CN211898410U - Put compound surface course supporting construction of slope soil nail wall - Google Patents
Put compound surface course supporting construction of slope soil nail wall Download PDFInfo
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- CN211898410U CN211898410U CN201922014175.9U CN201922014175U CN211898410U CN 211898410 U CN211898410 U CN 211898410U CN 201922014175 U CN201922014175 U CN 201922014175U CN 211898410 U CN211898410 U CN 211898410U
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Abstract
The utility model discloses a put compound surface course supporting construction of slope soil nail wall, including compound surface course and a plurality of soil nail, a plurality of soil nails are fixed respectively on the slope body, compound surface course is laid on the slope body surface, compound surface course is equipped with the through-hole that is used for supplying soil nail to pass, compound surface course is passed to the tail end of soil nail, with nut threaded connection, sticiss compound surface course on the slope body surface through the nut, compound surface course includes performance layer, structural layer, waterproof inverted filter, the skin layer that sets gradually by outer to interior. It can effectually avoid in the work progress because the fracture and the slumping that appear in the relatively poor traditional soil nail wall face layer of rainfall is great, soil property to reduce the influence to the bad border, reduce engineering cost, improve work efficiency.
Description
Technical Field
The utility model relates to a building engineering technical field especially relates to a be applicable to south China area and put compound surface course supporting construction of slope soil nail wall.
Background
At present, the soil nailing wall supporting technology is widely applied, and dense soil nails are applied to a slope surface in situ to strengthen the soil body in the process of excavating a side slope or a foundation pit layer by layer, and concrete is sprayed by a hanging net to stabilize the slope surface. However, in the construction engineering, the traditional soil nailing wall support has the following defects: 1. the labor and the machine work are intensive, and the cost cannot be reduced; 2, dust emission and serious mud pollution; 3, cement and steel bars are used at one time, so that the resource waste is large, and the later construction is influenced; 4. the quality of the sprayed concrete surface layer can not be guaranteed, the sprayed concrete surface layer is large in rainfall in south China, the soil protection slope with poor soil quality is prone to surface cracking and slumping, the surrounding environment can be polluted in the process of sprayed concrete, and the construction cost is high due to the fact that the concrete cost is high, therefore, the soil nailing wall structure in the prior art is contrary to the green development of energy conservation and environmental protection, and is not beneficial to soil body supporting in south China with much rain and poor soil quality (such as soft soil and sand-soil interaction stratum), so that how to adopt a novel green soil nailing wall surface layer for reducing environmental pollution and facilitating slope protection in areas with much rain and poor soil quality is a key problem to be solved in engineering.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a put compound surface course supporting construction of slope soil nail wall, it can effectually avoid in the work progress because the fracture and the slumping that the rainfall is great, the relatively poor traditional soil nail wall layer of soil property appears to reduce the influence to the bad border, reduce engineering cost, improve work efficiency.
The utility model discloses a realize like this: the utility model discloses a put compound surface course supporting construction of slope soil nail wall, including compound surface course and a plurality of soil nail, a plurality of soil nails are fixed respectively on the slope body, compound surface course is laid on the slope body surface, compound surface course is equipped with the through-hole that is used for supplying soil nail to pass, compound surface course is passed to the tail end of soil nail, with nut threaded connection, sticiss compound surface course on the slope body surface through the nut, compound surface course includes performance layer, structural layer, waterproof inverted filter, the skin layer that sets gradually by outer to interior.
Furthermore, the single-layer materials with various functions of the composite surface layer are pressed and processed to form the composite surface layer with the composite function supporting effect.
Further, the performance layer is used for protecting the inner layer material; the structural layer is used as a surface layer framework, has certain tensile strength and rigidity, mainly bears the pressure of a soil body, and plays a role in stabilizing a side slope; the waterproof reverse filtering layer is used for preventing external water from permeating, intercepting small-diameter soil particles and sand particles, has a reverse filtering function, and maintains the stability of the surface of the side slope together with the structural layer; the skin layer is used for closely attaching the surface layer and the soil body.
Furthermore, the performance layer is made of a multi-woven material, is mainly used for beautifying the construction environment and is coated with corrosion-resistant coating, so that the aging of the structure layer is prevented, and the durability of the structure is improved; the structure layer is made of high polymer fiber materials and is a stressed structure of the surface layer, the structure layer mainly bears the soil pressure on the soil nail wall surface layer, different tensile strength indexes are selected according to different soil layer properties, the waterproof reverse filtering layer is made of geotextile materials and has one-way seepage performance, water outside the surface layer is difficult to permeate into a soil body, underground water in the surface layer can be smoothly discharged, and meanwhile, the soil body behind the surface layer is prevented from losing; the skin layer is made of thin affinity materials, so that the surface layer is closely attached to the soil body.
Further, this put compound surface course supporting construction of slope soil nail wall still includes connecting piece and mounting, the mounting cover is at the tail end of soil nail, and is located between compound surface course and the nut, sticiss mounting, compound surface course on the slope body surface through the nut, and the connecting piece is connected between the mounting, forms network structure.
Furthermore, a connecting hole for the connecting piece to pass through is formed in the fixing piece, and the connecting piece connects the soil nails into a whole through the hole in the fixing piece.
Further, the composite surface layer is fixed with the slope body through a steel bar U-shaped clamp.
The utility model has the advantages that: the utility model discloses in the south China area that rainfall is great, the soil property is relatively poor, for solving soil nail wall at strutting the in-process, the easy fracture that appears of netting sprayed concrete surface course, slumping, and polluted environment's problem, the utility model provides a solution replaces netting sprayed concrete surface course with compound surface course, and compound surface course mainly includes: the structure can effectively avoid cracking and slumping of the traditional soil nail wall surface layer due to large rainfall and poor soil quality in the construction process, reduce the influence on the environment, reduce the construction cost and improve the working efficiency.
The utility model discloses can solve because the rainfall is big, the relatively poor soil body bank protection of soil property sprays the fracture that concrete nail wall layer appears, sink, or the dust that produces in the work progress, or the building rubbish that produces after the use, produce very big influence to constructor and all ring edge borders, consider in the environmental impact, energy resource consumption and cost, the society in the aspect of the time limit for a project, economic benefits, this technical scheme has the design and is simple and convenient with the construction, the cost is practiced thrift, the technical maturity, maintain advantages such as simple, it is great to be applicable to the rainfall, the relatively poor regional side slope of soil property struts engineering, good application prospect has in green side slope protection engineering.
Drawings
Fig. 1 is a vertical view of the composite surface layer supporting structure of the soil nailing wall of the present invention;
FIG. 2 is a cross-sectional view of the composite surface layer supporting structure of the soil nailing wall of the present invention;
fig. 3 is a cross-sectional view of the composite surface layer of the present invention.
In the attached drawing, 1 is a soil nail, 12 is a nut, 2 is a composite surface layer, 21 is a performance layer, 22 is a structural layer, 23 is a waterproof reverse filtration layer, 24 is a skin layer, 3 is a connecting piece, and 4 is a fixing piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, this embodiment discloses a put compound surface course supporting construction of slope soil nail wall, including compound surface course 2 and a plurality of soil nails 1, a plurality of soil nails 1 are fixed respectively on the slope body, compound surface course 2 is laid on the slope body surface, compound surface course 2 is equipped with the through-hole that is used for supplying soil nails to pass, compound surface course 2 is passed to the tail end of soil nails 1, with nut 12 threaded connection, sticiss compound surface course 2 on the slope body surface through nut 12, compound surface course 2 includes performance layer 21, structural layer 22, waterproof inverted filter 23, the skin layer 24 that sets gradually from outside to inside. The composite surface layer is formed by compounding the above factories.
Further, this put compound surface course supporting construction of slope soil nail wall still includes connecting piece 3 and mounting 4, and the mounting is fixed at the soil nail end, and the hole on the connecting piece passes through the mounting, connects into a whole with the soil nail, domatic whole atress. This embodiment will fixing piece 4 cover is at the tail end of soil nail 1, and is located between compound surface course 2 and the nut 12, sticiss fixing piece 4, compound surface course 2 on the slope body surface through nut 12, and connecting piece 3 is connected between fixing piece 4, forms network structure.
Furthermore, a connecting hole for the connecting piece to pass through is formed in the fixing piece 4, and the connecting piece connects the soil nails into a whole through the hole in the fixing piece. Two ends of the connecting piece are fixed on the soil nails.
The fixing member 4 serves to connect the soil nails 1 and the connecting member 3. The fixing member 4 is made of high-strength steel and subjected to rust prevention treatment.
This structure sets up the connecting piece and is used for fixed whole surface course and connects soil nail and transmit soil nail with the power that the surface course receives.
The connecting piece can be a reinforcing rib used for fixing, the reinforcing rib surrounds the tail end of the soil nail to enable the soil nail to be integrally stressed, and certainly, the reinforcing rib can directly penetrate through the fixing piece hole and does not surround.
According to design parameters and the condition of a construction site, relevant components such as the soil nails 1, the composite surface layer 2 and the like are prefabricated in a factory. When the soil nail wall is constructed, firstly, a hole is drilled in a slope body, and soil nails are placed or directly driven into the soil nails 1 by using machinery; then lay compound surface course, the surface course need hug closely the domatic and lay, the in-process of laying, for make the surface course hug closely the domatic and use reinforcing bar U type card to insert domatic fixed surface course, for better giving the soil nail with the surface course atress transmission, put into mounting 4, install the connecting piece between the soil nail, later install fixed component such as nut 12, guarantee that the connecting piece sticiss the surface course, make it form whole atress structure with soil nail system 1 and compound surface course system 2 connection.
Further, the composite surface layer 2 of the present embodiment is composed of, from outside to inside, a performance layer 21, a structural layer 22, a waterproof reverse filter layer 23, and a skin layer 24. The composite surface layer with the composite function supporting effect is formed by pressing and processing a plurality of single-layer materials with different functions in a factory, and different types of material strength, pressing and processing modes can be selected according to actual conditions.
The anchor nail (soil nail) is a fixed surface layer and ensures the sliding stability of the whole slope. The performance layer 21 is made of a multi-woven material, is mainly used for beautifying the construction environment and is coated with corrosion-resistant coating, so that the aging of a structural layer can be prevented, and the structural durability is improved; the structural layer 22 is made of high polymer fiber materials, is a stressed structure of the surface layer, mainly bears the soil pressure on the soil nailing wall surface layer, selects different tensile strength indexes according to different soil layer properties, and the waterproof reverse filtering layer 23 is mainly made of geotextile materials and has one-way seepage performance, so that water outside the surface layer is difficult to permeate into a soil body, underground water in the surface layer can be smoothly discharged, and meanwhile, the loss of the soil body behind the surface layer is prevented; the skin layer 24 is mainly used for enabling the composite surface layer to be more closely attached to the soil body.
The performance layer 21 mainly plays a role in beautifying the construction environment, and only needs to ensure the durability of water resistance, sunlight resistance and the like to prevent the structural layer from being corroded and damaged, and uses corrosion-resistant paint; the structural layer 22 mainly bears the soil pressure on the soil nail wall surface layer and keeps the stability of the rock-soil body, so that the structural layer is a high polymer fiber material with good tensile resistance; the waterproof reverse filtering layer 23 must contain dense holes and have one-way seepage performance, so that the rapid outflow of soil underground water behind a slope and the interception of soil particles are ensured, and meanwhile, the function of intercepting the seepage of water outside the slope is realized under the conditions of rainstorm and the like; the skin layer 24 must be a thin, compatible material to enable the facing layer to be in close contact with the soil.
The method comprises the following specific steps:
step 1, prefabricating and producing components such as a soil nailing wall composite surface layer and the like;
step 3, covering the soil nailing wall composite surface layer on the soil body, and paving the soil nailing wall composite surface layer close to the soil body surface layer;
and 4, fixing the surface layer by using a force transmission device and fixing the surface layer on the soil nails. Forming a composite surface layer combination system of the soil nailing wall.
And after the service period of the composite surface layer is finished, the detachable surface layer is used for the next construction section or the next engineering project.
The composite surface layer system of the soil nail wall has almost zero pollution to the environment no matter during construction or after construction, and even can beautify the engineering environment; the low price of the material, the rapidity of construction, the recovery characteristic of the material and the like directly or indirectly reduce the construction cost, accelerate the construction period and reduce the environmental pollution.
The utility model discloses improve traditional soil nail wall side slope protection technique, and according to south China area rainfall is big, the relatively poor circumstances such as soil property, the utility model discloses a be applicable to south China area and put slope soil nail wall composite surface layer support technique, the surface layer adopts light polymer surface layer at mill's composite pressing, replace the hanging net and spout the mixed surface layer, pollution abatement, reduce material waste, the surface layer construction is green, the environmental protection, it is convenient, this patent is strutted to soil nail wall side slope, the method is simple accurate, practice thrift the cost, the technology is mature, the prospect is wide, and is profitable, is a neotype green composite surface layer soil nail wall protective structure system who replaces traditional soil nail wall completely.
The utility model discloses a be applicable to south China area and put slope soil nail wall composite surface layer and strut technical main advantage: (1) high work efficiency, quick sealing and short construction period; the construction is simple and convenient and fast, the requirement of large-scale machinery is few, the field installation can be finished by manpower, the field netting, the manufacturing of the reinforcement cage, the formwork support and the concrete curing time are saved, the earth excavation surface can be quickly sealed, and the weather influence is avoided. (2) Green and environment-friendly; the energy consumption is low, the pollution is small, the materials are saved, the environment is protected, excessive mud, waste gas and other wastes are not generated, the production of materials with large pollution such as cement and reinforcing steel bars can be reduced, and related materials can be recycled. (3) The structure is advantageous; the surface material inner layer has the effect of a reverse filter layer, and soil in the slope or a foundation is not taken away when seepage water in the slope flows out, so that potential danger caused by long-time soaking of soil behind the slope can be prevented. Dome surface cancels the drain pipe, and the effect is better. (4) Economy and applicability; on the basis of not changing the traditional theoretical mechanism, the net-spraying surface layer is replaced, compared with the traditional spray anchor support, the construction cost is low, the application range is wide, and a certain aesthetic function is considered. (5) The safety and the reliability are realized; the components are prefabricated in a factory, quality inspection is facilitated, quality control according to standards is facilitated, standardization and process are strong, weather influence is basically avoided when the components are installed on site, and quality is easy to guarantee. The utility model discloses a, great social and economic benefits has.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a put compound surface course supporting construction of slope soil nail wall which characterized in that: including compound surface course (2) and a plurality of soil nail (1), a plurality of soil nail (1) are fixed respectively on the slope body, compound surface course (2) are laid on the slope body surface, compound surface course (2) are equipped with the through-hole that is used for supplying the soil nail to pass, compound surface course (2) are passed to the tail end of soil nail (1), with nut (12) threaded connection, sticiss compound surface course (2) on the slope body surface through nut (12), compound surface course (2) include by outer performance layer (21), structural layer (22), waterproof inverted filter (23), skin layer (24) that set gradually to interior.
2. The structure of claim 1, wherein: the performance layer (21) is made of multi-woven materials; the structural layer (22) is made of high polymer fiber materials, and the waterproof reverse filter layer (23) is made of geotextile materials; the skin layer (24) is made of a thin, substantive material.
3. The structure of claim 1, wherein: still include connecting piece (3) and mounting (4), mounting (4) cover is at the tail end of soil nail (1), and is located between compound surface course (2) and nut (12), sticiss mounting (4), compound surface course (2) on the slope body surface through nut (12), and connecting piece (3) are connected between mounting (4), form network structure.
4. The structure of claim 3, wherein: the fixing piece (4) is provided with a connecting hole for the connecting piece to pass through, and the connecting piece connects a plurality of soil nails into a whole through the hole in the fixing piece.
5. The structure of claim 1, wherein: the composite surface layer is fixed with the slope body through a steel bar U-shaped clamp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922014175.9U CN211898410U (en) | 2019-11-20 | 2019-11-20 | Put compound surface course supporting construction of slope soil nail wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922014175.9U CN211898410U (en) | 2019-11-20 | 2019-11-20 | Put compound surface course supporting construction of slope soil nail wall |
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| CN211898410U true CN211898410U (en) | 2020-11-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262595A (en) * | 2022-08-24 | 2022-11-01 | 中建三局第三建设工程有限责任公司 | Novel assemble excavation supporting suitable for fine sand layer |
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2019
- 2019-11-20 CN CN201922014175.9U patent/CN211898410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262595A (en) * | 2022-08-24 | 2022-11-01 | 中建三局第三建设工程有限责任公司 | Novel assemble excavation supporting suitable for fine sand layer |
| WO2024041158A1 (en) * | 2022-08-24 | 2024-02-29 | 中建三局第三建设工程有限责任公司 | Novel assembled foundation pit support suitable for fine sand layer |
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