CN110106891B - Anchor net cable-profile steel support coupling supporting structure - Google Patents
Anchor net cable-profile steel support coupling supporting structure Download PDFInfo
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- CN110106891B CN110106891B CN201910496862.0A CN201910496862A CN110106891B CN 110106891 B CN110106891 B CN 110106891B CN 201910496862 A CN201910496862 A CN 201910496862A CN 110106891 B CN110106891 B CN 110106891B
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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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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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
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Abstract
The invention belongs to the field of construction engineering construction, and particularly relates to an anchor net cable-profile steel bracket coupling supporting structure which comprises a first I-shaped steel, a second I-shaped steel, a guide sleeve, an anchor rod, a prestressed nut, a rod head, a rod tail, a swing rod, a spring and a guide hole; vertically inserting and striking the I-shaped steel I on the wall of the foundation pit; the second I-shaped steel is transversely inserted and beaten at the position, close to the bottom, of the first I-shaped steel; one side of the upper end of the first I-shaped steel, which is close to the foundation pit, is fixedly connected with a guide sleeve; one end of the second I-shaped steel, which is far away from the first I-shaped steel, is provided with a guide hole; an anchor rod is arranged in an anchor hole drilled in the extending direction of one side of the guide sleeve, which is far away from the foundation pit; according to the invention, the stable triangular supporting structure is formed by combining the vertical I-shaped steel I and the transverse II-shaped steel I, and clamping the anchor rod of the II-shaped steel after the I-shaped steel II is inserted into the guide hole along the direction of the guide sleeve, so that the stability of foundation pit wall supporting is ensured.
Description
Technical Field
The invention belongs to the field of construction of constructional engineering, and particularly relates to an anchor net cable-profile steel support coupling supporting structure.
Background
The foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit.
The steel sheet pile and the profile steel pile have advantages and disadvantages as the existing deep foundation pit supporting technology, the steel sheet pile has a water stopping function, the construction period is short, but the steel sheet pile cannot be driven into an isolated stone or pebble interlayer, the applicable stratum is limited, and the driving depth is limited; the section steel pile is easy to drive, can penetrate through a pebble interlayer, is large in driving depth, can be repeatedly used, is short in construction period, and is insufficient in supporting strength.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems in the background art, the invention provides an anchor net cable-steel support coupling supporting structure.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention provides an anchor net cable-profile steel bracket coupling supporting structure which comprises a first I-shaped steel, a second I-shaped steel, a guide sleeve, an anchor rod, a prestressed nut, a rod head, a rod tail, a swing rod, a spring and a guide hole; the I-shaped steel I is vertically inserted and beaten on the wall of the foundation pit; the second I-shaped steel is transversely inserted and beaten at the position, close to the bottom, of the first I-shaped steel; a guide sleeve is fixedly connected to one side, close to the foundation pit, of the upper end of the first I-shaped steel, and an included angle between the guide sleeve and the first I-shaped steel is forty-five degrees; one end of the second I-shaped steel, which is far away from the first I-shaped steel, is provided with a guide hole; an anchor rod is arranged in an anchor hole drilled in the extending direction of one side, far away from the foundation pit, of the guide sleeve, and a rod head is arranged at one end, close to the second I-shaped steel, of the anchor rod; the rod head is rotatably connected with a swing rod; a pair of springs is fixedly connected between the swing rod and the inner groove of the rod head, and the springs are used for rotating the swing rod after the rod head reaches a preset position; a rod tail is arranged at one end of the anchor rod close to the I-shaped steel, and a prestressed nut is connected to the rod tail in a threaded mode; through the mutual matching of the first I-shaped steel and the second I-shaped steel, the guide sleeve, the anchor rod, the prestressed nut, the rod head, the rod tail, the swing rod, the spring and the guide hole, a stable triangular supporting structure is formed, and the supporting stability of the foundation pit wall is ensured; when the foundation pit supporting structure works, a pile inserting machine is used for clamping a first I-shaped steel to vertically vibrate and insert the first I-shaped steel into a soil layer, then a foundation pit is excavated, after the foundation pit is excavated, a pile inserting machine is used for transversely vibrating and inserting a second I-shaped steel, after the second I-shaped steel is inserted and inserted in place, a drilling machine is used for drilling an anchor hole along the direction of a guide sleeve, then an anchor rod is inserted into the anchor hole, a rod head penetrates through a guide hole in the second I-shaped steel and then pulls the anchor rod, at the moment, a swing rod rotates under the action of a spring and clamps the second I-shaped steel, finally a prestress nut is used for locking a rod tail to apply prestress to the anchor rod, the first I-shaped steel and the second I-shaped steel are mutually matched to form a stable triangular supporting structure, the supporting stability.
