CN116591196B - Flexible supporting structure of excavation side slope - Google Patents
Flexible supporting structure of excavation side slope Download PDFInfo
- Publication number
- CN116591196B CN116591196B CN202310875273.XA CN202310875273A CN116591196B CN 116591196 B CN116591196 B CN 116591196B CN 202310875273 A CN202310875273 A CN 202310875273A CN 116591196 B CN116591196 B CN 116591196B
- Authority
- CN
- China
- Prior art keywords
- supporting
- rod
- support
- wall
- steel ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008093 supporting effect Effects 0.000 title claims abstract description 120
- 238000009412 basement excavation Methods 0.000 title claims description 5
- 239000002689 soil Substances 0.000 claims abstract description 50
- 238000005553 drilling Methods 0.000 claims abstract description 23
- 239000004927 clay Substances 0.000 claims abstract description 9
- 230000008602 contraction Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 83
- 239000010959 steel Substances 0.000 claims description 83
- 238000005452 bending Methods 0.000 claims description 21
- 238000010276 construction Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 abstract description 24
- 241001391944 Commicarpus scandens Species 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
-
- 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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a flexible supporting structure of a cut side slope, which relates to the technical field of flexible supporting of cut side slopes and comprises an anchor rod and a plurality of supporting plates, wherein the anchor rod comprises a drilling head and a plurality of supporting rods, one end external threads of each supporting rod are in threaded connection with threaded sleeves of the adjacent supporting rods, the tail end of the drilling head is provided with a threaded groove in threaded connection with the external threads of each supporting rod, the outer wall of the drilling head is fixedly provided with a plurality of spiral sheets, the bottom end surface of each supporting plate is fixedly provided with a plurality of supporting plates, positioning plates are fixed between the end parts of the plurality of supporting plates, and the center of each positioning plate is axially provided with a threaded hole in threaded connection with the outer wall of the threaded sleeve of the outermost supporting rod far away from the drilling head. The invention uses the support rod anchored into the deep layer of the soil body to resist the repeated expansion and contraction deformation of the high-plasticity clay, and simultaneously, the connecting support plate is fixed on the surface of the soil body of the slope for resisting the sand which falls down and falls down when the slope top collapses, thereby solving the problem that the support body cast by concrete is easy to break and lose efficacy under the expansion and contraction deformation of the expansion soil and cannot play a role in support.
Description
Technical Field
The invention relates to the technical field of flexible support of a side slope, in particular to a flexible support structure of a side slope.
Background
In order to ensure safety and structural stability in construction of an expansive soil excavation side slope, a supporting structure is required to be installed at the side slope position, in the prior art, an anchor rod is embedded into the side slope soil body in a manner of casting concrete, steel strands are fixed, the side slope is actively stressed and supported, and the expansive soil is high-plasticity clay which is formed in a natural geological process and has water absorption expansion softening, water loss shrinkage cracking and repeated expansion deformation, so that the supporting body cast by the concrete is easy to break and lose efficacy under the expansion deformation of the expansive soil, and the supporting effect on the side slope cannot be achieved.
Disclosure of Invention
The invention aims to provide a flexible supporting structure of a cut side slope, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a flexible supporting construction of side slope digs, includes stock and a plurality of backplate, the stock is including boring first and many supporting poles, supporting pole one end outer wall is equipped with the external screw thread, the other end of supporting pole is fixed with the thread bush, the one end external screw thread and the adjacent thread bush threaded connection of supporting pole, boring the first terminal thread groove of having seted up with supporting pole external screw thread connection, boring the outer wall of first and being fixed with a plurality of flight.
