CN111576434A - Landslide prevention device for deep foundation pit and using method thereof - Google Patents
Landslide prevention device for deep foundation pit and using method thereof Download PDFInfo
- Publication number
- CN111576434A CN111576434A CN202010297503.5A CN202010297503A CN111576434A CN 111576434 A CN111576434 A CN 111576434A CN 202010297503 A CN202010297503 A CN 202010297503A CN 111576434 A CN111576434 A CN 111576434A
- Authority
- CN
- China
- Prior art keywords
- slope
- fixed
- abutting
- piece
- concrete
- 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.)
- Granted
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
- E02D17/02—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
- 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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
-
- 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
-
- 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)
- Mining & Mineral Resources (AREA)
- Structural Engineering (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 relates to the technical field of landslide construction, in particular to an anti-landslide device for a deep foundation pit and a using method thereof, wherein the anti-landslide device is applied to a fixed slope, the slope comprises an inclined plane, threaded deep holes are vertically arranged on the inclined plane at equal intervals, a channel is arranged at the bottom end of the slope, the anti-landslide device comprises a base, a vibration absorption fastener and a covering plate, the base is coaxially arranged in the channel, the vibration absorption fastener comprises a fixing head, a fastening steel rod, a concrete threaded column, a yielding buffer piece and a fixed abutting piece, the fixing head is arranged in the threaded deep hole, and the concrete threaded column is formed by pouring into the threaded deep hole in a working state; the fixed abutting part is coaxially arranged at the outlet of the threaded deep hole, the outer end of the concrete threaded column abuts against the other abutting end of the fixed abutting part, the cladding plate is arranged on the slope surface, the fastening steel rod penetrates through the cladding plate and is elastically and fixedly connected with the cladding plate through the fixed abutting part, the bottom end of the cladding plate abuts against the top end of the base, and the device is stable in structure, capable of effectively preventing landslide soil from sliding and capable of eliminating vibration force.
Description
Technical Field
The invention relates to the technical field of landslide construction, in particular to a landslide prevention device for a deep foundation pit and a using method of the landslide prevention device.
Background
The deep foundation pit refers to a project which has an excavation depth of more than 5 meters (including 5 meters), or has a depth of less than 5 meters, but has particularly complicated geological conditions, surrounding environments and underground pipelines. The foundation pit engineering mainly comprises foundation pit supporting system design and construction and earthwork excavation, and is a system engineering with strong comprehensiveness. It requires close cooperation between geotechnical engineering and structural engineering technicians. The foundation pit supporting system is a temporary structure and is not needed after the construction of underground engineering is finished. The foundation pit and the foundation trench are used for building the foundation of the building, and are different in plane shape; the foundation trench is long and sometimes longer, the foundation trench refers to a foundation trench with a base area within 27 square meters (not 20) and a base long side less than three times the short side. The bottom area is within 27 square meters (not 20), the long side of the bottom is less than three times of the short side, the excavation depth exceeds 5 meters (including 5 meters) or more than three layers (including three layers) of the basement, or the depth does not exceed 5 meters, but the geological conditions, the surrounding environment and underground pipelines are particularly complicated. In recent years, with the rapid development of the building industry in China, more and more slope projects are involved in the building construction process, in the deep foundation pit slope construction process, an anchor cable is often adopted to organically combine a foundation and a slope surface together, a landslide refers to a natural phenomenon that a soil body or a rock body on the slope slides downwards integrally or dispersedly along the slope along a certain weak surface or a weak area under the action of gravity under the influence of factors such as river erosion, underground water activity, rainwater soaking, earthquake, manual slope cutting and the like, and the existing landslide prevention construction process is complicated in operation and poor in stability.
Chinese patent CN201810933303.7 discloses a construction process for slope building landslide prevention, which comprises the following construction steps: s1, cleaning the slope of the foundation layer: cleaning up sundries on the surface of the foundation layer, and compacting the surface of the foundation layer tightly; s2 slope face opening: forming a plurality of anchoring deep holes in the foundation layer; s3 preparation of a steel bar mesh cage: manufacturing a strip-shaped steel bar mesh cage matched with the anchoring deep hole by using a plurality of steel bars in a welding mode, and placing the steel bar mesh cage in the anchoring deep hole; s4 casting: pouring a concrete structure into the anchoring deep hole for pouring so that the reinforcement cage is fastened with the anchoring deep hole; s5: after pouring is finished, secondary grouting compaction is carried out on the hollow position generated by the concrete in the anchoring hole; s6 pouring a slope base: and (4) carrying out concrete pouring on the slope surface of the foundation layer until the concrete is poured to the thickness of the end part of the anchoring deep hole extending out of the reinforcement cage, and manufacturing a slope base body with an angle.
The anti-skid structure of the construction process is not stable enough and has no vibration resistance.
Disclosure of Invention
The invention aims to solve the technical problem of providing an anti-landslide device for a deep foundation pit and a using method thereof.
In order to solve the technical problems, the invention provides the following technical scheme:
an anti-landslide device for a deep foundation pit is applied to a fixed slope, the slope comprises an inclined plane, threaded deep holes are vertically arranged on the inclined plane at equal intervals, a channel is arranged at the bottom end of the slope, the anti-landslide device comprises a base, a vibration absorption fastener and a covering plate, the base is coaxially arranged in the channel, the vibration absorption fastener comprises a fixing head, a fastening steel rod, a concrete threaded column, a yielding buffer piece and a fixed abutting piece, the fastening steel rod is uniformly distributed at one end of the fixing head along the axial direction, the fixing head is coaxially arranged at the deepest end of the threaded deep hole, and the concrete threaded column is formed by pouring into the threaded deep hole in a working state; the fixed abutting part is coaxially arranged at the outlet of the threaded deep hole, the abutting end of the fixed abutting part is flush with the slope surface, the outer end of the concrete threaded column abuts against the other abutting end of the fixed abutting part, the cladding plate is arranged on the slope surface, the fastening steel rod penetrates through the cladding plate and is elastically and fixedly connected with the cladding plate through the fixed abutting part, and the bottom end of the cladding plate abuts against the top end of the base.
