidifying the mucky soil entering the support plate, so that a more effective support structure system is formed between the mucky soil and the support plate.
Compared with the prior art, the invention provides the intelligent support device and the support method for the roadbed pit, which have the following beneficial effects:
1. this intelligent support device is used in road bed pit compresses the air current in the piston groove through the gravity of locating lever pushing down for support the trend that the loop bar keeps outside extension, thereby support the both sides inner wall of strengthening the groove, formed a powerful tie bar, effectively improved the support intensity of backplate, and after the backplate lateral wall is pressed, high-pressure air current will be by back pressure to the piston inslot, with this formation to the reaction of soil pressure, effectively improved the support intensity of backplate.
2. This intelligent support device is used in road bed pit mixes between through lime powder and mucky soil, and the water content in the mucky soil of the consumption of the nitrosation consumption that takes place to emit a large amount of heat, with this mucky soil that will strengthen the inslot carries out drying solidification, so will form comparatively thick compressive layer in strengthening the inslot, thereby when shifting out the inside material of backplate and realizing saving material, utilize the soil landfill of solidification to shift out the space, improved the support intensity, avoid the backplate to appear the crooked condition of compression.
3. This intelligent support device is used to road bed pit wraps up in support sleeve and support loop bar outside through the mucky soil of solidification, so can with support sleeve and support the loop bar and receive a part of pressure effect dispersion to the soil of solidification in, effectually improved support sleeve and support loop bar's supporting effect, stir the board in addition and also will be wrapped up by the solidification to this further improves the cohesion of support sleeve and solidification soil, more further strengthening the supporting effect.
4. This intelligent support device is used in road bed pit promotes the close laminating of joint board and joint through the pressure effect that outside soil applyed the atress board, has improved the leakproofness of joint department of colluding, has blocked the path that the interior moisture of soil flowed into in the supporting construction, has avoided the interior moisture of soil to the invasion of supporting inside.
5. This intelligent support device is used to road bed pit utilizes humidity transducer to carry out real-time detection to the solidification effect of mucky soil, reminds the staff to strengthen the concrete solidification supporting strength in the inslot, is convenient for make its solidification degree remain in suitable threshold value within range all the time, has effectively improved the intelligent supporting effect of device.
Drawings
Fig. 1 is a schematic diagram of a front view overall structure of an intelligent supporting device for a roadbed pit, which is provided by the invention;
FIG. 2 is a schematic view of the whole partial structure of an intelligent supporting device for roadbed pit according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a fitting groove of the intelligent supporting device for the roadbed pit;
fig. 4 is an enlarged schematic view of the area a in fig. 3 of the intelligent supporting device for the roadbed pit according to the present invention;
FIG. 5 is a schematic diagram of the internal structure of a strengthening groove of the intelligent supporting device for the roadbed pit;
FIG. 6 is an enlarged schematic view of the area B in FIG. 5 of an intelligent supporting device for a roadbed pit according to the present invention;
fig. 7 is a schematic diagram of the internal structure of a supporting seat of the intelligent supporting device for the roadbed pit;
fig. 8 is a schematic view of a partially enlarged structure of fig. 7 of an intelligent supporting device for a deep pit of a roadbed according to the present invention.
