CN214460456U

CN214460456U - Sand-blocking water filtering device in foundation pit support

Info

Publication number: CN214460456U
Application number: CN202023101513.1U
Authority: CN
Inventors: 高龙浩; 陈记平; 范跃猛
Original assignee: Beijing Hongyu Environmental Engineering Co ltd
Current assignee: Beijing Hongyu Environmental Engineering Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-10-22
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to a keep off husky water filtering device among excavation supporting, the husky water filtering device that keeps off among one of them excavation supporting sets up in the excavation, including pasting the mount that leans on lateral wall around the excavation, the mount is provided with a water filtering cloth towards one side of excavation lateral wall, and one side that the support frame deviates from the excavation lateral wall is provided with the stay tube, and the vertical setting of stay tube is inserted and is established on the diapire of excavation. This application has the effect that reduces the loss of sand and soil in the lateral wall of foundation ditch when the lateral wall of foundation ditch gushes water.

Description

Sand-blocking water filtering device in foundation pit support

Technical Field

The utility model relates to a retaining sand water filtering device among foundation ditch support especially relates to a foundation ditch support's field.

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, the foundation pit determines an excavation scheme according to geological and hydrological data and the conditions of buildings nearby the site, and performs waterproof drainage work. In order to reduce the collapse of the side wall of the foundation pit, the side wall of the foundation pit needs to be protected for the foundation pit with deep pit depth. Common protection modes of foundation pits in the related field include soil nailing walls, composite soil nailing walls, micro piles and the like.

The foundation ditch is at the excavation in-process, along with the continuous deepening of excavation depth, and the soil nailing wall needs the downward installation of successive layer, appears gushing water when the foundation ditch is excavating. When gushing the sand phenomenon, if need use soil nail wall to protect, still need continue to excavate to satisfy the installation depth of soil nail wall. However, along with the water gushing, the sand and stone in the side wall of the foundation pit flow out, so that the filler in the side wall of the foundation pit is insufficient, and the strength of the foundation pit is affected.

SUMMERY OF THE UTILITY MODEL

In order to reduce when the foundation ditch lateral wall gushes water, the loss of sandy soil in the foundation ditch lateral wall, this application provides a fender sand water filtering device among the foundation ditch support.

The application provides a keep off husky water filtering device in excavation supporting adopts following technical scheme:

the utility model provides a keep off husky water filtering device among foundation ditch support, sets up in the foundation ditch, including pasting the mount that leans on lateral wall around the foundation ditch, the mount is provided with a water filtering cloth towards one side of foundation ditch lateral wall, and one side that the support frame deviates from the lateral wall of foundation ditch is provided with the stay tube, and the vertical setting of stay tube is inserted and is established on the diapire of foundation ditch.

Through adopting above-mentioned technical scheme, the stay tube is propped up and is established behind ground, and the stay tube carries on spacingly to the mount to make the mount will strain the centre gripping of water cloth on the foundation ditch lateral wall. When the phenomenon of water and sand gushing occurs on the side wall of the foundation pit, the sand and stone at the side wall of the foundation pit are blocked by the water filtering cloth and are limited on the side wall of the foundation pit, and the gushed underground water flows out through the filtering cloth. The setting of water filtering cloth has reduced the foundation ditch lateral wall when gushing water and gushing sand, the loss of soil property to reduced because foundation ditch lateral wall soil property runs off and lead to the filler not enough, thereby influenced the condition of foundation ditch lateral wall stability.

Optionally, the fixing frame comprises two layers of supporting nets, water-proof cloth is further arranged between the two layers of supporting nets, water outlet pipes for communicating two sides of the water-proof cloth are arranged on the water-proof cloth, and the water outlet pipes extend out of the fixing frame from one side, deviating from the water-proof cloth, of the water-proof cloth.

Through adopting above-mentioned technical scheme, the setting of two-layer supporting network has improved the bulk strength and the compressive capacity of mount, and two-layer supporting network can also carry out the centre gripping to water proof cloth simultaneously and fix to improved the stability of water proof cloth installation, when groundwater infiltration filtration water cloth, water proof cloth carries out the separation to groundwater, thereby groundwater can flow through the outlet pipe, and then made things convenient for and carried out recycle to groundwater.