Preferably, the yielding buffer piece comprises a fixed cylinder, a shearing head, a pressing sheet and a second fixed ring, through holes and a first abutting ring are coaxially arranged at two ends of the fixed cylinder respectively, the fixed cylinder is coaxially arranged in the threaded deep hole, the first abutting ring is flush with the inclined plane, the second fixed ring is coaxially arranged in the fixed cylinder at equal intervals, a placing groove is axially arranged at one end of the second fixed ring, a first fixed ring is arranged on the outer circumferential surface of the pressing sheet, the pressing sheet is arranged on the placing groove through the first fixed ring, the pressing sheet is coaxially arranged with the yielding hole and is uniformly provided with strip-shaped ports along the radial direction, the shearing head and the through holes are coaxially arranged in a sliding mode, one end of the shearing head abuts against one side of the yielding sheet, and the fastening steel rod penetrates through the strip-shaped ports and abuts against the outer end of the concrete threaded column at.
Preferably, the cutting head is in a truncated cone shape, and the narrow end abuts against one side of the pressure-relief sheet.
Preferably, fixed butt piece is including fixed column, second butt circle and the tensile piece of elasticity, and the fixed column runs through the apron outer end perpendicularly and the coaxial fixed connection of second butt circle, and the tensile coaxial setting of elasticity leaks fastening steel pole one end and butt in the apron outside outward.
Preferably, the elastic stretching piece comprises a spring, a limiting ring and a fixing nut, one side of the limiting ring and one side of the fixing nut are coaxially welded at the outer leakage end of the fastening steel rod, the spring is coaxially sleeved on the fastening steel rod, and two ends of the spring are respectively abutted to the bottom end of the limiting ring and the outer side of the covering plate.
Preferably, the top end of the base is provided with a right-angle abutting head close to the inclined plane side, and the bottom end of the shroud plate abuts against the top end of the right-angle abutting head.
Preferably, the top end of the base is also provided with a drainage channel.
Preferably, the protective cover is further included, and the protective cover is coaxially sleeved at the outer end.
Preferably, the distance between each longitudinal row of shock absorbing fasteners on the slope is more than one meter and less than two meters.
An anti-landslide device for a deep foundation pit and a using method thereof comprise the following steps: the first step is as follows: cleaning the slope of the foundation layer: cleaning up sundries on the surface of the foundation layer, and compacting the surface of the foundation layer tightly;
the second step is that: slotting the bottom end of the slope, coaxially placing the base in the threaded deep hole, and enabling the right-angle abutting joint to face the slope surface;
the third step: and (3) forming a threaded deep hole on the slope surface: a plurality of anchoring thread deep holes are vertically formed in the slope surface;
the fourth step: coaxially placing a fixing head of a pre-fixed fastening steel rod at the innermost end of the channel, so that the other end of the fastening steel rod extends out of the threaded deep hole;
the fifth step: injecting a certain amount of concrete into the threaded deep hole but not filling the threaded deep hole;
and a sixth step: after the concrete is solidified and formed into the concrete threaded column, enabling the fastening steel rod to penetrate through the yielding buffer piece to be coaxially placed in the threaded deep hole, and enabling the outer end of the concrete threaded column to abut against the buffer end of the yielding buffer piece;
the seventh step: covering the cladding plate on the slope surface, enabling the bottom end of the cladding plate to be abutted against the right-angle abutting head and enabling the fastening steel rod to penetrate through the cladding plate;
eighth step: the fastening steel rod and the cover plate are elastically and tightly connected through the fixed abutting piece.