The rotary table driving device is utilized to provide rotary power, the supporting rod is used as a power transmission part, the drill bit synchronously rotates, the drill bit is screwed into the slope soil body, the drill bit synchronously penetrates into the deep soil body to form a deep groove, then the rotary table driving device is separated from the supporting rod penetrating into the deep groove, the novel supporting rod is mounted on the rotary table driving device again, the novel external threads of the supporting rod are in threaded connection with the supporting rod threaded sleeve penetrating into the deep groove, the transmission distance of the power transmission part is prolonged, and the mode of adding the novel supporting rod is repeated continuously, so that the drill bit continues to penetrate into the deep soil body.
The bottom end face of the support plate is fixed with a plurality of support plates, a positioning disk is fixed between the end parts of the plurality of support plates, a threaded hole which is in threaded connection with the outer wall of a threaded sleeve of the outermost support rod far away from the drilling head is axially formed in the center of the positioning disk, a plurality of positioning holes are axially formed in the edge position of the positioning disk, positioning steel bars are inserted into the positioning holes, and the end parts of the positioning steel bars are tamped into side slope soil.
When the outermost support rod body is completely screwed into the deep groove, the thread sleeve of the support rod stays at the outer side of the notch of the deep groove, then the positioning hole of the positioning disc is in threaded connection with the outer wall of the thread sleeve, after the positioning hole of the positioning disc is completely screwed into the outer wall of the thread sleeve, the support plate is located at the upper side of the positioning disc, and then a positioning steel rod penetrates through the positioning hole of the positioning disc and then is tamped into the slope soil body, so that the positioning disc and the thread sleeve are prevented from relative rotation, the positioning disc is ensured to be stably sleeved on the thread sleeve, the support plate is located at the upper position of the positioning disc, and the support plate is fixedly attached to the surface of the slope soil body and used for blocking sand and gravel falling due to landslide, so that the problem of falling rocks is avoided, and the support effect on the slope cannot be achieved.
In a further embodiment, the helical flight major diameter of the drill bit is greater than the major diameter of the support rod.
In a further embodiment, the helical flight major diameter of the drill bit is equal to the major diameter of the support rod.
In a further embodiment, the supporting rod is axially provided with a hollow cavity communicated with the threaded sleeve, a plurality of steel twisted ropes are inserted into the hollow cavity in an inserting mode, and the initial ends of the steel twisted ropes penetrate through the hollow cavities of all the supporting rods and then extend into the threaded grooves of the drilling head.
In a further embodiment, a splice is provided between the plurality of steel strands.
The splice comprises a supporting steel ring and a plurality of grafting steel rings, a plurality of connecting rods distributed along the radial direction of the supporting steel ring are fixed on the outer wall of the supporting steel ring, the radial outer wall of the grafting steel ring is fixedly connected with the end part of the connecting rod, and the grafting steel ring is in sliding sleeve joint with the outer wall of the steel strand.
In a further embodiment, the outer wall of the support steel ring is provided with a plurality of bending parts bending towards the center of the support steel ring.
In a further embodiment, the end of the connecting rod remote from the plug-in steel ring is fixed in the middle of the bending part.
In a further embodiment, the end of the connecting rod, which is far away from the plug-in steel ring, is fixed at the position, which is close to the bending part, of the outer wall of the supporting steel ring.
In a further embodiment, the two ends of the support plate are bent downwards, so that the whole support plate is in a semicircular structure.