Optionally, the outlet pipe is provided with a plurality of to a plurality of outlet pipe is along water proof cloth length direction evenly distributed and is close to foundation ditch diapire setting.

Through adopting above-mentioned technical scheme, the setting of a plurality of outlet pipes, when the foundation ditch lateral wall takes place to gush water and gush sand the phenomenon, the groundwater of gushing out can be flowing from the outlet pipe nearby, and the setting of a plurality of outlet pipes has still increased the biggest water yield that keeps off husky water filtering device, has reduced because the foundation ditch lateral wall water yield is too big and has leaded to the cracked condition of drainage cloth. The arrangement that the water outlet pipe is close to the ground enables the underground water to flow out of the water outlet pipe as much as possible, and therefore the use stability of the sand blocking and water filtering device is improved.

Optionally, the supporting net is formed by weaving a plurality of metal wires along the warp and weft directions, and the warp directions on the two supporting nets are inclined to each other.

Through adopting above-mentioned technical scheme, the setting of the mutual slope of the direction of weaving of wire in two supporting nets has improved the stretch-proofing ability of two sets of supporting nets to improved the supporting net and to the spacing fixed stability of water filtration cloth and water proof cloth.

Optionally, one side of the supporting tube facing the ground is provided with a supporting plate fixedly connected with the supporting tube, the supporting plate is attached to the bottom wall of the foundation pit, and one side of the supporting plate facing the bottom wall of the foundation pit is provided with a plurality of ground nails arranged in the ground.

Through adopting above-mentioned technical scheme, the staff can place the bearing board on foundation ditch ground to use the ground nail to fix the bearing board on the diapire of foundation ditch. Thereby improving the stability of the support column.

Optionally, a soil nailing wall is arranged on the portion, located above the supporting pipe, of the side wall of the foundation pit, a fixing piece is fixedly connected to the soil nailing wall, a fixing pin is inserted into the fixing piece, and the lower end of the fixing pin is inserted into the supporting pipe.

Through adopting above-mentioned technical scheme, the fixed pin is inserted simultaneously and is established between mounting and stay tube, and the mounting nail is established in the soil nail wall to the upper end of stay tube is spacing fixed by the fixed pin, and then has improved the holistic stability of stay tube.

Optionally, wear to be equipped with the wall nail in the mount, the wall nail passes water-proof cloth in proper order, inserts in the soil layer of foundation ditch lateral wall behind the water filtering cloth.

Through adopting above-mentioned technical scheme, the wall nail passes mount and drainage cloth to fix mount and foundation ditch lateral wall, thereby improved the stability that keeps off husky water filtering device and foundation ditch lateral wall paste each other and lean on.

Optionally, the wall nail is sleeved with a base plate, the base plate is located on one side, deviating from the side wall of the foundation pit, of the fixing frame, and the base plate and the head of the wall nail are clamped mutually.

Through adopting above-mentioned technical scheme, the setting of backing plate is followed the wall nail head to mount pressure dispersion for more wires on the supporting network share the pressure that comes from the wall nail, thereby protected the supporting network, improved the durability that keeps off husky water filtering device and use.

Optionally, a cross beam is arranged between two adjacent supporting tubes, two ends of the cross beam are respectively provided with a fixing plate used for being fixed with the supporting tubes, fixing holes are formed in the fixing plates, through holes matched with the through holes are formed in the corresponding supporting tubes, connecting bolts are arranged in the through holes and the fixing holes in a penetrating mode, and connecting nuts are arranged on the connecting bolts in a threaded fit mode.

Through adopting above-mentioned technical scheme, the setting of crossbeam has carried out further support to the supporting network to the intensity and the compressive property of supporting network have been improved. The stability of the supporting net in use is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the water gushing and sand gushing phenomena occur on the side wall of the foundation pit, the water filtering and sand blocking device limits the sand stones in the side wall of the foundation pit, so that the water and soil loss of the side wall of the foundation pit is reduced, and the possibility of reducing the stability of the side wall of the foundation pit is reduced;

2. the mounting is mutually supported with the fixed pin, fixes the upper end of stay tube to improved the stay tube and established the stability that deviates from foundation ditch lateral wall one side at the mount.

