CN210712857U - Easy dismouting formula underground structure - Google Patents
Easy dismouting formula underground structure Download PDFInfo
- Publication number
- CN210712857U CN210712857U CN201920989951.4U CN201920989951U CN210712857U CN 210712857 U CN210712857 U CN 210712857U CN 201920989951 U CN201920989951 U CN 201920989951U CN 210712857 U CN210712857 U CN 210712857U
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- support frame
- foundation ditch
- support
- supporting
- sleeve
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- 230000008093 supporting effect Effects 0.000 claims abstract description 111
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 10
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 16
- 230000007246 mechanism Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 241000968069 Asterolecaniidae Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003068 static effect Effects 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
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an easily install and remove formula underground structure relates to the technical field of excavation supporting engineering, it is including setting up a plurality of fender piles in foundation ditch side slope department, the up end is provided with a plurality of support frames at the bottom of the foundation ditch hole, the support frame up end still be provided with the telescoping device and with the backup pad of a fender pile butt, insert in the soil layer at the bottom of the foundation ditch hole lower tip of support frame, the tip is provided with the supporting seat of arranging foundation ditch hole up end in under the support frame, one side that a fender pile deviates from the foundation ditch bank protection has been pour in a fender pile and foundation ditch hole bottom contact part an organic whole to the pull ring, be provided with taut subassembly between pull ring and the support frame upper end. The utility model discloses a take-up assembly takes up support frame upper end and a fender pile lower extreme, has improved the stability of being connected between support frame and the fender pile for difficult upset behind the support frame pressurized.
Description
Technical Field
The utility model belongs to the technical field of the technique of excavation supporting engineering and specifically relates to an easily install and remove formula excavation supporting construction is related to.
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 foundation pit supporting structure system generally comprises two parts, namely a soil retaining structure and a precipitation and water stopping system. The pile and wall type supporting structure usually adopts steel sheet piles, reinforced concrete sheet piles, column type cast-in-place piles, underground continuous walls and the like, can be designed to be cantilever type, inner support type or anchor pull type according to soil conditions and foundation pit scale, and the gravity type supporting structure mostly adopts cement soil mixing pile retaining walls, soil nailing walls and the like. When the inner supporting structure needs to be dismantled after the foundation pit construction is completed, the inner supporting structure can only be cut or blasted, so that the waste of raw materials of the inner supporting structure is caused, and the construction cost is also increased.
Aiming at the problems, the Chinese patent with the patent publication number of CN208121779U provides an easily-assembled and easily-disassembled foundation pit supporting mechanism which comprises a plurality of supporting mechanisms, wherein the supporting mechanisms are connected into a whole through connecting devices and are uniformly distributed; the supporting mechanism comprises a supporting frame, a telescopic device which is detachably arranged on the supporting frame, and a supporting plate arranged at one end of the telescopic device; the telescopic device is vertical to the support frame, the support plate is parallel to the support frame, and the bottom end of the support frame is provided with a support seat; all supporting mechanisms's support frame is parallel, and the backup pad is even outwards set up. The utility model discloses a set up most subassembly into dismantled and assembled structure, easy dismounting can not cause the damage to whole excavation supporting mechanism, the subsequent reuse of being convenient for.
The above prior art solutions have the following drawbacks: a plurality of supporting mechanism form supporting construction's interior support and strut the fender pile of foundation ditch side slope department, and the support frame then supports the support frame through the ground contact at the bottom of base and supporting shoe and the foundation ditch hole, indulge to connect into whole through connecting device between two adjacent support frames, but holistic stability is still relatively poor, be difficult to bear the load that comes from fender pile pressurized upset completely, in case the distance between support frame upper end and the fender pile changes, be difficult to make the support frame effectively support a fender pile again through adjusting telescoping device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an easily install and remove formula underground structure that supports can stabilize to a fender pile.
The utility model aims at realizing through the following technical scheme:
the utility model provides an easily install and remove formula underground structure, is provided with a plurality of support frames including setting up a plurality of fender piles in foundation ditch slope department at the end of the pit up end, the support frame up end still be provided with the telescoping device and with the backup pad of fender pile butt, its characterized in that: the lower tip of support frame inserts in the soil layer at the bottom of the foundation ditch hole, the tip is provided with the supporting seat of arranging foundation ditch hole up end in under the support frame, prop up one side that the fender pile deviates from the foundation ditch bank protection in prop up fender pile and foundation ditch hole bottom contact portion an organic whole and pour the pull ring, the pull ring with be provided with taut subassembly between the support frame upper end.
