CN113529756A - Slope emergency support device and method - Google Patents
Slope emergency support device and method Download PDFInfo
- Publication number
- CN113529756A CN113529756A CN202110955237.5A CN202110955237A CN113529756A CN 113529756 A CN113529756 A CN 113529756A CN 202110955237 A CN202110955237 A CN 202110955237A CN 113529756 A CN113529756 A CN 113529756A
- Authority
- CN
- China
- Prior art keywords
- ground beam
- anchor
- slope
- steel
- steel ground
- 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.)
- Pending
Links
Images
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
-
- 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
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)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of slope emergency rescue, and discloses a slope emergency rescue supporting device and method. The slope emergency rescue supporting device comprises a frame beam structure, a prestressed anchor cable structure and a slope surface shotcrete anchor structure. The frame beam structure comprises a first profile steel ground beam, a second profile steel ground beam and a concrete anchor pier. The first profile steel ground beam and the second profile steel ground beam are arranged at an included angle. The concrete anchor pier is arranged at the intersection of the first profile steel ground beam and the second profile steel ground beam. The second profile steel ground beam is clamped between the first profile steel ground beam and the concrete anchor pier. The prestressed anchor cable structure sequentially penetrates through the concrete anchor pier, the second profile steel ground beam and the first profile steel ground beam and extends into a slope structure. The slope surface shotcrete anchor structure is arranged between the first profile steel ground beam and the second profile steel ground beam and around the first profile steel ground beam and the second profile steel ground beam. According to the slope emergency rescue supporting device and method, secondary disturbance of a soil body caused by excavation of a foundation trench is avoided, the excavation time of the foundation trench is saved, the construction progress is accelerated, and the slope emergency rescue supporting device and method have the characteristics of being short in construction period, high in safety and good in economic benefit and are suitable for slope emergency rescue construction engineering.
Description
Technical Field
The invention relates to the technical field of slope emergency rescue, in particular to a slope emergency rescue supporting device and a supporting method.
Background
Under the complex geological conditions of mountain areas, the original side slopes or mountain bodies collapse and slide due to geological disasters or other reasons, so that the safety of nearby structures during operation is influenced. The local engineering environment in dangerous situations is severe, construction conditions are limited, meanwhile, the safety risk is extremely high, and secondary disasters on the side slope occur at any time, so that personal risks are brought to people in emergency. How to complete the management of the side slope disaster quickly in a limited space with less disturbance is a key point of emergency engineering.
In the prior art, the deep reinforcement method of the soil slope adopts a prestressed anchor cable (anchor rod) sash beam for reinforcement, and in the high slope reinforcement project, the prestressed anchor cable (anchor rod) has the following characteristics: 1) the stress is reliable; 2) the acting force can be uniformly distributed on the slope to be reinforced, the adaptability to the terrain and geological conditions is strong, and the construction conditions are easy to meet;
3) actively bearing force; 4) blasting and excavating are not needed, the slope body is not disturbed and damaged, and the mechanical property of the slope body can be maintained unchanged; 5) the construction speed is relatively fast.
However, for slope emergency projects, emergency time is urgent, dangerous situations need to be relieved as soon as possible, when a conventional anchor cable (anchor rod) sash beam is used for constructing a ground beam, foundation grooves need to be excavated firstly, reinforcing steel bars need to be bound, a template needs to be erected, ground beam concrete needs to be poured, the ground beam is tensioned after being subjected to equal strength, and construction time is long. Meanwhile, the interior of the conventional anchor cable (anchor rod) sash beam is greened by planting grass seeds, and the method is not suitable for rainwater to penetrate into the soil slope so as to avoid causing the damage caused by the sliding of the interface of the soil body of the slope and the basement bedrock.
Disclosure of Invention
Based on the problems, the invention aims to provide a side slope emergency support device and a support method, which are short in construction period, high in safety and suitable for side slope emergency construction engineering.