In the figure: 1. a support plate; 2. a clamping hook; 21. an auxiliary fixing plate; 3. a strengthening groove; 31. a support sleeve; 311. a communication ring; 312. a first conduit; 32. a support loop bar; 321. an agitating plate; 322. a drag reducing hole; 33. a pouring hole; 4. a support base; 41. a positioning rod; 411. a balance stay bar; 42. a piston groove; 43. a piston plate; 44. a first spring; 45. a second conduit; 5. curing the assembly; 51. a driving rod; 52. driving a rotating wheel; 6. a substrate; 61. a water collection tank; 7. a humidity sensor; 8. a bonding groove; 81. bonding plates; 82. a push rod; 83. and a stress plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-8, an intelligent supporting device for a roadbed pit comprises a supporting plate 1, wherein one side of the supporting plate 1 is arranged in an equilateral trapezoid, and the included angle between two sides of the trapezoid is 125 degrees, so that the stressed area of the supporting plate 1 is enlarged, and the pressure facing the supporting plate 1 can be dispersed to openings at two sides of the supporting plate 1, so that the stressed force of the horizontal section of the supporting plate 1 is reduced, and the integral supporting effect of the supporting plate 1 is improved; the two sides of the support plates 1 are fixedly connected with the clamping hooks 2, the clamping hooks 2 on the side walls of two adjacent support plates 1 are mutually clamped, so that the support plates 1 with different numbers can be installed according to the different sizes of foundation pits, the support plates 1 are only required to be inserted in the installation process, the construction difficulty is small, the connection stability between the two support plates 1 after the clamping is high, the disassembly is convenient, the convenience of use is improved, the connecting positions of the clamping hooks 2 on the two sides are provided with a plurality of convex-concave matched clamping points, a plurality of convex-concave matched clamping points can effectively improve the connection stability of the clamping hooks 2 on the two sides, the supporting effect is improved, the side walls of the clamping hooks 2 are provided with the laminating grooves 8, the laminating plates 81 are connected in a sliding manner in the laminating grooves 8, the side walls of the laminating plates 81 are fixedly connected with the push rods 82, the push rod 82 extends to the outside through the side wall of the clamping hook 2, the outer end of the push rod 82 is fixedly connected with the stress plate 83, and both ends of the stress plate 83 are provided with arc fillets, so that when the clamping hooks 2 of the side walls of the two support plates 1 are mutually inserted and fixed, under the action of downward pressing of gravity, one side of the support plate 1 extrudes the bonding plate 81, so that the bonding plate 81 is retracted into the bonding groove 8, and then after the support plate 1 is inserted, the soil pressure on the outer side is applied to the stress plate 83, so that the bonding plate 81 is pushed to be tightly bonded with the clamping hook 2, the sealing performance of the clamping hook 2 is improved, the path of water in soil flowing into the support structure is blocked, and the invasion of the water in soil to the inside of the support is avoided; an auxiliary fixing plate 21 is fixedly connected between the side walls of the two support plates 1 at the corner, so that the fixing effect between the two support plates 1 at the corner is enhanced, and the support effect of the whole support system is improved; the inside of the support plate 1 is provided with the strengthening groove 3, and is used for collecting a part of mucky soil into the strengthening groove 3 in the process of inserting the support plate 1 into the mucky soil, so that the counterweight of the support plate 1 is increased, the support effect is improved, the inner wall of the strengthening groove 3 is fixedly connected with the support sleeve 31, the support sleeve 31 is rotationally connected with the support sleeve rod 32, the end part of the support sleeve rod 32 is rotationally connected with the side wall of the strengthening groove 3, the side wall of the support plate 1 is fixedly connected with the support seat 4, the positioning rods 41 are inserted into the plurality of support seats 4, the balance support rods 411 are fixedly connected between the four-side positioning rods 41, and are used for mutually dispersing and oppositely supporting the extrusion force received by the four-side support plate 1, so that a triangular support structure is formed, the support strength of the four-side support plate 1 is effectively improved, the construction space inside the whole support is more spacious, and the support effect is improved; the curing component 5 is arranged on the side wall of the support plate 1 and is used for curing the mucky soil in the strengthening groove 3; the base plate 6 fixed at the bottom of the inner wall of the support plate 1, and the water collecting tank 61 is arranged at one side of the base plate 6, so as to conveniently discharge water flow accidentally oozing out or raining and accumulating in the support system, thereby reducing the construction difficulty in the support system.
Referring to fig. 4-8, five supporting sleeves 31 are arranged at equal intervals from bottom to top, the side walls of the supporting sleeves 31 are hermetically sleeved with communication rings 311, the communication rings 311 are fixedly connected with the inner wall of the strengthening groove 3, the communication rings 311 are communicated with the inner cavity of the supporting sleeve 31, two adjacent communication rings 311 are communicated through a first conduit 312, the side walls of the supporting seat 4 are provided with piston grooves 42, the inner walls of the piston grooves 42 are slidably connected with piston plates 43, a first spring 44 is fixedly connected between the side walls of the piston plates 43 and the piston grooves 42, the bottoms of the piston grooves 42 are communicated with a second conduit 45, one end of the second conduit 45 far away from the piston grooves 42 is communicated with the inner cavity of the topmost communication ring 311, the top of the piston plates 43 is provided with an inclined chamfer, the piston plates 43 are extruded and attached with positioning rods 41, after all the surrounding supporting plates 1 are fixedly inserted, the positioning rods 41 are pressed into the surrounding supporting seats 4, under the action of gravity of the positioning rod 41, the piston plate 43 is extruded, so that the piston plate 43 is retracted into the piston groove 42, the air flow in the piston groove 42 is compressed, the air flow enters the topmost communication ring 311 along the second conduit 45, the compressed air flow is simultaneously dispersed into a plurality of communication rings 311 by the communication action of the first conduit 312, the communication rings 311 are communicated with the inner cavity of the supporting sleeve 31, the compressed air flow increases the air pressure in the supporting sleeve 31, the supporting sleeve rod 32 is driven to keep the outward extending trend, the inner walls of the two sides of the reinforcing groove 3 are supported, a strong tie bar is formed, the supporting strength of the supporting plate 1 is effectively improved, and when the side wall of the supporting plate 1 is subjected to high soil pressure, the supporting sleeve rod 32 will tend to retract into the supporting sleeve 31, and the high pressure air flow will be back-pressed into the piston groove 42, so that the piston plate 43 presses the positioning rod 41 to press the surface of the supporting plate 1, thereby forming a reaction to the soil pressure, and effectively improving the supporting strength of the supporting plate 1 through the interaction of the two pressures.
