CN214194586U - Over-cut backfill structure - Google Patents

Over-cut backfill structure Download PDF

Info

Publication number
CN214194586U
CN214194586U CN202023080034.6U CN202023080034U CN214194586U CN 214194586 U CN214194586 U CN 214194586U CN 202023080034 U CN202023080034 U CN 202023080034U CN 214194586 U CN214194586 U CN 214194586U
Authority
CN
China
Prior art keywords
cutting
platform
slope
cut
backfill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202023080034.6U
Other languages
Chinese (zh)
Inventor
詹斌
王栋
谭秀娟
陈亮
程双喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei Provincial Road & Bridge Co ltd
Original Assignee
Hubei Provincial Road & Bridge Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hubei Provincial Road & Bridge Co ltd filed Critical Hubei Provincial Road & Bridge Co ltd
Priority to CN202023080034.6U priority Critical patent/CN214194586U/en
Application granted granted Critical
Publication of CN214194586U publication Critical patent/CN214194586U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to an overcut cut backfill structure, mainly include prefabricated gutter, waist platform escape canal, slip casting stock, reinforcing bar net piece, pile platform, friction pile, road surface side ditch, protruding type roof beam, prefabricated concrete apron, sash roof beam, concrete hollow brick, slip casting pipe, anchor cover, sash roof beam owner muscle, concrete seal etc. overcut cut backfill structure sets up prefabricated gutter at the top of overcut cut, waist platform inboard sets up waist platform escape canal, the side slope bottom sets up a plurality of friction piles along the road surface vertically, overcut cut slope pours protruding type roof beam, lay prefabricated concrete apron in the square frame that protruding type roof beam encloses and seal, overcut cut slope under the cutting lays reinforcing bar net piece, it fixes to establish the slip casting stock, the anchor head is bound with sash beam reinforcement cage, place concrete hollow brick in the square check of sash roof beam enclosure, plant herbaceous plant; the utility model relates to an overexcavation cutting backfill structure drainage is good, and side slope stability is strong, receives rivers scouring action little, and construction speed is fast, has better economic technology benefit.

