CN113529745B - Stagnant water envelope of soft soil foundation building foundation ditch - Google Patents
Stagnant water envelope of soft soil foundation building foundation ditch Download PDFInfo
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- CN113529745B CN113529745B CN202110977817.4A CN202110977817A CN113529745B CN 113529745 B CN113529745 B CN 113529745B CN 202110977817 A CN202110977817 A CN 202110977817A CN 113529745 B CN113529745 B CN 113529745B
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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
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a water-stopping enclosure structure for a soft soil foundation building foundation pit. The water-stopping enclosure structure of the soft soil foundation building foundation pit comprises a drill bit; a stirring mechanism; an extrusion mechanism; a connecting mechanism; the spraying mechanism comprises a joint, a connecting rod, a stirring rod, a limiting ring, a blanking ring and a sprayer, wherein the top end of the truncated cone-shaped joint is overlapped with the inside of the sprayer, and the stirring rod is connected between the blanking ring and the limiting ring in a sliding manner; the compression mechanism comprises a supporting rod, a limiting rod, a first gear, fan blades, a fixing block, a second gear, a rotating rod, saw teeth and an installation rod, the supporting rod is installed inside the stirring mechanism, the connecting rod is installed on the side wall of the supporting rod in an inclined mode, and the first gear is meshed with the second gear and the saw teeth; a feeding mechanism. The water-stopping enclosure structure of the soft soil foundation building foundation pit has the advantages that the curing agent is quickly sprayed into soil, and the uniformity of the curing agent soil is improved.
Description
Technical Field
The invention relates to the technical field of soft soil foundation water-stopping enclosures, in particular to a water-stopping enclosure structure of a soft soil foundation building foundation pit.
Background
A solidifying agent soil stirring pile is used for reinforcing saturated soft clay foundation, and is characterized by that it utilizes solidifying agent as solidifying agent, and utilizes a special stirring machine to forcedly stir the soft soil and solidifying agent in the deep position of foundation, and utilizes a series of physical and chemical reactions produced between solidifying agent and soft soil to make the soft soil be hardened into high-quality foundation with integrity, water stability and a certain strength.
When the mode that uses to spout futilely consolidates ground inside, spout the in-process ash hole futilely and take place to block up easily, reduced and sprayed efficiency, and from the dry curing agent surface drying of blowout in the ash hole, in the same place with the adhesion with earth mixing process, lead to curing agent soil homogeneity relatively poor, reduced the fastness of ground.
Disclosure of Invention
The invention aims to provide a water-stopping enclosure structure of a soft soil foundation building foundation pit, which can quickly spray a curing agent into soil and improve the uniformity of the curing agent soil.
In order to solve the technical problem, the invention provides a water-stopping enclosure structure of a soft soil foundation building foundation pit, which comprises: a drill bit; the bottom end of the stirring mechanism is fixedly connected with the drill bit; the bottom end of the extrusion mechanism is provided with the stirring mechanism; the connecting mechanism is fixed at the top end of the extrusion mechanism; the spraying mechanism comprises a joint, a connecting rod, a stirring rod, a limiting ring, a blanking ring and a sprayer, wherein the side wall of the stirring mechanism is symmetrically provided with a plurality of sprayers and the joints, and the top ends of the joints in the shape of a circular truncated cone are overlapped with the insides of the sprayers; the side wall of the joint is provided with the limit ring with a triangular cross section, and the bottom end of the sprinkler is provided with the blanking ring with an arc-shaped side wall; the connecting rod is arranged in the sprinkler, the stirring rod with the V-shaped side wall is arranged at the bottom end of the connecting rod, and the stirring rod is connected between the blanking ring and the limiting ring in a sliding manner; the compression mechanism comprises a supporting rod, a limiting rod, a first gear, fan blades, a fixing block, a second gear, a rotating rod, sawteeth and an installation rod, the supporting rod is installed inside the stirring mechanism, the connecting rod is installed on the side wall of the supporting rod in an inclined mode, the limiting rod is installed on the side wall of the connecting rod, the top end of the limiting rod is rotatably connected with the first gear, and the first gear is meshed with the second gear and the sawteeth; the sawteeth are arranged on the inner side wall of the top end of the sprinkler at equal intervals, and the second gear is fixedly connected with the bottom end of the rotating rod; the top end of the supporting rod is provided with the mounting rod, the side wall of the mounting rod is rotatably connected with the rotating rod, and the side wall of the rotating rod is fixedly connected with the fan blades; the side wall of the supporting rod is equidistantly provided with the conical fixed blocks, and the hollow fixed blocks are rotatably connected with the fan blades; and the feeding mechanism is rotationally connected with the extrusion mechanism.