Referring to fig. 4 to 8, wherein the curing assembly 5 includes a driving rod 51, the driving rod 51 is rotatably connected with the sidewall of the support plate 1, one end of the driving rod 51 extends to the inside of the support sleeve 31 through the sidewall of the support plate 1 and is fixedly connected with the inner end of the support sleeve 32, one end of the driving rod 51 far away from the support sleeve 31 is fixedly connected with driving rotating wheels 52, the driving rotating wheels 52 are in the same number as the support sleeve 31, a plurality of driving rotating wheels 52 are connected through belt transmission, the sidewall of the support sleeve 32 is fixedly connected with a stirring plate 321, the sidewall of the stirring plate 321 is provided with drag reducing holes 322 for reducing the rotation resistance of the stirring plate 321, realizing differential flow of mucky soil, improving the mixing effect, two driving rotating wheels 52 at the upper and lower parts have diameters larger than the driving rotating wheels 52 at the middle part, the belt is in staggered connection, the top of the strengthening groove 3 is provided with a material pouring hole 33, the pouring holes 33 are communicated with the inner cavity of the strengthening groove 3, after the supporting plate 1 is erected, lime powder is poured into the strengthening groove 3 from the pouring holes 33, so that nitration reaction occurs between the lime powder and the mucky soil in the strengthening groove 3, and meanwhile, the driving rotating wheel 52 is rotated, so that the supporting sleeve rods 32 at a plurality of positions drive the stirring plate 321 to rotate, thereby fully mixing the lime powder with the mucky soil, effectively improving the range of nitration reaction, ensuring the curing effect of the mucky soil, consuming the moisture content in the mucky soil along with the progress of nitration reaction, releasing a large amount of heat, drying and curing the mucky soil in the strengthening groove 3, forming a thicker compression layer in the strengthening groove 3, realizing material saving in the moving out supporting plate 1, filling and moving out a space by using the cured soil, the supporting strength is improved, the situation that the supporting plate 1 is bent under pressure is avoided, the side wall of the supporting plate 1 is heated by the heat released outside, so that the mucky soil on the side wall of the supporting plate 1 is heated and solidified, the mobility of the mucky soil on the side wall of the supporting plate 1 is effectively reduced, the pressure effect of the mucky soil on the side wall of the supporting plate 1 is reduced, the supporting effect is improved, meanwhile, the dried mucky soil in the strengthening groove 3 is wrapped outside the supporting sleeve 31 and the supporting sleeve rod 32, so that part of the pressure effect on the supporting sleeve 31 and the supporting sleeve rod 32 is dispersed into solidified soil, the supporting effect of the supporting sleeve 31 and the supporting sleeve rod 32 is effectively improved, and the stirring plate 321 is solidified and wrapped, so that the binding force of the supporting sleeve 31 and the solidified soil is further strengthened; the humidity sensor 7 is inserted into the strengthening groove 3, the top of the humidity sensor 7 is fixedly connected with the top of the support plate 1, the model of the humidity sensor 7 is HR202L humidity-sensitive resistor type, the solidifying effect of the mucky soil can be detected in real time by utilizing the humidity sensor 7, the solidifying degree of the mucky soil is always kept within a proper threshold range, after the moisture content of the mucky soil which is solidified by invasion of the underground moisture in the later stage is increased, an operator can be reminded to continue adding limestone for solidifying operation through numerical display of the humidity sensor 7;
the following test is performed on what standard the water content reaches after the limestone and the mucky soil are solidified, so that the highest solidification stress effect can be generated, and the detailed test result is as follows:
mucky soil solidification test data record table
Thus, in a plurality of curing strength tests, it was concluded that the stress effect resulting from curing of the mucky soil is optimal and the optimal stress effect is 3MPa when the water content in the mucky soil after curing is 1-5%.