Preferably, one end, far away from the first I-shaped steel, of the second I-shaped steel is provided with a group of guide holes, and the axes of the guide holes are parallel to the axis of the anchor rod; the guide plates are arranged adjacent to the guide holes at intervals, one side of each guide hole, which is far away from the I-shaped steel I, is provided with a wedge-shaped guide plate, and the guide plates are used for providing direction guide for the drill rod when drilling anchor holes; the plurality of guide holes are arranged, so that the drilling rod can be drilled into any one guide hole without influencing the subsequent construction work, the directional accuracy of the drilling rod can be reduced, the measurement work is reduced, and the construction period is further shortened; the drilling and digging direction of the drill rod can be corrected when the drill rod approaches the guide hole through the guide plate, the construction progress is accelerated, and the construction period is further shortened.
Preferably, the anchor rod is sleeved with a protective sleeve made of a corrugated pipe; high-strength concrete is poured into the protective sleeve at high pressure, an enlarged pile is formed at the rod head, the anchoring force of the anchor rod is further increased, and the supporting stability of the foundation pit wall is further increased; the high-strength concrete is poured into the protective sleeve at a high pressure, so that the friction force among the anchor rod, the protective sleeve and the soil layer can be increased, and the pulling resistance of the anchor rod is increased; when high-pressure concrete enters the rod head part through the protective sleeve, the soil layer nearby is extruded to form an enlarged pile bottom, the pulling strength of the anchor rod is further improved, and the stability of foundation pit wall support is further enhanced.
Preferably, a group of overflow holes are formed in the protective sleeve and used for overflowing part of concrete to increase the friction force of the anchor rod; a support rod is hinged in the overflow hole, and the friction force of the anchor rod is further increased after the support rod is spread; when the concrete that the high pressure was poured flows through the lag, solidification after partly concrete spills over from the overflow hole further increases the frictional force of lag and soil layer, and open vaulting pole under concrete promotes simultaneously can further increase the shear strength of the concrete that spills over from the overflow hole at the cooperation concrete, further strengthens foundation ditch wall support's stability.
Preferably, a preheating expansion rubber mat is sleeved on one side, close to the bottom of the second I-shaped steel, of the rod head, when the protective sleeve is subjected to high-pressure grouting, the concrete is solidified and heated, the preheating expansion rubber mat absorbs heat to expand, the tension of the anchor rod is further increased, and the supporting stability of the foundation pit wall is guaranteed; when the concrete forms an enlarged pile near the rod head, the concrete is solidified to emit heat, the preheated expansion rubber mat absorbs the heat released by the concrete and then expands, the anchor rod is further tensioned, the pretension force of the anchor rod is further improved, and the stability of foundation pit wall support is further enhanced.
Preferably, a group of heat conduction holes are formed in the outer edge of the preheating expansion rubber mat, and the bottoms of the heat conduction holes are spherical; the heat conduction holes are used for accelerating the thermal expansion of the preheating expansion rubber mat, and concrete is poured into the heat conduction holes to further increase the supporting force of the preheating expansion rubber mat; inside flowing into the preheating expansion cushion with the concrete through the heat conduction hole, further accelerating the thermal expansion speed of preheating the expansion cushion, the concrete after the solidification simultaneously can provide fine holding power for preheating the expansion cushion, further increases the compressive strength of preheating the expansion cushion to further strengthen the stability that the foundation ditch wall was strutted.
