CN212001139U - Deep foundation pit supporting structure capable of preventing deformation - Google Patents
Deep foundation pit supporting structure capable of preventing deformation Download PDFInfo
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- CN212001139U CN212001139U CN202020126578.2U CN202020126578U CN212001139U CN 212001139 U CN212001139 U CN 212001139U CN 202020126578 U CN202020126578 U CN 202020126578U CN 212001139 U CN212001139 U CN 212001139U
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Abstract
The utility model relates to a deep foundation pit supporting structure for preventing deformation, which comprises an L-shaped side plate arranged in a deep foundation pit, a supporting seat fixed on the inner bottom surface of the deep foundation pit and an inclined supporting rod, wherein two ends of the inclined supporting rod are respectively connected with the side wall of the L-shaped side plate, which is far away from the inner side wall of the deep foundation pit, and the top of the supporting seat; the bottom surface of the L-shaped side plate is attached to and fixed with the inner bottom surface of the deep foundation pit, the L-shaped side plate is attached to and abutted against the inner side wall of the deep foundation pit, and the supporting seat is fixed with the inner bottom surface of the deep foundation pit; be equipped with the waterproof layer between L shape curb plate and the deep basal pit inside wall, the waterproof layer is by including laying geogrid on the deep basal pit inside wall, the back up coat that forms by C35 concrete placement and the barrier layer that forms by the pouring of pea gravel concrete between deep basal pit inside wall to the L shape curb plate in proper order. The utility model discloses have the effect that prevents the infiltration of foundation ditch inside wall.
Description
Technical Field
The utility model belongs to the technical field of the technique of foundation ditch construction and specifically relates to a prevent deep basal pit supporting construction of deformation.
Background
The foundation ditch must arouse the deformation of surrounding soil body in the excavation process, produces the influence to surrounding building and underground pipeline, and serious will endanger its normal use or safety, in order to avoid this kind of condition can increase the support system in deep foundation design and hole construction and stabilize foundation ditch safety, at present mainly have three kinds of forms: horizontal bracing, diagonal bracing and reverse anchoring technology. The horizontal support is widely applied to deep foundation pits at present, but the horizontal support occupies a large amount of space in the pit, has long construction period, is not beneficial to earth digging operation, has large potential safety hazard during later-period demolition, not only improves the engineering cost, but also is not beneficial to environmental protection; the reverse anchoring technology is a new technology popularized in recent years, and has the advantages that the foundation pit is open, the excavation and structure construction are convenient, but the group anchor effect is easy to generate, the safety coefficient is small, the stability is poor, and the construction process is complicated and long in period; the diagonal brace is mainly used for center ring island type construction of an ultra-large foundation pit, has economic advantages compared with a horizontal brace, needs to be excavated in the center of the foundation pit firstly in construction, can be constructed after bottom plate construction is completed, and must reserve a construction joint when building structure construction, so that the construction period is long due to complicated procedures, and later-stage dismantling and structure processing are difficult. In addition, with the rapid advance of urban construction in China, more and more construction projects face karst geological conditions. In terms of foundation pit engineering under karst geological conditions, as karst geology is rich in fracture water, the side wall and the bottom of a foundation pit face serious karst fracture water problems in the foundation pit excavation process.
The Chinese patent with the publication number of CN109972625A discloses a deep foundation pit supporting structure, which comprises side plates, a bottom plate, supporting rods, supporting bases, a first inserting anchor rod, a second inserting anchor rod and a fixing anchor rod, wherein the two supporting bases are respectively hinged to two sides of the supporting rods, the two supporting bases are respectively and fixedly installed on the side plates and the bottom plate, installation holes are respectively formed in the side plates and the bottom plate, the first inserting anchor rod and the second inserting anchor rod respectively comprise a hollow body, a threaded rod, a driving disc and a plurality of inserting plates which are connected to the circumferential side wall of the driving disc in a sliding mode, sliding grooves which correspond to the inserting plates one to one are formed in the circumferential side wall of the body, the inserting plates are respectively inserted into the sliding grooves in a sliding mode through the driving disc, and the first inserting anchor rod and the second inserting anchor rod.