By adopting the technical scheme, after the supporting piles are poured, the plurality of supporting frames are inserted into the soil layer at the bottom of the foundation pit and fixed through the supporting seats, the supporting plates are arranged on the corresponding side walls of the supporting piles, and the supporting plates are tightly propped against the side walls of the supporting piles by the telescopic devices arranged on the supporting frames, so that the supporting piles are supported by the supporting frames, and the supporting effect of the supporting structure on the foundation pit is ensured as much as possible; when the support frame supports the support piles, the support piles bear the load exerted on the support piles by the self weight of the foundation pit slope protection, so that the support piles tend to turn over in the foundation pit, and then the load is transmitted to the support frame, so that the upper end part of the support frame also has the tendency of overturning towards the center of the foundation pit, the tensioning component tensions the upper end part of the support frame at the lower part of the support pile, so that the stable connection between the support frame and the support pile is enhanced, part of the load from the foundation pit slope protection is transferred to the lower part of the support pile, thereby the supporting pile is stressed more evenly, the supporting frame is not easy to turn over, the supporting frame is ensured to effectively support the supporting pile as much as possible, and then improved effective, the stable support of supporting construction to the foundation ditch, support the inner support part of construction and all adopt detachable connection simultaneously, be convenient for install and remove and used repeatedly, reduced supporting construction's construction cost.
Further setting the following steps: the tensioning assembly comprises a turnbuckle with one end hooked on the pull ring, a pull rope is fixedly connected to one end, far away from the pull ring, of the turnbuckle, and one end, far away from the turnbuckle, of the pull rope is connected with the upper end of the support frame.
Through adopting above-mentioned technical scheme, the taut length of turn buckle self is adjustable, and still has the auto-lock nature, with turn buckle screwed connection between cable, the adjustment turn buckle screw can be with the upper end of support frame and the taut connection in fender pile lower part, has guaranteed the stability of support frame and fender pile, also makes supporting construction be applicable to the strut to not equidimension foundation ditch simultaneously.
Further setting the following steps: the peripheral wall of the upper end part of the support frame is sleeved with a sleeve attached to the peripheral wall of the support frame, and one end, far away from the turnbuckle, of the inhaul cable is hinged to the peripheral wall of the sleeve.
Through adopting above-mentioned technical scheme, the sleeve has increased the area of contact of cable and support frame, avoids the cable to cause the damage to the support frame when too big to the pulling force of support frame as far as, influences the reuse of support frame.
Further setting the following steps: and a plurality of abutting bolts penetrate through the threads of the peripheral wall of the sleeve.
Through adopting above-mentioned technical scheme, according to the suitable contained angle of different foundation ditch size design cable and support frame, and then with the sleeve setting on suitable position on the support frame, the rethread is rotatory to support tight bolt and make to support tight bolt one end and support frame lateral wall and support tightly to fix the sleeve on the support frame, realized the stable connection between support frame and the fender pile.
Further setting the following steps: the supporting seat upper end surface runs through and is provided with a U-shaped groove which is matched with the supporting frame in an inserting mode.
Through adopting above-mentioned technical scheme, make U type groove orientation on the supporting seat support the stake adjacent with it during the erection bracing seat, the supporting seat carries out radial support to the support frame through the plug-in connection of U type groove and support frame again, has further improved the stability of support frame in the foundation ditch hole end, has guaranteed the stable support of support frame to a fender stake as far as possible.
Further setting the following steps: one side of the lower end face of the supporting seat, which is far away from the U-shaped groove, is fixedly connected with a heel block.
Through adopting above-mentioned technical scheme, the setting of heel piece makes the supporting seat fix at foundation ditch pit terminal surface on the bottom as far as possible steadily to the support performance of supporting seat to the support frame has been improved.
Further setting the following steps: the sleeve is characterized in that a main pull rod and an auxiliary pull rod are fixedly connected to the side wall of the sleeve respectively, a connecting line of one ends, adjacent to the main pull rod and the auxiliary pull rod, of the main pull rod is intersected with the axis of the sleeve, a spiral groove is formed in one end, far away from the sleeve, of the auxiliary pull rod, one end, far away from the sleeve, of the main pull rod is rotatably connected with an inner spiral tube matched with the spiral groove in a threaded mode, and a clamping block convenient for rotating the inner spiral tube is fixedly connected to the peripheral wall of the inner.
By adopting the technical scheme, a plurality of support frames are arranged at the bottom of the foundation pit to support the support pile, and the adjacent main pull rod and the adjacent auxiliary pull rod on the two adjacent support frames are connected through the spiral groove on the main pull rod and the internal screw thread on the auxiliary pull rod in a threaded manner, so that the plurality of support frames are connected into a whole, and the stability of the support frames at the bottom of the foundation pit is further improved; the clamping block is arranged to facilitate the rotation of the inner screw cylinder, so that the connection between the main pull rod and the auxiliary pull rod is more convenient.
Further setting the following steps: the support frame comprises a steel pipe, and reinforced concrete is poured in the steel pipe.
By adopting the technical scheme, the support frame is made of steel pipe cast-in reinforced concrete, the radial bending resistance of the support frame is enhanced, and the support frame is more stable when supporting the support pile.
To sum up, the utility model discloses a beneficial technological effect does:
1. when the support frame supports the support pile through the expansion device and the support plate, the tensioning assembly tensions the upper end part of the support frame and the lower part of the support pile, so that the situation that the upper end part of the support frame is overturned after bearing a large load and loses effective support for the support pile is avoided as much as possible, and effective and stable support of a foundation pit by a support structure is improved;
2. the contact area between the stay cable and the support frame is increased by arranging the sleeve, so that the support frame is prevented from being damaged and the reuse of the support frame is prevented from being influenced when the stay cable pulls the support frame too much;
3. the supporting seat is provided with the U-shaped groove and the heel block, so that the supporting seat can play a role in stably supporting the supporting frame, and the stability of the supporting frame in the bottom of the foundation pit is improved.
Drawings
Fig. 1 is a sectional view of the overall structure of the present invention;
fig. 2 is a schematic view of the overall structure of the sleeve, the main pull rod, the auxiliary pull rod, the spiral groove and the fixture block of the present invention.
Reference numerals: 1. supporting piles; 2. a support frame; 3. a telescoping device; 4. a support plate; 5. a supporting seat; 6. a turnbuckle; 7. a sleeve; 8. tightly abutting against the bolt; 9. a U-shaped groove; 10. a heel piece; 11. a main pull rod; 12. an auxiliary pull rod; 13. a helical groove; 14. a clamping block; 15. a pull ring; 16. a cable; 17. a crown beam; 18. an inner screw cylinder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses an easily install and remove formula underground structure, pour a plurality of fender piles 1 in foundation ditch side slope border department including drilling, a plurality of fender piles 1 arrange along foundation ditch side slope edge in proper order, a plurality of fender piles 1 upper end an organic whole have been pour along its crown beam 17 of direction of arranging, the vertical a plurality of support frames 2 that are provided with of foundation ditch end of a pit upper end, support frame 2 is pour reinforced concrete by the steel pipe and makes, the lower tip of support frame 2 inserts in the soil layer of foundation ditch end of a pit, a plurality of support frames 2 are equidistant along the direction of arranging of a plurality of fender piles 1 and arrange, support frame 2 upper end still level be provided with telescoping device 3 and vertical setting and with the backup pad 4 of fender pile 1 lateral wall butt, the concrete structure of telescoping device 3 sees the description of chinese patent No. CN208121779U [ 0031 ] section.
After the supporting pile 1 is poured, a plurality of supporting frames 2 are inserted into a soil layer at the bottom of a foundation pit, then the supporting plates 4 are arranged on the side walls of the corresponding supporting piles 1, the supporting plates 4 are tightly propped against the side walls of the supporting piles 1 by the aid of the telescopic devices 3 arranged on the supporting frames 2, so that the supporting piles 1 are effectively supported by the supporting frames 2, contact areas of the supporting frames 2 when the supporting piles 1 are supported by the supporting frames 4 are increased, the connection stability between the supporting frames 2 and the supporting piles 1 is improved, the supporting frames 2 made of reinforced concrete poured in steel pipes have strong radial bending resistance, effective support of the supporting frames 2 on the supporting piles 1 is guaranteed as much as possible, and supporting effect of a supporting structure on the foundation pit is achieved; meanwhile, the inner support parts of the supporting structure are detachably connected, so that the supporting structure is convenient to assemble, disassemble and reuse, and the construction cost of the supporting structure is reduced.
A plate-shaped supporting seat 5 arranged on the upper end face of the pit bottom of the foundation pit is arranged at the lower end part of the supporting frame 2, a U-shaped groove 9 matched with the supporting frame 2 in an inserted manner is formed in the upper end face of the supporting seat 5 in a penetrating manner, a heel block 10 is fixedly connected to one side, far away from the U-shaped groove 9, of the lower end face of the supporting seat 5, the cross section of the heel block 10 is triangular, and one side of a bevel edge is close to a; one side that props up pile 1 and deviates from the foundation ditch bank protection has pour steel pull ring 15 in a fender pile 1 and foundation ditch hole bottom contact portion an organic whole, be provided with taut subassembly between pull ring 15 and the 2 upper end of support frame, taut subassembly includes that one end hooks to hang basket screw 6 on pull ring 15, basket screw 6 is common CO type high strength turn buckle among the prior art, the one end rigid coupling that pull ring 15 was kept away from to basket screw 6 has wire rope around the cable 16 that the strand formed, the perisporium cover of 2 upper end of support frame is equipped with sleeve 7 with the laminating of 2 perisporium of support frame, the articulated connection of the one end at sleeve 7 perisporium that basket screw 6 was kept away from to cable 16, sleeve 7 perisporium is still threaded to wear to be equipped with a plurality.
After the support frame 2 is installed, the U-shaped groove 9 on the support base 5 faces the adjacent support pile 1, the support base 5 radially supports the support frame 2 through the inserting connection of the U-shaped groove 9 and the support frame 2, and the heel block 10 enables the support base 5 to be stably fixed on the upper end face of the pit bottom of the foundation pit as far as possible, so that the support performance of the support base 5 on the support frame 2 is improved; when support frame 2 supports fender pile 1, fender pile 1 bears the load that foundation ditch bank protection dead weight was exerted on fender pile 1, make fender pile 1 have the trend of upset in the foundation ditch, and then this load transmits and makes 2 upper ends of support frame have the trend of overturning towards the foundation ditch center on support frame 2, adjustment basket screw 6 can be connected the upper end of support frame 2 with the tensioning of fender pile 1 lower part, support frame 2 and fender pile 1's stability has been guaranteed, the firm connection between support frame 2 and fender pile 1 has been strengthened, make the load that comes from the foundation ditch bank protection have a part to transmit the lower part of fender pile 1, thereby fender pile 1 atress is more even, support frame 2 also is difficult for taking place the upset, it can effectively support fender pile 1 to have guaranteed to support frame 2 as far as possible, and then improved the effective of supporting construction to the foundation ditch, stable supporting.
Calculating a proper included angle between the stay cable 16 and the support frame 2 according to different sizes of foundation pits, further arranging the sleeve 7 on a proper position on the support frame 2, and then rotating the fastening bolt 8 to fasten one end of the fastening bolt 8 to the outer side wall of the support frame 2, so that the sleeve 7 is fixed on the support frame 2, and the sleeve 7 is prevented from sliding on the support frame 2 when the stay cable 16 tensions the support pile 1 and the support frame 2; the arrangement of the sleeve 7 increases the contact area of the stay cable 16 and the support frame 2, and avoids the situation that when the pull of the stay cable 16 on the support frame 2 is too large, the stay cable 16 damages the local part of the support frame 2 and affects the reuse of the support frame 2.
Referring to fig. 2, the rigid coupling has main pull rod 11 and vice pull rod 12 respectively on the sleeve 7 lateral wall, the line of the adjacent one end of main pull rod 11 and vice pull rod 12 intersects with the axis of sleeve 7, the mode of accessible welding reinforcing bar in addition is fixed two support frames 2 between two adjacent bracing pieces that are located the foundation ditch corner, the one end that sleeve 7 was kept away from to vice pull rod 12 is provided with helicla flute 13, the one end rotation that sleeve 7 was kept away from to main pull rod 11 is connected with the interior barrel 18 with helicla flute 13 screw-thread adaptation, interior barrel 18 rigid coupling has the fixture block 14 of the interior barrel 18 of being convenient for to rotate, fixture block 14 cross section is regular hexagon.
Arranging a plurality of support frames 2 at the bottom of a foundation pit to support a support pile 1, connecting a main pull rod 11 and an auxiliary pull rod 12 which are adjacent to each other on two adjacent support frames 2 through a spiral groove 13 on the main pull rod 11 and an inner spiral tube thread on the auxiliary pull rod 12, so that the support frames 2 are connected into a whole, and after the two support frames 2 at the static corners are also fixed, the support frames 2 form a closed square-shaped whole, so that the stability of the support frames 2 at the bottom of the foundation pit is further improved; the provision of the latch 14 facilitates the rotation of the inner barrel 18, which facilitates the connection of the main link 11 and the sub-link 12.