In a further embodiment, extension plates distributed along the radial direction of the semicircular structure are fixed at both ends of the support plate of the semicircular structure.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a flexible supporting structure of an excavated side slope, which anchors an anchor rod consisting of a plurality of supporting rods and drilling heads into the deep position of the soil body of the side slope, fixes a supporting guard plate at the surface position of the soil body of the side slope and is connected with a threaded sleeve of the outermost supporting rod, the supporting rods anchored into the deep position of the soil body resist repeated expansion and contraction deformation of high-plasticity clay of the side slope, the supporting rods are assembled together to form a whole with longer length, a certain bending deformation buffer range is arranged in the direction deviating from the axis of the supporting rod, the phenomenon of fracture is difficult to occur, meanwhile, the supporting guard plate can be connected and fixed on the surface of the soil body of the side slope for blocking sand and gravel falling due to collapse of the top of the side slope, the falling stone safety accident is avoided, and the problem that the supporting body cast by concrete is easy to break and lose efficacy under the expansion and contraction deformation of expansive soil can not play a role in supporting the side slope is solved.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present invention;
FIG. 2 is a schematic diagram of the soil structure of a side slope anchored by a stock rod according to the invention;
FIG. 3 is a partial cross-sectional view of a drill bit of the present invention;
FIG. 4 is an exploded view of a plurality of support rods according to the present invention;
FIG. 5 is a schematic view of the structure of a steel strand penetrating through a support rod according to the present invention;
FIG. 6 is a schematic view of a plurality of steel strands and a splice according to the present invention;
FIG. 7 is a schematic view of a splice of the present invention;
FIG. 8 is a side view of one of the constructions of the splice of the present invention;
FIG. 9 is a side view of an alternative construction of the splice of the present invention;
FIG. 10 is a schematic view of the structure of a plurality of support plates of the invention which are parallel and vertically opposite to each other and fixed on the soil surface of a side slope;
FIG. 11 is a schematic view of a structure in which a plurality of support plates are parallel and fixed on the soil surface of a side slope in a vertically staggered manner.
In the figure: 1. drilling a bit; 2. a support rod; 3. a thread sleeve; 4. a positioning plate; 5. a support plate; 6. a support plate; 7. an extension plate; 8. steel strand; 9. inserting a steel ring; 10. and supporting the steel ring.
Detailed Description
The following description will clearly and fully describe the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-11, this embodiment provides a flexible supporting structure for a side slope, including an anchor rod and a plurality of supporting plates 6, the anchor rod includes a drill bit 1 and a plurality of supporting rods 2, an external thread is provided on an outer wall of one end of each supporting rod 2, a threaded sleeve 3 is fixed on the other end of each supporting rod 2, an external thread of one end of each supporting rod 2 is in threaded connection with a threaded sleeve 3 of an adjacent supporting rod 2, a threaded groove connected with the external thread of each supporting rod 2 is provided at an end of each drill bit 1, a plurality of spiral sheets are fixed on an outer wall of each drill bit 1, as shown in fig. 1-4, the threaded groove of each drill bit 1 is connected with the external thread of each supporting rod 2, one end of each supporting rod 2 far from each drill bit 1 is mounted on a turntable driving device of an engineering driller, and an angle of the turntable driving device of the engineering driller is adjusted, so that an included angle between each supporting rod 2 and each drill bit 1 and each side slope soil body is anchored into each side slope body at an angle relatively perpendicular to each side slope soil body.
In the prior art, a drill bit 1 is adopted to carry a plurality of rods with hollow structures into a soil body deep layer, the drill bit 1 is not rotated after being screwed into a required depth, the rod body also stretches into a groove formed by rotation of the drill bit 1, then the rod body is reversely rotated to separate the rod body from the drill bit 1, and concrete is poured into the groove through the hollow structures of the rod body so as to prevent collapse in the groove and influence concrete pouring to form a supporting body.
However, the support body formed by the concrete is embedded in the soil layer of the high-plasticity clay, and the expansive clay is the high-plasticity clay which is formed in the natural geological process, has water absorption expansion softening, water loss shrinkage cracking and repeated expansion and shrinkage deformation, has obvious repeated expansion and shrinkage, so that the support body cast by the concrete is easy to break and lose efficacy under the expansion and shrinkage deformation of the expansive clay.