The above prior art solutions have the following drawbacks: the side plate of the supporting structure is not connected with the inner bottom surface of the foundation pit, and an anti-seepage waterproof design is lacked between the side plate and the inner side wall of the foundation pit, so that the problem of water seepage is easily caused in the construction environment of karst geology, and the construction in the foundation pit is influenced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a prevent deep basal pit supporting construction of deformation, it has the effect that prevents the infiltration of foundation ditch inside wall.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a deep foundation pit supporting structure capable of preventing deformation comprises an L-shaped side plate arranged in a deep foundation pit, a supporting seat fixed on the inner bottom surface of the deep foundation pit and an inclined supporting rod, wherein two ends of the inclined supporting rod are respectively connected with the side wall of the L-shaped side plate, which is far away from the inner side wall of the deep foundation pit, and the top of the supporting seat; the bottom surface of the L-shaped side plate is attached to and fixed with the inner bottom surface of the deep foundation pit, the L-shaped side plate is attached to and abutted against the inner side wall of the deep foundation pit, and the supporting seat is fixed with the inner bottom surface of the deep foundation pit; be equipped with the waterproof layer between L shape curb plate and the deep basal pit inside wall, the waterproof layer is by including laying geogrid on the deep basal pit inside wall, the back up coat that forms by C35 concrete placement and the barrier layer that forms by the pouring of pea gravel concrete between deep basal pit inside wall to the L shape curb plate in proper order.
Through adopting above-mentioned technical scheme, L shape curb plate and deep basal pit inside wall laminating and offset, and L shape curb plate has covered the corner between deep basal pit inside wall and the interior bottom surface, and the setting of bracing piece and supporting seat, the inside wall of deep basal pit has effectively been supported, prevent that deep basal pit inside wall from warping and collapsing, furthermore, geogrid has covered the deep basal pit inside wall, including the setting of back up coat, the inside wall of deep basal pit has been consolidated, further the deformation of deep basal pit inside wall is collapsed, and the barrier is formed by fine stone concrete placement, compactness is high, the infiltration of effective separation moisture, thereby prevent that the moisture in the deep basal pit inside wall from permeating to the deep basal pit in, guarantee going on smoothly of construction in the deep basal pit.
The present invention may be further configured in a preferred embodiment as: a first ground nail is arranged on the L-shaped side plate, vertically penetrates through the bottom surface of the L-shaped side plate and penetrates into the inner bottom surface of the deep foundation pit; and a second ground nail is arranged on the supporting seat, vertically penetrates through the supporting seat and penetrates into the bottom surface of the deep foundation pit.
Through adopting above-mentioned technical scheme, first ground nail and second ground nail are all nailed in the deep basal pit inner bottom surface to make L shape curb plate and supporting seat all with deep basal pit inner bottom fixed, strengthened this supporting construction and protected the support of deep basal pit, and convenient to use.
The present invention may be further configured in a preferred embodiment as: the supporting seat is provided with a filling opening, a filling hole which is aligned with and communicated with the filling opening is formed in the bottom surface of the deep foundation pit on the lower side of the supporting seat, and the filling hole and the filling opening are internally filled with concrete to form a reinforcing pile.
Through adopting above-mentioned technical scheme, after the supporting seat installation, constructor forms the reinforcement pile through pouring into mouthful downthehole concreting of orientation pouring, and the reinforcement pile that forms bonds fixedly with the mouth inner wall of pouring for form the horizontal restraint between the bottom surface in supporting seat and the deep basal pit, strengthened being connected between the bottom surface in supporting seat and the deep basal pit.
The present invention may be further configured in a preferred embodiment as: the upper surface of the supporting seat is provided with a reinforcing cover, and an opening of the reinforcing cover faces downwards and is fixed with the upper surface of the supporting seat; the opening of the reinforcing cover is aligned with the filling opening, the inner diameter of the reinforcing cover is larger than that of the filling opening, and the upper surface of the reinforcing cover is provided with a communicating hole.
Through adopting above-mentioned technical scheme, when pouring the reinforced pile, the concrete overflows full filling hole and fills the mouth and be full of with the reinforcing lid, and after the reinforcing pile solidifies, the reinforcing pile is located the part of reinforcing lid and supporting seat upper surface fixed, forms the vertical restraint to the supporting seat, and the bottom breaks away from in preventing supporting seat and the deep basal pit to strengthened supporting seat and the supporting role of bracing piece to L shape curb plate, prevented that the deep basal pit inside wall warp and sinks.
The present invention may be further configured in a preferred embodiment as: the supporting rod comprises a threaded rod, a threaded sleeve and a rotating block, one end of the threaded rod is hinged with the L-shaped side plate, and the other end of the threaded rod penetrates into an opening of the threaded sleeve and is in threaded fit with the threaded sleeve; the rotating block is hinged with the top of the supporting seat and is rotatably connected with one end, far away from the threaded rod, of the threaded sleeve; the rotating axis of the threaded sleeve relative to the rotating block coincides with the axis of the threaded rod, and the rotating axis of the rotating block relative to the supporting seat is parallel to the rotating axis of the threaded rod relative to the L-shaped side plate.
Through adopting above-mentioned technical scheme, when the thread bush rotated for the threaded rod, the distance between the tip that thread bush and threaded rod kept away from each other increased for the length increase of bracing piece makes things convenient for constructor to adjust the mounted position of supporting seat and the inclination of bracing piece, prevents that the bottom damage from influencing the installation of supporting seat in the deep basal pit.
The present invention may be further configured in a preferred embodiment as: the reinforcing nut is in threaded fit with the threaded rod in a sleeved mode, and a rubber layer is fixed on the surface, close to the threaded sleeve, of the reinforcing nut.
Through adopting above-mentioned technical scheme, after the thread bush rotates, constructor rotates the reinforcement nut for the rubber layer of reinforcement nut offsets with the opening surface of thread bush, thereby has strengthened the joint strength between threaded rod and the thread bush, and the setting on rubber layer has blockked up the thread clearance between thread bush opening and the threaded rod, is favorable to preventing that the rainwater from getting into the threaded rod and corroding the screw thread between threaded rod and the thread bush.
The present invention may be further configured in a preferred embodiment as: and a right-angled triangular reinforcing plate is fixed between the side wall of the L-shaped side plate close to the supporting seat and the surface of the first ground nail.
Through adopting above-mentioned technical scheme, the setting of reinforcing plate for form triangular support structure on the L shape curb plate, be favorable to strengthening the structural strength of L shape curb plate, promote the supporting role of L shape curb plate to the deep basal pit inside wall.
The present invention may be further configured in a preferred embodiment as: and a binding rope for binding the supporting rod is fixed on the reinforcing plate.
Through adopting above-mentioned technical scheme, when transporting this supporting construction, the thread bush rotates for the length of bracing piece reduces, then the threaded rod rotates, thereby on making bracing piece and supporting seat income L shape curb plate, then constructor bindes the bracing piece through the strapping rope, has reduced this supporting construction's area, is convenient for deposit and transport of this supporting construction.
To sum up, the utility model discloses a following at least one useful technological effect:
the L-shaped side plate is attached to and abutted against the inner side wall of the deep foundation pit, the L-shaped side plate covers a corner between the inner side wall and the inner bottom surface of the deep foundation pit, and the impermeable layer is formed by pouring fine stone concrete, so that the compactness is high, the permeation of moisture is effectively blocked, the moisture in the inner side wall of the deep foundation pit is prevented from permeating into the deep foundation pit, and the smooth proceeding of construction in the deep foundation pit is ensured;
the reinforcing piles are fixedly bonded with the inner wall of the filling opening, so that horizontal restraint is formed between the supporting seat and the inner bottom surface of the deep foundation pit, and connection between the supporting seat and the inner bottom surface of the deep foundation pit is enhanced;
when the reinforcing pile solidifies, the part of the reinforcing pile in the reinforcing cover is fixed to the upper surface of the supporting seat, vertical restraint on the supporting seat is formed, the bottom surface in the supporting seat and the deep foundation pit is prevented from being separated, therefore, the supporting effect of the supporting seat and the supporting rod on the L-shaped side plate is enhanced, and the deformation and the collapse of the inner side wall of the deep foundation pit are prevented.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Reference numerals: 1. an L-shaped side plate; 11. a first ground nail; 12. a reinforcing plate; 13. a binding rope; 2. a waterproof layer; 21. a geogrid; 22. a reinforcement layer; 23. an impermeable layer; 3. a supporting seat; 31. a second ground nail; 32. reinforcing the cover; 321. a communicating hole; 33. an infusion port; 34. a perfusion hole; 35. reinforcing piles; 4. a support bar; 41. a threaded rod; 42. a threaded sleeve; 43. rotating the block; 44. reinforcing the nut; 441. a rubber layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, do the utility model discloses a prevent deep basal pit supporting construction of deformation, including L shape curb plate 1, waterproof layer 2, supporting seat 3 and bracing piece 4. The cross-section of L shape curb plate 1 is L shape, and its length direction extends along the inside wall of deep basal pit, and the bottom surface of L shape curb plate 1 and the bottom surface laminating in the deep basal pit are balanced. Be equipped with first ground nail 11 on the L shape curb plate 1, the tip of first ground nail 11 is vertical to pass 1 horizontal segment upper surface of L shape curb plate, 1 bottom surface of L shape curb plate in proper order and to nail into in the deep basal pit bottom surface to make L shape curb plate 1 and deep basal pit in the bottom surface fixed. The first ground nails 11 are provided with a plurality of first ground nails 11 which are uniformly arranged along the length direction of the L-shaped side plate 1. Waterproof layer 2 sets up between L shape curb plate 1 and deep basal pit inside wall, and waterproof layer 2 includes geogrid 21, back up coat 22 and barrier layer 23 by deep basal pit inside wall to the direction of L shape curb plate 1 in proper order, and geogrid 21 is current building material, and it is latticed, and its lays on the inside wall of deep basal pit. The reinforcing layer 22 is formed by pouring C35 concrete on the geogrid 21, the reinforcing layer 22 is arranged in parallel with the inner side wall of the deep foundation pit, and the concrete in the reinforcing layer 22 passes through the grids of the geogrid 21 and is fixedly bonded with the inner side wall of the deep foundation pit. The impermeable layer 23 is formed by pouring fine aggregate concrete on the surface of the reinforcing layer 22 close to the L-shaped side plate 1, the fine aggregate concrete has compactness, and moisture permeating out of the inner side wall of the deep foundation pit is blocked.
Referring to fig. 1, the support base 3 is in a rectangular plate shape and is disposed in the deep foundation pit, and the bottom surface of the support base 3 is attached to and abutted against the bottom surface of the deep foundation pit. Be equipped with second ground nail 31 and reinforced lid 32 on the supporting seat 3, the tip of second ground nail 31 is vertical to be passed supporting seat 3 upper surface and supporting seat 3 bottom surface and to be nailed in the deep basal pit inner bottom surface to make supporting seat 3 and deep basal pit inner bottom fixed. The reinforcing cover 32 is in a circular cover shape, the opening of the reinforcing cover faces downwards and is fixed with the upper surface of the support base 3, the upper surface of the reinforcing cover 32 is provided with a communicating hole 321, the opening of the communicating hole 321 is circular, and the axis of the communicating hole 321 is overlapped with the axis of the reinforcing cover 32. The upper surface of the supporting seat 3 is provided with a filling opening 33, the opening of the filling opening 33 is circular, the axis of the filling opening is superposed with the axis of the reinforcing cover 32, and the inner diameter of the filling opening 33 is smaller than the inner diameter of the reinforcing cover 32. The bottom surface in the deep basal pit of supporting seat 3 downside has seted up filling hole 34, and the opening of filling hole 34 is circular, and the axis of filling hole 34 and the coincidence of the axis of pouring into mouth 33. After in the second ground nail 31 nailed in the deep basal pit inner bottom surface, constructor passes through the intercommunicating pore 321, pours into mouthful 33 and pours concrete into towards pouring hole 34, until the concrete fills up with reinforcing lid 32, treats the concrete solidification back, forms reinforced pile 35, and reinforced pile 35 and deep basal pit bottom surface, pouring into mouthful 33 inside wall, 3 upper surfaces of supporting seat and reinforcing lid 32 inner wall all bond fixedly this moment to the fixed connection of bottom surface in supporting seat 3 and the deep basal pit has been strengthened.
Referring to fig. 1, the support rod 4 includes a threaded rod 41, a threaded sleeve 42, a rotating block 43 and a reinforcing nut 44, the threaded rod 41 is a rod-shaped structure with a circular cross section, and is disposed obliquely, the upper end of the threaded rod 41 is hinged to the side wall of the L-shaped side plate 1 near the support seat 3, and the rotating axis of the threaded rod 41 relative to the L-shaped side plate 1 is parallel to the length direction of the L-shaped side plate 1. The threaded sleeve 42 is a sleeve-shaped structure with a circular opening, is obliquely arranged, and the opening is sleeved at the lower end of the threaded rod 41 and is in threaded fit with the threaded rod 41. The rotating block 43 is in a cylindrical block shape, the axis of the rotating block 43 coincides with the axis of the threaded sleeve 42, the upper end of the rotating block 43 is rotatably connected with the end face of the lower end of the threaded sleeve 42, the lower end of the rotating block 43 is hinged to the upper surface of the supporting seat 3, the rotating axis of the rotating block 43 relative to the threaded sleeve 42 coincides with the axis of the threaded sleeve 42, and the rotating axis of the rotating block 43 relative to the supporting seat 3 is parallel to the rotating axis of the threaded rod 41 relative to the L-shaped side plate 1. The reinforcing nut 44 is sleeved on the threaded rod 41 and in threaded fit with the threaded rod, a rubber layer 441 overlapped with the end face of the reinforcing nut 44 is fixed on the end face of the reinforcing nut 44 close to the threaded sleeve 42, and when the threaded sleeve 42 is rotated, a constructor rotates the reinforcing nut 44 to enable the rubber layer 441 on the reinforcing nut 44 to be abutted against an opening of the threaded sleeve 42, so that the sealing performance between the threaded sleeve 42 and the threaded rod 41 is enhanced, and the connection strength between the threaded sleeve 42 and the threaded rod 41 is also enhanced. In addition, be equipped with reinforcing plate 12 on the L shape curb plate 1, reinforcing plate 12 is right triangle platelike, and its both sides right-angle limit is fixed with the upper surface that L shape curb plate 1 is close to the lateral wall of supporting seat 3 and L shape curb plate 1 laminating deep basal pit inner bottom surface respectively to the structural strength of L shape curb plate 1 has been strengthened. Be equipped with strapping 13 on the reinforcing plate 12, strapping 13 is made by high strength nylon materials, 13 one end of strapping is fixed with the slope edge of reinforcing plate 12, the other end freely sets up, when transporting this supporting construction, thread bush 42 rotates, make the length of bracing piece 4 reduce, then threaded rod 41 rotates, thereby make bracing piece 4 and 3 income L shape curb plates 1 of supporting seat on, then constructor bindes bracing piece 4 through strapping 13, this supporting construction's area has been reduced, be convenient for this supporting construction deposit and transport.
The implementation principle of the embodiment is as follows: l shape curb plate 1 and deep basal pit inside wall laminating and offset, and L shape curb plate 1 has covered the corner between deep basal pit inside wall and the interior bottom surface, and bracing piece 4 and supporting seat 3's setting, the inside wall of deep basal pit has effectively been supported, prevent that deep basal pit inside wall from warping and collapsing, furthermore, geogrid 21 has covered the deep basal pit inside wall, including the setting of back up coat 22, the inside wall of deep basal pit has been consolidated, further the deformation of deep basal pit inside wall is collapsed, and barrier layer 23 is formed by fine stone concrete placement, the compactness is high, effective infiltration of separation moisture, thereby prevent that moisture in the deep basal pit inside wall from permeating to the deep basal pit in, guarantee going on smoothly of construction in the deep basal pit.
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 a prevent deep basal pit supporting construction of deformation which characterized in that: the support comprises an L-shaped side plate (1) arranged in a deep foundation pit, a support seat (3) fixed on the inner bottom surface of the deep foundation pit and an inclined support rod (4), wherein two ends of the inclined support rod (4) are respectively connected with the side wall of the L-shaped side plate (1) far away from the inner side wall of the deep foundation pit and the top of the support seat (3); the bottom surface of the L-shaped side plate (1) is attached to and fixed with the inner bottom surface of the deep foundation pit, the L-shaped side plate (1) is attached to and abutted against the inner side wall of the deep foundation pit, and the supporting seat (3) is fixed with the inner bottom surface of the deep foundation pit; be equipped with waterproof layer (2) between L shape curb plate (1) and the deep basal pit inside wall, waterproof layer (2) are by including laying geogrid (21) on the deep basal pit inside wall, reinforced coat (22) that form by C35 concrete placement and barrier layer (23) that form by the pouring of fine aggregate concrete between deep basal pit inside wall to L shape curb plate (1) in proper order.