Compared with the prior art, the invention has the beneficial effects that:
the first step is as follows: cleaning the slope of the foundation layer: cleaning up sundries on the surface of the foundation layer, and compacting the surface of the foundation layer tightly; the soil body or rock mass on the slope of the deep foundation pit is influenced by factors such as rainwater soaking, earthquake, artificial slope cutting and the like, under the action of gravity, the natural phenomenon that the soil body or rock mass slides downwards along the slope integrally or dispersedly along a certain weak surface or a weak zone is caused, the surface soil is loose, the slope of the foundation layer is in a loose state before being processed, if an anti-skid slope device is directly installed, the installation structure is not stable enough, and after the slope is compacted tightly, the slope installation vibration absorption fastening piece is more stable and is not easy to slide;
the second step is that: slotting the bottom end of the slope, coaxially placing the base in the threaded deep hole, and enabling the right-angle abutting joint to face the slope surface; the right-angle butt joint head is used for butting the bottom end of the covering plate, so that the structure of the covering plate is more stable when the covering plate covers the slope, the bottom end of the covering plate is not easy to slide off when being butted on the right-angle butt joint head, and is convenient for fastening the steel rod and the covering plate to be fixedly connected, and the drainage groove is used for guiding rainwater on the covering plate, so that the rainwater is not easy to accumulate;
the third step: and (3) forming a threaded deep hole on the slope: a plurality of anchoring thread deep holes are vertically formed in the slope surface; the anchoring thread deep hole is used for fixedly mounting a vibration absorption fastener, so that the shroud plate can be abutted against the inclined plane to enable slope soil not to slide under the impact of rainwater easily, and the thread deep hole is convenient for pouring the thread type straight column, so that the engaging force between the thread type straight column and the soil layer is increased;
the fourth step: coaxially placing a fixing head of a pre-fixed fastening steel rod at the innermost end of the channel, so that the other end of the fastening steel rod extends out of the threaded deep hole; the fastening steel rod is used for connecting the shroud plate and the fixing head, so that the shroud plate can be attached to the inclined plane;
the fifth step: injecting a certain amount of concrete into the threaded deep hole but not filling the threaded deep hole; the thread deep hole is not filled, so that the fixed abutting piece is convenient to install, and the concrete can abut against one end of the yielding buffer piece for damping after solidification;
and a sixth step: after the concrete is solidified and formed into the concrete threaded column, enabling the fastening steel rod to penetrate through the yielding buffer piece to be coaxially placed in the threaded deep hole, and enabling the outer end of the concrete threaded column to abut against the buffer end of the yielding buffer piece; the external thread of the concrete threaded column can enable the concrete threaded column to have a good occlusion effect with soil, so that the fastening steel rod pulls the covering plate to be always abutted against the inclined surface, the concrete threaded column is abutted against one end of the yielding buffer piece, and the yielding buffer piece can eliminate axial force when the concrete threaded column is subjected to the axial force, so that the covering plate is more stable;
the seventh step: covering the cladding plate on the slope surface, enabling the bottom end of the cladding plate to be abutted against the right-angle abutting head and enabling the fastening steel rod to penetrate through the cladding plate; the shroud plate is attached to the inclined plane, so that the inclined plane is not easy to slide, and the fastening steel rod is fixedly connected with the shroud plate, so that the shroud plate is not easy to slide off the inclined plane;
eighth step: the fastening steel rod is elastically and fixedly connected with the shroud plate through the fixed abutting piece; fixed butt piece will fasten steel pole and shroud plate elastic fixation and connect, thereby make the fastening steel pole remain the tight straight state throughout, when the concrete thread post received the axial force, concrete thread post one end butt gets into lets presses the bolster inside, and the fastening steel pole still keeps the tight straight state, thereby make the structure more stable, when the concrete thread post received the axial force and outwards removed, the elastic butt piece is influenced by the axial force easily and takes place deformation, for preventing that the elastic component from coming off and wounding the staff, can effectually prevent that the elastic component from hitting and flying through the visor.
The device stable in structure can effectually prevent that landslide soil from sliding, and can eliminate the vibrational force.
Drawings
FIG. 1 is a perspective view of a ramp;
FIG. 2 is an installed perspective view of the present invention;
FIG. 3 is an installation elevation view of the present invention;
FIG. 4 is a cross-sectional view at section A-A of FIG. 3;
FIG. 5 is a perspective view of the present invention;
FIG. 6 is a front view of the vibration canceling fastener of the present invention;
FIG. 7 is a cross-sectional view at section B-B of FIG. 6;
FIG. 8 is a partial exploded perspective view of the inner portion of the crush relief;
fig. 9 is a partial exploded perspective view of the inside of the crush relief buffer according to the present invention;
fig. 10 is a perspective view of a concrete threaded column of the present invention.
The reference numbers in the figures are:
A. a bevel; a1, a threaded deep hole;
B. a channel;
1. a base; 1a, a right-angle abutting head; 1b, a drainage groove;
2. a fixed head;
3. fastening a steel rod;
4. concrete threaded columns;
5. yielding buffer parts; 5a, a fixed cylinder; 5a1, vias; 5a2, first abutment ring; 5b, a shearing head; 5c, tabletting; 5c1, a first retainer ring; 5c2, pressure relief holes; 5c3, strip port; 5d, a second fixing ring; 5d1, a placing groove;
6. a fixed abutting member; 6a, fixing columns; 6b, a second abutting ring; 6c, an elastic stretching piece; 6c1, spring; 6c2, a spacing collar; 6c3, fixing nut;
7. covering a plate;
8. a protective cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 2 to 10, the landslide prevention device for the deep foundation pit is applied to a fixed slope, the slope comprises an inclined plane a, threaded deep holes a1 are vertically arranged on the inclined plane a at equal intervals, and a channel B is arranged at the bottom end of the slope, and is characterized in that the landslide prevention device comprises a base 1, a vibration absorption fastener and a covering plate 7, the base 1 is coaxially arranged in the channel B, the vibration absorption fastener comprises a fixing head 2, a fastening steel rod 3, a concrete threaded column 4, a yielding buffer 5 and a fixed abutting part 6, the fastening steel rod 3 is axially and uniformly distributed at one end of the fixing head 2, the fixing head 2 is coaxially arranged at the deepest end of the threaded deep hole a1, and the concrete threaded column 4 is formed in the threaded deep hole a1 in a pouring mode in a working state; the fixed abutting piece 6 is coaxially arranged at an outlet of the threaded deep hole A1, an abutting end of the fixed abutting piece is flush with a slope surface, the outer end of the concrete threaded column 4 abuts against the other abutting end of the fixed abutting piece 6, the cladding plate 7 is arranged on the slope surface, the fastening steel rod 3 penetrates through the cladding plate 7 and is elastically and fixedly connected with the cladding plate 7 through the fixed abutting piece 6, and the bottom end of the cladding plate 7 abuts against the top end of the base 1.