Therefore, the rotary driving device is utilized to provide rotary power, the supporting rod 2 is used as a power transmission part, the drill bit 1 rotates synchronously, the drill bit 1 is screwed into the soil body of the side slope through the spiral piece, the supporting rod 2 also penetrates into the deep groove along with the deep drilling of the soil body, then the rotary driving device is separated from the supporting rod 2 penetrating into the deep groove, the new supporting rod 2 is installed on the rotary driving device again, the external threads of the new supporting rod 2 are in threaded connection with the threaded sleeve 3 of the supporting rod 2 penetrating into the deep groove, the transmission distance of the power transmission part is prolonged, and the mode of adding the new supporting rod 2 is repeated continuously, so that the drill bit 1 continues to penetrate into the deep part of the soil body.
According to the anchor rod anchoring depth demand, anchor rod anchoring depth with the depth of soil body that many supporting rods 2 are constituteed utilizes many supporting rods 2 to withstand the repeated expansion and contraction deformation of the high plasticity clay of side slope, and many supporting rods 2 are assembled together and are formed longer whole of length, have bending deformation buffer range in the skew supporting rod 2 axis direction, play flexible supporting effect, when receiving the soil layer extrusion, can follow the soil layer repeatedly expansion deformation and move the position in step, be difficult for taking place cracked phenomenon.
The bottom end surface of the support plate 6 is fixedly provided with a plurality of support plates 5, a positioning disk 4 is fixed between the end parts of the plurality of support plates 5, the center of the positioning disk 4 is axially provided with a threaded hole which is in threaded connection with the outer wall of a threaded sleeve 3 of an outermost support rod 2 far away from the drilling head 1, a plurality of positioning holes are axially formed in the edge position of the positioning disk 4, positioning steel rods are inserted into the positioning holes, the end parts of the positioning steel rods are tamped into a slope soil body, as shown in fig. 1, the plurality of support rods 2 follow the drilling head 1 and are screwed into a deep groove, when the rod body of the outermost support rod 2 is completely screwed into the deep groove, the threaded sleeve 3 of the support rod 2 stays outside a notch of the deep groove, then the positioning hole of the positioning disk 4 is in threaded connection with the outer wall of the threaded sleeve 3, the positioning hole of the positioning disk 4 is completely screwed into the outer wall of the threaded sleeve 3, the support plate 5 is required to be ensured to be positioned at the upper side position of the positioning disk 4, then the positioning steel rods penetrate through the positioning holes of the positioning disk 4 and then are tamped into the slope soil body, relative rotation between the positioning disk 4 and the threaded sleeve 3 is ensured not to occur, the problem that the support plate 4 is stably falls down on the slope surface of the support plate 6, and the support plate is prevented from falling down on the slope surface due to the side of the support plate, and the problem is avoided.
The support body formed by concrete is replaced by the support rod 2, and when the support body is subjected to repeated expansion deformation of a soil layer, the support body cannot be transversely broken and can be bent, so that even if the support body is bent irreversibly, the support rod 2 is not affected to bear the extrusion linkage support plate 6 of the soil layer, and the support plate 6 is fixedly attached to the surface of a slope soil body to play a support role.
The two ends of the support plate 6 are bent downwards to enable the whole support plate 6 to be in a semicircular structure, as shown in fig. 1, the support plate 6 is fixed on the surface of a slope soil body, when sand rolls off at the top of a slope, a surrounding baffle higher than the surface of the soil body is formed on the surface of the soil body by utilizing the plate body of the support plate 6, the sand rolls off at the top of the slope and injures constructors by smashing, the rolling sand rolls off along the slope and smashes on the plate body of the support plate 6, and due to the fact that the support plate 6 is in the semicircular structure, the plate body of the support plate 6 is bent, the plate body can buffer the impact force of the sand roll off when the sand is smashed on the plate body of the support plate 6, so that the sand roll off speed is reduced, and the impact force caused by the sand diameter of the sand roll off at the top of the slope is reduced to the maximum.