Preferably, rabbling mechanism includes stirring board, first drilling rod and anchor strut, the top fixed connection of drill bit first drilling rod, the lateral wall equidistance installation lateral wall of first drilling rod is curved stirring board, a plurality of lateral walls of the lateral wall symmetry installation of first drilling rod are curved the anchor strut.
Preferably, the sidewall of the first drill rod fixedly connects the joint and the sprinkler whose sidewall is arc-shaped, the center of the sprinkler is aligned with the center of the reinforcing rod, and the maximum diameter of the joint is greater than the maximum diameter of the sprinkler.
Preferably, the pressing mechanism comprises a first blade, a fixing rod, a second blade and a second drill rod, the top end of the first drill rod is fixedly connected with the second drill rod, and the side wall of the second drill rod is provided with the spiral second blade; the top end of the second drill rod is fixedly connected with the fixing rod, and the side wall of the fixing rod is provided with the spiral first blade.
Preferably, the longest vertical distance between the edge of the first blade and the circle center of the fixed rod is smaller than the longest vertical distance between the edge of the second blade and the circle center of the second drill rod; the longest vertical distance between the edge of the second blade and the circle center of the second drill rod is larger than the longest vertical distance between the edge of the stirring plate and the circle center of the reinforcing rod, and the longest vertical distance between the edge of the second blade and the circle center of the second drill rod is smaller than the maximum radius of the drill bit.
Preferably, coupling mechanism includes barrel, solid fixed ring sum inlet pipe, the top installation of dead lever gu fixed ring, gu fixed ring with the top of dead lever rotate connect in the inside of barrel, the top installation of barrel the inlet pipe.
Preferably, the support rod is fixedly connected to the inside of the cylinder, and the support rod is installed inside the fixing rod, the first drill rod, the second drill rod and the sprinkler.
Preferably, a through hole is formed in the bottom end of the hollow support rod, the through hole is located inside the fixing block, and the fixing block is located inside the first drill rod.
Preferably, feed mechanism includes fixed plate, stock and feeder hopper, the inside of feeder hopper is rotated and is connected first blade, the lateral wall symmetry installation of feeder hopper the fixed plate, the internally mounted of fixed plate the stock.