The invention has the following beneficial effects:
1. according to the anchor net cable-profile steel support coupling supporting structure, the I-shaped steel I inserted and punched vertically and the I-shaped steel II inserted and punched transversely in a vibrating mode are matched with the anchor rod inserted into the guide hole along the direction of the guide sleeve and then used for clamping the I-shaped steel II, and the anchor rod, the I-shaped steel I and the I-shaped steel II are matched with each other to form a stable triangular supporting structure, so that the supporting stability of a foundation pit wall is guaranteed, and the safety of constructors and equipment in a foundation pit is guaranteed.
2. According to the anchor net cable-profile steel support coupling supporting structure, when concrete poured under high pressure flows through the protective sleeve, a part of concrete overflows from the overflow hole and then solidifies, so that the friction force between the protective sleeve and a soil layer is further increased, meanwhile, the opened support rods are pushed by the concrete, the shear strength of the concrete overflowing from the overflow hole can be further increased by matching with the concrete, and the stability of foundation pit wall supporting is further enhanced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is an elevational side view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
in the figure: the device comprises a first I-shaped steel 1, a second I-shaped steel 2, a guide sleeve 3, an anchor rod 4, a prestressed nut 5, a rod head 6, a rod tail 7, a swing rod 8, a spring 9, a guide hole 10, a guide plate 11, a protective sleeve 12, an overflow hole 14, a support rod 15, a preheating expansion rubber mat 16 and a heat conduction hole 17.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the anchor net cable-section steel bracket coupling supporting structure comprises a first i-shaped steel 1, a second i-shaped steel 2, a guide sleeve 3, an anchor rod 4, a prestressed nut 5, a rod head 6, a rod tail 7, a swing rod 8, a spring 9 and a guide hole 10; the I-shaped steel 1 is vertically inserted and beaten on the wall of the foundation pit; the second I-shaped steel 2 is transversely inserted and beaten at the position, close to the bottom, of the first I-shaped steel 1; a guide sleeve 3 is fixedly connected to one side, close to the foundation pit, of the upper end of the first I-shaped steel 1, and an included angle between the guide sleeve 3 and the first I-shaped steel 1 is forty-five degrees; one end of the second I-shaped steel 2, which is far away from the first I-shaped steel 1, is provided with a guide hole 10; an anchor rod 4 is arranged in an anchor hole drilled in the extending direction of one side, far away from the foundation pit, of the guide sleeve 3, and a rod head 6 is arranged at one end, close to the second I-shaped steel 2, of the anchor rod 4; the rod head 6 is rotatably connected with a swing rod 8; a pair of springs 9 is fixedly connected between the swing rod 8 and the inner groove of the rod head 6, and the springs 9 are used for rotating the swing rod 8 after the rod head 6 reaches a preset position; a rod tail 7 is arranged at one end of the anchor rod 4 close to the first I-shaped steel 1, and a prestressed nut 5 is connected to the rod tail 7 in a threaded mode; through the mutual matching of the first I-shaped steel 1, the second I-shaped steel 2, the guide sleeve 3, the anchor rod 4, the prestressed nut 5, the rod head 6, the rod tail 7, the swing rod 8, the spring 9 and the guide hole 10, a stable triangular supporting structure is formed, and the supporting stability of the foundation pit wall is ensured; when the foundation pit supporting structure works, a pile inserting machine is used for clamping the first I-shaped steel 1 to vertically vibrate and insert into a soil layer, then a foundation pit is excavated, after the foundation pit is excavated, the pile inserting machine is used for transversely vibrating and inserting the second I-shaped steel 2, after the second I-shaped steel 2 is inserted in place, a drilling machine is used for drilling an anchor hole along the direction of the guide sleeve 3, then the anchor rod 4 is inserted into the anchor hole, the rod head 6 penetrates through the guide hole 10 in the second I-shaped steel 2 and then pulls the anchor rod 4, at the moment, the swing rod 8 rotates under the action of the spring 9 and clamps the second I-shaped steel 2, finally the rod tail 7 is locked by the prestress nut 5 to apply prestress to the anchor rod 4, the first I-shaped steel 1 and the second I-shaped steel 2 are matched with each other to form a stable triangular supporting structure, the supporting stability of the foundation pit wall is ensured.