Drawings

Fig. 1 is a schematic structural diagram of the sand-blocking water filtering device in the embodiment of the present application.

FIG. 2 is an enlarged view of detail A of FIG. 1;

fig. 3 is an exploded view showing the connection relationship of the sand-blocking water filtering device.

Description of reference numerals: 1. soil nailing walls; 2. supporting a tube; 21. a support plate; 22. a ground nail; 23. a fixing assembly; 24. a fixing member; 25. a fixing pin; 26. a through hole; 3. a fixed mount; 31. a support net; 32. water-proof cloth; 33. a water outlet pipe; 34. a fixing frame; 4. water filtering cloth; 5. a base plate; 51. wall nails; 6. a cross beam; 61. a fixing plate; 611. a fixing hole; 62. a connecting bolt; 63. and connecting a nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a sand blocking and water filtering device in foundation pit support. Referring to fig. 1 and 2, soil nailing wall 1 is installed at the position of the side wall of the foundation pit far away from the ground, and sand blocking and water filtering device is arranged by leaning against the side wall of the foundation pit and is positioned below the soil nailing wall 1. Keep off husky water filtering device is provided with a mount 3 towards one side of foundation ditch lateral wall including inserting stay tube 2 of establishing on foundation ditch ground, stay tube 2, and one side that mount 3 deviates from stay tube 2 is provided with drainage cloth 4, and drainage cloth 4 pastes and leans on the foundation ditch lateral wall.

When the phenomenon that gushes water and gushes sand occurs on the side wall of the foundation pit, the water filtering cloth 4 can intercept sand and stone, and underground water can flow out through the water filtering cloth 4. Thereby completing the work of filtering water and blocking sand.

As shown in fig. 3, a plurality of support pipes 2 are provided, and the plurality of support pipes 2 are uniformly distributed along the length direction of the fixing frame 3. The supporting pipe 2 is a square steel pipe, the lower end of the supporting pipe 2 is fixedly connected with a supporting plate 21, the supporting plate 21 is horizontally arranged, and the supporting plate 21 is attached to the bottom wall of the foundation pit. One side that the bearing board 21 deviates from the supporting pipe 2 is provided with a plurality of ground nails 22, and a plurality of ground nails 22 are inserted in the diapire of the foundation pit, thereby making the supporting pipe 2 stand on the ground.

As shown in fig. 3, the upper end of the support tube 2 is further provided with a fixing assembly 23 for fixing the upper end of the support tube 2, the fixing assembly 23 comprises a fixing member 24 fixedly connected to the soil nailing wall 1 above the support tube 2, the fixing member 24 is U-shaped as a whole, and two ends of the fixing member 24 are nailed in the soil nailing wall 1 respectively, so that the bending portion of the fixing member 24 cooperates with the soil nailing wall 1 to form a closed annular space, the fixing assembly 23 further comprises a fixing pin 25, the fixing pin 25 is inserted into the annular space formed by the fixing member 24 and the soil nailing wall 1, and the lower end of the fixing pin 25 is inserted into the support tube 2. The fixing component 23 fixes the upper end of the supporting tube 2 and the soil nailing wall 1 to each other, thereby improving the stability of fixing the supporting tube 2.

As shown in fig. 3, the fixing frame 3 includes two supporting nets 31 disposed in parallel, and a water-proof cloth 32 is interposed between the two supporting nets 31. The water-proof cloth 32 is fixedly connected with a water outlet pipe 33, the water outlet pipe 33 is used for communicating two sides of the water-proof cloth 32, and the water outlet pipe 33 extends out of the supporting net 31 along one side far away from the side wall of the foundation pit. The water outlet pipes 33 are provided with a plurality of water outlet pipes 33, and the water outlet pipes 33 are uniformly distributed along the length direction of the water-proof cloth 32 and are arranged close to the bottom wall of the foundation pit. A fixing frame 34 is arranged on the outer side of the waterproof cloth 32, and the fixing frame 34 is fixedly connected with four sides of the waterproof cloth 32. The support nets 31 located at both sides of the water-proof cloth 32 are fixedly connected with the fixing frame 34, so that the water-proof cloth 32 is clamped and fixed by the two support nets 31. The water-proof cloth 32 and the supporting net 31 are fixed into a whole by the fixing frame 34, so that the water-proof cloth 32 is protected, and when water gushing occurs on the side wall of the foundation pit, the supporting net 31 positioned on the outer side can stably support the water-proof cloth 32, so that the situation that the water-proof cloth 32 is broken due to compression is reduced, and the use stability of the water-proof cloth 32 is improved.