Compared with the prior art, the water stop enclosure structure of the soft soil foundation building foundation pit has the following beneficial effects:
the invention provides a water-stopping enclosure structure of a soft soil foundation building foundation pit, wherein when a curing agent continuously enters the extrusion mechanism and the stirring mechanism through a connecting mechanism, the curing agent quickly enters the ejector, the curing agent is contacted with a truncated cone-shaped joint, part of the curing agent moves downwards along the side wall of the joint, the other part of the curing agent penetrates through the joint and continues to move downwards in the stirring mechanism, the curing agent sliding downwards along the side wall of the joint enters soil from the zigzag movement between a blanking ring and a limiting ring, and one ends of the blanking ring and the limiting ring are mutually overlapped to prevent the soil from entering the ejector; at the moment, the sprinkler and the joint continuously rotate, the connecting rod and the stirring rod are fixed by the supporting rod, the connecting rod and the stirring rod do not synchronously rotate with the ejector, the stirring rod is positioned between the blanking ring and the joint, and along with the rotation of the blanking ring and the joint, impurities clamped between the blanking ring and the joint are pushed out by the stirring rod with the V-shaped side wall, so that the blockage between the blanking ring and the joint is avoided; the sprinkler drives the sawteeth to rotate, the sawteeth push the first gear to rotate, the first gear drives the second gear, the rotating rod and the fan blades to rotate, the diameter of the first gear is larger than that of the second gear, so that the rotating speed of the second gear is larger than that of the first gear, the rotating speed of the fan blades is increased, air is blown downwards quickly by the fan blades, the moving speed of the curing agent in the ejector is increased, the curing agent quickly penetrates through the sprinkler and enters soil, and the sprinkling efficiency is increased; when the curing agent is sprayed out to contact with the stirring mechanism, sand enters the feeding mechanism, the extrusion mechanism pushes the sand to continuously move downwards to contact with the stirring mechanism, the curing agent sprayed out from the side wall of the sprayer contacts with the sand firstly and is mixed with the sand and then contacts with soil, the bonding of the curing agent is avoided, and the stability and firmness of the foundation are improved as the sand enters the foundation; and the sand stops up drilling hole in the inside continuous downstream of drilling hole, makes the mixture of curing agent, sand and earth constantly to in the diffusion gets into the soil layer all around, prevents that the mixture of curing agent, sand and earth from spouting in drilling hole, increases the soft soil induration area to improve ground stagnant water effect.
Drawings
Fig. 1 is a schematic structural view of a water-stopping enclosure structure of a foundation pit of a soft soil foundation building provided by the invention;
FIG. 2 is a schematic view of the internal structure of the stirring mechanism shown in FIG. 1;
FIG. 3 is an enlarged view of the structure at A shown in FIG. 1;
FIG. 4 is an enlarged view of the structure at B in FIG. 1;
FIG. 5 is an enlarged view of the structure at C in FIG. 2;
FIG. 6 is a top view of the internal structure of the first drill rod shown in FIG. 1;
fig. 7 is an enlarged view of the structure shown at D in fig. 5.
The reference numbers in the figures: 1. the drilling head, 2, the stirring mechanism, 21, the stirring plate, 22, the first drill rod, 23, the reinforcing rod, 3, the feeding mechanism, 31, the fixing plate, 32, the anchor rod, 33, the feed hopper, 4, the extrusion mechanism, 41, the first blade, 42, the fixing rod, 43, the second blade, 44, the second drill rod, 5, the compression mechanism, 51, the supporting rod, 52, the limiting rod, 53, the first gear, 54, the fan blade, 55, the fixing block, 56, the second gear, 57, the rotating rod, 58, the sawtooth, 59, the mounting rod, 6, the spraying mechanism, 61, the joint, 62, the connecting rod, 63, the stirring rod, 64, the limiting ring, 65, the blanking ring, 66, the injector, 7, the connecting mechanism, 71, the cylinder, 72, the fixing ring, 73, the feeding pipe, 8 and the through hole.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7 in combination, wherein fig. 1 is a schematic structural diagram of a water-stopping enclosure structure of a soft soil foundation building foundation pit according to the present invention; FIG. 2 is a schematic view of the internal structure of the stirring mechanism shown in FIG. 1; FIG. 3 is an enlarged view of the structure at A shown in FIG. 1;