As an embodiment of the invention, one end of the second i-shaped steel 2, which is far away from the first i-shaped steel 1, is provided with a group of guide holes 10, and the axes of the guide holes 10 are parallel to the axis of the anchor rod 4; the adjacent guide holes 10 are arranged at intervals, one side, away from the first I-shaped steel 1, of each guide hole 10 is provided with a wedge-shaped guide plate 11, and the guide plates 11 are used for providing direction guide for a drill rod when drilling anchor holes; the plurality of guide holes 10 are arranged, so that the drilling rod can be drilled into any one guide hole 10 without influencing the subsequent construction work, the directional accuracy of the drilling rod can be reduced, the measurement work is reduced, and the construction period is further shortened; the guide plate 11 can correct the drilling direction of the drill rod when the drill rod approaches the guide hole 10, so that the construction progress is accelerated, and the construction period is further shortened.
As an embodiment of the present invention, a protecting sleeve 12 made of a corrugated tube is sleeved on the anchor rod 4; high-strength concrete is poured into the protective sleeve 12 at high pressure to form an enlarged pile at the rod head 6, so that the anchoring force of the anchor rod 4 is further increased, and the supporting stability of the foundation pit wall is further increased; the high-strength concrete is poured into the protective sleeve 12 at high pressure, so that the friction force between the anchor rod 4 and the protective sleeve 12 and the soil layer can be increased, and the pulling resistance of the anchor rod 4 is increased; when high-pressure concrete enters the rod head 6 through the protective sleeve 12, the soil layer nearby is extruded to form an enlarged pile bottom, the pulling strength of the anchor rod 4 is further improved, and the stability of foundation pit wall support is further enhanced.
As an embodiment of the invention, a group of overflow holes 14 are formed in the protective sleeve 12, and the overflow holes 14 are used for overflowing part of concrete to increase the friction force of the anchor rod 4; a support rod 15 is hinged in the overflow hole 14, and the friction force of the anchor rod 4 is further increased after the support rod 15 is spread; when the high-pressure poured concrete flows through the protective sleeve 12, a part of concrete overflows from the overflow hole 14 and then is solidified, so that the friction force between the protective sleeve 12 and a soil layer is further increased, meanwhile, the expanded support rod 15 is pushed by the concrete, the shear strength of the concrete overflowing from the overflow hole 14 can be further increased by matching with the concrete, and the stability of foundation pit wall support is further enhanced.
As an embodiment of the invention, a preheating expansion rubber mat 16 is sleeved on one side of the rod head 6 close to the bottom of the second h-shaped steel 2, when the protective sleeve 12 is used for high-pressure grouting, concrete is solidified and heated, and the preheating expansion rubber mat 16 absorbs heat to expand, so that the tension of the anchor rod 4 is further increased, and the support stability of the foundation pit wall is ensured; when the concrete forms an enlarged pile near the rod head 6, the concrete is solidified to emit heat, the preheating expansion rubber mat 16 absorbs the heat released by the concrete and then expands, the anchor rod 4 is further tensioned, the pretensioning force of the anchor rod 4 is further improved, and the stability of foundation pit wall support is further enhanced.
As an embodiment of the present invention, a set of heat conduction holes 17 is formed at the outer edge of the preheating expansion rubber mat 16, and the bottoms of the heat conduction holes 17 are spherical; the heat conduction holes 17 are used for accelerating the thermal expansion of the preheating expansion rubber mat 16, and meanwhile, the heat conduction holes 17 are filled with concrete to further increase the supporting force of the preheating expansion rubber mat 16; the concrete flows into the pre-heat expansion rubber mat 16 through the heat conduction holes 17, the heating expansion speed of the pre-heat expansion rubber mat 16 is further increased, meanwhile, the solidified concrete can provide good supporting force for the pre-heat expansion rubber mat 16, the compressive strength of the pre-heat expansion rubber mat 16 is further increased, and therefore the stability of foundation pit wall supporting is further enhanced.