The fixing frame 3 is provided with a plurality of fixing frames 3 which are fixedly connected with each other according to the size of the foundation pit, and the fixing frame 34 can be bound by adopting an iron wire in a specific fixedly connecting mode and welded or connected with one or more of the fixing frames 34 through bolts and nuts.

The supporting net 31 is made of iron wires and is formed by weaving a plurality of groups of iron wires which are perpendicular to each other along the longitude and latitude directions, two supporting nets 31 are arranged, and the two supporting nets 31 are arranged in parallel; the iron wires in one of the supporting nets 31 are arranged along the horizontal direction or the vertical direction, and the iron wires in the other supporting net 31 are arranged obliquely. The arrangement of two supporting nets 31 can carry out the centre gripping to water proof cloth 32 on the one hand and fix, and on the other hand has improved the bulk strength of mount 3. The mutual inclined arrangement of the metal wires on the two supporting nets 31 improves the anti-pulling capability of the fixing frame 3 along a plurality of directions, thereby further improving the stability of the fixing frame 3 for supporting the water filtering cloth 4 and the water separating cloth 32.

One side of the fixing frame 3 deviating from the foundation pit wall is also provided with a backing plate 5, and a wall nail 51 is arranged on the backing plate 5 in a penetrating way. After wall nail 51 passed backing plate 5, passed outer supporting network 31 in proper order, water proof cloth 32, inner supporting network 31, insert in the foundation ditch lateral wall behind the drainage cloth 4 to the head of wall nail 51 is fixed with the 5 screens of backing plate, thereby further fixes mount 3 and foundation ditch lateral wall through the extrusion between wall nail 51 and the foundation ditch lateral wall, thereby has improved the compactness that husky drainage device and foundation ditch lateral wall pasted. The setting of backing plate 5 disperses the pressure of the head of wall nail 51 to fixing frame 3, so that more metal wires on supporting net 31 share the pressure from wall nail 51, thereby protecting supporting net 31 and improving the durability of the sand-blocking water filtering device.

As shown in fig. 3, a cross beam 6 is further disposed between two adjacent support tubes 2, two ends of the cross beam 6 are respectively fixedly connected with a fixing plate 61, and a plane of the fixing plate 61 is perpendicular to the length direction of the cross beam 6. The two fixing plates 61 each rest against a side wall of the corresponding two support tubes 2. Fixing hole 611 is formed in fixing plate 61, through hole 26 is formed in support tube 2 correspondingly, connecting bolt 62 is simultaneously arranged in through hole 26 and fixing hole 611 in a penetrating mode, connecting nut 63 is arranged at the end of connecting bolt 62 in a threaded fit mode, the head of connecting bolt 62 and connecting nut 63 are respectively located on two sides of support tube 2 opposite to fixing plate 61, and therefore support tube 2 and cross beam 6 are fixed to each other through threaded fit between connecting bolt 62 and connecting nut 63. The cross beam 6 is arranged to further support the supporting net 31, so that the strength and the pressure resistance of the supporting net 31 are improved. The stability of the use of the support net 31 is improved. The fixing pin 25 is further provided with a yielding groove for yielding the connecting bolt 62, and when the fixing pin 25 is inserted into the support tube 2, the connecting bolt 62 is located in the yielding groove.