FIG. 4 is an enlarged view of the structure at B in FIG. 1; FIG. 5 is an enlarged view of the structure shown at C in FIG. 2; FIG. 6 is a top view of the internal structure of the first drill rod shown in FIG. 1; fig. 7 is an enlarged view of the structure shown at D in fig. 5. Stagnant water envelope of soft soil foundation structure foundation ditch includes: a drill bit 1; the bottom end of the stirring mechanism 2 is fixedly connected with the drill bit 1; the bottom end of the extrusion mechanism 4 is provided with the stirring mechanism 2; the connecting mechanism 7 is fixed at the top end of the extrusion mechanism 4; the spraying mechanism 6 comprises a joint 61, a connecting rod 62, a stirring rod 63, a limiting ring 64, a blanking ring 65 and a sprayer 66, the sprayer 66 and the joint 61 are symmetrically installed on the side wall of the stirring mechanism 2, and the top end of the joint 61 in a truncated cone shape is overlapped with the inside of the sprayer 66; the limiting ring 64 with a triangular cross section is mounted on the side wall of the joint 61, and the blanking ring 65 with an arc-shaped side wall is mounted at the bottom end of the sprinkler 66; the connecting rod 62 is installed inside the sprayer 66, the stirring rod 63 with a V-shaped side wall is installed at the bottom end of the connecting rod 62, and the stirring rod 63 is connected between the blanking ring 65 and the limiting ring 64 in a sliding manner; the compression mechanism 5 comprises a support rod 51, a limit rod 52, a first gear 53, fan blades 54, a fixed block 55, a second gear 56, a rotating rod 57, saw teeth 58 and a mounting rod 59, wherein the support rod 51 is mounted inside the stirring mechanism 2, the connecting rod 62 is obliquely mounted on the side wall of the support rod 51, the limit rod 52 is mounted on the side wall of the connecting rod 62, the top end of the limit rod 52 is rotatably connected with the first gear 53, and the first gear 53 is meshed with the second gear 56 and the saw teeth 58; the saw teeth 58 are installed on the inner side wall of the top end of the sprinkler 66 at equal intervals, and the second gear 56 is fixedly connected with the bottom end of the rotating rod 57; the top end of the supporting rod 51 is provided with the mounting rod 59, the side wall of the mounting rod 59 is rotatably connected with the rotating rod 57, and the side wall of the rotating rod 57 is fixedly connected with the fan blades 54; the side wall of the supporting rod 51 is equidistantly provided with the conical fixed blocks 55, and the hollow fixed blocks 55 are rotatably connected with the fan blades 54; and the feeding mechanism 3 is rotatably connected with the extrusion mechanism 4 in the feeding mechanism 3.
The stirring mechanism 2 comprises a stirring plate 21, a first drill rod 22 and a reinforcing rod 23, the top end of the drill bit 1 is fixedly connected with the first drill rod 22, the stirring plate 21 with the arc-shaped side wall is equidistantly arranged on the side wall of the first drill rod 22, a plurality of reinforcing rods 23 with the arc-shaped side wall are symmetrically arranged on the side wall of the first drill rod 22, the joint 61 and the sprayer 66 with the arc-shaped side wall are fixedly connected with the side wall of the first drill rod 22, the center of the sprayer 66 is aligned with the center of the reinforcing rod 23, the maximum diameter of the joint 61 is larger than the maximum diameter of the sprayer 66, in order to enable the reinforcing rod 23 to fix the first drill rod 22 together, the first drill rod 22, the reinforcing rod 23, the sprayer 66 and the joint 61 rotate synchronously, so that curing agent is sprayed out from a gap between the joint 61 and the limiting ring 64, with the rotation of the stirring plate 21, the curing agent, sand and soil are uniformly mixed and solidified, and then the soft soil is hardened.
The pressing mechanism 4 comprises a first blade 41, a fixed rod 42, a second blade 43 and a second drill rod 44, the top end of the first drill rod 22 is fixedly connected with the second drill rod 44, and the side wall of the second drill rod 44 is provided with the spiral second blade 43; the top end of the second drill rod 44 is fixedly connected with the fixing rod 42, the side wall of the fixing rod 42 is provided with the spiral first blade 41, the longest vertical distance between the edge of the first blade 41 and the circle center of the fixing rod 42 is smaller than the longest vertical distance between the edge of the second blade 43 and the circle center of the second drill rod 44, so that the fixing rod 42 and the first blade 41 rotate and continuously move up and down to prevent sand from being clamped in a drill hole, the first blade 41 pushes the inside of the sand feeding hopper 33 to continuously enter the drill hole, the second blade 43 continuously rotates to push the sand to continuously move down, and the gap between the second blade 43 and the drill hole is small, so that the second blade 43 pushes the sand to continuously move down and simultaneously blocks materials from moving up in the drill hole.
The longest vertical distance between the edge of the second blade 43 and the center of the second drill rod 44 is greater than the longest vertical distance between the edge of the stirring plate 21 and the center of the reinforcing rod 23, and the longest vertical distance between the edge of the second blade 43 and the center of the second drill rod 44 is smaller than the maximum radius of the drill bit 1, so that the drill bit 1 can conveniently crush stones in a soil layer and then extrude the stones outwards, the contact probability between the second blade 43 and the stirring plate 21 and the crushed stones is reduced, and the second blade 43 and the stirring plate 21 are prevented from being damaged.
The connecting mechanism 7 comprises a cylinder 71, a fixing ring 72 and an inlet pipe 73, the top end of the fixing rod 42 is installed on the fixing ring 72, the fixing ring 72 and the top end of the fixing rod 42 are rotatably connected to the inside of the cylinder 71, the top end of the cylinder 71 is installed on the inlet pipe 73, the inside of the cylinder 71 is fixedly connected to the supporting rod 51, the fixing rod 42 is installed on the inside of the first drill rod 22, the second drill rod 44 and the sprayer 66, the supporting rod 51 is fixed on the cylinder 71, the fixing rod 42 drives the fixing ring 72 to rotate inside the cylinder 71, the supporting rod 51 is fixed on the cylinder 71, the cylinder 71 and the supporting rod 51 are not synchronously rotated with the fixing rod 42, and a curing agent can continuously enter the inlet pipe 73 to the inside of the fixing rod 42.
The hollow bottom end of bracing piece 51 installs through-hole 8, through-hole 8 is located the inside of fixed block 55, just fixed block 55 is located the inside of first drilling rod 22, for the convenience of curing agent from conical the lateral wall of fixed block 55 slides, fixed block 55 is right flabellum 54 protects, flabellum 54 is in the inside of fixed block 55 rotates, flabellum 54 rotates and blows downwards, and the air passes through the bracing piece 51 lateral wall through-hole 8 gets into the inside of fixed block 55 avoids the curing agent to be inhaled the inside of fixed block 55.
The feeding mechanism 3 comprises a fixing plate 31, an anchor rod 32 and a feeding hopper 33, the first blade 41 is rotatably connected to the inside of the feeding hopper 33, the fixing plate 31 is symmetrically installed on the side wall of the feeding hopper 33, the anchor rod 32 is installed inside the fixing plate 31, the fixing plate 31 and the feeding hopper 33 are fixed on the ground by the anchor rod 32 for convenience of use, the drill bit 1, the first drill rod 22, the second drill rod 44 and the fixing rod 42 are guided into the soil layer, sand is poured into a drill hole through the feeding hopper 33 conveniently, and the sand moves downwards along a drilled pit.