Extension plates 7 distributed along the radial direction of the semicircular structure are fixed at two ends of the support plate 6, as shown in fig. 1, after sand is smashed on the plate body of the support plate 6, the sand continuously rolls off along the curved outer wall of the plate body, the extension plates 7 are utilized to receive the rolling sand, after the weight of the sand piled on the extension plates 7 is enough, the extension plates 7 and the support plate 6 are pressed down, the bending radian of the support plate 6 is larger, the extension plates 7 are gradually inclined downwards, the sand slides down onto the plate body of the next support plate 6, and a protective frame for preventing the sand from rolling off and causing safety accidents is formed by arranging a plurality of support plates 6 on a slope soil body.
As shown in fig. 10, the arrangement mode of the support plates 6 is that the support plates 6 are arranged in a plurality of rows, each row of support plates 6 is provided with a plurality of support plates, the support plates 6 in adjacent rows are sequentially distributed in parallel from the top of the slope to the bottom of the slope, and the support plates 6 in adjacent rows are vertically opposite, so that the arrangement mode can utilize the extension plates 7 on two sides of the plurality of rows of support plates 6 to sequentially receive the sand falling from the upper row of extension plates 7, reduce the impact force of the sand falling from the top of the slope to the bottom of the slope, and reduce the safety accident rate caused by the sand falling.
The arrangement mode of the supporting plates 6 shown in fig. 11 can also be adopted, wherein a plurality of rows of supporting plates 6 are arranged, each row of supporting plates 6 is provided with a plurality of supporting plates, the supporting plates 6 are sequentially distributed in parallel from the slope top to the slope bottom, and the supporting plates 6 of the adjacent rows are distributed in a staggered manner up and down, the lower row of supporting plates 6 are used for bearing the sand falling from the upper row of extending plates 7, the sand falls to the extending plates 7 on the two sides along the outer wall of the supporting plates 6, the sand falling on the upper row of extending plates 7 is reduced to generate larger impact force on the lower row of extending plates 7, and the accumulated sand on the lower row of extending plates 7 is caused to fall down again due to the inclination of the impact force, so that the larger potential safety hazard is avoided.
The spiral piece of the drilling head 1 is larger than the supporting rod 2 in large diameter, then the drilling head 1 carries a plurality of supporting rods 2 to be screwed into a deep groove formed by rotation of the drilling head 1, as shown in fig. 2, a gap with a certain distance is formed between the radial outer wall of the supporting rod 2 and the inner wall of the deep groove, before the threaded hole of the positioning disk 4 is sleeved on the outer wall of the threaded sleeve of the outermost supporting rod 2, an opening of the threaded sleeve 3 is plugged by a plugging piece (such as a rubber block with the same inner diameter as the threaded sleeve 3 and other solid matters), concrete can be poured into the deep groove through the notch of the deep groove, after the concrete poured into the deep groove is solidified, a concrete hollow cylinder structure which is embedded in the deep groove and wrapped on the outer wall of the supporting rod 2 is formed.
The large diameter of the spiral piece of the drilling head 1 is equal to the large diameter of the supporting rod 2, so that the drilling head 1 carries a plurality of supporting rods 2 to be screwed into a deep groove formed by the rotation of the drilling head 1, the radial outer wall of the supporting rod 2 is mutually attached to the inner wall of the deep groove, and the anti-breaking strength of the rod body of the supporting rod 2 is directly adopted to meet the supporting strength of the whole supporting structure.
Simultaneously, the hollow cavity communicated with the thread bush 3 is axially formed in the support rod 2, a plurality of steel twisted ropes 8 are inserted in the hollow cavity, the initial ends of the steel twisted ropes 8 penetrate through the hollow cavities of all the support rods 2 and then extend into the thread grooves of the drilling head 1, as shown in fig. 5, the hollow cavity is formed in the support rod 2, the plurality of steel twisted ropes 8 are additionally arranged in the hollow cavity of the plurality of support rods 2, even if the support rod 2 bends the hollow support rod 2 due to repeated expansion and contraction of expansive soil, the built-in multi-steel twisted ropes 8 can prevent the support rod 2 from being broken, the function of linking the support plates 6 positioned on the soil surface of a slope is also achieved, and the steel twisted ropes 8 are built in the hollow support rod 2 and can follow the synchronous peristaltic position of the soil body when the expansive soil is repeatedly expanded and contracted, so that the expansion and contraction of the soil are met.