The implementation principle of the sand blocking and water filtering device in the foundation pit support of the embodiment of the application is as follows: when the staff installation keeps off husky water filtering device, at first the staff pastes the cloth 4 of straining and establishes at mount 3 to paste the one side that is provided with cloth 4 of straining with mount 3 and establish on the lateral wall of foundation ditch, then the staff inserts stay tube 2 and establishes the one side that the mount 3 deviates from the foundation ditch lateral wall, thereby presss from both sides mount 3 through stay tube 2 and establishes between stay tube 2 and the foundation ditch lateral wall. Then, the worker nails a fixing member 24 to the soil nailing wall 1 above the support pipe 2, inserts a fixing pin 25 into an annular space formed by the fixing member 24 and the side wall of the foundation pit, and inserts the lower end of the fixing pin 25 into the support pipe 2, thereby fixing the upper end of the support pipe 2. Finally, the staff can also sleeve the base plate 5 on the wall nail 51, pass the wall nail 51 through the fixing frame 3 and the water filtering cloth 4, and fix the two on the side wall of the foundation pit more stably. Thereby completing the installation of the sand-blocking water filtering device. When the phenomenon of gushing water and gushing sand occurs on the side wall of the foundation pit, the underground water flows through the water filtering cloth 4 and flows out from the water outlet pipe 33, and the sand and stone are blocked by the water filtering cloth 4, so that the loss of the sand and stone in the foundation pit is reduced, and the strength of the side wall of the foundation pit is protected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a keep off husky water filtering device among foundation ditch support, sets up in the foundation ditch, its characterized in that: including pasting mount (3) of leaning on lateral wall around the foundation ditch, one side that mount (3) faced the foundation ditch lateral wall is provided with one and strains water cloth (4), and one side that the support frame deviates from the foundation ditch lateral wall is provided with stay tube (2), and the vertical setting of stay tube (2) is inserted and is established on the diapire of foundation ditch.

2. The sand and water blocking and filtering device in foundation pit support according to claim 1, wherein: the fixing frame (3) comprises two layers of supporting nets (31), a water-proof cloth (32) is further arranged between the two layers of supporting nets (31), a water outlet pipe (33) communicated with the two sides of the water-proof cloth (32) is arranged on the water-proof cloth (32), and the water outlet pipe (33) extends out of the fixing frame (3) from one side, deviating from the water filtering cloth (4), of the water-proof cloth (32).

3. The sand and water blocking and filtering device in foundation pit support according to claim 2, wherein: the water outlet pipes (33) are provided with a plurality of water outlet pipes, and the water outlet pipes (33) are evenly distributed along the length direction of the waterproof cloth (32) and are arranged close to the bottom wall of the foundation pit.

4. The sand and water blocking and filtering device in foundation pit support according to claim 2, wherein: the supporting nets (31) are formed by weaving a plurality of metal wires along the warp and weft directions, and the warp directions on the two supporting nets (31) are mutually inclined.

5. The sand and water blocking and filtering device in foundation pit support according to claim 1, wherein: one side of the supporting pipe (2) facing the ground is provided with a bearing plate (21) fixedly connected with the supporting pipe, the bearing plate (21) is attached to the bottom wall of the foundation pit, and one side of the bearing plate (21) facing the bottom wall of the foundation pit is provided with a plurality of ground nails (22) nailed in the ground.

6. The sand and water blocking and filtering device in foundation pit support according to claim 1 or 5, wherein: the part of the side wall of the foundation pit above the supporting pipe (2) is provided with a soil nailing wall (1), a fixing piece (24) is fixedly connected to the soil nailing wall (1), a fixing pin (25) is inserted into the fixing piece (24), and the lower end of the fixing pin (25) is inserted into the supporting pipe (2).

7. The sand and water blocking and filtering device in foundation pit support according to claim 1, wherein: wall nails (51) penetrate through the fixing frame (3), the wall nails (51) sequentially penetrate through the water-insulating cloth (32), and the water-filtering cloth (4) is inserted into a soil layer of the side wall of the foundation pit.

8. The sand and water blocking and filtering device in foundation pit support according to claim 7, wherein: the wall nail (51) is sleeved with a base plate (5), the base plate (5) is located on one side, deviating from the side wall of the foundation pit, of the fixing frame (3), and the base plate and the head of the wall nail (51) are clamped mutually.

9. The sand and water blocking and filtering device in foundation pit support according to claim 1, wherein: be provided with crossbeam (6) between two adjacent stay tubes (2), the both ends of crossbeam (6) respectively are provided with one and are used for fixed plate (61) with stay tube (2), have seted up fixed orifices (611) on fixed plate (61), correspond to set up on stay tube (2) with through-hole (26) complex through-hole (26), wear to be equipped with connecting bolt (62) simultaneously in through-hole (26) and fixed orifices (611), threaded fit has coupling nut (63) on connecting bolt (62).