Soil body or rock mass on the slope are suffered from factors such as river scouring, groundwater activity, rainwater soaking, earthquake and artifical slope cutting, and under the action of gravity, along certain weak face or weak area, wholly or dispersedly ground is the gliding natural phenomenon of downhill path, and surface soil is loose, at first clears up the slope of basement layer: cleaning up sundries on the surface of the foundation layer, and compacting the surface of the foundation layer tightly, so that the sliding caused by loose soil in the installation process is prevented; placing the base in channel B; a slope surface is provided with a thread deep hole A1, and a plurality of anchoring thread deep holes A1 are vertically formed on the slope surface so as to be convenient for installing the fixing head 2 and fastening the steel rod 3, thereby being convenient for fixing the anti-skid piece; coaxially placing a fixing head 2 which is pre-fixed with a fastening steel rod 3 at the innermost end of the threaded deep hole A1, so that the other end of the fastening steel rod 3 extends out of the deep hole, and pouring into the threaded deep hole A1 conveniently, so that the fastening steel rod 3 is connected with the fastening piece in an outward leakage manner; a certain amount of concrete is poured into the threaded deep hole A1 but the deep hole is not filled, and the concrete is poured into the threaded deep hole A1, so that threads exist on the outer side of the solidified concrete, and the engagement force between the concrete and a soil foundation is increased; after the concrete is solidified and formed into the concrete threaded column 4, the fastening steel rod 3 penetrates through the working end of the yielding buffer piece 5 to be coaxially placed in the threaded deep hole A1, the outer end of the concrete threaded column 4 abuts against the buffering end of the yielding buffer piece 5, and when the concrete threaded column 4 is vibrated along the axial direction, the buffering end of the yielding buffer piece 5 firstly contacts with the axial force of the concrete threaded column 4, so that the vibration of the concrete threaded column is eliminated, and the structure is more stable; cover shroud 7 on the slope for 7 bottom butts of shroud pass shroud 7 at 1 top of base and fastening steel pole 3, make fastening steel pole 3 and 7 elastic fastening of shroud be connected through fixed butt 6, thereby make 7 butts of shroud make the difficult emergence of slope soil slide on inclined plane A, and can eliminate the vibration effectively through letting press bolster 5, thereby make the structure more stable.
As shown in fig. 6 and 7, the crush relief buffers 5 include a fixed cylinder 5a and a shearing head 5b, the concrete shear head comprises a pressing piece 5c and a second fixing ring 5d, through holes 5a1 and a first abutting ring 5a2 are coaxially arranged at two ends of a fixing cylinder 5a respectively, the fixing cylinder 5a is coaxially arranged in a threaded deep hole A1, the first abutting ring 5a2 is flush with an inclined plane A, the second fixing ring 5d is coaxially arranged in the fixing cylinder 5a at equal intervals, a placing groove 5d1 is axially arranged at one end of the second fixing ring 5d, a first fixing ring 5c1 is arranged on the outer circumferential surface of the pressing piece 5c, the pressing piece 5c is arranged on the placing groove 5d1 through a first fixing ring 5c1, the pressing piece 5c is coaxially provided with pressing holes 5c2 and strip-shaped openings 5c3 are uniformly distributed in the radial direction, a shear head 5b and the through holes 5a1 are coaxially arranged in a sliding mode, one end of the shear head 5c abuts against one side, a fastening steel rod 3 penetrates through the strip-shaped openings 5c3, and the outer end of a concrete threaded column 4 abuts against the other.
The two ends of a fixed cylinder 5a are coaxially provided with a through hole 5a1 and a first abutting ring 5a2 respectively, the fixed cylinder 5a is coaxially arranged in a threaded deep hole A1, the first abutting ring 5a2 is flush with an inclined plane A, a second fixed ring 5d is coaxially arranged in the fixed cylinder 5a at equal intervals, one end of the second fixed ring 5d is axially provided with a placing groove 5d1, the outer circumferential surface of a pressing piece 5c is provided with a first fixed ring 5c1, the pressing piece 5c is arranged on the placing groove 5d1 through the first fixed ring 5c1, the pressing piece 5c is coaxially provided with a pressure yielding hole 5c2 and uniformly distributed with strip-shaped openings 5c3 along the radial direction, a shearing head 5b is coaxially arranged with the through hole 5a1 in a sliding mode, one end of the shearing head abuts against one side of the pressing piece 5c, a fastening steel rod 3 penetrates through the strip-shaped opening 5c3, and a concrete threaded column 4 abuts against the other end of the shearing; the outer end of the concrete threaded column 4 is abutted against the shearing head 5b, when the concrete threaded column 4 bears an axial force, the fastening steel rod 3 is always straight, the shearing head 5b is abutted against the pressing sheet 5c to extrude outwards, so that the pressing sheet 5c is extruded outwards by the strip-shaped opening 5c3 through the separated partition plate to deform, and is abutted against one end of the pressing sheet 5c at the outer side, in the process, the pressing sheet 5c eliminates the axial force borne by the concrete threaded column 4, the concrete threaded column 4 is better engaged with soil, and structural stability is provided; through the multilayer, the pressing sheets 5c are mutually matched, so that the axial force borne by the concrete threaded column 4 can be effectively eliminated.
As shown in fig. 7, the cutting head 5b has a truncated cone shape and a narrow end thereof abuts against the pressing piece 5 c.