And splicing pieces are arranged among the plurality of steel strands 8, as shown in fig. 6, the plurality of steel strands 8 are placed in the hollow cavity of the support rod 2 through the splicing pieces to be wound and distributed, the plurality of steel strands 8 are respectively distributed close to the inner wall of the hollow cavity through the splicing pieces, and the bending-resistant part of the reinforced support rod 2 is formed in the hollow cavity.
The splice includes support steel ring 10 and a plurality of grafting steel ring 9, support steel ring 10 outer wall is fixed with a plurality of connecting rods that distribute along support steel ring 10 radial direction, grafting steel ring 9 radial outer wall and connecting rod tip fixed connection, grafting steel ring 9 and steel strand 8 outer wall slip cup joint, as shown in fig. 7, set up a plurality of grafting steel rings 9 on a support steel ring 10, a plurality of grafting steel ring 9 cover are established at a plurality of steel strand 8 outer walls, a plurality of steel strand 8 insert hollow supporting rod 2 with a plurality of splice in, reinforcing supporting rod 2 supporting strength in the cavity of supporting rod 2.
The outer wall of the supporting steel ring 10 is provided with a plurality of bending parts bending towards the center of the supporting steel ring 10, one end of the connecting rod, away from the inserted steel ring 9, is fixed at the middle position of the bending parts, as shown in fig. 7-8, when the soil body in any direction on the radial outer wall of the supporting rod 2 is subjected to expansion deformation, the radial outer wall of the supporting rod 2 can be subjected to bending deformation due to extrusion of the soil body, and meanwhile, the steel strand 8 pushes the bending position of the supporting steel ring 10 to a position close to the center of the supporting steel ring 10 through the connecting rod inserted with the outer wall of the steel ring 9, so that the outer wall of the supporting rod 2 is matched with the bending part to deform.
It should be noted that, the support steel ring 10 deforms, and only the position of the steel strand 8 in the hollow cavity of the support rod 2 is changed, but the radial fracture of the support rod 2 is prevented by the steel strand 8 in the support rod 2.
The one end that also can keep away from grafting steel ring 9 with the connecting rod is fixed and is close to the flexion position in support steel ring 10 outer wall, as shown in fig. 9, changes the position that the connecting rod is located support steel ring 10 outer wall, and support pole 2 radial outer wall can produce bending deformation because of the extrusion of soil body, and the steel strand 8 promotes the part that support steel ring 10 is close to the bending position to the position that is close to support steel ring 10 centre of a circle through the connecting rod of grafting steel ring 9 outer wall, and bending position both ends draw in, dimensional difference when compensating support steel ring 10 deformation to this cooperation support pole 2 outer wall produces deformation.