When the foundation pit supporting structure works, a pile inserting machine is used for clamping a first I-shaped steel 1 to vertically vibrate and insert into a soil layer, then a foundation pit is excavated, after the foundation pit is excavated, a pile inserting machine is used for transversely vibrating and inserting a second I-shaped steel 2, after the second I-shaped steel 2 is inserted in place, a drilling machine is used for drilling an anchor hole along the direction of a guide sleeve 3, then an anchor rod 4 is inserted into the anchor hole, a rod head 6 penetrates through a guide hole 10 in the second I-shaped steel 2 and then pulls the anchor rod 4, at the moment, a swing rod 8 rotates under the action of a spring 9 and clamps the second I-shaped steel 2, finally a rod tail 7 is locked by a prestress nut 5 to apply prestress to the anchor rod 4, the first I-shaped steel 1 and the second I-shaped steel 2 are matched with each other to form a stable triangular supporting structure, the supporting stability of the foundation pit wall is ensured; the plurality of guide holes 10 are arranged, so that the drilling rod can be drilled into any one guide hole 10 without influencing the subsequent construction work, the directional accuracy of the drilling rod can be reduced, the measurement work is reduced, and the construction period is further shortened; the guide plate 11 can correct the drilling direction of the drill rod when the drill rod approaches the guide hole 10, so that the construction progress is accelerated, and the construction period is further shortened; the plurality of guide holes 10 are arranged, so that the drilling rod can be drilled into any one guide hole 10 without influencing the subsequent construction work, the directional accuracy of the drilling rod can be reduced, the measurement work is reduced, and the construction period is further shortened; the guide plate 11 can correct the drilling direction of the drill rod when the drill rod approaches the guide hole 10, so that the construction progress is accelerated, and the construction period is further shortened; the high-strength concrete is poured into the protective sleeve 12 at high pressure, so that the friction force between the anchor rod 4 and the protective sleeve 12 and the soil layer can be increased, and the pulling resistance of the anchor rod 4 is increased; when high-pressure concrete enters the position of the rod head 6 through the protective sleeve 12, a nearby soil layer is extruded to form an enlarged pile bottom, the pulling strength of the anchor rod 4 is further increased, and the stability of foundation pit wall support is further enhanced; when the high-pressure poured concrete flows through the protective sleeve 12, a part of concrete overflows from the overflow hole 14 and then is solidified, so that the friction force between the protective sleeve 12 and the soil layer is further increased, meanwhile, the expanded stay bar 15 is pushed by the concrete, the shear strength of the concrete overflowing from the overflow hole 14 can be further increased by matching with the concrete, and the stability of foundation pit wall support is further enhanced; when the concrete forms an enlarged pile near the rod head 6, the concrete is solidified to emit heat, the preheated expansion rubber cushion 16 absorbs the heat released by the concrete and then expands, the anchor rod 4 is further tensioned, the pretensioning force of the anchor rod 4 is further improved, and the stability of foundation pit wall support is further enhanced; the concrete flows into the pre-heat expansion rubber mat 16 through the heat conduction holes 17, the heating expansion speed of the pre-heat expansion rubber mat 16 is further increased, meanwhile, the solidified concrete can provide good supporting force for the pre-heat expansion rubber mat 16, the compressive strength of the pre-heat expansion rubber mat 16 is further increased, and therefore the stability of foundation pit wall supporting is further enhanced.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an anchor net cable-shaped steel support coupling supporting construction which characterized in that: the device comprises a first I-shaped steel (1), a second I-shaped steel (2), a guide sleeve (3), an anchor rod (4), a prestressed nut (5), a rod head (6), a rod tail (7), a swing rod (8), a spring (9) and a guide hole (10); the I-shaped steel I (1) is vertically inserted and beaten on the wall of the foundation pit; the second I-shaped steel (2) is transversely inserted and beaten at the position, close to the bottom, of the first I-shaped steel (1); a guide sleeve (3) is fixedly connected to one side, close to the foundation pit, of the upper end of the first I-shaped steel (1), and an included angle between the guide sleeve (3) and the first I-shaped steel (1) is forty-five degrees; a guide hole (10) is formed in one end, away from the first I-shaped steel (1), of the second I-shaped steel (2); an anchor rod (4) is arranged in an anchor hole drilled in the extending direction of one side, far away from the foundation pit, of the guide sleeve (3), and a rod head (6) is arranged at one end, close to the second I-shaped steel (2), of the anchor rod (4); the rod head (6) is rotatably connected with a swing rod (8); a pair of springs (9) is fixedly connected between the swing rod (8) and the inner grooves of the rod head (6), and the springs (9) are used for rotating the swing rod (8) after the rod head (6) reaches a preset position; a rod tail (7) is arranged at one end of the anchor rod (4) close to the first I-shaped steel (1), and a prestressed nut (5) is connected to the rod tail (7) in a threaded manner; through the mutual matching among the first I-shaped steel (1), the second I-shaped steel (2), the guide sleeve (3), the anchor rod (4), the prestressed nut (5), the rod head (6), the rod tail (7), the swing rod (8), the spring (9) and the guide hole (10), a stable triangular supporting structure is formed, and the supporting stability of the foundation pit wall is ensured.