Cut head 5b and be letting preforming 5c one side for round platform shape and narrow end butt, round platform shape narrow mouth end can be effectual to letting preforming 5c cut, thereby be convenient for eliminate the axial force, cut head 5b narrow end butt at 5c2 one end, when cutting head 5b and receive the axial force that comes from concrete screw post 4, cut head 5b narrow end butt and let pressure hole 5c2 outside extrusion deformation, thereby make the deformation let preforming 5c butt make it unable continuation deformation in another, thereby be convenient for eliminate continuous axial force.
As shown in fig. 7, the fixed abutting piece 6 includes a fixed column 6a, a second abutting ring 6b and an elastic stretching piece 6c, the fixed column 6a vertically penetrates through the outer end of the covering plate 7 to be coaxially and fixedly connected with the second abutting ring 6b, and the elastic stretching piece 6c is coaxially arranged at one end of the external leakage fastening steel rod 3 and abuts against the outer side of the covering plate 7.
The fixing column 6a vertically penetrates through the outer end of the covering plate 7 and is fixedly connected with the second abutting ring 6b in a coaxial mode, the elastic stretching piece 6c is coaxially arranged at one end of the outer leakage fastening steel rod 3 and abuts against the outer side of the covering plate 7, the second abutting ring 6b abuts against the outer side of the covering plate 7, the covering plate 7 and the fastening steel rod 3 are fixedly connected through the elastic stretching piece 6c, the covering plate 7 can be attached to the inclined plane A to prevent landslide, the second abutting ring 6b abuts against the outer side of the covering plate 7 to enable the covering plate 7 to be fixedly connected with the fastening steel rod 3, and therefore the covering plate 7 can be completely abutted against and attached to the inclined plane A.
As shown in fig. 7, the elastic stretching member 6c includes a spring 6c1, a stop collar 6c2 and a fixing nut 6c3, one side of the stop collar 6c2 and one side of the fixing nut 6c3 are coaxially welded at the outer tip of the fastening steel rod 3, the spring 6c1 is coaxially sleeved on the fastening steel rod 3, and two ends of the spring are respectively abutted to the bottom end of the stop collar 6c2 and the outer side of the shroud plate 7.
One side of the limiting ring 6c2 and one side of the fixing nut 6c3 are coaxially welded at the outer leakage end of the fastening steel rod 3, the spring 6c1 is coaxially sleeved on the fastening steel rod 3, and two ends of the spring are respectively abutted to the bottom end of the limiting ring 6c2 and the outer side of the covering plate 7, when the concrete threaded column 4 bears axial force and moves towards the inside of the yielding buffer piece 5, the spring 6c1 can ensure that the covering plate 7 and the fastening steel rod 3 are always elastically connected, and therefore the situation that the connection with the covering plate 7 is not stable enough due to the fact that one end of the fastening steel rod 3 extends is avoided.
As shown in fig. 2, a right-angle contact head 1a is provided on the top end of the base 1 near the slope a, and the bottom end of the shroud plate 7 contacts the top end of the right-angle contact head 1 a.
The top end of the base 1 is provided with a right-angle abutting head 1a close to the side of the inclined plane A, the bottom end of the shroud plate 7 abuts against the top end of the right-angle abutting head 1a, the right-angle abutting head 1a can abut against the top end of the shroud plate 7 to enable the top end of the shroud plate to be more stable to be attached to the inclined plane A, therefore the landslide phenomenon is prevented from occurring, the right-angle abutting head 1a effectively disperses the gravity of the shroud plate 7 to the base plate 1, and therefore the structure is.
As shown in fig. 1, the top end of the base 1 is also provided with a drain groove 1 b.
The top end of the base 1 is also provided with a drainage groove 1b, the drainage groove 1b is used for guiding the flow direction of rainwater on the covering plate 7, so that the rainwater is prevented from being accumulated to cause erosion, the rainwater slides down to the bottom end on the inclined covering plate 7, and therefore 1b0 is used for guiding and collecting.
As shown in fig. 6, the device further comprises a protective cover 8, and the protective cover 8 is coaxially sleeved at the outer end of the tube 6 c.
The coaxial cover of visor 8 is established in 6c outer end, and elasticity tensile piece 6c is to have elastic device, and when concrete screw thread post 4 bore the axial force and outwards remove, elasticity butt piece 6c is influenced by the axial force easily and takes place deformation, for preventing that the elastic component from droing and injuring the staff, can effectually prevent through visor 8 that the elastic component from hitting and flying.
As shown in FIG. 4, the distance between each longitudinal row of shock absorbing fasteners on the slope is more than one meter and less than two meters.
The distance between every two longitudinal rows of vibration-damping fasteners on the slope is larger than one meter and smaller than two meters, the structure of each longitudinal row provided with too many vibration-damping fasteners is not stable enough, the shroud plate 7 cannot be fixed too little, and the installation of a proper number of vibration-damping fasteners on each row can effectively stabilize the shroud plate 7 and has a more stable structure.
An anti-landslide device for a deep foundation pit and a using method thereof comprise the following steps: the first step is as follows: cleaning the slope of the foundation layer: cleaning up sundries on the surface of the foundation layer, and compacting the surface of the foundation layer tightly;
the second step is that: slotting at the bottom end of the slope, coaxially placing the base 1 in the threaded deep hole A1, and enabling the right-angle abutting head 1a to face the slope surface;
the third step: slope face tapping deep hole A1: a plurality of anchoring thread deep holes A1 are vertically formed on the slope surface;
the fourth step: coaxially placing a fixing head 2 pre-fixed with a fastening steel rod 3 at the innermost end of the channel B, and enabling the other end of the fastening steel rod 3 to extend out of the threaded deep hole A1;
the fifth step: injecting a certain amount of concrete into the threaded deep hole A1 but not filling the threaded deep hole A1;
and a sixth step: after the concrete is solidified and formed into the concrete threaded column 4, enabling the fastening steel rod 3 to penetrate through the yielding buffer piece 5 and be coaxially placed in the threaded deep hole A1, and enabling the outer end of the concrete threaded column 4 to abut against the buffering end of the yielding buffer piece 5;
the seventh step: covering the cladding plate 7 on the slope surface, enabling the bottom end of the cladding plate 7 to be abutted against the right-angle abutting head 1a and enabling the fastening steel rod 3 to penetrate through the cladding plate 7;
eighth step: the fastening steel bar 3 is elastically and tightly connected with the shroud plate 7 through the fixing abutting piece 6.
The working principle of the invention is as follows:
the first step is as follows: cleaning the slope of the foundation layer: cleaning up sundries on the surface of the foundation layer, and compacting the surface of the foundation layer tightly; the soil body or rock mass on the slope of the deep foundation pit is influenced by factors such as rainwater soaking, earthquake, artificial slope cutting and the like, under the action of gravity, the natural phenomenon that the soil body or rock mass slides downwards along the slope integrally or dispersedly along a certain weak surface or a weak zone is caused, the surface soil is loose, the slope of the foundation layer is in a loose state before being processed, if an anti-skid slope device is directly installed, the installation structure is not stable enough, and after the slope is compacted tightly, the slope installation vibration absorption fastening piece is more stable and is not easy to slide;
the second step is that: slotting at the bottom end of the slope, coaxially placing the base 1 in the threaded deep hole A1, and enabling the right-angle abutting head 1a to face the slope surface; the right-angle abutting head 1a is abutted to the bottom end of the covering plate 7, so that the structure is more stable when the covering plate 7 covers a slope, the bottom end of the covering plate 7 is not easy to slide off when abutted to the right-angle abutting head 1a and is convenient for fastening the steel rod 3 and the covering plate 7 to be fixedly connected, and the drainage groove 1b is used for guiding rainwater on the covering plate 7, so that the rainwater is not easy to accumulate;
the third step: the slope surface is provided with a thread deep hole A1: a plurality of anchoring thread deep holes A1 are vertically formed on the slope surface; the anchoring thread deep hole A1 is used for fixedly mounting a vibration absorption fastener, so that the shroud plate 7 can be abutted against the inclined plane A, the slope soil is not easy to slide under the impact of rainwater, the thread deep hole A1 is convenient for pouring a thread type straight column, and the engaging force between the thread type straight column and the soil layer is increased;
the fourth step: coaxially placing a fixing head 2 pre-fixed with a fastening steel rod 3 at the innermost end of the channel B, and enabling the other end of the fastening steel rod 3 to extend out of the threaded deep hole A1; the fastening steel rod 3 is used for connecting the shroud plate 7 and the fixing head 2, so that the shroud plate 7 can be attached to the inclined plane A;
the fifth step: injecting a certain amount of concrete into the threaded deep hole A1 but not filling the threaded deep hole A1; the thread deep hole A1 is convenient to mount and fix the abutting part 6, so that the concrete can abut against one end of the yielding buffer part 5 for damping after being solidified;
and a sixth step: after the concrete is solidified and formed into the concrete threaded column 4, enabling the fastening steel rod 3 to penetrate through the yielding buffer piece 5 and be coaxially placed in the threaded deep hole A1, and enabling the outer end of the concrete threaded column 4 to abut against the buffering end of the yielding buffer piece 5; the external thread of the concrete threaded column 4 can enable the concrete threaded column to have a good occlusion effect with soil, so that the fastening steel rod 3 pulls the covering plate 7 to be always abutted against the inclined surface A, the concrete threaded column 4 is abutted against one end of the yielding buffer piece 5, the yielding buffer piece 5 can eliminate axial force when the concrete threaded column 4 is subjected to the axial force, and the covering plate 7 is enabled to be more stable;
the seventh step: covering the cladding plate 7 on the slope surface, enabling the bottom end of the cladding plate 7 to be abutted against the right-angle abutting head 1a and enabling the fastening steel rod 3 to penetrate through the cladding plate 7; the shroud plate 7 is attached to the inclined plane A, so that the inclined plane A is not easy to slide, and the fastening steel rod 3 is fixedly connected with the shroud plate 7, so that the shroud plate 7 is not easy to slide off the inclined plane A;
eighth step: the fastening steel rod 3 is elastically and tightly connected with the shroud plate 7 through the fixed abutting piece 6; fixed butt piece 6 will fasten steel pole 3 and 7 elastic fixation of shroud plate, thereby make fastening steel pole 3 remain the state of straightening all the time, when concrete thread post 4 received the axial force, 4 one end butts of concrete thread post get into let press bolster 5 inside, and fastening steel pole 3 still keeps the state of straightening, thereby make the structure more stable, when concrete thread post 4 received the outside removal of axial force, elastic butt piece 6c receives the axial force to influence easily and takes place deformation, for preventing that the elastic component from coming off and hurting the staff, can effectually prevent that the elastic component from hitting to fly through visor 8.