In order to achieve the purpose, the invention adopts the following technical scheme:
a slope emergency support device comprising:
the lattice beam structure comprises a first profile steel ground beam, a second profile steel ground beam and a concrete anchor pier, wherein the first profile steel ground beam and the second profile steel ground beam form an included angle, the concrete anchor pier is arranged at the intersection of the first profile steel ground beam and the second profile steel ground beam, and the second profile steel ground beam is clamped between the first profile steel ground beam and the concrete anchor pier;
the prestressed anchor cable structure sequentially penetrates through the concrete anchor pier, the second section steel ground beam and the first section steel ground beam and extends into the side slope structure;
and the slope surface spray anchor structure is arranged between the first profile steel ground beam and the second profile steel ground beam and around the first profile steel ground beam.
As a preferable scheme of the slope emergency support device, the first section steel ground beam comprises a first batten plate, a second batten plate, first i-beams and second i-beams, the first batten plate and the second batten plate are arranged at intervals, and the first i-beams and the second i-beams are arranged at intervals and are both clamped between the first batten plate and the second batten plate.
As a preferable scheme of the slope emergency support device, the second type steel ground beam comprises a third batten plate, a fourth batten plate, third i-steel and fourth i-steel, the third batten plate and the fourth batten plate are arranged at intervals, and the third i-steel and the fourth i-steel are arranged at intervals and are both clamped between the third batten plate and the fourth batten plate.
As a preferred scheme of the slope emergency support device, the slope spray anchor structure comprises first spray anchor concrete, second spray anchor concrete and a steel mesh, wherein the steel mesh is clamped between the first spray anchor concrete and the second spray anchor concrete.
As a preferred scheme of the slope emergency support device, the prestressed anchor cable structure comprises a steel sleeve, a grouting pipe and a plurality of steel strands, the steel sleeve sequentially penetrates through the concrete anchor pier, the second profile steel ground beam and the first profile steel ground beam and extends into the slope structure, the grouting pipe extends into the steel sleeve, and the plurality of steel strands are circumferentially arranged between the steel sleeve and the grouting pipe.
As a preferable scheme of the slope emergency support device, the prestressed anchor cable structure further comprises a tightening ring and an expansion ring, each steel strand comprises a free section and an anchoring section, the tightening ring is sleeved on the outer sides of the anchoring sections, and the anchoring sections are sleeved on the outer sides of the expansion ring.
As a preferred scheme of the slope emergency support device, the prestressed anchor cable structure further comprises a prestressed anchor head and an anchor backing plate, the prestressed anchor head is arranged at the end part of the steel strand, the steel strand penetrates through the anchor backing plate, and the anchor backing plate is arranged on the concrete anchor pier.
As a preferred scheme of the slope emergency support device, the prestressed anchor cable structure further comprises an anchor head inclined base plate, and the anchor head inclined base plate is arranged between the anchor base plate and the first profile steel ground beam and is positioned in the concrete anchor pier.
As a preferred scheme of the slope emergency support device, the prestressed anchor cable structure further comprises an anchor sealing head, the anchor sealing head is arranged on the anchor head inclined base plate, and the prestressed anchor head is arranged in the anchor sealing head.
A side slope emergency support method adopts the side slope emergency support device for supporting and comprises the following steps:
s1, brushing slopes and reducing loads on the slope where the disaster occurs so as to level the slope;
s2, finishing the sash beam structure and the prestressed anchor cable structure in the back field;
s3, erecting a scaffold platform on site, drilling holes by using a drilling machine, enabling a steel sleeve to pass through the slope crushing section in a follow-up manner, installing a prestressed anchor cable structure after anchor cable holes are constructed, and simultaneously performing anchor cable pipeline grouting treatment;
s4, completing the first construction of shotcrete on the slope surface, installing a reinforcing mesh sheet, and completing the second construction of shotcrete;
s5, installing a first section steel ground beam in advance by manually matching with a truck crane, installing a second section steel ground beam behind the first section steel ground beam, welding the second section steel ground beam and the first section steel ground beam, welding an anchor head inclined base plate at the anchor cable hole position, and installing an anchor base plate and a prestressed anchor head;
s6, constructing a concrete anchor pier at the tensioning position of the anchor cable, and simultaneously filling concrete in gaps among the first profile steel ground beam, the second profile steel ground beam and the slope surface;
s7, tensioning the prestressed anchor cable structure according to the design force value and completing construction of an anchor sealing head;
and S8, respectively erecting formworks on two sides of the first section steel ground beam and the second section steel ground beam, and performing edge-wrapped concrete construction.