In summary, the connecting rod is arranged at any position of the outer wall of the supporting steel ring 10, so long as the connecting rod is beneficial to playing a role of matching with the deformation of the supporting rod 2 when suffering from extrusion force.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a flexible supporting construction of side slope digs, includes stock and a plurality of backplate (6), its characterized in that: the anchor rod comprises a drilling head (1) and a plurality of supporting rods (2), wherein external threads are arranged on the outer wall of one end of each supporting rod (2), a thread sleeve (3) is fixed on the other end of each supporting rod (2), one end external thread of each supporting rod (2) is in threaded connection with the thread sleeve (3) of the adjacent supporting rod (2), a thread groove in threaded connection with each supporting rod (2) is formed in the tail end of each drilling head (1), a plurality of spiral sheets are fixed on the outer wall of each drilling head (1), the supporting rods anchored into the deep soil are utilized to resist repeated expansion and contraction deformation of high-plasticity clay of a slope, and the supporting rods (2) are spliced together to form a whole with a long length and have a certain bending deformation buffer range in the axial direction deviating from the supporting rods (2);
a plurality of support plates (5) are fixed on the bottom end surface of the support plate (6), a positioning disc (4) is fixed between the end parts of the plurality of support plates (5), a threaded hole which is in threaded connection with the outer wall of a threaded sleeve (3) of the outermost support rod (2) far away from the drilling head (1) is axially formed in the center of the positioning disc (4), a plurality of positioning holes are axially formed in the edge position of the positioning disc (4), positioning steel bars are inserted into the positioning holes, and the end parts of the positioning steel bars are tamped into side slope soil;
the support rods (2) are axially provided with hollow cavities communicated with the threaded sleeves (3), a plurality of steel twisted ropes (8) are inserted into the hollow cavities in an inserting mode, and the initial ends of the steel twisted ropes (8) penetrate through the hollow cavities of all the support rods (2) and then extend into threaded grooves of the drilling head (1);
splice pieces are arranged among the plurality of steel twisted ropes (8);
the splicing piece comprises a supporting steel ring (10) and a plurality of splicing steel rings (9), wherein a plurality of connecting rods distributed along the radial direction of the supporting steel ring (10) are fixed on the outer wall of the supporting steel ring (10), the radial outer wall of the splicing steel ring (9) is fixedly connected with the end part of the connecting rod, and the splicing steel ring (9) is in sliding sleeve joint with the outer wall of a steel strand (8);
the outer wall of the supporting steel ring (10) is provided with a plurality of bending parts which are bent towards the center of the supporting steel ring (10).
2. The excavated side slope flexible support structure of claim 1, wherein: the major diameter of the spiral sheet of the drill bit (1) is larger than that of the supporting rod (2).
3. The excavated side slope flexible support structure of claim 1, wherein: the major diameter of the spiral sheet of the drill bit (1) is equal to the major diameter of the support rod (2).
4. The excavated side slope flexible support structure of claim 1, wherein: one end of the connecting rod, which is far away from the inserted steel ring (9), is fixed at the middle position of the bending part.
5. The excavated side slope flexible support structure of claim 1, wherein: one end of the connecting rod, which is far away from the inserted steel ring (9), is fixed at the position, close to the bending part, of the outer wall of the supporting steel ring (10).
6. The excavation side slope flexible support structure of any of claims 1-5, wherein: the two ends of the support plate (6) are bent downwards, so that the whole support plate (6) is of a semicircular structure.
7. The excavation side slope flexible support structure of claim 6, wherein: extension plates (7) distributed along the radial direction of the semicircular structure are fixed at two ends of the supporting plate (6) of the semicircular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310875273.XA CN116591196B (en) | 2023-07-17 | 2023-07-17 | Flexible supporting structure of excavation side slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310875273.XA CN116591196B (en) | 2023-07-17 | 2023-07-17 | Flexible supporting structure of excavation side slope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116591196A CN116591196A (en) | 2023-08-15 |
