CN216839490U - Rigid-flexible composite surface layer soil nailing wall - Google Patents
Rigid-flexible composite surface layer soil nailing wall Download PDFInfo
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- CN216839490U CN216839490U CN202220553312.5U CN202220553312U CN216839490U CN 216839490 U CN216839490 U CN 216839490U CN 202220553312 U CN202220553312 U CN 202220553312U CN 216839490 U CN216839490 U CN 216839490U
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- rigid
- soil
- soil nailing
- flexible
- rib
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- 239000002689 soil Substances 0.000 title claims abstract description 107
- 239000002344 surface layer Substances 0.000 title claims abstract description 35
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 239000007943 implant Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000004746 geotextile Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 2
- 238000009435 building construction Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 10
- 229920000049 Carbon (fiber) Polymers 0.000 description 7
- 239000004917 carbon fiber Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 239000011378 shotcrete Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 241001079814 Symphyotrichum pilosum Species 0.000 description 1
- 235000004224 Typha angustifolia Nutrition 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 is laid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a rigid-flexible composite surface layer soil nailing wall, which belongs to the technical field of foundation pit engineering in building construction, and comprises a flexible surface layer, a rigid framework, a rib beam, a soil nailing component and the like, wherein the flexible surface layer is provided with an opening and is laid on the slope surface of a foundation pit; the rigid framework is provided with a plurality of pressing plates which can be furled in a roll; the rib beam is pressed on the upper part of the rigid framework and is detachably connected with the pressing plate; soil nail subassembly, including a plurality of soil nail body of rod, the one end of the soil nail body of rod is equipped with implants end, the other end of the soil nail body of rod has the nip, implant the end and pass in implanting the foundation ditch slope soil body behind the flexible surface course, just the nip butt the rib roof beam, in order to realize the fixed of rib roof beam. The utility model provides a rigid-flexible composite surface layer soil nailing wall has solved the problem that traditional soil nailing wall can not be retrieved reuse.
Description
Technical Field
The utility model belongs to the technical field of construction foundation ditch engineering, concretely relates to compound surface course soil nail wall of rigid-flexible.
Background
The soil nailing wall is applied to soil slope supporting engineering such as building foundation pit supporting, the traditional soil nailing wall is a supporting structure consisting of a soil nailing group, a sprayed concrete surface layer and an in-situ soil body, soil nails are embedded in a hole drilled in the side wall of a foundation pit during construction, then a surface layer reinforcing mesh is bound and fixed on the soil nails, and then the sprayed concrete surface layer forms the soil nailing wall supporting structure.
The traditional soil nailing wall supporting structure has the following defects: (1) a large amount of dust can be generated when the concrete surface layer is sprayed, the environmental pollution is large, the sprayed concrete surface layer needs to be maintained, the maintenance time is determined by the environmental temperature condition, and the construction period is prolonged; (2) the foundation pit belongs to temporary engineering, and the soil nail wall is directly buried in the soil body in subsequent construction, can not be recycled, and belongs to disposable input, so that the waste of a large amount of materials and soil pollution are caused.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a rigid-flexible composite surface layer soil nailing wall aims at solving traditional soil nailing wall and directly buries the soil body, the problem of recoverable reuse.
In order to achieve the above object, the utility model adopts the following technical scheme: the rigid-flexible composite surface layer soil nailing wall comprises a flexible surface layer, is provided with an opening and is laid on the slope surface of a foundation pit;
the rigid framework is provided with a plurality of pressing plates which can be furled in a roll mode, and the pressing plates are pressed on the flexible surface layer at intervals along a first direction;
the rib beams are arranged at intervals along a second direction, the first direction and the second direction are two directions which form an included angle in the slope surface of the foundation pit, and each rib beam is pressed on the upper part of the rigid framework and is detachably connected with the pressing plate;
soil nail subassembly, including a plurality of soil nail body of rod, the one end of the soil nail body of rod is equipped with implants end, the other end of the soil nail body of rod has the nip, implant the end and pass in implanting the foundation ditch slope soil body behind the flexible surface course, just the nip butt the rib roof beam, in order to realize the fixed of rib roof beam.
As a possible implementation manner, the pressfitting portion is the bearing plate, the bearing plate has the confession the through-hole that the soil nailing body of rod passed, soil nail subassembly still includes the retaining member, the retaining member with the setting of soil nailing body of rod one-to-one, the retaining member with the soil nail subassembly links to each other in order to realize the bearing plate butt is fixed the rib roof beam.