2. The deep foundation pit supporting structure for preventing deformation according to claim 1, wherein: a first ground nail (11) is arranged on the L-shaped side plate (1), and the first ground nail (11) vertically penetrates through the bottom surface of the L-shaped side plate (1) and penetrates into the inner bottom surface of the deep foundation pit; be equipped with second ground nail (31) on supporting seat (3), second ground nail (31) vertically pass supporting seat (3) and penetrate in the deep basal pit bottom surface.
3. The deep foundation pit supporting structure for preventing deformation according to claim 2, wherein: the concrete reinforcing pile is characterized in that a filling opening (33) is formed in the supporting seat (3), a filling hole (34) which is aligned with and communicated with the filling opening (33) is formed in the bottom surface of the deep foundation pit on the lower side of the supporting seat (3), and the filling hole (34) and the filling opening (33) are filled with concrete to form a reinforcing pile (35).
4. A deformation-preventing deep foundation pit supporting construction according to claim 3, wherein: a reinforcing cover (32) is arranged on the upper surface of the supporting seat (3), and an opening of the reinforcing cover (32) faces downwards and is fixed with the upper surface of the supporting seat (3); the opening of the reinforcing cover (32) is aligned with the pouring opening (33), the inner diameter of the reinforcing cover (32) is larger than that of the pouring opening (33), and the upper surface of the reinforcing cover (32) is provided with a communication hole (321).
5. The deep foundation pit supporting structure for preventing deformation according to claim 1, wherein: the supporting rod (4) comprises a threaded rod (41), a threaded sleeve (42) and a rotating block (43), one end of the threaded rod (41) is hinged to the L-shaped side plate (1), and the other end of the threaded rod penetrates into an opening of the threaded sleeve (42) and is in threaded fit with the threaded sleeve (42); the rotating block (43) is hinged with the top of the supporting seat (3), and the rotating block (43) is rotatably connected with one end, far away from the threaded rod (41), of the threaded sleeve (42); the rotating axis of the threaded sleeve (42) relative to the rotating block (43) is coincident with the axis of the threaded rod (41), and the rotating axis of the rotating block (43) relative to the supporting seat (3) is parallel to the rotating axis of the threaded rod (41) relative to the L-shaped side plate (1).
6. The deep foundation pit supporting structure for preventing deformation according to claim 5, wherein: the reinforcing nut (44) in threaded fit with the threaded rod (41) is sleeved on the threaded rod (41), and a rubber layer (441) is fixed on the surface, close to the threaded sleeve (42), of the reinforcing nut (44).
7. The deep foundation pit supporting structure for preventing deformation according to claim 2, wherein: and a right-angled triangular reinforcing plate (12) is fixed between the side wall of the L-shaped side plate (1) close to the supporting seat (3) and the surface penetrating through the first ground nail (11).
8. A deformation-preventing deep foundation pit supporting construction according to claim 7, wherein: and a binding rope (13) for binding the supporting rod (4) is fixed on the reinforcing plate (12).
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| CN202020126578.2U CN212001139U (en) | 2020-01-19 | 2020-01-19 | Deep foundation pit supporting structure capable of preventing deformation |
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| CN202020126578.2U CN212001139U (en) | 2020-01-19 | 2020-01-19 | Deep foundation pit supporting structure capable of preventing deformation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417293A (en) * | 2021-05-28 | 2021-09-21 | 陶琳 | Building construction deep basal pit bearing structure |
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2020
- 2020-01-19 CN CN202020126578.2U patent/CN212001139U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417293A (en) * | 2021-05-28 | 2021-09-21 | 陶琳 | Building construction deep basal pit bearing structure |
| CN113417293B (en) * | 2021-05-28 | 2023-09-05 | 华中伟业建设集团有限公司 | Deep foundation pit supporting structure for building construction |
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