The invention has the beneficial effects that:
the slope emergency support device and the support method provided by the invention have the characteristics of short construction period, high safety and good economic benefit, are suitable for slope emergency construction engineering, inherit various advantages of conventional prestressed anchor cable (anchor rod) sash beam reinforcement, and innovatively invent the mode that an I-shaped steel beam is adopted as a ground beam main body on the basis, so that the secondary disturbance of a soil body caused by foundation trench excavation is avoided, the foundation trench excavation time is saved, the progress of sash beam structure construction is accelerated, meanwhile, a section steel beam is used as a tensioning stress main body, the time of carrying out prestress after equal strength of concrete (equal strength time is about 7 days) is greatly shortened, and valuable time is won for the tensioning engineering; inside assisting with domatic spray anchor concrete protection at sash beam structure, avoid the rainwater to invade the side slope once more, spray anchor concrete simultaneously and domatic formation is whole, strengthens domatic intensity, is absorbed into in the soil property side slope when preventing shaped steel ground beam stretch-draw prestressing force construction, guarantees that stretch-draw prestressing force value targets in place for the reinforcing effect is good.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a slope emergency support device provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a first section steel ground beam in the slope emergency support device provided by the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a second type steel ground beam in the slope emergency support device according to the embodiment of the invention;
fig. 4 is a schematic structural diagram of a prestressed anchor cable structure in a slope emergency support device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a prestressed anchor cable structure and a slope anchor structure in the slope emergency support device according to the embodiment of the present invention.
In the figure:
1-sash beam structure; 2-prestressed anchor cable structure; 3-slope spray anchor structure;
11-a first section steel ground beam; 12-a second type steel ground beam; 13-concrete anchor piers;
111-a first gusset plate; 112-second gusset plate; 113-a first i-beam; 114-a second i-beam;
121-third gusset plate; 122-fourth gusset plate; 123-third I-steel; 124-fourth I-steel;
21-steel casing pipe; 22-grouting pipe; 23-steel strand wires; 24-a compression ring; 25-an expansion ring; 26-prestressed anchor
A head; 27-anchor backing plate; 28-anchor head inclined backing plate; 29-sealing the anchor head;
31-first shotcrete; 32-second shotcrete; 33-reinforcing mesh;
100-slope structure.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, the present embodiment provides a slope emergency support device, which has the characteristics of short construction period, high safety and good economic benefit, and is suitable for slope emergency construction engineering, and the slope emergency support device includes a lattice beam structure 1, a prestressed anchor cable structure 2 and a slope spray anchor structure 3.
As shown in fig. 1, the lattice beam structure 1 includes a first section steel ground beam 11, a second section steel ground beam 12 and a concrete anchor pier 13, the first section steel ground beam 11 and the second section steel ground beam 12 are arranged at an included angle, the concrete anchor pier 13 is arranged at the intersection of the first section steel ground beam 11 and the second section steel ground beam 12, and the second section steel ground beam 12 is clamped between the first section steel ground beam 11 and the concrete anchor pier 13. In this embodiment, the first profile steel ground beam 11 is perpendicular to the second profile steel ground beam 12, and the first profile steel ground beam 11 and the second profile steel ground beam 12 are both provided with a plurality of.
As shown in fig. 2, the first steel ground beam 11 includes a first batten plate 111, a second batten plate 112, a first i-beam 113 and a second i-beam 114, the first batten plate 111 and the second batten plate 112 are arranged at intervals, and the first i-beam 113 and the second i-beam 114 are arranged at intervals and are both clamped between the first batten plate 111 and the second batten plate 112. The first i-beam 113 and the second i-beam 114 are respectively welded and connected with the first batten plate 111 and the second batten plate 112 to form a whole, so that the first steel ground beam 11 is manufactured, and a space between the first i-beam 113 and the second i-beam 114 is used for penetrating through the tension steel strand 23.