The working principle of the water-stopping enclosure structure of the soft soil foundation building foundation pit provided by the invention is as follows: fixing the fixing plate 31 and the feed hopper 33 on the ground by using the anchor 32, and connecting the fixing rod 42 with a drilling machine so that the drill bit 1 is continuously screwed into the ground layer through the feed hopper 33; when the injector 66 reaches the injection depth, the feeding pipe 73 is connected with an air compressor, the air compressor rapidly injects the curing agent into the cylinder 71, the fixed rod 42, the second drill rod 44 and the first drill rod 22 through the feeding pipe 73, sand is continuously added into the feeding hopper 33, and the through hole controls the drilling machine, so that the drilling machine drives the fixed rod 42, the first drill rod 21 and the second rotating rod 44 to continuously rotate and simultaneously move up and down, and the spiral first blade 41 and the spiral second blade 43 to rotate to push the sand to continuously move down in the drilled hole. The curing agent rapidly enters the interior of the injector 66, the curing agent is contacted with the joint 61 in a circular truncated cone shape, part of the curing agent moves downwards along the side wall of the joint 61, the other part of the curing agent penetrates through the joint 61 and continues to move downwards in the interior of the first drill rod 22, the curing agent sliding downwards along the side wall of the joint 61 enters the soil from the zigzag movement between the blanking ring 65 and the limiting ring 64, one end of the blanking ring 65 and one end of the limiting ring 64 are overlapped, so that the channel between the blanking ring 65 and the limiting ring 64 is zigzag, the soil is prevented from entering the interior of the injector 66, the maximum diameter of the joint 61 is larger than that of the injector 66, the joint 51 blocks the soil from moving upwards, and the probability of the soil entering the interior of the injector 66 is reduced; and at this time the sprayer 66 and the joint 64 rotate continuously, the support rod 51 fixes the connecting rod 62 and the stirring rod 63, the connecting rod 62 and the stirring rod 63 do not rotate synchronously with the sprayer 66, the stirring rod 63 is positioned between the blanking ring 65 and the joint 61, and with the rotation of the blanking ring 65 and the joint 61, the stirring rod 63 pushes out impurities clamped between the blanking ring 65 and the joint 61, so that the blockage between the blanking ring 65 and the joint 61 is avoided. The sprinkler 66 drives the sawtooth 58 rotates, the sawtooth 58 pushes the first gear 53 rotates, the first gear 53 drives the second gear 56, the rotating rod 57 and the fan blade 54 rotate, the rotating rod 57 rotates the side wall of the installation rod 59, the installation rod 59 does the rotating rod 57 provides support, just the first gear 53 diameter is greater than the second gear 56 diameter, makes the second gear 56 rotational speed greater than the first gear 53 rotates, thereby increasing the rotating rod 57 and the fan blade 54 rotational speed make the fan blade 54 be in the air is blown out downwards fast in the inside of the fixed block 55, the curing agent is increased in the internal movement speed of the sprinkler 66, so that the curing agent is rapidly penetrated through the sprinkler 66 and the entering soil.
The fixing rod 42 and the first blade 41 rotate and simultaneously move up and down continuously to prevent sand from being clamped in a drilled hole, the first blade 41 pushes the inside of the sand feeding hopper 33 to enter the drilled hole continuously, the second blade 43 rotates continuously to push the sand to move downwards continuously to contact the stirring plate 21, the curing agent sprayed out of the side wall of the ejector 66 contacts with the sand firstly, is mixed with the sand and then contacts with soil, the moisture in the sand is little, the bonding of the curing agent is avoided, the sand continuously enters a soil layer, the soil quality is improved, and the stability and the firmness of a foundation are improved; and the clearance department between second blade 43 and the drilling is little, makes second blade 43 promotes the continuous downstream of sand and blocks the material upward movement in the drilling simultaneously, makes the mixture of curing agent, sand and earth constantly to spreading all around and get into the soil layer in, prevents that the mixture of curing agent, sand and earth from spouting in the drilling, increases the soft soil induration area to improve ground stagnant water effect.