Claims (10)
1. The utility model provides an anti-skidding slope device for deep basal pit, be used for the fixed slope, the slope includes inclined plane (A), inclined plane (A) is perpendicular equidistant to be provided with screw thread deep hole (A1), the slope bottom is provided with channel (B), a serial communication port, including base (1), damping fastener and shroud plate (7), base (1) coaxial setting is in channel (B), damping fastener includes fixed head (2), fastening steel pole (3), concrete screw thread post (4), let and press bolster (5) and fixed butt piece (6), fastening steel pole (3) along the axial equipartition in fixed head (2) one end, fixed head (2) coaxial setting is at screw thread deep hole (A1) deepest end, under operating condition, pour into a mould and form concrete screw thread post (4) in screw thread deep hole (A1); the fixed abutting piece (6) is coaxially arranged at an outlet of the threaded deep hole (A1), the abutting end of the fixed abutting piece (6) is flush with the slope surface, the outer end of the concrete threaded column (4) abuts against the other abutting end of the fixed abutting piece (6), the cladding plate (7) is arranged on the slope surface, the fastening steel rod (3) penetrates through the cladding plate (7) and is elastically fastened and connected with the cladding plate (7) through the fixed abutting piece (6), and the bottom end of the cladding plate (7) abuts against the top end of the base (1).
2. The landslide prevention device for the deep foundation pit according to claim 1, wherein the yielding buffer member (5) comprises a fixed cylinder (5a), a shearing head (5b), a yielding piece (5c) and a second fixed ring (5d), through holes (5a1) and a first abutting ring (5a2) are coaxially arranged at two ends of the fixed cylinder (5a), the fixed cylinder (5a) is coaxially arranged in the threaded deep hole (A1), the first abutting ring (5a2) is flush with the inclined plane (A), the second fixed ring (5d) is coaxially and equidistantly arranged in the fixed cylinder (5a), a placing groove (5d1) is axially arranged at one end of the second fixed ring (5d), a first fixed ring (5c1) is arranged on the outer circumferential surface of the yielding piece (5c), the yielding piece (5c) is arranged on the placing groove (5d1) through the first fixed ring (5c1), and strip-shaped openings (3) are coaxially arranged on the yielding piece (5c) and are arranged along the radial direction, and the yielding piece (5c) is coaxially arranged with a strip-shaped opening (2), the shearing head (5b) and the through hole (5a1) are coaxially arranged in a sliding mode, one end of the shearing head is abutted to one side of the pressing sheet (5c), the fastening steel rod (3) penetrates through the strip-shaped opening (5c3) and the outer end of the concrete threaded column (4) is abutted to the other end of the shearing head (5 b).
3. The landslide prevention device for a deep foundation pit according to claim 2 wherein the shearing head (5b) is truncated cone shaped and the narrow end abuts against the side of the pressure plate (5 c).
4. The landslide prevention device for the deep foundation pit according to claim 1, wherein the fixed abutting part (6) comprises a fixed column (6a), a second abutting ring (6b) and an elastic stretching part (6c), the fixed column (6a) vertically penetrates through the outer end of the covering plate (7) and is coaxially and fixedly connected with the second abutting ring (6b), and the elastic stretching part (6c) is coaxially arranged at one end of the outer leakage fastening steel rod (3) and abuts against the outer side of the covering plate (7).
5. The landslide prevention device for the deep foundation pit according to claim 4, wherein the elastic stretching piece (6c) comprises a spring (6c1), a limiting ring (6c2) and a fixing nut (6c3), one side of the limiting ring (6c2) and one side of the fixing nut (6c3) are coaxially welded at the outer leakage end of the fastening steel rod (3), the spring (6c1) is coaxially sleeved on the fastening steel rod (3), and two ends of the spring are respectively abutted to the bottom end of the limiting ring (6c2) and the outer side of the covering plate (7).
6. The landslide prevention device for a deep foundation pit according to claim 1, wherein the top end of the base (1) near the slope (A) is provided with a right-angle abutting head (1a), and the bottom end of the shroud plate (7) abuts against the top end of the right-angle abutting head (1 a).
7. The landslide prevention device for a deep foundation pit according to claim 1, wherein the base (1) is further provided at the top end with a drainage groove (1 b).
8. The landslide prevention device for the deep foundation pit according to claim 1, further comprising a protective cover (8), wherein the protective cover (8) is coaxially sleeved at the outer end of the 6 c.
9. The landslide prevention device for a deep foundation pit according to claim 1 wherein the distance between every two longitudinal rows of vibration absorbing fasteners on the slope is greater than one meter and less than two meters.
10. The landslide prevention device for a deep foundation pit and the method of using the same as claimed in any one of claims 1-9, comprising the steps of: the first step is as follows: cleaning the slope of the foundation layer: cleaning up sundries on the surface of the foundation layer, and compacting the surface of the foundation layer tightly;
the second step is that: slotting at the bottom end of the slope, coaxially placing the base (1) in a threaded deep hole (A1) so that the right-angle abutting head (1a) faces the slope surface;
the third step: slope face tapping deep hole (a 1): a plurality of anchoring thread deep holes (A1) are vertically formed on the slope surface;
the fourth step: coaxially placing a fixing head (2) which is fixed with a fastening steel rod (3) in advance at the innermost end of the channel (B), so that the other end of the fastening steel rod (3) extends out of the threaded deep hole (A1);
the fifth step: injecting a certain amount of concrete into the threaded deep hole (A1) but not filling the threaded deep hole (A1);
and a sixth step: after the concrete is solidified and formed into the concrete threaded column (4), enabling the fastening steel rod (3) to penetrate through the yielding buffer piece (5) to be coaxially placed in the threaded deep hole (A1), and enabling the outer end of the concrete threaded column (4) to abut against the buffering end of the yielding buffer piece (5);
the seventh step: covering the cladding plate (7) on the slope surface, enabling the bottom end of the cladding plate (7) to abut against the right-angle abutting head (1a) and enabling the fastening steel rod (3) to penetrate through the cladding plate (7);
eighth step: the fastening steel rod (3) is elastically and tightly connected with the shroud plate (7) through the fixed abutting piece (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010297503.5A CN111576434B (en) | 2020-04-16 | 2020-04-16 | Landslide prevention device for deep foundation pit and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010297503.5A CN111576434B (en) | 2020-04-16 | 2020-04-16 | Landslide prevention device for deep foundation pit and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111576434A true CN111576434A (en) | 2020-08-25 |
| CN111576434B CN111576434B (en) | 2021-10-01 |
Family
ID=72118932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010297503.5A Active CN111576434B (en) | 2020-04-16 | 2020-04-16 | Landslide prevention device for deep foundation pit and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111576434B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494096A (en) * | 2021-08-03 | 2021-10-12 | 河南理工大学 | Splicing type reinforcing device for gravel soil of steep slope in mountain area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005038149A1 (en) * | 2003-10-22 | 2005-04-28 | Beom-Yeon Kim | Fixing agent for ground anchor |
| CN101666093A (en) * | 2009-09-23 | 2010-03-10 | 招商局重庆交通科研设计院有限公司 | Quake-proof anchor rope |
| KR20110108589A (en) * | 2010-03-29 | 2011-10-06 | 우성자 | Shock absorber for ground anchor |
| CN104314088A (en) * | 2014-11-06 | 2015-01-28 | 兰州理工大学 | Seasonal permafrost region self-thermoregulation returning energy-consuming slope supporting structure and construction method |
| CN110700289A (en) * | 2019-10-18 | 2020-01-17 | 霍新合 | Highway slope antidetonation ecological protection system |
-
2020
- 2020-04-16 CN CN202010297503.5A patent/CN111576434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005038149A1 (en) * | 2003-10-22 | 2005-04-28 | Beom-Yeon Kim | Fixing agent for ground anchor |
| CN101666093A (en) * | 2009-09-23 | 2010-03-10 | 招商局重庆交通科研设计院有限公司 | Quake-proof anchor rope |
| KR20110108589A (en) * | 2010-03-29 | 2011-10-06 | 우성자 | Shock absorber for ground anchor |
| CN104314088A (en) * | 2014-11-06 | 2015-01-28 | 兰州理工大学 | Seasonal permafrost region self-thermoregulation returning energy-consuming slope supporting structure and construction method |
| CN110700289A (en) * | 2019-10-18 | 2020-01-17 | 霍新合 | Highway slope antidetonation ecological protection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494096A (en) * | 2021-08-03 | 2021-10-12 | 河南理工大学 | Splicing type reinforcing device for gravel soil of steep slope in mountain area |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111576434B (en) | 2021-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107063881B (en) | A kind of landslide monitoring model equipment and its test method based on secondary audio technology | |
| CN111576434B (en) | Landslide prevention device for deep foundation pit and using method thereof | |
| CA1050233A (en) | Removable press anchor with destructible anchor body | |
| CN103590428A (en) | Connection method for basic raft and 'two-in-one' underground diaphragm wall | |
| CN111021373A (en) | Slope reinforcing apparatus for building municipal works | |
| JPS63308115A (en) | Drain pipe and execution thereof | |
| CN211690386U (en) | Slope reinforcing device for foundation building engineering | |
| CN209429141U (en) | Slope of highway composite protection structure | |
| KR101253496B1 (en) | Expansion anchor body structure and execution a method | |
| KR102091016B1 (en) | Metallath permanent anchor assembly | |
| JP2020033714A (en) | Drain pipe laying construction method | |
| KR100767469B1 (en) | Improving Nailing Apparatus and Method | |
| CN203613565U (en) | Connection structure of basic raft and dual-purpose underground diaphragm wall | |
| CN113494096B (en) | Splicing type reinforcing device for gravel soil of steep slope in mountain area | |
| KR102522769B1 (en) | Fixing construction method of high-strength GFRP hollow bar for tunnel and ground reinforcement and its construction device | |
| CN212225231U (en) | Protective structure for bias tunnel portal | |
| CN210737567U (en) | Slope support system | |
| CN110409436B (en) | Anchor rod structure and construction method thereof | |
| KR100799328B1 (en) | Extractable nail structure and reinforce steel-bar extraction method using the same | |
| KR20140029675A (en) | Earth anchor apparatus with integrated anchor cap | |
| CN110117957A (en) | A kind of installation method of concrete hollow anchor pole tooling | |
| CN211472528U (en) | Soil nailing wall supporting construction | |
| CN118390545A (en) | Slope reinforcement energy dissipation device and method | |
| CN211340749U (en) | Grouting pipe for foundation engineering | |
| CN214118068U (en) | Efficient down-the-hole hammer drilling tool |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210901 Address after: Room 7912, zone a, floor 7, building 7, No. 358, Yinxi Road, Jiuting Town, Songjiang District, Shanghai 201600 Applicant after: Shanghai Jiucheng geotechnical Technology Co.,Ltd. Address before: 224000 No. 60, Tongying street, Lupu Town, Funing County, Yancheng City, Jiangsu Province Applicant before: Liu Chengfu |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220915 Address after: Room 7901, Area A, 7th Floor, Building 7, No. 358, Yinxi Road, Jiuting Town, Songjiang District, Shanghai, 201600 Patentee after: Shanghai Jiucheng Construction Technology Group Co.,Ltd. Address before: Room 7912, zone a, floor 7, building 7, No. 358, Yinxi Road, Jiuting Town, Songjiang District, Shanghai 201600 Patentee before: Shanghai Jiucheng geotechnical Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |