CN218437175U - Y type double sided board stock barricade - Google Patents
Y type double sided board stock barricade Download PDFInfo
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- CN218437175U CN218437175U CN202222471436.1U CN202222471436U CN218437175U CN 218437175 U CN218437175 U CN 218437175U CN 202222471436 U CN202222471436 U CN 202222471436U CN 218437175 U CN218437175 U CN 218437175U
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Abstract
The utility model relates to a Y type double sided board stock barricade belongs to building construction technical field, including outside reinforced concrete panel, inside reinforced concrete panel, bottom reinforced concrete panel, reinforced concrete coupling beam, prestressed anchorage pole and outlet, inside reinforced concrete panel is along the slope body surface setting of laminating of the sunken region of slope body, outside reinforced concrete panel and the panel wall of the non-sunken region of slope body keep straight connection and form wholly, inside and outside reinforced concrete panel and the reinforced concrete coupling beam that sets up between the two form the inside cavity of triangle-shaped cross-section jointly; the roots of the inner reinforced concrete panel and the outer reinforced concrete panel and the top of the bottom reinforced concrete panel are anchored and connected to form a Y-shaped integral retaining wall; the prestressed anchor rods are respectively anchored and fixed with the inner reinforced concrete panel and the bottom reinforced concrete panel; a plurality of outlet openings are respectively arranged on the inner reinforced concrete panel and the outer reinforced concrete panel, and the outlet openings are arranged according to the inner height and the outer height.
Description
Technical Field
The utility model relates to a construction technical field, in particular to Y type double sided board stock barricade.
Background
Aiming at the rock bolting and shotcreting support engineering with the height not greater than 15 m, a construction treatment method for the anchor rod panel wall with the sinking condition at the top of the wall back side slope is needed. The anchor rod (cable) panel retaining wall mainly comprises an anchor rod (cable) and a cast-in-place concrete panel, and before construction, slope surface is required to be subjected to slope repairing treatment, and a slope loose layer and an unstable block are removed, so that the slope surface of the slope is smooth and straight. In the work progress, the slope body of side slope often can be because of the easy nature of droing of ground layer block or influence of rock mass blasting earlier stage, and loose bed and the condition of unstable rock mass range expansion easily appear in the domatic, cause the wall back of the body slope of barricade to cave in on a large scale partially. The wall back slope body is sunken on a large scale locally, and the influence that probably causes has:
(1) The filling of the concave part of the slope body is difficult, and the setting requirement of the full bonding of the anchor rod (cable) is influenced.
(2) The side line of the top of the slope expands outwards and even exceeds the red line of land.
(3) The safety distance between the slope top sideline and the slope top building, the road and the like is insufficient.
(4) Rainwater and runoff on the surface of the side slope sunken part are converged into rapid water flow, so that water and soil loss is caused.
Therefore, it is highly desirable to provide a Y-shaped double-faced anchor retaining wall to complete the filling and reinforcing of the local depression of the wall back slope.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a Y type double sided board stock barricade is a barricade that realizes effectively filling to wall back slope body depressed area. The Y-shaped double-sided plate anchor rod retaining wall consists of a prestressed anchor rod and an inner and outer double-layer reinforced concrete panel wall. The reinforced concrete panel wall at the outer side of the concave area of the slope body and the retaining walls at the two sides keep horizontal and straight; the inner reinforced concrete panel wall is arranged along the concave area of the slope body and attached to the surface of the slope body, the inner reinforced concrete panel wall is cast and molded in a concrete spraying mode, and the prestressed anchor rod is anchored on the inner reinforced concrete panel wall; the upper parts of the enclosed areas of the inner side and the outer side reinforced concrete panels are connected by reinforced concrete connecting beams, the roots of the inner side reinforced concrete panels and the outer side reinforced concrete panels are intersected, and the reinforcing steel bars of the inner side reinforced concrete panels are anchored in the walls of the outer side reinforced concrete panels to form a Y-shaped integral retaining wall; and a cavity between the inner reinforced concrete panel and the outer reinforced concrete panel is backfilled to the top elevation of the reinforced concrete connecting beam by adopting a light material, and the upper part of the reinforced concrete connecting beam is backfilled by adopting plain soil or planting soil, so that the filling and the reinforcement of the local depression of the wall back slope body are realized.