As a possible implementation, the first direction is perpendicular to the second direction, the pressing plate extends along the second direction, and the rib extends along the first direction.
As a possible realization, the locking member is an anchorage.
As a possible implementation mode, the rib beam is a channel steel, and the rib beam is further provided with a through hole which is arranged at intervals and sleeved on the soil nailing rod body.
As a possible implementation manner, the pressing plate is a square steel tube, the rigid framework further comprises at least two ropes penetrating and connected with the square steel tube, and the rib beam is pressed on the square steel tube.
As a possible implementation manner, the rigid-flexible composite surface layer soil nail wall further comprises binding wires, and the rib beam and the square steel pipe are detachably and fixedly connected through the binding wires.
As a possible implementation, the flexible cover is geotextile.
The utility model provides a compound surface course soil nail wall of rigid and flexible, compared with the prior art, one end through at the soil nail body of rod is equipped with the implantation end, the fastness of the soil nail body of rod and the foundation ditch soil body has been strengthened, rigid skeleton presses and establishes on flexible surface course, and link firmly with the soil nail body of rod through the rib roof beam and compress tightly rigid skeleton and flexible surface course domatic at the foundation ditch, the maintenance of concrete surface course has been avoided adopting to spray, the quick detachable reuse of rigid skeleton and flexible surface course, the cost is practiced thrift in simple preparation, secondly, rigid skeleton and flexible surface course all can wind into the roll, be convenient for transport.
Drawings
Fig. 1 is a structural diagram of a rigid-flexible composite surface layer soil nailing wall provided by an embodiment of the present invention;
fig. 2 is a cross-sectional view of a rigid-flexible composite surface soil nailing wall provided by an embodiment of the present invention;
FIG. 3 is an expanded view of the rigid skeleton of FIG. 1;
FIG. 4 is a rolled up view of the rigid skeleton of FIG. 1;
FIG. 5 is a schematic view of the anchor of FIG. 1.
In the figure: 100. a flexible facing; 200. a rigid skeleton; 210. a square steel pipe; 220. a rope; 300. a rib beam; 400. a soil nail assembly; 410. a soil nailing rod body; 420. a pressure bearing plate; 430. a locking member; 440. an anchorage device.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 5, an embodiment of the rigid-flexible composite surface soil nailing wall provided by the present invention will now be described. The rigid-flexible composite surface layer soil nailing wall is used for protecting a foundation pit side slope. The embodiment of the utility model provides a rigid-flexible composite surface layer soil nailing wall includes flexible surface layer 100, rigid skeleton 200, rib 300 and soil nailing component 400.
The flexible surface layer 100 is provided with openings and is laid on the slope surface of the foundation pit.
The rigid frame 200 has a plurality of pressure plates that can be rolled up, and each pressure plate is pressed on the flexible surface layer 100 at intervals along the first direction.
The rib beam 300 has a plurality of intervals along the second direction, the first direction and the second direction are two directions that are arranged at an included angle in the slope of the foundation pit, and each rib beam 300 is pressed on the upper part of the rigid framework 200 and is detachably connected with the pressing plate.
The soil nailing assembly 400 comprises a plurality of soil nailing rod bodies 410, one end of each soil nailing rod body 410 is provided with an implanting end, the other end of each soil nailing rod body 410 is provided with a pressing part, the implanting end penetrates through the flexible surface layer 100 and then is implanted into the soil on the side slope of the foundation pit, and the pressing parts are abutted to the rib beam 300 so as to fix the rib beam 300.
The end of implanting is the rigidity body of rod or the flexible body of rod, and during soil nail body of rod 410 implanted the foundation ditch soil body, through with soil nail slip casting anchor body or with soil body interact, realize the fastening of soil nail body of rod 410 and foundation ditch soil body, soil nail body of rod 410 can not become flexible easily and is extracted in the foundation ditch soil body.
The flexible surface layer 100 is laid on the slope of the foundation pit, but the rigidity is insufficient, and the soil pressure of the sliding soil body cannot be resisted, so that the rigid framework 200 needs to be pressed on the flexible surface layer 100 to form a rigid-flexible composite surface.
The utility model provides a compound surface course soil nail wall of rigid-flexible, compared with the prior art, one end through at the soil nail subassembly is equipped with the implantation end, the fastness of soil nail subassembly and the foundation ditch soil body has been strengthened, rigid skeleton is pressed and is established on flexible surface course, and compress tightly rigid skeleton and flexible surface course domatic at the foundation ditch through linking firmly of rib roof beam and soil nail subassembly, avoided adopting the shotcrete surface course to maintain, the quick detachable reuse of rigid skeleton and flexible surface course, the cost is practiced thrift in simple preparation, secondly, rigid skeleton and flexible surface course all can roll into the roll, be convenient for transport.
In some embodiments, referring to fig. 2, the pressing portion is a bearing plate 420, the bearing plate 420 has a through hole for the soil nailing rod 410 to pass through, the soil nailing assembly 400 further includes a locking member 430, the locking member 430 is disposed corresponding to the soil nailing rod 410, and the locking member 430 is connected to the soil nailing assembly 400 to enable the bearing plate 420 to abut against the fixing rib 300.
The rib beam 300 is sleeved on the soil nailing rod body 410, after the rib beam 300 is pressed with the rigid skeleton 200, the bearing plate 420 is sleeved on the soil nailing rod body 410, and then the locking piece 430 is sleeved on the soil nailing rod body 410 and locks the rib beam 300, thereby compressing the rigid skeleton 200 and the flexible surface layer 100.
The retaining member 430 is connected to the soil nail assembly 400, and may be in a threaded connection or an anchoring connection, that is, the end of the soil nail rod 410 located outside the foundation pit soil body may be in an external thread structure or an anchoring end, and then the retaining member 430 is a corresponding anchor head nut or an anchor 440.
In some embodiments, referring to fig. 1, the first direction is perpendicular to the second direction, the platen extends in the second direction, and the rib 300 extends in the first direction.
In some embodiments, referring to FIG. 5, retaining member 430 is an anchor 440.
In some embodiments, referring to fig. 1 and 2, the rib 300 is a channel, and the rib 300 further has through holes disposed at intervals and used for being sleeved on the soil nailing rod body 410.
In some embodiments, referring to fig. 2, the soil nailing rod 410 is a rigid rod or a flexible rod, specifically, the rigid rod is a twisted steel and the flexible rod is a carbon fiber rope.
In some embodiments, referring to fig. 1, 3 and 4, the pressing plate is a square steel tube 210, the rigid framework 200 further includes at least two ropes 220 penetrating and connecting the square steel tube 210, preferably, the ropes 220 are carbon fiber ropes, and the rib 300 is pressed on the square steel tube 210.
Galvanized square steel pipe 210 and carbon fiber rope are selected for use in rigid frame 200 because galvanized square steel pipe 210 material is lighter, corrosion resistance is good, and carbon fiber rope convenient to use, intensity is higher, and corrosion resistance is strong, has fabulous toughness and bendability. The carbon fiber ropes are wound and connected with the square steel tubes 210, so that the square steel tubes 210 are integrated, and the integral rigidity of the rigid framework 200 is greatly improved.
In some embodiments, please refer to fig. 1, the rigid-flexible composite surface soil nailing wall provided by the embodiment of the present invention further includes a tie wire, and the rib beam 300 is detachably and fixedly connected with the square steel pipe 210 through the tie wire.
In some embodiments, referring to fig. 1, flexible cover 100 is a geotextile. The geotextile is corrosion resistant, has better water permeability and good filtering effect.
In some embodiments, when the rigid-flexible composite surface layer soil nailing wall provided by the embodiment of the invention is constructed, the following construction method is followed:
s100, firstly, excavating foundation pits in layers according to construction requirements, finishing a side slope after excavation is finished, ensuring that the slope surface of the side slope has no sharp objects and the slope meets the design requirements, then positioning and paying off are carried out, and the positions of soil nail holes are determined according to the positioning and paying off principle according to the design drawing.
S200, according to the paying-off position, the soil nailing rod bodies 410 are implanted into the side slope soil body, then the flexible surface layer 100, namely geotextile, is laid, holes for the soil nailing rod bodies 410 to penetrate through are reserved on the geotextile in advance according to a design drawing, the geotextile is rolled before construction, the geotextile is laid during site construction, and the holes reserved on the geotextile correspond to the soil nailing rod bodies 410 one by one.
After S300 geotextile is laid, a rigid framework 200 consisting of a galvanized square steel pipe 210 and a carbon fiber rope (rope 220) is laid on the outer side of the geotextile, the rigid framework 200 is in a roll shape, the rigid framework 200 is unfolded and pressed on the geotextile during construction, and adjacent rigid frameworks 200 are connected with each other through the carbon fiber rope.
In S400, a rib 300 is provided outside the rigid frame 200, and the rib 300 is perpendicular to the longitudinal direction of the square steel pipe 210 of the rigid frame 200. The rib beam 300 is a channel steel, through holes are arranged at the web plate position of the rib beam 300, and the distance between every two adjacent through holes is 0.5m or a multiple of 0.5 m. The rib 300 and the square steel tube 210 in the rigid frame 200 are fastened and fixed by using a binding wire (iron wire) at the intersection position of the rib 300 and the square steel tube 210. The rib beam 300 and the soil nailing rod body 410 are provided with locking members 430 at the crossing positions, and the flexible surface layer 100, the rigid frame 200, the rib beam 300 and the bearing plate 420 are fixed on the side slope of the foundation pit by using the locking members 430 (locking nuts or anchors 440).
And S500, after the construction is finished, loosening the locking member 430, disassembling the bearing plate 420 and the rib beam 300, then sequentially rolling up the rigid framework 200 and the flexible surface layer 100 for recycling, dismantling the rigid framework and the flexible surface layer according to the principle from bottom to top and from inside to outside during recycling, and applying all recycled components to the next foundation pit supporting engineering.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Rigid-flexible composite surface layer soil nailing wall, its characterized in that includes:
the flexible surface layer is provided with openings and is laid on the slope surface of the foundation pit;
the rigid framework is provided with a plurality of pressing plates which can be furled in a roll mode, and the pressing plates are pressed on the flexible surface layer at intervals along a first direction;
the rib beams are arranged at intervals along a second direction, the first direction and the second direction are two directions which form an included angle in the slope surface of the foundation pit, and each rib beam is pressed on the upper part of the rigid framework and is detachably connected with the pressing plate;
soil nail subassembly, including a plurality of soil nail body of rod, the one end of the soil nail body of rod is equipped with implants end, the other end of the soil nail body of rod has the nip, implant the end and pass in implanting the foundation ditch slope soil body behind the flexible surface course, just the nip butt the rib roof beam, in order to realize the fixed of rib roof beam.
2. The rigid-flexible composite surface soil nailing wall of claim 1, wherein the pressing part is a bearing plate, the bearing plate is provided with through holes for the soil nailing rod bodies to pass through, the soil nailing assembly further comprises locking pieces, the locking pieces are arranged in one-to-one correspondence with the soil nailing rod bodies, and the locking pieces are connected with the soil nailing assembly so as to realize that the bearing plate abuts against and fixes the rib beams.
3. The rigid-flexible composite faced nailed wall of claim 1, wherein the first direction is perpendicular to the second direction, the pressure plates extend in the second direction, and the ribs extend in the first direction.
4. The rigid-flexible composite faced soil nailed wall of claim 2, wherein the retaining member is an anchor.
5. The rigid-flexible composite faced soil nailing wall of claim 2, wherein the ribbed beam is a channel steel, and further comprises perforations arranged at intervals and used for being sleeved on the soil nailing rod body.
6. The rigid-flexible composite surface layer soil nailing wall according to any one of claims 1 to 5, wherein the pressing plate is a square steel pipe, the rigid framework further comprises at least two ropes which are arranged in a penetrating manner and connected with the square steel pipe, and the rib beam is pressed on the square steel pipe.
7. The rigid-flexible composite face layer soil nailing wall according to claim 6, further comprising binding wires, wherein the rib beam and the square steel pipe are detachably and fixedly connected through the binding wires.
8. The rigid-flexible composite faced nailed wall of any one of claims 1-5, wherein the flexible facing is geotextile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220553312.5U CN216839490U (en) | 2022-03-14 | 2022-03-14 | Rigid-flexible composite surface layer soil nailing wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220553312.5U CN216839490U (en) | 2022-03-14 | 2022-03-14 | Rigid-flexible composite surface layer soil nailing wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216839490U true CN216839490U (en) | 2022-06-28 |
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ID=82096322
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220553312.5U Expired - Fee Related CN216839490U (en) | 2022-03-14 | 2022-03-14 | Rigid-flexible composite surface layer soil nailing wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216839490U (en) |
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2022
- 2022-03-14 CN CN202220553312.5U patent/CN216839490U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
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