Example 2:
referring to fig. 1 to 8, in the intelligent supporting device for a deep pit of a roadbed according to embodiment 1, we propose an intelligent supporting method for a deep pit of a roadbed based on the device, comprising the following steps:
s1, positioning and paying off a foundation pit to be excavated on the surface of a roadbed;
s2, excavating a foundation pit according to the paying-off range, and discharging groundwater permeated into the foundation pit during excavation;
s3, inserting the support plates 1 into a foundation pit of mucky soil, mutually clamping and fixing the support plates 1 through the clamping hooks 2, so that an effective sealing support structure is formed, when the clamping hooks 2 on the side walls of the two support plates 1 are mutually spliced and fixed, under the action of downward pressure of gravity, one side support plate 1 extrudes the bonding plate 81, so that the bonding plate 81 is retracted into the bonding groove 8, and then after the support plates 1 are inserted, the soil pressure on the outer side is applied to the stress plate 83, so that the bonding plate 81 and the clamping hooks 2 are pushed to be tightly bonded, the sealing performance of the clamping hooks 2 is improved, the path of water in soil flowing into the support structure is blocked, and the invasion of the water in soil to the interior of the support is avoided;
s4, pressing the positioning rod 41 into the surrounding supporting seat 4, and under the action of gravity of the positioning rod 41, extruding the piston plate 43, so that the piston plate 43 retracts into the piston groove 42, thereby compressing air flow in the piston groove 42, enabling the air flow to enter the topmost communicating ring 311 along the second conduit 45, enabling the compressed air flow to be dispersed into a plurality of communicating rings 311 at the same time through the communicating action of the first conduit 312, enabling the communicating rings 311 to be communicated with the inner cavity of the supporting sleeve 31, enabling the air pressure in the supporting sleeve 31 to be increased at the moment through the compressed air flow, driving the supporting sleeve rod 32 to keep an outward extending trend, supporting the inner walls of two sides of the reinforcing groove 3, forming a strong tie bar, effectively improving the supporting strength of the supporting plate 1, and enabling the supporting sleeve rod 32 to tend to retract into the supporting sleeve 31 when the side wall of the supporting plate 1 is subjected to high soil pressure, enabling the piston flow to be back-pressed into the piston groove 42, so that the compressed air flow in the piston plate 43 is enabled to be pressed against the surface of the supporting plate 1, and the supporting plate 1 is pressed against the supporting plate 1 by the pressure, so that the supporting plate is opposite to the supporting plate 1 is effectively pressed against the supporting plate 1;
s5, pour lime powder into the strengthening groove 3 from the pouring hole 33, make the nitration reaction take place between the mucky soil in lime powder and the strengthening groove 3, and simultaneously rotate drive runner 52, make the support loop bar 32 of many places drive stirring board 321 and rotate, so make between lime powder and the mucky soil intensive mixing, effectively improve the scope of nitration reaction, the effect that mucky soil was solidified has been ensured, and with the going on of nitration reaction will consume the moisture content in the mucky soil, and release a large amount of heat, with this will strengthen the mucky soil in the groove 3 and dry solidification, so will form comparatively thick compressive layer in the strengthening groove 3, thereby when shifting out the inside material of backplate 1 and realizing saving material, utilize the soil landfill removal space of solidification, support intensity has been improved, avoid backplate 1 to appear the circumstances of pressurized bending, and the heat of outer release will also make the side wall heating of backplate 1, thereby the effect that the mucky soil of backplate 1 side wall is solidified, and the effect that can be improved by the support sleeve 31 of the support loop bar 31 of this has been carried out, and the support sleeve 31 of the pressure of the side wall 1 has been improved, and the effect that can be more improved by the support sleeve 31 is further carried out with the support sleeve 31, and the side wall 31 of the support sleeve 31 has been improved, and the effect that can be more improved and the support sleeve 31 is more well wrapped up by the support sleeve 31.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. Intelligent support device is used in road bed pit, its characterized in that includes:
the support plate (1), support plate (1) both sides equal fixedly connected with joint colludes (2), two adjacent the joint colludes (2) of support plate (1) lateral wall each other block between, two of corner fixedly connected with assists fixed plate (21) between support plate (1) lateral wall, strengthening groove (3) have been seted up to support plate (1) inside, strengthening groove (3) inner wall fixedly connected with support sleeve (31), support sleeve (31) internal rotation is connected with support loop bar (32), rotate between support loop bar (32) tip and strengthening groove (3) lateral wall and be connected, support plate (1) lateral wall fixedly connected with supporting seat (4), the polylith supporting seat (4) interpolation has locating lever (41), around fixedly connected with balance brace (411) between locating lever (41), support sleeve (31) are equidistant from bottom to top and are provided with five, support sleeve (31) lateral wall seal sleeve has cup jointed communication ring (311), communication ring (311) are connected with inner wall (311) and strengthening ring (3) lateral wall and are connected with each other between (42) and two adjacent (42) lateral walls through connecting ring (311), the inner wall of the piston groove (42) is slidably connected with a piston plate (43), a first spring (44) is fixedly connected between the side wall of the piston plate (43) and the piston groove (42), a second guide pipe (45) is communicated with the bottom of the piston groove (42), and one end, far away from the piston groove (42), of the second guide pipe (45) is communicated with the inner cavity of the topmost communication ring (311);
the solidification component (5), solidification component (5) set up in backplate (1) lateral wall for solidify the muddy soil in strengthening groove (3), solidification component (5) are including actuating lever (51), actuating lever (51) are connected with backplate (1) lateral wall rotation, the one end of actuating lever (51) runs through backplate (1) lateral wall and extends to support sleeve (31) inside and with the inner tip fixed connection of support sleeve pole (32), the one end that support sleeve (31) was kept away from to actuating lever (51) is fixedly connected with drive runner (52), the quantity that drive runner (52) set up with support sleeve (31) is the same, a plurality of drive runners (52) are connected through belt transmission, stirring board (321) are connected with to support sleeve (32) lateral wall fixed connection, drag reduction hole (322) have been seted up to stirring board (321) lateral wall, pouring hole (33) are seted up at strengthening groove (3) top, pouring hole (33) are linked together with the inner chamber of groove (3);
a base plate (6) fixed at the bottom of the inner wall of the support plate (1), and a water collecting tank (61) is arranged at one side of the base plate (6).
2. The intelligent support device for the roadbed pit according to claim 1, wherein the top of the piston plate (43) is provided with an inclined chamfer, and the piston plate (43) is pressed and attached with the positioning rod (41).
3. The intelligent support device for the roadbed pit according to claim 1, wherein the diameter of the two driving wheels (52) at the upper part and the lower part is larger than that of the driving wheel (52) at the middle part, and the belts are connected in a staggered and interpenetrated manner.
4. The intelligent support device for the roadbed pit according to claim 1, wherein a humidity sensor (7) is inserted in the strengthening groove (3), the top of the humidity sensor (7) is fixedly connected with the top of the support plate (1), and the model of the humidity sensor (7) is HR202L humidity-sensitive resistor.
5. The intelligent support device for the roadbed pit according to claim 1, wherein a plurality of convex-concave matching clamping points are arranged at the connecting positions of the clamping hooks (2) at two sides, the side walls of the clamping hooks (2) are provided with bonding grooves (8), bonding plates (81) are connected in a sliding mode in the bonding grooves (8), push rods (82) are fixedly connected to the side walls of the bonding plates (81), the push rods (82) penetrate through the side walls of the clamping hooks (2) to extend to the outside, stress plates (83) are fixedly connected to the outer ends of the push rods (82), and arc-shaped round corners are arranged at two ends of the stress plates (83).
6. The intelligent supporting device for the roadbed pit according to claim 1, wherein one side of the supporting plate (1) is arranged in an equilateral trapezoid, and an included angle between two sides of the trapezoid is 125 degrees.
7. An intelligent support method for a roadbed pit, comprising the intelligent support device for a roadbed pit according to any one of claims 1 to 6, which is characterized by comprising the following steps:
s1, positioning and paying off a foundation pit to be excavated on the surface of a roadbed;
s2, excavating a foundation pit according to the paying-off range, and discharging groundwater permeated into the foundation pit during excavation;
s3, inserting the support plates (1) into a foundation pit of the mucky soil, and enabling the support plates (1) to be mutually clamped and fixed, so that an effective sealing support structure is formed;
s4, strengthening and positioning a supporting surface formed by a plurality of supporting plates (1) on the same side;
s5, solidifying the mucky soil entering the support plate (1) to form a more effective support structure system between the mucky soil and the support plate (1).
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| CN202311775188.2A CN117431970B (en) | 2023-12-22 | 2023-12-22 | Intelligent supporting device and supporting method for roadbed pit |
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| CN202311775188.2A CN117431970B (en) | 2023-12-22 | 2023-12-22 | Intelligent supporting device and supporting method for roadbed pit |
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| CN117431970B true CN117431970B (en) | 2024-04-09 |
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