2. The anchor net cable-section steel bracket coupling supporting structure of claim 1, wherein: one end, far away from the first I-shaped steel (1), of the second I-shaped steel (2) is provided with a group of guide holes (10), and the axes of the guide holes (10) are parallel to the axis of the anchor rod (4); adjacent guide holes (10) are arranged at intervals, one side, away from the I-shaped steel (1), of each guide hole (10) is provided with a wedge-shaped guide plate (11), and the guide plates (11) are used for providing direction guide for a drill rod during drilling anchor holes.
3. The anchor net cable-section steel bracket coupling supporting structure of claim 1, wherein: a protective sleeve (12) made of corrugated pipes is sleeved on the anchor rod (4); high-strength concrete is poured into the protective sleeve (12) at high pressure, an enlarged pile is formed at the rod head (6), the anchoring force of the anchor rod (4) is further increased, and the supporting stability of the foundation pit wall is further increased.
4. An anchor net cable-section steel bracket coupling supporting structure according to claim 3, characterized in that: a group of overflow holes (14) are formed in the protective sleeve (12), and the overflow holes (14) are used for overflowing part of concrete to increase the friction force of the anchor rod (4); a support rod (15) is hinged in the overflow hole (14), and the friction force of the anchor rod (4) is further increased after the support rod (15) is spread.
5. The anchor net cable-section steel bracket coupling supporting structure of claim 1, wherein: one side of the rod head (6) close to the bottom of the second I-shaped steel (2) is sleeved with a preheating expansion rubber mat (16), when the protective sleeve (12) is used for high-pressure grouting, concrete is solidified and generates heat, the preheating expansion rubber mat (16) absorbs heat to expand, the tension force of the anchor rod (4) is further increased, and the supporting stability of the foundation pit wall is guaranteed.
6. The anchor net cable-section steel bracket coupling supporting structure of claim 5, wherein: the outer edge of the preheating expansion rubber mat (16) is provided with a group of heat conduction holes (17), and the bottoms of the heat conduction holes (17) are spherical; the heat conduction holes (17) are used for accelerating the heating expansion of the preheating expansion rubber mat (16), and meanwhile, concrete is poured into the heat conduction holes (17) to further increase the supporting force of the preheating expansion rubber mat (16).
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| WO2014064404A1 (en) * | 2012-10-23 | 2014-05-01 | Michael Mulvihill | A retention device |
| CN203559423U (en) * | 2013-10-23 | 2014-04-23 | 中国建筑股份有限公司 | Novel inclined pile and vertical anchor supporting structure next to existing building foundation pit |
| CN204626448U (en) * | 2015-05-08 | 2015-09-09 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of steel reinforced concrete counterfort wall for high roadbed district |
| CN105862870A (en) * | 2016-03-31 | 2016-08-17 | 南宁市纪元重载检测科技有限责任公司 | Recyclable anchor cable and anchor rod vertical supporting frame for foundation pit support |
| CN205669207U (en) * | 2016-06-02 | 2016-11-02 | 侯宏伟 | A kind of building safety supporting construction |
| CN108035361A (en) * | 2017-12-28 | 2018-05-15 | 上海智平基础工程有限公司 | A kind of advanced support supporting construction and its construction method |
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| CN110106891A (en) | 2019-08-09 |
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