As shown in fig. 3, the second type steel ground beam 12 includes a third batten plate 121, a fourth batten plate 122, a third i-beam 123 and a fourth i-beam 124, the third batten plate 121 and the fourth batten plate 122 are arranged at intervals, and the third i-beam 123 and the fourth i-beam 124 are arranged at intervals and are both clamped between the third batten plate 121 and the fourth batten plate 122. The third i-steel 123 and the fourth i-steel 124 are respectively welded and connected with the third batten plate 121 and the fourth batten plate 122 to form a whole, so that the second type steel ground beam 12 is manufactured, and a space between the third i-steel 123 and the fourth i-steel 124 is used for penetrating through the tension steel strand 23.
The prestressed anchor cable structure 2 sequentially penetrates through the concrete anchor pier 13, the second section steel ground beam 12 and the first section steel ground beam 11 and extends into the slope structure 100. The side slope structure 100 is reinforced through the prestressed anchor cable structure 2, the stress is reliable, the acting force can be uniformly distributed on the side slope needing to be reinforced, the adaptability to the terrain and geological conditions is strong, the construction condition is easy to meet, the active stress is achieved, blasting excavation is not needed, disturbance and damage are not generated on the slope body, the mechanical property of the slope body can be kept unchanged, and the construction speed is relatively high.
As shown in fig. 4, the prestressed anchor cable structure 2 includes a steel sleeve 21, a grouting pipe 22 and a plurality of steel strands 23, the steel sleeve 21 sequentially penetrates through the concrete anchor pier 13, the second type steel ground beam 12 and the first type steel ground beam 11 and extends into the slope structure 100, the grouting pipe 22 extends into the steel sleeve 21, and the plurality of steel strands 23 are circumferentially arranged between the steel sleeve 21 and the grouting pipe 22. The cement slurry is injected into the steel sleeve 21 through the grouting pipe 22, so that the steel strand 23 can be firmly fixed in the rock to form a whole, and the tension is ensured.
For improving prestressed anchorage cable structure 2's grip, prestressed anchorage cable structure 2 still includes to contract ring 24 and expansion ring 25, and every steel strand wires 23 all includes free section and anchor section, contracts the outside that a plurality of anchor sections were located to ring 24 cover, and the outside of expansion ring 25 is located to a plurality of anchor section covers. The tightening rings 24 and the expansion rings 25 are arranged in a plurality, and the tightening rings 24 and the expansion rings 25 are alternately arranged and spaced to prolong the length of the steel strand 23 in contact with cement slurry.
The prestressed anchor cable structure 2 further comprises a prestressed anchor head 26 and an anchor backing plate 27, wherein the prestressed anchor head 26 is arranged at the end part of the steel strand 23, the steel strand 23 penetrates through the anchor backing plate 27, and the anchor backing plate 27 is arranged on the concrete anchor pier 13. Specifically, the prestressed anchor cable structure 2 further comprises an anchor head inclined backing plate 28, and the anchor head inclined backing plate 28 is arranged between the anchor backing plate 27 and the first section steel ground beam 11 and is positioned in the concrete anchor pier 13. More specifically, the prestressed anchor rope structure 2 further comprises an anchor sealing head 29, wherein the anchor sealing head 29 is arranged on the anchor head inclined backing plate 28, and the prestressed anchor head 26 is arranged in the anchor sealing head 29.
Domatic spray anchor structure 3 sets up between first shaped steel grade beam 11 and second shaped steel grade beam 12 and around, specifically, forms the net space between first shaped steel grade beam 11 and the second shaped steel grade beam 12, and domatic spray anchor structure 3 sets up in the net space and the periphery. As shown in fig. 5, the slope shotcrete structure 3 includes first shotcrete 31, second shotcrete 32 and a steel mesh 33, and the steel mesh 33 is sandwiched between the first shotcrete 31 and the second shotcrete 32.
The side slope emergency support device provided by the embodiment has the characteristics of short construction period, high safety and good economic benefit, is suitable for side slope emergency construction engineering, inherits various advantages of conventional prestressed anchor rope (anchor rod) sash beam reinforcement, innovatively invents on the basis of the advantages by adopting an I-shaped steel beam as a ground beam main body, avoids soil body secondary disturbance caused by foundation trench excavation, saves foundation trench excavation time, accelerates the construction progress of the sash beam structure 1, simultaneously takes a section steel beam as a tensioning stress main body, greatly shortens the time of tensioning prestress after concrete is of equal strength, and wins precious time for emergency engineering; inside and assisting domatic shotcrete protection all around at sash beam structure 1, avoid the rainwater to invade the side slope once more, the domatic formation of shotcrete simultaneously is whole, strengthens domatic intensity, is absorbed into the soil property side slope when preventing shaped steel ground beam stretch-draw prestressing force construction, guarantees that stretch-draw prestressing force value targets in place for the reinforcing effect is good.
The slope emergency support device that this embodiment provided has following advantage:
(1) the construction method of the conventional prestressed anchor cable frame beam is simplified, the operability is strong, the I-shaped steel beam is used as the ground beam main body, secondary disturbance soil body excavation of a foundation trench is avoided, meanwhile, foundation trench excavation time and steel bar binding time are saved, the construction of the sash beam structure 1 is accelerated, and the construction period of the whole emergency engineering is shortened;
(2) according to the construction method, the frame beam structure 1 is constructed and installed, and after the concrete anchor piers 13 are poured, the anchor cables are constructed to be prestressed and tensioned. The invention takes the section steel beam as a main body for tensioning stress, improves the bearing capacity of the ground beam, and simultaneously takes about 7 days to perform prestress construction compared with the strength of the conventional concrete anchor cable frame beam, the prestress construction can be performed in about 2 to 3 days without waiting for the concrete to completely reach the design strength, thereby greatly shortening the time for tensioning the prestress after the concrete reaches the design strength;
(3) the slope surface shotcrete protection is assisted in and around the sash beam structure 1, so that rainwater is prevented from invading the slope again to cause landslide exacerbation, meanwhile, the shotcrete enables the slope surface to form a whole body, the slope surface strength is enhanced, the section steel ground beam is prevented from being sunk into a soil slope during stretch-draw prestress construction, the stretch-draw prestress value is ensured to be in place, and the reinforcement effect is better;
(4) the steel ground beam is wrapped with concrete to play a role in corrosion prevention, and a temporary structure is combined with a permanent structure.
The embodiment also provides a side slope emergency support method, which adopts the side slope emergency support device for supporting and comprises the following steps:
s1, brushing slopes and reducing loads on the slope where the disaster occurs so as to level the slope;
s2, finishing the lattice beam structure 1 and the prestressed anchor cable structure 2 in the post-processing;
s3, erecting a scaffold platform on site, drilling holes by using a drilling machine, enabling the steel sleeve 21 to pass through the slope crushing section in a follow-up manner, installing the prestressed anchor cable structure 2 after anchor cable holes are constructed, and simultaneously performing anchor cable pipeline grouting treatment;
s4, completing the first construction of the shotcrete 31 on the slope surface, installing the reinforcing mesh 33, and completing the second construction of the shotcrete 32;
s5, installing a first section steel ground beam 11 in advance by manually matching with a truck crane, installing a second section steel ground beam 12 behind the first section steel ground beam, welding the second section steel ground beam 12 and the first section steel ground beam 11, welding an anchor head inclined base plate 28 at the anchor cable hole position, and installing an anchor base plate 27 and a prestressed anchor head 26;
s6, constructing a concrete anchor pier 13 at the anchor cable tensioning position, and simultaneously filling concrete in gaps among the first profile steel ground beam 11, the second profile steel ground beam 12 and the slope surface to ensure the tensioning stress;
s7, tensioning the prestressed anchor cable structure 2 according to the design force value and completing construction of the anchor sealing head 29, ensuring that the profile steel ground beam and the shotcrete slope surface are put into use, and completing slope surface danger removal;
s8, respectively erecting formworks on two sides of the first section steel ground beam 11 and the second section steel ground beam 12, performing edge-wrapped concrete construction, playing a role in section steel corrosion prevention, and combining a temporary structure with a permanent structure.