| CN116591196B true CN116591196B (en) | 2023-10-10 |
Family
ID=87594061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310875273.XA Active CN116591196B (en) | 2023-07-17 | 2023-07-17 | Flexible supporting structure of excavation side slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116591196B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101010660B1 (en) * | 2010-04-26 | 2011-01-24 | 주식회사 보강기술공사 | A groundcutted area reinforcement method for stability procure |
| CN105804098A (en) * | 2016-03-31 | 2016-07-27 | 浙江大学宁波理工学院 | Pre-applied force anchoring system for slope protection device and construction method thereof |
| CN209603157U (en) * | 2019-01-30 | 2019-11-08 | 安徽省第二建筑工程有限公司 | A kind of lattice girder prestress anchorage cable slope retaining |
| CN111945752A (en) * | 2020-08-18 | 2020-11-17 | 中南大学 | Frame anchor supporting construction suitable for native slope self-adaptation warp control expands |
| CN216739689U (en) * | 2022-01-19 | 2022-06-14 | 中北华宇建筑工程公司 | Recoverable soil nail |
| CN218407488U (en) * | 2021-12-21 | 2023-01-31 | 北京岩土工程勘察院有限公司 | Wedge seam type anchor rod |
| CN218508463U (en) * | 2022-11-18 | 2023-02-21 | 东华理工大学 | Assembled side slope prestressed anchorage cable supporting frame structure |
-
2023
- 2023-07-17 CN CN202310875273.XA patent/CN116591196B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101010660B1 (en) * | 2010-04-26 | 2011-01-24 | 주식회사 보강기술공사 | A groundcutted area reinforcement method for stability procure |
| CN105804098A (en) * | 2016-03-31 | 2016-07-27 | 浙江大学宁波理工学院 | Pre-applied force anchoring system for slope protection device and construction method thereof |
| CN209603157U (en) * | 2019-01-30 | 2019-11-08 | 安徽省第二建筑工程有限公司 | A kind of lattice girder prestress anchorage cable slope retaining |
| CN111945752A (en) * | 2020-08-18 | 2020-11-17 | 中南大学 | Frame anchor supporting construction suitable for native slope self-adaptation warp control expands |
| CN218407488U (en) * | 2021-12-21 | 2023-01-31 | 北京岩土工程勘察院有限公司 | Wedge seam type anchor rod |
| CN216739689U (en) * | 2022-01-19 | 2022-06-14 | 中北华宇建筑工程公司 | Recoverable soil nail |
| CN218508463U (en) * | 2022-11-18 | 2023-02-21 | 东华理工大学 | Assembled side slope prestressed anchorage cable supporting frame structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116591196A (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU587381B2 (en) | Laterally spreading pile | |
| CN102852533A (en) | High-strength three-dimensional support system of yielding type restriction concrete lagging jack | |
| CN209457012U (en) | A kind of building foundation foundation pit slight slope protective mooring rod | |
| CN211113663U (en) | Recoverable anchor rope fender pile combined supporting structure of anchor rope | |
| US12091830B2 (en) | Construction method and device for execution of a cast in-situ pile with multiple diameters decreasing with depth | |
| CN210597071U (en) | Collapse falling stone interception structure | |
| CN203230443U (en) | Novel case expanding reverse wedging type slip casting anchor rod | |
| CN116591196B (en) | Flexible supporting structure of excavation side slope | |
| CN201050303Y (en) | Self-dumping cone type spiral anchor drill bit | |
| CN107044295B (en) | Novel slip casting stock | |
| CN206752454U (en) | One kind perfusion embedded pile | |
| CN205116168U (en) | End grout static pressure tubular pile construction equipment is expanded in drilling | |
| CN112962615A (en) | Quick bearing diagonal equipment of assembled foundation ditch construction | |
| CN210395413U (en) | Steel construction stand column base reinforcement reinforced structure | |
| CN112031003A (en) | Support device with combined action of pile and soil and construction method thereof | |
| CN218437026U (en) | Ground anchor capable of being plugged and pulled quickly | |
| CN101289856A (en) | Tapered metal pile and construction method for installation thereof | |
| CN217419589U (en) | Pile-wall integrated supporting structure | |
| CN216689382U (en) | Basalt fiber anti-floating anchor rod | |
| CN214091927U (en) | Improved hollow grouting anchor rod | |
| CN210263072U (en) | High-pressure jet grouting anchor cable suitable for deep foundation pit support | |
| CN204982874U (en) | Anchor rope construction system of dismouting many times | |
| CN110952535B (en) | Steel pipe pile construction method | |
| CN211621555U (en) | Uplift pile prefabricated with uplift block | |
| CN107893673A (en) | A kind of anti-rock burst and the large deformation wing formula extrusion pressing type energy-absorption anchor rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |