CN111705817A - Green assembled support construction method - Google Patents
Green assembled support construction method Download PDFInfo
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- CN111705817A CN111705817A CN202010571153.7A CN202010571153A CN111705817A CN 111705817 A CN111705817 A CN 111705817A CN 202010571153 A CN202010571153 A CN 202010571153A CN 111705817 A CN111705817 A CN 111705817A
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- slope
- green
- soil
- construction method
- support construction
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention relates to the field of building construction, aims to solve the problems of low efficiency and poor environmental protection of slope excavation support in the prior art, and provides a green assembly type support construction method which comprises the following steps: trimming a slope surface of the side slope; drilling; holes distributed on the construction surface are used for arranging soil nails; constructing soil nails; arranging soil nails in the holes and grouting for fixing; an opening for exposing the soil nail; paving a green supporting surface layer; the green supporting surface layer is formed by combining an inner layer, a protective layer and a clamping layer, penetrates through the soil nail exposed sections and covers the trimmed slope surface; installing a slope anchor and a steel wire rope; on the slope surface, the end of the soil nail is wound by a circle through the reinforcing rib and is tensioned, then the steel base plate is arranged for fixation, and finally the steel base plate is fastened by the buckle to compress the steel wire rope so as to fixedly connect the green supporting surface layer to the outer surface of the side slope. The invention has the advantages of environmental protection and high construction efficiency.
Description
Technical Field
The invention relates to the field of building construction, in particular to a green assembly type supporting construction method.
Background
The construction projects have the problems of high-risk construction operation such as road high slope construction, bridge deep foundation pit construction, comprehensive pipe gallery deep foundation pit construction and the like, and possibly short construction period and heavy tasks.
Disclosure of Invention
The invention aims to provide a green assembly type supporting construction method, which aims to solve the problems of low efficiency and poor environmental protection of side slope excavation supporting in the prior art.
The embodiment of the invention is realized by the following steps:
a green assembled support construction method comprises the following steps:
trimming a slope surface of the side slope; removing loose stones, scum and dust on the surface by compressed air, and wetting the rock surface by a movable fog gun machine to keep the rock surface at a certain humidity;
drilling; holes distributed on the construction surface are used for arranging soil nails;
constructing soil nails; arranging soil nails in the holes and grouting for fixing; an opening for exposing the soil nail;
paving a green supporting surface layer; the green supporting surface layer is formed by combining an inner layer, a protective layer and a clamping layer, penetrates through the soil nail exposed sections and covers the trimmed slope surface;
installing a slope anchor and a steel wire rope; on the slope surface, the end of the soil nail is wound by a circle through the reinforcing rib and is tensioned, then the steel base plate is arranged for fixation, and finally the steel base plate is fastened by the buckle to compress the steel wire rope so as to fixedly connect the green supporting surface layer to the outer surface of the side slope.
The green assembled supporting construction method in the scheme has the following beneficial effects:
(1) the used material is green, environment-friendly, light, pollution-free and beautiful;
(2) the work efficiency is high, the factory prefabrication and the assembly are simple, the per-capita capacity is improved by 2 times by combining the use of small-sized assembly tools, the limitation of weather and material supply environment is avoided, and the overall construction period can be saved by 2 times compared with the traditional construction period;
(3) the manufacturing cost is not higher than that of the traditional net spraying soil nailing wall, and the saving is about 10 percent.
In one embodiment:
the soil nail construction adopts reinforcing steel bars with the diameter of 22mm, the row spacing is 1.5m multiplied by 1.5m, the length is 6m, and the construction is carried out from top to bottom according to the foundation pit; the soil nail is arranged with an included angle of 20 degrees with the horizontal direction.
In one embodiment:
for two sections of side slopes with intermediate platforms, vertically driving ground anchors into the tops and the bottoms of the two sections of side slopes respectively, and connecting the ground anchors with soil nails through steel wire ropes;
the slope foot is connected with the ground anchor by concrete to perform presser foot treatment.
The integrity and the stability of the side slope can be improved by respectively arranging the sub ground anchors at the top and the bottom of the two sections of the side slope and connecting the sub ground anchors with the soil nails through the steel wire ropes.
In one embodiment:
the ground anchor adopts a twisted steel bar with the length of 1m and the diameter of 25mm, the horizontal row spacing is 1.5m multiplied by 1.5m, and the ground anchor is equidistant to the soil nails.
In one embodiment:
the size of the concrete section is larger than 300mm multiplied by 80 mm.
In one embodiment:
soil nails at the top of the slope, the middle platform and the slope toe are beaten by small machines; the surface layer is installed and fixed on the soil nail after the flanging treatment of the slope top, the middle platform and the slope toe.
In one embodiment:
the width of the slope top flange is not less than 1m, and the width of the middle platform and the slope toe flange is not less than 0.8 m.
In one embodiment:
drainage ditches are arranged at the top and the foot of the slope.
In summary, the green fabricated support construction method in the scheme has the following beneficial effects:
(1) the used material is green, environment-friendly, light, pollution-free and beautiful;
(2) the work efficiency is high, the factory prefabrication and the assembly are simple, the per-capita capacity is improved by 2 times by combining the use of small-sized assembly tools, the limitation of weather and material supply environment is avoided, and the overall construction period can be saved by 2 times compared with the traditional construction period;
(3) the manufacturing cost is not higher than that of the traditional net spraying soil nailing wall, and the saving is about 10 percent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings referred to in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of a soil nail installed on a slope;
FIG. 2 is a schematic view of a green supporting surface layer connected and fixed by soil nails and steel wire ropes;
fig. 3 is a schematic view of a slope with ground anchors.
Icon: soil nail 11, green supporting surface layer 12, ground anchor 13, wire rope 14, escape canal 15, top of slope 21, middle platform 23, toe 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
With reference to fig. 1 to fig. 3, the present embodiment provides a green fabricated supporting construction method, which includes the following steps:
trimming a slope surface of the side slope; removing loose stones, scum and dust on the surface by compressed air, and wetting the rock surface by a movable fog gun machine to keep the rock surface at a certain humidity;
drilling; holes distributed on the construction surface are used for arranging soil nails 11;
constructing soil nails; arranging soil nails in the holes and grouting for fixing; an opening for exposing the soil nail;
paving a green supporting surface layer 12; the green supporting surface layer is formed by combining an inner layer, a protective layer and a clamping layer, penetrates through the soil nail exposed sections and covers the trimmed slope surface;
installing a slope anchor 13 and a steel wire rope 14; on the slope surface, the end of the soil nail is wound by a circle through the reinforcing rib and is tensioned, then the steel base plate is arranged for fixation, and finally the steel base plate is fastened by the buckle to compress the steel wire rope so as to fixedly connect the green supporting surface layer to the outer surface of the side slope.
The green assembled supporting construction method in the scheme has the following beneficial effects:
(1) the used material is green, environment-friendly, light, pollution-free and beautiful;
(2) the work efficiency is high, the factory prefabrication and the assembly are simple, the per-capita capacity is improved by 2 times by combining the use of small-sized assembly tools, the limitation of weather and material supply environment is avoided, and the overall construction period can be saved by 2 times compared with the traditional construction period;
(3) the manufacturing cost is not higher than that of the traditional net spraying soil nailing wall, and the saving is about 10 percent.
In the embodiment, the soil nail construction adopts reinforcing steel bars with the diameter of 22mm, the spacing is 1.5m multiplied by 1.5m, the length is 6m, and the construction is carried out from top to bottom according to the foundation pit; the soil nail is arranged with an included angle of 20 degrees with the horizontal direction.
For two sections of side slopes with intermediate platforms, a ground anchor is vertically driven into the top 21 and the bottom 22 of the two sections of side slopes respectively, and the ground anchor is also connected with a soil nail through a steel wire rope; the slope foot is connected with the ground anchor by concrete to perform presser foot treatment. The integrity and the stability of the side slope can be improved by respectively arranging the sub ground anchors at the top and the bottom of the two sections of the side slope and connecting the sub ground anchors with the soil nails through the steel wire ropes. Optionally, the ground anchor adopts a twisted steel bar with the length of 1m and the diameter of 25mm, and the horizontal row spacing is 1.5m multiplied by 1.5m and is equidistant to the soil nails. The size of the concrete section is larger than 300mm multiplied by 80 mm.
In the embodiment, soil nails of the slope top 21, the middle platform 23 and the slope toe 22 are beaten by small tools; the surface layer is installed and fixed on the soil nail after the flanging treatment of the slope top, the middle platform and the slope toe. The width of the slope top flange is not less than 1m, and the width of the middle platform and the slope toe flange is not less than 0.8 m.
In this embodiment, drainage ditches 15 are provided at the top and bottom of the slope to avoid the influence of rain water and the like on the slope.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A green fabricated support construction method is characterized by comprising the following steps:
trimming a slope surface of the side slope; removing loose stones, scum and dust on the surface by compressed air, and wetting the rock surface by a movable fog gun machine to keep the rock surface at a certain humidity;
drilling; holes distributed on the construction surface are used for arranging soil nails;
constructing soil nails; arranging soil nails in the holes and grouting for fixing; an opening for exposing the soil nail;
paving a green supporting surface layer; the green supporting surface layer is formed by combining an inner layer, a protective layer and a clamping layer, penetrates through the soil nail exposed sections and covers the trimmed slope surface;
installing a slope anchor and a steel wire rope; on the slope surface, the end of the soil nail is wound by a circle through the reinforcing rib and is tensioned, then the steel base plate is arranged for fixation, and finally the steel base plate is fastened by the buckle to compress the steel wire rope so as to fixedly connect the green supporting surface layer to the outer surface of the side slope.
2. The green fabricated support construction method of claim 1, wherein:
the soil nail construction adopts reinforcing steel bars with the diameter of 22mm, the row spacing is 1.5m multiplied by 1.5m, the length is 6m, and the construction is carried out from top to bottom according to the foundation pit; the soil nail is arranged with an included angle of 20 degrees with the horizontal direction.
3. The green fabricated support construction method of claim 1, wherein:
for two sections of side slopes with intermediate platforms, vertically driving ground anchors into the tops and the bottoms of the two sections of side slopes respectively, and connecting the ground anchors with soil nails through steel wire ropes;
the slope foot is connected with the ground anchor by concrete to perform presser foot treatment.
4. The green fabricated support construction method of claim 3, wherein:
the ground anchor adopts a twisted steel bar with the length of 1m and the diameter of 25mm, the horizontal row spacing is 1.5m multiplied by 1.5m, and the ground anchor is equidistant to the soil nails.
5. The green fabricated support construction method of claim 3, wherein:
the size of the concrete section is larger than 300mm multiplied by 80 mm.
6. The green fabricated support construction method of claim 3, wherein:
soil nails at the top of the slope, the middle platform and the slope toe are beaten by small machines; the surface layer is installed and fixed on the soil nail after the flanging treatment of the slope top, the middle platform and the slope toe.
7. The green fabricated support construction method of claim 6, wherein:
the width of the slope top flange is not less than 1m, and the width of the middle platform and the slope toe flange is not less than 0.8 m.
8. The green fabricated support construction method of claim 3, wherein:
drainage ditches are arranged at the top and the foot of the slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010571153.7A CN111705817A (en) | 2020-06-22 | 2020-06-22 | Green assembled support construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010571153.7A CN111705817A (en) | 2020-06-22 | 2020-06-22 | Green assembled support construction method |
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| Publication Number | Publication Date |
|---|---|
| CN111705817A true CN111705817A (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010571153.7A Pending CN111705817A (en) | 2020-06-22 | 2020-06-22 | Green assembled support construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319378A (en) * | 2021-12-31 | 2022-04-12 | 北京中岩大地科技股份有限公司 | Construction method of flexible face-protecting soil nail wall |
| CN115419077A (en) * | 2022-08-18 | 2022-12-02 | 中建三局集团有限公司 | Recoverable green assembled foundation pit supporting system and construction process thereof |
| CN115492124A (en) * | 2022-09-27 | 2022-12-20 | 中铁建工集团有限公司 | Deep foundation pit slope support construction process |
-
2020
- 2020-06-22 CN CN202010571153.7A patent/CN111705817A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 刘学武等: "装配式面层在高填方边坡防护的应用", 《施工技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319378A (en) * | 2021-12-31 | 2022-04-12 | 北京中岩大地科技股份有限公司 | Construction method of flexible face-protecting soil nail wall |
| CN115419077A (en) * | 2022-08-18 | 2022-12-02 | 中建三局集团有限公司 | Recoverable green assembled foundation pit supporting system and construction process thereof |
| CN115492124A (en) * | 2022-09-27 | 2022-12-20 | 中铁建工集团有限公司 | Deep foundation pit slope support construction process |
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Application publication date: 20200925 |