The slope emergency support method provided by the embodiment has the following advantages:
(1) the method is simple in construction, innovatively adopts the I-shaped steel beam as the ground beam main body, avoids secondary disturbance of the soil body caused by excavation of the foundation trench, and prevents the risk of slope landslide again;
(2) the section steel beam is used as a main body for tensioning stress, so that the excavation time of a foundation trench is saved, the time for tensioning prestress after concrete is of equal strength is greatly shortened, the construction progress of the sash beam structure 1 is accelerated, precious time is won for emergency engineering, and the engineering property of the emergency engineering is met;
(3) slope surface spray anchor concrete protection is assisted in and around the sash beam structure 1, so that rainwater is prevented from invading the side slope again, and dangerous situations are prevented from happening again after the completion of emergency repair of the side slope;
(4) compared with the conventional slope control method, the method greatly shortens the construction period, reduces the labor cost and the time cost, simultaneously eliminates the dangerous case at the fastest speed, enables nearby affected structures to be put into operation again as soon as possible, and reduces economic loss;
(5) by the successful application of the method, the rescue time is won for the whole engineering, the safety risk of the side slope is eliminated, a good environment is created for the subsequent repair of other structures, an economic effect is created for the rescue engineering, and the adverse social influence is reduced.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a side slope emergency support device which characterized in that includes:
the sash beam structure (1) comprises a first profile steel ground beam (11), a second profile steel ground beam (12) and a concrete anchor pier (13), wherein the first profile steel ground beam (11) and the second profile steel ground beam (12) are arranged at an included angle, the concrete anchor pier (13) is arranged at the intersection of the first profile steel ground beam (11) and the second profile steel ground beam (12), and the second profile steel ground beam (12) is clamped between the first profile steel ground beam (11) and the concrete anchor pier (13);
the prestressed anchor cable structure (2) sequentially penetrates through the concrete anchor pier (13), the second section steel ground beam (12) and the first section steel ground beam (11) and extends into the side slope structure (100);
and the slope spray anchor structure (3) is arranged between the first profile steel ground beam (11) and the second profile steel ground beam (12) and around the first profile steel ground beam.
2. The side slope emergency support device according to claim 1, wherein the first section steel ground beam (11) comprises a first batten plate (111), a second batten plate (112), a first I-shaped steel (113) and a second I-shaped steel (114), the first batten plate (111) and the second batten plate (112) are arranged at intervals, and the first I-shaped steel (113) and the second I-shaped steel (114) are arranged at intervals and are respectively clamped between the first batten plate (111) and the second batten plate (112).
3. The side slope emergency support device according to claim 1, wherein the second type steel ground beam (12) comprises a third batten plate (121), a fourth batten plate (122), a third I-shaped steel (123) and a fourth I-shaped steel (124), the third batten plate (121) and the fourth batten plate (122) are arranged at intervals, and the third I-shaped steel (123) and the fourth I-shaped steel (124) are arranged at intervals and are both clamped between the third batten plate (121) and the fourth batten plate (122).
4. The slope emergency support device according to claim 1, wherein the slope surface shotcrete structure (3) comprises first shotcrete (31), second shotcrete (32) and a steel mesh (33), and the steel mesh (33) is clamped between the first shotcrete (31) and the second shotcrete (32).
5. The slope emergency support device according to any one of claims 1 to 4, wherein the prestressed anchor cable structure (2) comprises a steel sleeve (21), a grouting pipe (22) and a plurality of steel strands (23), the steel sleeve (21) penetrates through the concrete anchor pier (13), the second type steel ground beam (12) and the first type steel ground beam (11) in sequence and extends into the slope structure (100), the grouting pipe (22) extends into the steel sleeve (21), and the plurality of steel strands (23) are circumferentially arranged between the steel sleeve (21) and the grouting pipe (22).
6. The slope emergency support device according to claim 5, wherein the prestressed anchor cable structure (2) further comprises a tightening ring (24) and an expansion ring (25), each of the steel strands (23) comprises a free section and an anchoring section, the tightening ring (24) is sleeved outside the plurality of anchoring sections, and the plurality of anchoring sections are sleeved outside the expansion ring (25).
7. The slope emergency support device according to claim 5, wherein the prestressed anchor cable structure (2) further comprises a prestressed anchor head (26) and an anchor plate (27), the prestressed anchor head (26) is arranged at the end of the steel strand (23), the steel strand (23) penetrates through the anchor plate (27), and the anchor plate (27) is arranged on the concrete anchor pier (13).
8. The slope emergency support device according to claim 7, wherein the prestressed anchor cable structure (2) further comprises an anchor head inclined backing plate (28), the anchor head inclined backing plate (28) is arranged between the anchor backing plate (27) and the first section steel ground beam (11) and is positioned in the concrete anchor pier (13).
9. The slope emergency support device according to claim 8, wherein the prestressed anchor cable structure (2) further comprises an anchor sealing head (29), the anchor sealing head (29) is arranged on the anchor sealing head inclined backing plate (28), and the prestressed anchor head (26) is arranged in the anchor sealing head (29).
10. A slope emergency support method, characterized in that the slope emergency support device according to any one of claims 1-9 is used for supporting, comprising the following steps:
s1, brushing slopes and reducing loads on the slope where the disaster occurs so as to level the slope;
s2, finishing the lattice beam structure (1) and the prestressed anchor cable structure (2) in the post-processing;
s3, erecting a scaffold platform on site, drilling holes by using a drilling machine, enabling a steel sleeve (21) to pass through the slope crushing section in a follow-up manner, installing a prestressed anchor cable structure (2) after anchor cable holes are constructed, and simultaneously carrying out anchor cable pipeline grouting treatment;
s4, completing the first construction of shotcrete (31) on the slope surface, installing a reinforcing mesh (33) and completing the second construction of shotcrete (32);
s5, installing a first section steel ground beam (11) in advance by adopting manual cooperation with a truck crane, then installing a second section steel ground beam (12), welding the second section steel ground beam (12) and the first section steel ground beam (11) to be connected, welding an anchor head inclined base plate (28) at the anchor cable hole position, and then installing an anchor base plate (27) and a pre-stressed anchor head (26);
s6, constructing a concrete anchor pier (13) at the tensioning position of the anchor cable, and simultaneously filling concrete in gaps among the first profile steel ground beam (11), the second profile steel ground beam (12) and the slope surface;
s7, stretching the prestressed anchor cable structure (2) according to the design force value and completing construction of an anchor sealing head (29);
and S8, respectively erecting formworks at two sides of the first section steel ground beam (11) and the second section steel ground beam (12) for edge-wrapped concrete construction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110955237.5A CN113529756A (en) | 2021-08-19 | 2021-08-19 | Slope emergency support device and method |
| PCT/CN2022/104924 WO2023020159A1 (en) | 2021-08-19 | 2022-07-11 | Side slope emergency rescue support apparatus and support method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110955237.5A CN113529756A (en) | 2021-08-19 | 2021-08-19 | Slope emergency support device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113529756A true CN113529756A (en) | 2021-10-22 |
Family
ID=78091796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110955237.5A Pending CN113529756A (en) | 2021-08-19 | 2021-08-19 | Slope emergency support device and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113529756A (en) |
| WO (1) | WO2023020159A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411767A (en) * | 2021-11-30 | 2022-04-29 | 中铁二院工程集团有限责任公司 | Construction method of loose deformation slope reinforcement structure |
| WO2023020159A1 (en) * | 2021-08-19 | 2023-02-23 | 中交路桥华东工程有限公司 | Side slope emergency rescue support apparatus and support method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2881001B1 (en) * | 1998-04-30 | 1999-04-12 | 建設基礎エンジニアリング株式会社 | Earth retaining wall construction method for cutting land mountain |
| JP2006291466A (en) * | 2005-04-06 | 2006-10-26 | Kobe Steel Ltd | Nipping and holding mechanism of slope bearing frame |
| CN106320346B (en) * | 2016-08-24 | 2018-10-12 | 陕西建工第六建设集团有限公司 | Campshed adds anchor cable grouting behind shaft or drift lining deep foundation pit supporting construction method |
| CN210439306U (en) * | 2019-05-31 | 2020-05-01 | 广西建工集团建筑工程总承包有限公司 | Slope prestressed anchorage cable frame supporting construction |
| CN112095633A (en) * | 2020-08-26 | 2020-12-18 | 浙江佳途勘测设计有限公司 | Construction process of die-free concrete beam |
| CN216041225U (en) * | 2021-08-19 | 2022-03-15 | 中交路桥华东工程有限公司 | Slope emergency support device |
| CN113529756A (en) * | 2021-08-19 | 2021-10-22 | 中交路桥华东工程有限公司 | Slope emergency support device and method |
-
2021
- 2021-08-19 CN CN202110955237.5A patent/CN113529756A/en active Pending
-
2022
- 2022-07-11 WO PCT/CN2022/104924 patent/WO2023020159A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023020159A1 (en) * | 2021-08-19 | 2023-02-23 | 中交路桥华东工程有限公司 | Side slope emergency rescue support apparatus and support method |
| CN114411767A (en) * | 2021-11-30 | 2022-04-29 | 中铁二院工程集团有限责任公司 | Construction method of loose deformation slope reinforcement structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023020159A1 (en) | 2023-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102031784B (en) | Slope protection pile pouring and cable bolting construction method for deep foundation pit | |
| CN106498950B (en) | Anchor head is placed in the implementation method of the Pile-Anchor Supporting for Deep Excavation system of pile body | |
| CN106968260A (en) | The device and method come down for Strengthening Tunnel mountain body entrance | |
| CN113529756A (en) | Slope emergency support device and method | |
| CN111560962A (en) | Backfill area foundation pit supporting structure and construction method thereof | |
| CN111535177A (en) | Rock anchor anchorage composed of prestressed group anchor and surrounding rock and construction method thereof | |
| CN108385715A (en) | A kind of assembled stake arch combination retaining wall and its construction method | |
| CN112301887A (en) | Suspension bridge main cable anchoring system under bedrock deep-buried condition and construction method | |
| CN110735436A (en) | cutting rock slope reinforced structure | |
| CN115012426A (en) | Steel pipe pile support and construction method for existing telegraph pole during four-cycle full excavation | |
| CN206408630U (en) | Anchor head is placed in the Pile-Anchor Supporting for Deep Excavation system of pile body | |
| CN106948347B (en) | Pile pulling method and pile pulling system | |
| CN216041225U (en) | Slope emergency support device | |
| CN210766754U (en) | Recoverable prestressed anchorage cable stock supporting construction | |
| CN113417300B (en) | Slope support system and construction method thereof | |
| CN110004927A (en) | Prestressing force miniature pile construction method | |
| CN104863613B (en) | Rocky stratum tunneling underground structure flash joist anchor draws just branch structure and construction method | |
| CN209211459U (en) | Skirt piles are gone along with sb. to guard him in a kind of buried subway station PBA | |
| CN113089687A (en) | Slope protection method and device | |
| CN111218938A (en) | Excavation construction method for foundation pit above existing tunnel | |
| CN110318419B (en) | Construction method of one-lining door opening support of underpass type pipe gallery | |
| CN212506313U (en) | Combined foundation pit supporting structure | |
| CN111893829A (en) | Protective structure of roadbed | |
| CN111809521A (en) | Tunnel type anchorage structure for cable crane and construction method thereof | |
| CN205502028U (en) | Slope protection structure |
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 |