In order to solve the technical problem, the technical scheme of the utility model as follows:
the utility model provides a Y type double faced plate stock barricade, includes outside reinforced concrete panel, inboard reinforced concrete panel, bottom reinforced concrete panel, reinforced concrete even roof beam, prestressed anchorage pole and outlet, wherein:
the inner reinforced concrete panel is arranged along the concave area of the slope body and attached to the surface of the slope body, the included angle between the inner reinforced concrete panel and the horizontal plane is controlled to be 30-70 degrees, the outer reinforced concrete panel and the panel wall of the non-concave area of the slope body are kept in straight connection to form a whole, and the inner reinforced concrete panel, the outer reinforced concrete panel and the reinforced concrete connecting beam arranged at the upper parts of the enclosed areas of the inner reinforced concrete panel and the outer reinforced concrete panel form an internal cavity with a triangular section together; the root of the inner reinforced concrete panel, the root of the outer reinforced concrete panel and the top of the bottom reinforced concrete panel are anchored and connected to form a Y-shaped integral retaining wall;
the plurality of prestressed anchor rods are respectively anchored and fixed with the inner reinforced concrete panel and the bottom reinforced concrete panel;
the plurality of the water drainage holes are respectively arranged on the inner reinforced concrete panel and the outer reinforced concrete panel, and the water drainage holes are arranged according to the inner height and the outer height.
Furthermore, light material backfill layers are arranged on two sides and the bottom of the reinforced concrete connecting beam, and a composite structure layer is further arranged below the light material backfill layers at the bottom of the reinforced concrete connecting beam.
Furthermore, a composite structure layer and a plain soil backfill layer are sequentially arranged above the reinforced concrete connecting beam from bottom to top.
Further, a composite structure layer is arranged at one end, close to the concave area of the slope body, of the water drainage hole.
Further, the composite structure layer is sequentially provided with a gravel reverse filter layer and permeable geotextile from bottom to top, and the permeable geotextile is tiled on the upper surface of the gravel reverse filter layer.
Further, the height of the plain soil backfill layer is not more than 500mm. Of course, the plain soil backfill layer can also be
And backfilling construction by adopting planting soil.
Further, the horizontal distance of the reinforced concrete coupling beams is 3m.
Compared with the prior art, the utility model discloses profitable technological effect lies in:
the utility model discloses a Y type double sided board stock barricade comprises prestressed anchorage pole and inside and outside double-deck reinforced concrete panel wall. The reinforced concrete panel wall at the outer side of the concave area of the slope body and the retaining walls at the two sides keep horizontal and straight; the inner reinforced concrete panel wall is arranged along the concave area of the slope body and attached to the surface of the slope body, the inner reinforced concrete panel wall is cast and molded in a concrete spraying mode, and the prestressed anchor rod is anchored on the inner reinforced concrete panel wall; the upper part of the enclosed area of the inner side and the outer side reinforced concrete panel is connected by adopting a reinforced concrete connecting beam, the inner side reinforced concrete panel is intersected with the root part of the outer side reinforced concrete panel, and the reinforcing steel bars of the inner side reinforced concrete panel are anchored in the wall of the outer side reinforced concrete panel to form a Y-shaped integral retaining wall; and a cavity between the inner reinforced concrete panel and the outer reinforced concrete panel is backfilled to the elevation of the top of the reinforced concrete connecting beam by adopting a light material, and the upper part of the reinforced concrete connecting beam is backfilled by adopting plain soil or planting soil, so that the local depression of the wall back slope is filled and reinforced. The Y-shaped double-sided plate anchor rod retaining wall can effectively fill the sunken area of the wall back slope body, and realizes the full bonding arrangement of the anchor rods (cables); the condition that the slope top sideline expands outwards to cause exceeding the land red line is avoided; the situation that the safety distance between the slope top sideline and the building on the slope top, the road and the like is insufficient due to the outward expansion of the slope top sideline is avoided; the condition that rainwater and runoff on the surface of the concave part of the slope body are converged and integrated into rapid water flow to cause water and soil loss is avoided. The Y-shaped double-sided plate anchor rod retaining wall is strong in operability, simple in construction process, safe and reliable, and has good economic benefits and popularization values.
Drawings
Fig. 1 is a schematic cross-sectional view of the Y-shaped double-sided anchor retaining wall of the present invention.
In the figure:
the method comprises the following steps of 1-outer reinforced concrete panel, 2-inner reinforced concrete panel, 3-bottom reinforced concrete panel, 4-reinforced concrete connecting beam, 5-prestressed anchor rod, 6-water drainage hole, 7-composite structure layer, 8-light material backfill layer, 9-plain soil backfill layer and 10-slope body sunken area.
Detailed Description
The following provides a detailed description of the Y-shaped double-sided anchor retaining wall according to the present invention with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this should not be construed as limiting the technical solution of the present invention.
The structure of the Y-shaped double-sided anchor retaining wall of the present invention will be described in detail with reference to fig. 1.
Example one
As shown in fig. 1, the Y-shaped double-sided anchor retaining wall of the present embodiment includes an outer reinforced concrete panel 1, an inner reinforced concrete panel 2, a bottom reinforced concrete panel 3, a reinforced concrete coupling beam 4, a prestressed anchor 5, and a water discharge hole 6, wherein:
the inner reinforced concrete panel 2 is arranged along the concave region 10 of the slope body and attached to the surface of the slope body, the included angle between the inner reinforced concrete panel 2 and the horizontal plane is controlled to be 30-70 degrees, the outer reinforced concrete panel 1 and the panel wall of the non-concave region of the slope body are kept straight and connected to form a whole, and the inner reinforced concrete panel 2, the outer reinforced concrete panel 1 and the reinforced concrete connecting beam 4 arranged at the upper part of the enclosed region of the inner reinforced concrete panel and the outer reinforced concrete panel form an inner cavity with a triangular section together; the root of the inner reinforced concrete panel 2, the root of the outer reinforced concrete panel 1 and the top of the bottom reinforced concrete panel 3 are anchored and connected to form a Y-shaped integral retaining wall;
the prestressed anchor rods 5 are respectively anchored and fixed with the inner reinforced concrete panel 2 and the bottom reinforced concrete panel 3;
a plurality of the water drainage holes 6 are respectively arranged on the inner reinforced concrete panel 2 and the outer reinforced concrete panel 1, and the water drainage holes 6 are arranged according to the inner height and the outer height.
Specifically, the inner reinforced concrete panel 2 is arranged at the concave area 10 of the slope body, the double-layer reinforcing mesh is arranged on the surface of the slope body attached to the concave area 10 of the slope body, concrete is poured in a wet spraying mode to form the inner reinforced concrete panel 2, and the prestressed anchor rod 5 is anchored on the inner reinforced concrete panel 2, so that the situation that the prestressed anchor rod 5 is partially exposed and cannot be arranged in a full bonding mode due to rock and soil loss of the concave area 10 of the slope body is avoided.
The retaining walls of the prestressed anchor rods 5 on the two sides of the outer reinforced concrete panel 1 and the slope body sunken area 10 are horizontally and longitudinally kept straight, and the outer reinforced concrete panel 1 is poured in a cast-in-place mode. The panel of the non-sunken area of the slope body is anchored by a prestressed anchor rod 5; in the range of the sunken area of the slope, an outer reinforced concrete panel 1 which keeps straight with the panel wall of the peripheral non-sunken area is arranged outside the existing inner reinforced concrete panel 2, namely the sunken area of the slope forms a double-layer panel wall formed by enclosing the outer reinforced concrete panel 1 and the inner reinforced concrete panel 2. A safe and reliable cavity can be provided for filling the sunken slope body between the double-deck panel walls.
The reinforced concrete coupling beams 4 are horizontally arranged at intervals of 3 meters, erected between the inner and outer double-layer panel walls and extended into the outer reinforced concrete panels 1 and the inner reinforced concrete panels 2 on the two sides, so that the inner and outer double-layer panel walls are supported and connected. Meanwhile, the horizontal intervals of the reinforced concrete coupling beams 4 are arranged to form a vertical soil arch effect on the upper plain soil backfill soil layer 9, so that the unloading effect is realized.
The bottom of the cavity between the double-layer panel walls is backfilled with a light material to the top elevation position of the connecting beam to form a light material backfill layer 8, and the upper part of the reinforced concrete connecting beam 4 is paved with a gravel reverse filter layer and permeable geotextile to form a composite structure layer 7. The drainage holes 6 are formed in the outer reinforced concrete panel 1 at the root of the cavity of the double-layer panel wall and at the position of the broken stone reverse filter layer, so that accumulated water in the cavity can be conveniently discharged; the positions of the inner reinforced concrete panels 2, which are provided with the drain holes 6, are slightly higher than the positions of the drain holes 6 of the outer reinforced concrete panels 1, so that accumulated water in the slope is conveniently discharged outside.
Particularly, the total height of the Y-shaped double-faced plate anchor rod retaining wall is not more than 15 meters, the maximum distance between the double-layer panel walls is not more than 5 meters, and the horizontal distance between the reinforced concrete connecting beams 4 is not more than 3 meters. The included angle between the reinforced concrete panel 2 at the inner side and the horizontal is preferably controlled to be 30-70 degrees. The height of the backfilling soil at the top of the reinforced concrete connecting beam 4, namely the plain soil backfilling layer 9, is not more than 500mm, and a reserved space can be arranged for the slope top intercepting ditch.
With reference to fig. 1, the present embodiment further provides a construction method of a Y-shaped double-sided board anchor retaining wall, which includes the following steps:
1. and (3) earth layered excavation: the earthwork adopts mechanical layered excavation, the excavation depth of each layer is controlled to be about 500mm, and the operation condition of mechanical drilling is provided for the earthwork by matching with the prestressed anchor rod 5 for drilling. Loose layers and unstable blocks should be removed from the slope surface of the side slope.
2. Drilling the prestressed anchor rod 5: the prestressed anchor rod 5 is a pressure type anchor rod or an anchor cable, mechanical hole forming is adopted, and the aperture and the anchor cable material meet the design requirements. And constructing the prestressed anchor rods 5 from top to bottom, excavating earthwork in layers, stopping when the earthwork falls to 500mm below the horizontal position of the pore-forming holes of the first row of prestressed anchor rods 5, and preparing for mechanical drilling, grouting of the prestressed anchor rods 5 and other constructions. The method can be specifically divided into three steps:
firstly, measuring and releasing anchor holes: according to the requirements of design drawings, the anchor hole position is ready to be measured and placed on the slope surface, and the longitudinal and transverse errors of the hole position on the slope surface are not more than 50mm.
Secondly, positioning a drilling machine: the anchor hole drill adopts a down-the-hole drill to form holes, a fixed drill is accurately installed according to the position of the anchor hole measuring and placing hole, the machine position is strictly adjusted, and the inclination angle and the direction of the drill hole meet the design requirements.
And thirdly, drilling holes by adopting a dry drilling method to ensure that the construction of the prestressed anchor rods 5 does not deteriorate the geological conditions of the slope rock engineering and ensure the bonding property of hole walls. The deviation of the hole position is not more than 50mm, the declination of the anchor hole and the horizontal included angle meet the design requirement, and the deviation of the inclination angle is not more than 3 degrees. In order to ensure the depth of the anchor hole, the drilling depth is required to exceed the designed length of the anchor cable by about 0.5 m. If the pebble bed drilling is difficult in the hole forming process, the hole forming operation is carried out in a pipe drilling mode.
3. Bottom panel construction: the panel wall is buried 500mm below the ground, and the concrete panel is joined in marriage double-deck two-way reinforcing bar, and ligature wall body vertical location ladder muscle earlier carries out the ligature of vertical muscle again, guarantees protective layer of steel reinforcement and wall body thickness, and panel wall level muscle is in the vertical muscle outside. And after the acceptance of the steel bars is qualified, erecting, reinforcing and die assembling the panel wall template, and pouring concrete after the acceptance of the steel bars is qualified. The strength grade of the concrete is not lower than C30, and the concrete meets the design requirements. The panels are provided with vertical expansion joints at intervals of 20-25 m in length along the longitudinal direction of the slope.
4. Construction of an inner side panel of a concave area of a slope body: the inner reinforced concrete panel 2 is laid on the attaching slope surface of the double-layer reinforcing mesh, and the included angle between the inner reinforced concrete panel 2 and the horizontal plane is preferably controlled to be 30-70 degrees. And the thickness of the steel bar protection layer and the wall body is ensured, and after the steel bars are accepted, the concrete platform type wet spraying machine is adopted to implement concrete layered covering on the slope surface panel steel bars until the design thickness requirement is met. The water drainage holes 6 are pre-buried and laid well before concrete construction, and anti-blocking treatment is well carried out.
5. The prestressed anchor rod tensioning method mainly comprises the following two steps:
grouting in the first step: the grouting liquid of the anchoring section of the prestressed anchor rod 5 adopts pure cement paste, the strength grade of the cement paste is M30, and the cement adopts common Portland cement of 42.5 Mpa. The expanding agent and the water reducing agent are added into the cement slurry to prevent the shrinkage of the slurry from influencing the service life. And placing the grouting pipe and the steel strand into the hole together, grouting while pulling the pipe while the distance between the grouting pipe and the hole bottom is not less than 200mm until the flow is discharged from the hole opening, wherein the grouting mode is pressure grouting, and the grouting pressure is not less than 0.80MPa.
Second-step prestressed anchor rod 5 tensioning: taking the prestressed anchor 5 as an example, before large-scale tensioning, a drawing test should be performed. And tensioning after the cement paste of the anchoring section reaches 80% of the design strength. Tensioning by using a jack, simultaneously tensioning each constrained steel strand in a hole during tensioning, and firstly performing one-time tensioning to 0.2Nk before prestress tensioning; and tensioning for the second time to 1.1Nk, stabilizing for 5-10 minutes, and unloading to a locking value Ns for locking, wherein the locking value is 0.8Nk.
6. And (3) constructing the reinforced concrete panel and the reinforced concrete connecting beam outside the sunken area of the slope body: the method for binding the double-layer bidirectional steel bars of the outer reinforced concrete panel 1 and erecting the template is the same as the method for erecting the bottom panel wall, and the outer reinforced concrete panel 1 and the inner reinforced concrete panel 2 are arranged above the bottom reinforced concrete panel wall 3 at the same root. The outer reinforced concrete panel 1 and the inner reinforced concrete panel 2 have different horizontal included angles, the upper part of the outer reinforced concrete panel is supported by the reinforced concrete connecting beam 4 at a horizontal interval of 3 meters, the length of the reinforced concrete connecting beam 4 is not more than 3 meters, and the distance between the outer reinforced concrete panel 1 and the inner reinforced concrete panel 2 is not more than 5 meters. The two ends of the reinforced concrete coupling beam 4 are anchored between the double-layer panel walls formed by the enclosing of the outer reinforced concrete panel 1 and the inner reinforced concrete panel 2, and the anchoring length of the reinforced concrete coupling beam meets the standard requirement. The height of the reinforced concrete connecting beam 4 is preferably 500mm lower than the elevation of the top of the retaining wall, and a reserved slope top intercepting ditch arrangement space is reserved.
7. Filling cavities between double-deck panel walls: the bottom of a cavity between the double-layer panel walls is backfilled with a light material to the top elevation position of the connecting beam to form a light material backfill layer 8, and a composite structure layer 7 formed by a broken stone reverse filter layer and permeable geotextile is laid on the upper part of the reinforced concrete connecting beam 4. The drain holes 6 are formed in the root part of the cavity of the double-layer panel wall and the outer reinforced concrete panel 1 at the position of the gravel reversed filter layer, so that accumulated water in the cavity can be conveniently discharged; the positions of the inner reinforced concrete panels 2 provided with the drain holes 6 are slightly higher than the positions of the drain holes 6 of the outer reinforced concrete panels 1, so that accumulated water in the slope is conveniently discharged.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (7)
1. The utility model provides a Y type double faced plate stock barricade which characterized in that, includes outside reinforced concrete panel, inboard reinforced concrete panel, bottom reinforced concrete panel, reinforced concrete even roof beam, prestressed anchorage pole and outlet, wherein:
the inner reinforced concrete panel is arranged along the concave area of the slope body and attached to the surface of the slope body, the included angle between the inner reinforced concrete panel and the horizontal plane is controlled to be 30-70 degrees, the outer reinforced concrete panel and the panel wall of the non-concave area of the slope body are kept in straight connection to form a whole, and the inner reinforced concrete panel, the outer reinforced concrete panel and the reinforced concrete connecting beam arranged at the upper parts of the enclosed areas of the inner reinforced concrete panel and the outer reinforced concrete panel form an internal cavity with a triangular section together; the root of the inner reinforced concrete panel, the root of the outer reinforced concrete panel and the top of the bottom reinforced concrete panel are anchored and connected to form a Y-shaped integral retaining wall;
the plurality of prestressed anchor rods are respectively anchored and fixed with the inner reinforced concrete panel and the bottom reinforced concrete panel;
the plurality of the water drainage holes are respectively arranged on the inner reinforced concrete panel and the outer reinforced concrete panel, and the water drainage holes are arranged according to the inner height and the outer height.
2. The Y-shaped double-sided plate anchor retaining wall as claimed in claim 1, wherein the reinforced concrete coupling beam is provided with light material backfill layers on both sides and at the bottom, and a composite structure layer is further provided under the light material backfill layer at the bottom of the reinforced concrete coupling beam.
3. The Y-shaped double-sided plate anchor retaining wall according to claim 1, wherein a composite structural layer and a plain soil backfill layer are sequentially arranged above the reinforced concrete coupling beam from bottom to top.
4. The Y-shaped double-faced plate anchor rod retaining wall as claimed in claim 1, wherein a composite structure layer is disposed at one end of the drainage hole close to the recessed region of the slope body.
5. The Y-shaped double-faced plate anchor rod retaining wall as claimed in claim 2, 3 or 4, wherein the composite structure layer comprises a gravel reverse filter layer and a permeable geotextile from bottom to top in sequence, and the permeable geotextile is laid on the upper surface of the gravel reverse filter layer.
6. The Y-type double-faced plate anchor retaining wall of claim 3, wherein the height of the plain soil backfill layer is no more than 500mm.
7. The Y-type double-sided plate anchor retaining wall as claimed in claim 1, wherein the horizontal interval of the reinforced concrete coupling beams is 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222471436.1U CN218437175U (en) | 2022-09-19 | 2022-09-19 | Y type double sided board stock barricade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222471436.1U CN218437175U (en) | 2022-09-19 | 2022-09-19 | Y type double sided board stock barricade |
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| Publication Number | Publication Date |
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| CN218437175U true CN218437175U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222471436.1U Active CN218437175U (en) | 2022-09-19 | 2022-09-19 | Y type double sided board stock barricade |
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| CN (1) | CN218437175U (en) |
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- 2022-09-19 CN CN202222471436.1U patent/CN218437175U/en active Active
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