Compared with the prior art, the water stop enclosure structure of the soft soil foundation building foundation pit has the following beneficial effects:
the invention provides a water-stopping enclosure structure of a soft soil foundation building foundation pit, when a curing agent continuously enters the extruding mechanism 4 and the stirring mechanism 2 through the connecting mechanism 7, the curing agent quickly enters the ejector 66, the curing agent is contacted with the circular truncated cone-shaped joint 61, part of the curing agent moves downwards along the side wall of the joint 61, the other part of the curing agent penetrates through the joint 61 and continues to move downwards in the stirring mechanism 2, the curing agent sliding downwards along the side wall of the joint 61 enters soil from the zigzag movement between the blanking ring 65 and the limiting ring 64, and one ends of the blanking ring 65 and the limiting ring 64 are mutually overlapped to prevent the soil from entering the ejector 66; at this time, the sprayer 66 and the joint 51 rotate continuously, the support rod 51 fixes the connecting rod 62 and the stirring rod 63, the connecting rod 62 and the stirring rod 63 do not rotate synchronously with the sprayer 66, the stirring rod 63 is positioned between the blanking ring 65 and the joint 61, and the stirring rod 63 with the V-shaped side wall pushes out impurities clamped between the blanking ring 65 and the joint 61 along with the rotation of the blanking ring 65 and the joint 61, so that the blockage between the blanking ring 65 and the joint 61 is avoided; the sprayer 66 drives the saw teeth 58 to rotate, the saw teeth 58 push the first gear 53 to rotate, the first gear 53 drives the second gear 56, the rotating rod 57 and the fan blades 54 to rotate, the diameter of the first gear 53 is larger than that of the second gear 56, so that the rotating speed of the second gear 56 is larger than that of the first gear 53 to rotate, the rotating speed of the fan blades 54 is increased, air is blown downwards quickly by the fan blades 54, the moving speed of the curing agent in the sprayer 66 is increased, the curing agent quickly penetrates through the sprayer 66 and enters soil, and the spraying efficiency is increased; when the curing agent is sprayed out to be in contact with the stirring mechanism 2, sand enters the feeding mechanism 3, the extrusion mechanism 4 pushes the sand to continuously move downwards to be in contact with the stirring mechanism 2, the curing agent sprayed out from the side wall of the sprayer 66 is firstly in contact with the sand, mixed and then in contact with soil, the curing agent is prevented from being adhered together, and the stability and firmness of the foundation are improved along with the sand entering the foundation; and the sand stops up drilling hole in the inside continuous downstream of drilling hole, makes the mixture of curing agent, sand and earth constantly to in the diffusion gets into the soil layer all around, prevents that the mixture of curing agent, sand and earth from spouting in drilling hole, increases the soft soil induration area to improve ground stagnant water effect.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a stagnant water envelope of soft soil foundation building foundation ditch which characterized in that includes:
a drill (1);
the bottom end of the stirring mechanism (2) is fixedly connected with the drill bit (1);
the bottom end of the extrusion mechanism (4) is provided with the stirring mechanism (2);
the connecting mechanism (7), the said connecting mechanism (7) is fixed to the top end of the said squeezing mechanism (4);
the spraying mechanism (6) comprises a joint (61), a connecting rod (62), a stirring rod (63), a limiting ring (64), a blanking ring (65) and a sprayer (66), the sprayer (66) and the joint (61) are symmetrically installed on the side wall of the stirring mechanism (2), and the top end of the circular truncated cone-shaped joint (61) is overlapped with the inside of the sprayer (66); the limiting ring (64) with a triangular cross section is mounted on the side wall of the joint (61), and the blanking ring (65) with an arc-shaped side wall is mounted at the bottom end of the sprinkler (66); the connecting rod (62) is arranged in the sprinkler (66), the stirring rod (63) with the V-shaped side wall is arranged at the bottom end of the connecting rod (62), and the stirring rod (63) is connected between the blanking ring (65) and the limiting ring (64) in a sliding way;
the compression mechanism (5) comprises a support rod (51), a limiting rod (52), a first gear (53), fan blades (54), a fixing block (55), a second gear (56), a rotating rod (57), sawteeth (58) and an installation rod (59), the support rod (51) is installed inside the stirring mechanism (2), the connecting rod (62) is installed on the side wall of the support rod (51) in an inclined mode, the limiting rod (52) is installed on the side wall of the connecting rod (62), the top end of the limiting rod (52) is rotatably connected with the first gear (53), and the first gear (53) is meshed with the second gear (56) and the sawteeth (58); the inner side wall of the top end of the sprayer (66) is equidistantly provided with the saw teeth (58), and the second gear (56) is fixedly connected with the bottom end of the rotating rod (57); the top end of the supporting rod (51) is provided with the mounting rod (59), the side wall of the mounting rod (59) is rotatably connected with the rotating rod (57), and the side wall of the rotating rod (57) is fixedly connected with the fan blades (54); conical fixing blocks (55) are equidistantly arranged on the side wall of the supporting rod (51), and the hollow fixing blocks (55) are rotatably connected with the fan blades (54);
the feeding mechanism (3), the inside of the feeding mechanism (3) is rotatably connected with the extrusion mechanism (4).
2. A water stop enclosure structure for a soft soil foundation building foundation pit according to claim 1, wherein the stirring mechanism (2) comprises a stirring plate (21), a first drill rod (22) and a reinforcing rod (23), the top end of the drill bit (1) is fixedly connected with the first drill rod (22), the stirring plate (21) with arc-shaped side walls is installed on the side walls of the first drill rod (22) at equal intervals, and the reinforcing rod (23) with arc-shaped side walls is symmetrically installed on the side walls of the first drill rod (22).
3. A water stopping enclosure for a soft soil foundation building pit according to claim 2, wherein the side wall of the first drill pipe (22) fixedly connects the joint (61) and the sprinkler (66) whose side wall is arc-shaped, the center of the sprinkler (66) is aligned with the center of the reinforcement bar (23), and the maximum diameter of the joint (61) is larger than the maximum diameter of the sprinkler (66).
4. A water-stopping envelope structure of a soft soil foundation building foundation pit according to claim 2, characterized in that the extrusion mechanism (4) comprises a first blade (41), a fixed rod (42), a second blade (43) and a second drill rod (44), the top end of the first drill rod (22) is fixedly connected with the second drill rod (44), and the side wall of the second drill rod (44) is provided with the spiral second blade (43); the top end of the second drill rod (44) is fixedly connected with the fixing rod (42), and the side wall of the fixing rod (42) is provided with the spiral first blade (41).
5. A water stop enclosure structure for a soft soil foundation building foundation pit according to claim 4, wherein the longest vertical distance between the edge of the first blade (41) and the center of the fixed rod (42) is smaller than the longest vertical distance between the edge of the second blade (43) and the center of the second drill rod (44); the longest vertical distance between the edge of the second blade (43) and the center of the second drill rod (44) is larger than the longest vertical distance between the edge of the stirring plate (21) and the center of the reinforcing rod (23), and the longest vertical distance between the edge of the second blade (43) and the center of the second drill rod (44) is smaller than the maximum radius of the drill bit (1).
6. A water stopping enclosure structure for a soft soil foundation building foundation pit according to claim 4, wherein the connecting mechanism (7) comprises a cylinder body (71), a fixing ring (72) and a feeding pipe (73), the fixing ring (72) is installed at the top end of the fixing rod (42), the fixing ring (72) and the top end of the fixing rod (42) are rotatably connected inside the cylinder body (71), and the feeding pipe (73) is installed at the top end of the cylinder body (71).
7. A stagnant water envelope of soft soil foundation construction foundation pit of claim 6 characterized in that, the inside fixed connection of barrel (71) the bracing piece (51), the bracing piece (51) is installed to the inside of dead lever (42), first drilling rod (22), second drilling rod (44) and sprinkler (66).
8. A water stopping enclosure for a soft soil foundation building foundation pit as claimed in claim 6, wherein a through hole (8) is installed at the bottom end of the hollow support rod (51), the through hole (8) is located inside the fixing block (55), and the fixing block (55) is located inside the first drill rod (22).
9. A stagnant water envelope of soft soil foundation building foundation ditch of claim 4 characterized in that, feed mechanism (3) includes fixed plate (31), stock (32) and feeder hopper (33), the inside of feeder hopper (33) is rotated and is connected first blade (41), the lateral wall symmetry installation of feeder hopper (33) the fixed plate (31), the inside installation of fixed plate (31) the stock (32).
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| JP2620043B2 (en) * | 1994-03-01 | 1997-06-11 | 成幸工業株式会社 | Ground improvement device and ground improvement method |
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