The implementation principle and the beneficial effects of the embodiment are as follows:
after the supporting piles 1 are poured, a plurality of supporting frames 2 are inserted into soil layers at the bottom of a foundation pit and fixed through supporting seats 5, supporting plates 4 are arranged on the side walls of the corresponding supporting piles 1, and the supporting plates 4 are abutted against the side walls of the supporting piles 1 by telescopic devices 3 arranged on the supporting frames 2, so that the supporting frames 2 support the supporting piles 1, and the effective supporting effect of a supporting structure on the foundation pit is ensured as much as possible; when support frame 2 supports fender pile 1, through taut subassembly with the taut lower part at fender pile 1 of support frame 2 upper end, strengthened the firm connection between support frame 2 and the fender pile 1, make the load that comes from the foundation ditch bank protection have a part to transmit the lower part of fender pile 1, thereby fender pile 1 atress is more even, support frame 2 also is difficult for taking place the upset, guaranteed support frame 2 as far as to effectively support fender pile 1, and then improved the effective of supporting construction to the foundation ditch, stable support, the interior support part of supporting construction all adopts detachable connection simultaneously, be convenient for install and remove and used repeatedly, the construction cost of supporting construction has been reduced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides an easily install and remove formula underground structure, is including setting up a plurality of fender pile (1) in foundation ditch slope department, and foundation ditch pit up end is provided with a plurality of support frames (2), support frame (2) up end still be provided with telescoping device (3) and with backup pad (4) of fender pile (1) butt, its characterized in that: the utility model discloses a foundation ditch hole, including support frame (2), lower tip is provided with support seat (5) of arranging foundation ditch hole up end in support frame (2), prop up fender pile (1) deviate from one side of foundation ditch bank protection in prop up fender pile (1) and foundation ditch hole bottom contact portion an organic whole and pour pull ring (15), pull ring (15) with be provided with taut subassembly between support frame (2) the upper end.
2. The easily-assembled and disassembled foundation pit supporting structure according to claim 1, wherein: the tensioning assembly comprises a turnbuckle (6) with one end hooked on the pull ring (15), the turnbuckle (6) is far away from one end of the pull ring and fixedly connected with a stay cable (16), and the stay cable (16) is far away from one end of the turnbuckle (6) and the upper end of the support frame (2) are connected.
3. The easily-assembled and disassembled foundation pit supporting structure according to claim 2, wherein: the peripheral wall of the upper end part of the support frame (2) is sleeved with a sleeve (7) attached to the peripheral wall of the support frame (2), and one end, far away from the turnbuckle (6), of the inhaul cable (16) is hinged to the peripheral wall of the sleeve (7).
4. The easily-assembled and disassembled foundation pit supporting structure according to claim 3, wherein: and a plurality of abutting bolts (8) are arranged on the peripheral wall of the sleeve (7) in a threaded manner.
5. The easily-assembled and disassembled foundation pit supporting structure according to claim 1, wherein: the upper end face of the supporting seat (5) is provided with a U-shaped groove (9) which is matched with the supporting frame (2) in an inserting mode in a penetrating mode.
6. The easily-assembled and disassembled foundation pit supporting structure according to claim 5, wherein: one side of the lower end surface of the supporting seat (5) far away from the U-shaped groove (9) is fixedly connected with a heel block (10).
7. The easily-assembled and disassembled foundation pit supporting structure according to claim 4, wherein: the utility model discloses a spiral shell, including sleeve (7), sleeve (7) lateral wall, the rigid coupling respectively has main pull rod (11) and vice pull rod (12), main pull rod (11) with the line of vice pull rod (12) adjacent one end with the axis of sleeve (7) is crossing, keep away from vice pull rod (12) the one end of sleeve (7) is provided with helicla flute (13), main pull rod (11) are kept away from the one end of sleeve (7) rotate be connected with the interior barrel (18) of helicla flute (13) screw thread adaptation, interior barrel (18) periphery wall rigid coupling has the rotation of being convenient for fixture block (14) of interior barrel (18).
8. The easily-assembled and disassembled foundation pit supporting structure according to claim 1, wherein: the support frame (2) comprises a steel pipe, and reinforced concrete is poured in the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920989951.4U CN210712857U (en) | 2019-06-26 | 2019-06-26 | Easy dismouting formula underground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920989951.4U CN210712857U (en) | 2019-06-26 | 2019-06-26 | Easy dismouting formula underground structure |
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| Publication Number | Publication Date |
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| CN210712857U true CN210712857U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920989951.4U Expired - Fee Related CN210712857U (en) | 2019-06-26 | 2019-06-26 | Easy dismouting formula underground structure |
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| CN (1) | CN210712857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761168A (en) * | 2021-03-24 | 2021-05-07 | 无锡荣梁建设发展有限公司 | Foundation pit supporting device |
-
2019
- 2019-06-26 CN CN201920989951.4U patent/CN210712857U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761168A (en) * | 2021-03-24 | 2021-05-07 | 无锡荣梁建设发展有限公司 | Foundation pit supporting device |
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