Description

Over-cut backfill structure
Technical Field
The utility model relates to an overexcavation cutting backfill structure mainly is applied to during the construction of the overexcavation cutting that the time limit for a project is tight, the rainfall is great, the side slope soil property is relatively poor, easily take place to collapse.
Background
Along with the continuous expansion of the scale of road construction, the grade of the road is continuously improved, and the key points of the road construction in China are gradually shifted to areas with mountains and hills, so that the problem of environmental geological disasters is increasingly prominent. If disasters such as collapse, landslide, debris flow caused by cutting slope instability not only bring losses which are difficult to estimate for farmland, infrastructure, people's lives and properties along the line, but also leave huge hidden dangers for later cutting slope treatment, and directly lead to the great improvement of slope prevention and control cost.
When the engineering is in the more mountain area of southern rainwater, the cutting construction often faces following problem: 1) the rainwater is more, the drainage of the side slope is insufficient, great inconvenience is brought to the construction operation, and the construction period is seriously influenced; 2) the weak and weathered rock stratum in the side slope is drenched by rainwater for a long time, and the side slope is easy to collapse, slide, debris flow and other disasters; 3) after the construction is finished, the heel part of the side slope is greatly influenced by water flow in the later use process, and the stability of the side slope is poor.
Aiming at the problems, the invention provides a simple and effective over-cut backfill structure which can improve the drainage efficiency of a side slope, enhance the stability of the side slope, prevent the side slope from disasters such as collapse, landslide and debris flow and ensure the later normal use.
SUMMERY OF THE UTILITY MODEL
Based on this, this application provides overexcavation cutting backfill structure for solve side slope poor stability, calamity such as drainage efficiency low prevents that disasters such as the slope emergence collapses, landslide, mud-rock flow from, guarantees later stage normal use.
The utility model provides an overswelling cutting backfill structure, including original state soil, prefabricated gutter, cutting top, waist platform escape canal, slip casting stock, reinforcing bar net piece, pile platform, road surface, protruding type roof beam and prefabricated concrete apron, the road surface both sides branch is equipped with the pile platform, is equipped with the cling pile on the pile platform, is equipped with the road surface side ditch between road surface and the pile platform, waist platform is located pile platform top, and the cutting top is located waist platform top and is located the coplanar with original state soil, the cutting top sets up prefabricated gutter according to design dimension on original state soil, and waist platform inboard sets up waist platform escape canal, protruding type roof beam is pour on the overswelling cutting uphill, and prefabricated concrete apron is laid in protruding type roof beam in the region that overswelling cutting uphill department encloses, reinforcing bar net piece and sash roof beam lay on the overswelling cutting downhill path, and the reinforcing bar net piece is fixed through the slip casting stock.
Preferably, the overexcavation cutting upper slope is a ramp between the cutting top and the waist platform, and the overexcavation cutting lower slope is a ramp between the waist platform and the pile platform.
Preferably, the waist platform drainage ditch is of a cast-in-place structure, the longitudinal drainage gradient is 2%, and the longitudinal drainage gradient of the prefabricated gutter is 1.5%.
Preferably, the pile platform sets up in overexcavation cutting slope bottom, and its along the vertical bar arrangement that is of road surface, and the friction pile is equipped with a plurality ofly, and a plurality of friction piles set up in the pile platform according to size and the interval of design.
Preferably, the pavement side ditches are excavated and arranged at the heel parts of the pile platforms, the pavement side ditches are of cast-in-place structures, the pavement side ditches are arranged on two sides of the pavement, and the longitudinal drainage gradient is 5%.
Preferably, protruding type roof beam is "protruding" type structure, and protruding type roof beam will surpass and dig the cutting uphill and enclose into a plurality of square frames, and prefabricated concrete apron is placed and is carried out totally closed to surpassing and dig the cutting uphill in square frame to be equipped with rings on prefabricated concrete apron.
Preferably, the slip casting stock includes cement mortar, slip casting pipe, anchor cover and anchor head, the slip casting pipe inserts and surpasses to dig the downthehole cement mortar of slip casting of cutting lower slope and carry out the anchor, and the anchor cover is suppressed the reinforcing bar net piece and is fixed through the ligature of binding wire, the anchor head is fixed with sash roof beam owner muscle, sash roof beam hoop roof beam ligature, and sash roof beam concrete cover carries out totally closed on anchor head, sash roof beam owner muscle and sash roof beam hoop roof beam, wraps the inside with all reinforcing bars in the roof beam through the roof beam concrete promptly, in case of corrosion.
Preferably, the frame beams surround the lower slope of the overexcavation cutting into a plurality of square frames, a fine aggregate concrete sealing layer with the thickness of 50cm is poured on the steel bar mesh in each square frame, concrete hollow bricks are orderly stacked on the upper parts of the concrete sealing layers, and herbaceous plants are planted in the hollow bricks.
Preferably, a layer of 50cm thick fine stone concrete is poured on all exposed surfaces of the graben, the waist platform and the pile platform for sealing.
Compared with the prior art, the utility model has the following characteristics and beneficial effect:
(1) the utility model discloses set up the multilayer escape canal at moat top, waist platform, road surface side, can effectually in time discharge the side slope rainwater, the rainwater influences for a short time to construction period.
(2) The utility model discloses adopting protruding type roof beam and prefabricated concrete apron integrated configuration to seal at the cut upper slope of surpassing digging, construction speed is fast, and the rainwater is little to the slope scouring action on the cut.
(3) The utility model discloses beat on the cut lower slope of overexcavation and establish the slip casting stock and consolidate the slope to lay reinforcing bar net piece and strengthen the slope wholeness, put things in good order concrete hollow brick in the sash roof beam and plant herbaceous plant, can effectual improvement slope resist the effort that collapses, landslide.
(4) The utility model discloses set up pile platform and friction pile, can effectually prevent that the side slope from taking place the side and moving, strengthened the overall stability of side slope.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in related arts, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is the overall structure diagram of the over cut backfill structure of the present invention (top);
FIG. 2 is the overall structure of the over cut backfill structure (below);
FIG. 3 is an enlarged view of the part A structure of the combination of the overexcavation cut uphill slope convex beam and the precast concrete cover plate in FIG. 1;
FIG. 4 is an enlarged plan view of part A of the combination of the overexcavation cut uphill slope convex beam and the precast concrete cover plate in FIG. 1;
FIG. 5 is a sectional view of a portion B of the connection part of an overexcavation cut slope grouting anchor rod, a reinforcing mesh and a sash beam in FIG. 1;
FIG. 6 is a cross-sectional view of the C-shaped section of a concrete hollow brick stacking structure in the square sash of the undercut cutting in FIG. 2;
wherein: 1-undisturbed soil; 2-prefabricating a gutter; 3-cutting; 4-waist table; 5-a waist-platform drainage ditch; 6-grouting an anchor rod; 7-reinforcing steel bar mesh; 8-pile platform; 9-anti-slide pile; 10-pavement side ditch; 11-road surface; 12-a convex beam; 13-prefabricating a concrete cover plate; 14-lattice beam; 15-concrete hollow brick; 16-a herbaceous plant; 17-a hoisting ring; 18-cement mortar; 19-grouting pipe; 20-an anchor cover; 21-an anchor head; 22-sash beam main reinforcement; 23-sash beam hoop beam; 24-concrete seal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application 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 present application and are not intended to limit the present application. All other examples, which can be obtained by a person skilled in the art without making any inventive step based on the examples in this application, are within the scope of protection of this application.
It should be understood by those skilled in the art that technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those having ordinary skill in the art to which this application belongs. "connected" or "coupled" and like terms are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect; the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, the above-described terms are not to be construed as limiting the invention.
Referring to fig. 1, an overexcavation cutting backfill structure is provided in the embodiment of the application, and comprises undisturbed soil 1, a prefabricated gutter 2, a cutting top 3, a waist platform 4, a waist platform drainage ditch 5, a grouting anchor rod 6, a reinforcing mesh 7, a pile platform 8, an anti-slide pile 9, a pavement side ditch 10, a pavement 11, a convex beam 12, a prefabricated concrete cover plate 13 and the like, wherein the cutting top 3 is provided with the prefabricated gutter 2 on the undisturbed soil 1 according to a design size, and the longitudinal drainage gradient of the prefabricated gutter 2 is 1.5%; a waist-platform drainage ditch 5 is arranged on the inner side of the waist platform 4, the waist-platform drainage ditch 5 is of a cast-in-place structure, and the longitudinal drainage gradient is 2%; the pile platform 8 is arranged at the bottom of the lower side slope of the overexcavation cutting and is arranged in a strip shape along the longitudinal direction of the road surface 11, a plurality of anti-slide piles 9 are arranged in the pile platform 8 according to the designed size and the designed interval, the heel of the pile platform 8 excavates the side ditch 10 of the road surface, the side ditch 10 of the road surface adopts a cast-in-place structure, the side ditch 10 of the road surface is arranged at two sides of the road surface 11, and the longitudinal drainage gradient is 5%; all exposed surfaces of the graben 3, the waist platform 4 and the pile platform 8 are all cast with a layer of 50cm thick fine stone concrete for sealing.
As shown in fig. 3-4, the convex beam 12 is poured on the overexcavation cut upper slope, the convex beam 12 is of a 'convex' structure, the convex beam 12 encloses the overexcavation cut upper slope into a plurality of square frames, the prefabricated concrete cover plate 13 is placed in the square frames, and the prefabricated concrete cover plate 13 fully seals the overexcavation cut upper slope.
As shown in fig. 5, the reinforcing mesh 7 is laid on the overexcavable cut lower slope, the reinforcing mesh 7 is fixed by the grouting anchor rod 6, the grouting anchor rod 6 is composed of cement mortar 18, a grouting pipe 19, an anchor cover 20 and an anchor head 21, and the grouting pipe 19 is inserted into the grouting hole of the overexcavable cut lower slope and is injected with the cement mortar 18 for anchoring; the anchor cover 20 presses the reinforcing mesh 7, and the anchor cover 20 and the reinforcing mesh 7 are bound together by using binding wires; the anchor head 21, the sash beam main reinforcement 22 and the sash beam hoop beam 23 are bound together, the sash beam 14 concrete fully encloses the anchor head 21, the sash beam main reinforcement 22 and the sash beam hoop beam 23, namely, all the steel bars in the beam are completely wrapped in the beam concrete to prevent corrosion.
As shown in fig. 2 and 6, the frame beams 14 surround the super-excavated cutting slope into a plurality of square frames, a fine aggregate concrete seal 24 with a thickness of 50cm is poured on the reinforcing mesh 7 in each square frame, concrete hollow bricks 15 are orderly stacked on the upper portions of the concrete seal 24, and herbaceous plants 16 are planted in the hollow bricks 15.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (9)

1. Overexcavation cutting backfill structure, its characterized in that includes: original state soil (1), a prefabricated gutter (2), a cutting top (3), a waist platform (4), a waist platform drainage ditch (5), a grouting anchor rod (6), a reinforcing mesh (7), a pile platform (8), a pavement (11), a convex beam (12) and a prefabricated concrete cover plate (13), wherein the pile platform (8) is arranged on each of two sides of the pavement (11), an anti-slide pile (9) is arranged on the pile platform (8), a pavement edge ditch (10) is arranged between the pavement (11) and the pile platform (8), the waist platform (4) is arranged above the pile platform (8), the cutting top (3) is arranged above the waist platform (4) and is positioned on the same plane with the original state soil (1), the prefabricated gutter (2) is arranged on the original state soil (1) of the cutting top (3), the waist platform drainage ditch (5) is arranged on the inner side of the waist platform (4), the convex beam (12) is poured on the upper slope of the over-excavated cutting, the prefabricated cover plate (13) is arranged in a slope region surrounded by the over-excavated cutting edge, and the reinforcing mesh (7) and the grid beam (14) are laid on the side slope below the overexcavation cutting, and the reinforcing mesh (7) is fixed through the grouting anchor rod (6).
2. The over cut backfill structure according to claim 1, wherein the over cut upper slope is a ramp between a cut top (3) and a kidney platform (4), and the over cut lower slope is a ramp between the kidney platform (4) and a pile platform (8).
3. The over cut trench backfill structure according to claim 1, wherein the kidney gutter (5) is a cast-in-place structure with a longitudinal drainage gradient of 2% and the prefabricated gutter (2) has a longitudinal drainage gradient of 1.5%.
4. The over-cut backfill structure according to claim 1, wherein the pile platform (8) is arranged at the bottom of the under-cut slope and is arranged in a strip shape along the longitudinal direction of the road surface (11), the anti-slide piles (9) are provided in plurality, and the anti-slide piles (9) are arranged in the pile platform (8) according to the designed size and spacing.
5. The over-cut cutting backfill structure according to the claim 1, characterized in that the excavation of the pavement side ditches (10) is arranged at the heel of the pile platform (8), the pavement side ditches (10) are of a cast-in-place structure, the pavement side ditches (10) are arranged on two sides of the pavement (11), and the longitudinal drainage gradient is 5%.
6. The overexcavation cutting backfilling structure according to claim 1, wherein the convex beam (12) is of a convex structure, the convex beam (12) encloses the overexcavation cutting upper slope into a plurality of square frames, the precast concrete cover plate (13) is placed in the square frames to totally enclose the overexcavation cutting upper slope, and the precast concrete cover plate (13) is provided with a hanging ring (17).
7. The overexcavation cutting backfill structure according to claim 1, wherein the grouting anchor rod (6) comprises cement mortar (18), a grouting pipe (19), an anchor cover (20) and an anchor head (21), the grouting pipe (19) is inserted into a grouting hole in the lower slope of the overexcavation cutting to inject the cement mortar (18) for anchoring, the anchor cover (20) presses the steel bar mesh (7) and is fixed by binding wires, the anchor head (21) is fixed with the sash beam main rib (22) and the sash beam hoop beam (23) in a binding manner, and the sash beam concrete covers the anchor head (21), the sash beam main rib (22) and the sash beam hoop beam (23) in a fully-closed manner.
8. The over-cut backfill structure according to the claim 1, wherein the frame beams (14) surround the under-cut slope into a plurality of square frames, a fine stone concrete seal (24) with the thickness of 50cm is poured on the reinforcing mesh (7) in each square frame, concrete hollow bricks (15) are orderly placed on the upper portions of the concrete seal (24), and herbaceous plants (16) are planted in the concrete hollow bricks (15).
9. The over-cut cutting backfill structure according to claim 1, wherein a layer of 50cm thick fine stone concrete is poured on all exposed surfaces of the cutting top (3), the waist platform (4) and the pile platform (8) for sealing.
CN202023080034.6U 2020-12-18 2020-12-18 Over-cut backfill structure Active CN214194586U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023080034.6U CN214194586U (en) 2020-12-18 2020-12-18 Over-cut backfill structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023080034.6U CN214194586U (en) 2020-12-18 2020-12-18 Over-cut backfill structure

Publications (1)

Publication Number Publication Date
CN214194586U true CN214194586U (en) 2021-09-14

Family

ID=77654347

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023080034.6U Active CN214194586U (en) 2020-12-18 2020-12-18 Over-cut backfill structure

Country Status (1)

Country Link
CN (1) CN214194586U (en)

Similar Documents

Publication Publication Date Title
CN103410167B (en) Three-dimensional reinforced rigid-soft composite ecological retaining wall and construction method
CN201245846Y (en) Clamshell excavator stirring concrete enclosure wall
CN103669399A (en) Concrete panel reinforced retaining wall and construction method thereof
CN104514216A (en) Fill channel anti-frost heaving and anti-seepage structure and construction method
CN110004991A (en) Underground structure anti-floating system and construction method based on raised type tangs plate
CN103334450B (en) Construction method of pile precast slab retaining wall with drainage ditch
CN109441456A (en) A kind of the tunnel structure and its construction method of weakness Facility-sliding strata
CN104499489B (en) Foundation pit construction method
CN214194586U (en) Over-cut backfill structure
CN210421127U (en) Tunnel engineering back pressure backfill structure for treating shallow buried bias voltage diseases
CN109763518A (en) A kind of construction method of basement post-pouring zone
CN110424331A (en) A kind of power station pin-connected panel water-drawing channel and construction method
CN206298869U (en) A kind of concrete guard wall structure of free drainage
CN108677925A (en) Half coercion underground continuous wall structure and its construction method
CN214883521U (en) Disconnect-type lock chamber structure
CN211200274U (en) Assembled channel shore protection structure
CN104480945B (en) A kind of foundation ditch reversed construction method
CN210086322U (en) Anti-floating underground garage in water-rich area
CN215289967U (en) Structure for diversion flood control of pre-buried culvert of dam foundation of flexible dam
CN213574100U (en) Pass shallow dark half-wall semi-arch protection structure of making of bias voltage tunnel of burying of accumulation body
CN211738217U (en) Pipeline passes through river course and buries laying structure
CN212223936U (en) A protective structure that is used for mountain area to adopt sand river course inner bridge pile foundation to expose disease
CN210482200U (en) Ecological bank protection structure of high and steep river course bank slope
CN214363925U (en) Cut water seepage ditch system
CN211815255U (en) Rock mass abrupt slope road structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant