CN114718046A - Sleeve valve pipe grouting structure for deep soil filling layer and construction method thereof - Google Patents
Sleeve valve pipe grouting structure for deep soil filling layer and construction method thereof Download PDFInfo
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- CN114718046A CN114718046A CN202210433281.4A CN202210433281A CN114718046A CN 114718046 A CN114718046 A CN 114718046A CN 202210433281 A CN202210433281 A CN 202210433281A CN 114718046 A CN114718046 A CN 114718046A
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- 239000002689 soil Substances 0.000 title claims abstract description 38
- 238000011049 filling Methods 0.000 title claims abstract description 26
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000007569 slipcasting Methods 0.000 claims abstract description 18
- 239000011440 grout Substances 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 21
- 238000005553 drilling Methods 0.000 claims description 19
- 239000004570 mortar (masonry) Substances 0.000 claims description 13
- 239000004519 grease Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention relates to the technical field of filling layer grouting, in particular to a sleeve valve pipe grouting structure for a deep filling layer and a construction method thereof. Its connection leakproofness that mainly aims at the slip casting structure slip casting core pipe that current deep soil layer used remains to be improved, and the problem of the position of every section slip casting of being not convenient for fix a position, proposes following technical scheme: including slip casting pipe and slip casting core pipe, the slip casting pipe includes multistage slip casting connecting pipe, two the outer lane of slip casting connecting pipe junction is provided with slip casting adapter sleeve, the bottom one end of slip casting connecting pipe is connected with the shutoff head. The sleeve valve pipe grouting structure is novel and compact in structure, tight and new in connection among grouting core pipes, suitable for high-pressure grouting operation, free of leakage and seepage of slurry, clean in inner wall of the sleeve valve pipe, convenient to continuously construct, convenient for positioning grouting positions of the grouting pipes, capable of reducing operation time, more efficient and convenient to apply and mainly applied to the grouting structure of the sleeve valve pipe of the deep and thick filling layer.
Description
Technical Field
The invention relates to the technical field of filling layer grouting, in particular to a sleeve valve pipe grouting structure for a deep filling layer and a construction method thereof.
Background
The construction engineering is a method for improving the physical and mechanical properties of the solidified slurry by injecting the solidified slurry into cracks or pores of the rock-soil foundation by using a proper method and adopting a displacement, filling, extrusion and other modes; the construction surface is positioned on a backfill soil layer, the depth of the dynamic compaction is limited according to the requirement of the bearing capacity of a foundation, most of backfill soil is massive weathered rock, miscellaneous fill and construction waste, and the soil quality of the lower part of the backfill soil layer is loose according to the excavation condition of a site foundation, so that a soil body is difficult to form for consolidation in a short time in the deep backfill soil layer, and settlement is easy to generate. In order to accelerate the consolidation of the backfill soil layer and prevent the ground from generating uneven settlement, the deep backfill soil layer needs to be treated by compacting and grouting the foundation. Grouting construction is generally performed by using sleeve valve pipes.
The Chinese patent CN201908308U proposes a grouting sleeve valve tube, in the scheme, slurry can be limited in any section range of a grouting area for grouting through an upper grout stopping plug and a lower grout stopping plug, so that the aim of sectional grouting is fulfilled, and a grout stopping plug is formed by arranging a grout stopping rubber cup to play a role in stopping the slurry; however, in the actual grouting operation, the grouting core pipes are connected in sections, so that the tightness of the joints is particularly important, but the grouting core pipes are connected in a screw thread mode, so that the sealing effect is poor and needs to be improved, meanwhile, the positions of the existing grouting core pipes are not well determined, and the grouting fixed-point positions of all sections need to be obtained through manual repeated calculation; in view of the above, we propose a sleeve valve pipe grouting structure for a deep soil filling layer and a construction method thereof.
Disclosure of Invention
The invention aims to provide a grouting structure for a sleeve valve pipe of a deep and thick filling layer and a construction method thereof, aiming at the problems that the connection tightness of a grouting structure grouting core pipe used in the existing deep and thick filling layer in the background art needs to be improved and the grouting position of each section is inconvenient to position.
The technical scheme of the invention is as follows: a grouting structure for sleeve valve pipes of deep and thick filling layers comprises grouting pipes and grouting core pipes, wherein each grouting pipe comprises a plurality of sections of grouting connecting pipes, a grouting connecting sleeve is arranged on the outer ring of the joint of the two grouting connecting pipes, and one end of the bottom of each grouting connecting pipe is connected with a plugging head;
the grouting core pipe is arranged in the grouting pipe and comprises a plurality of sections of core pipe connecting pipes, a tightening mechanism is arranged at the joint between the two core pipe connecting pipes, the bottom of the grouting core pipe at the bottom end is provided with a grouting floral pipe, two ends of the grouting floral pipe are provided with grout stopping plugs, guide grooves are symmetrically formed in the inner wall of the grouting connecting pipes, and the bottom of the grout stopping plugs connected with the bottom end of the grouting floral pipe is connected with a rubber gasket;
the one end of core pipe connecting pipe is provided with the connecting thread pipe, the holding ring is established to the fixed cover in other end outer lane of core pipe connecting pipe, cover tight mechanism and include arc one and arc two, one side of arc one and arc two is rotated and is connected, install the connecting plate on the arc two, the spacing groove has been seted up on the arc one.
Preferably, one side that the arc is connected is provided with the fixed block of connection at an arc outer wall with the rotation of arc two, the bottom of fixed block is connected with the pilot pin, the constant head tank has been seted up at the top of holding ring, the pilot pin corresponds the installation with the constant head tank.
Preferably, the inner circle of the first arc-shaped plate and the inner circle of the second arc-shaped plate are connected with a sealing gasket, the inner wall of one side of the sealing gasket is connected with a sealing block, the connecting plate is rotatably connected with a bolt, the bolt is in adaptive connection with a limiting groove, and the maximum outer diameters of the first arc-shaped plate and the second arc-shaped plate are smaller than the maximum outer diameter of the positioning ring.
Preferably, the inner wall of one end of the core tube connecting tube, which is adjacent to the positioning ring, is provided with a thread groove, and the thread groove is matched with the connecting thread tube.
Preferably, the guide way is the arc wall, the both ends cross-section of rubber gasket is the arc surface, the rubber gasket is low elasticity rubber pad, only starch the stopper cover and establish the outer lane at slip casting floral tube, connecting thread pipe and slip casting floral tube's top inner wall rotate threaded connection.
Preferably, a grouting core pipe grout discharging port is formed in the grouting perforated pipe, a grouting grout discharging port is formed in the grouting connecting pipe, and a one-way valve is installed in the grouting grout discharging port.
Preferably, thread grooves are formed in outer rings of two ends of the grouting connecting pipe, connecting threads are formed in an inner ring of the grouting connecting sleeve, the grouting connecting sleeve is rotatably connected with the grouting connecting pipe, and the plugging head is rotatably connected with the grouting connecting pipe through the threads.
A construction method for a sleeve valve pipe grouting structure of a deep soil filling layer comprises the following steps:
s1, measurement and positioning of a drilling machine: positioning the drilling position according to the soil layer data measuring and calculating result, and positioning the drilling through a drilling machine;
s2, assembling a sleeve valve tube: the grouting pipe and the grouting core pipe are assembled according to the soil layer pouring depth, the length of the grouting pipe is larger than the drilling depth, and each section of core pipe connecting pipe in the grouting core pipe is hermetically connected through a tightening mechanism;
s3, installing a sleeve valve tube: after the sleeve valve pipe is pushed downwards corresponding to the drilling position in the S1, the grouting core pipe is inserted into the grouting pipe, and one end of the plugging head is installed in a mode of abutting against the inner wall of the bottom of the grouting pipe;
s4, mortar preparation: customizing a mortar proportion according to the soil layer requirement, mixing mortar through stirring equipment, performing operation through a grouting machine, rotating a grouting core pipe after grouting operation is completed, and collecting pipes in sections;
s5, monitoring and detecting: and detecting data such as soil layer pressure after sectional grouting, and performing next section grouting operation after the data is qualified.
Preferably, in the sleeve valve pipe assembled in S2, grease is applied to a gap between the grouting connection sleeves and an inner wall of each grouting connection sleeve near the grouting connection pipes to prevent mortar from solidifying and detaching, so as to reduce wear of the thread, and the rotating grouting core pipe in S4 is used for rotating and separating the rubber gasket from the guide groove to reduce rotating pressure.
Preferably, the step of segmenting and collecting the pipe in S4 includes the following steps: the tightly sleeving mechanism is disassembled, the tightly sleeving mechanism is disassembled from the outer ring of the core pipe connecting pipe, and the positioning bolt is separated from the positioning groove on the positioning ring; rotating one core tube connecting tube at the top enables the connecting thread tube to be rotated and separated from the inner wall of the core tube connecting tube at the bottom.
Compared with the prior art, the invention has the following beneficial technical effects:
1. according to the invention, after the core pipe connecting pipe is assembled through the rotation of the connecting threaded pipe through the tightening mechanism and the positioning ring in the multi-section core pipe connecting pipe in the grouting core pipe, the positioning bolt is correspondingly installed with the positioning groove formed in the top of the positioning ring, and meanwhile, the first arc-shaped plate and the second arc-shaped plate are rotated, so that the first arc-shaped plate and the second arc-shaped plate are tightly abutted against the outer wall of the joint of the core pipe connecting pipe through the sealing gasket on the inner wall, one end of the sealing block is attached to the inner wall of one end of the sealing gasket, and meanwhile, the bolt is correspondingly assembled with the limiting groove through the arrangement of the connecting plate and the bolt;
2. according to the invention, through the arrangement of the rubber gasket and the guide groove, when the next end grouting operation is carried out after a section of grouting operation is finished, the rubber gasket, the grouting floral tube and the grout stop plug at the bottom are integrally rotated by 90 degrees through the core tube connecting tube, the core tube connecting tube is pulled upwards, the rubber gasket is separated from the lower guide groove while the core tube connecting tube rotates, the rubber gasket is abutted against the inner wall of the grouting connecting tube, and because the maximum diameter of the rubber gasket is larger than that of the inner wall of the grouting connecting tube, the rubber gasket is slightly deformed during rotation, so that the grout stop plug at the bottommost is slightly deformed, the air pressure in the grouting connecting tube is reduced, the sealing property is low, the circulating gas is generated, and at the moment, the adsorption pressure between the grout stop plug and the inner wall of the grouting connecting tube is small, so that the grout stop plug can be more conveniently pulled along the inner wall of the grouting connecting tube, and the pulling force is reduced, the core pipe connecting pipe is convenient to pull and then reversely rotate by 90 degrees, so that the rubber gasket is reset, when the core pipe connecting pipe continuously pulls the rubber gasket to a position corresponding to an upper guide groove, the rubber gasket is correspondingly clamped and installed with the guide groove, and the pulling force is sensed to be clamped and then the pulling can be stopped, so that the positioning of the pouring position of the upper section of the soil filling layer is realized, and the operation is convenient and rapid;
3. the construction method of the grouting structure is simple and convenient, the sleeve valve pipes are assembled quickly and tightly, the connection utilization efficiency of the grouting core pipes is high, and the grouting efficiency of the deep filling layer is greatly improved;
4. in conclusion, the sleeve valve pipe is novel and compact in structure, the connection tightness between grouting core pipes is high, the sleeve valve pipe is suitable for high-pressure grouting operation, the situation that slurry leaks and seeps is avoided, the inner wall of the sleeve valve pipe is clean and tidy, continuous construction is convenient, the grouting position of the grouting pipe is convenient to position, the operation time is shortened, and the sleeve valve pipe is more efficient and convenient to use.
Drawings
FIG. 1 is a schematic structural view of a sleeve valve pipe grouting structure for a deep soil filling layer;
FIG. 2 is a schematic elevation view of the structure of FIG. 1;
FIG. 3 is a partial schematic view of the slip casting perforated pipe and rubber gasket of FIG. 2;
FIG. 4 is a schematic view of the structure of the guide groove of FIG. 2;
FIG. 5 is a partial structural view of the core tube-connecting pipe of FIG. 2;
FIG. 6 is a schematic view of the cinching mechanism of FIG. 2;
fig. 7 is a flow chart of a construction method for a sleeve valve pipe grouting structure of a deep soil filling layer.
Reference numerals: 1. grouting a connecting pipe; 2. grouting the connecting sleeve; 3. plugging a plug; 4. a one-way valve; 5. a core tube connecting tube; 6. a tightening mechanism; 61. a first arc-shaped plate; 62. a second arc-shaped plate; 63. a limiting groove; 64. a connecting plate; 65. a bolt; 66. a gasket; 67. a sealing block; 68. a fixed block; 69. positioning bolts; 7. a grout stopping plug; 8. grouting a floral tube; 9. a rubber gasket; 10. a guide groove; 11. connecting a threaded pipe; 12. a retaining ring.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-6, the sleeve valve pipe grouting structure for deep and thick fill layers provided by the invention comprises a grouting pipe and a grouting core pipe, wherein the grouting pipe comprises a plurality of sections of grouting connecting pipes 1, a grouting connecting sleeve 2 is arranged on the outer ring of the joint of the two grouting connecting pipes 1, and one end of the bottom of the grouting connecting pipe 1 is connected with a plugging head 3;
a grouting core pipe is arranged in the grouting pipe, the grouting core pipe comprises a plurality of sections of core pipe connecting pipes 5, a tightening mechanism 6 is arranged at the joint between the two core pipe connecting pipes 5, a grouting floral pipe 8 is arranged at the bottom of the grouting core pipe at the bottommost end, grout stopping plugs 7 are arranged at two ends of the grouting floral pipe 8, guide grooves 10 are symmetrically formed in the inner wall of the grouting connecting pipe 1, and the bottom of the grout stopping plug 7 connected with the bottom end of the grouting floral pipe 8 is connected with a rubber gasket 9;
one end of each core pipe connecting pipe 5 is provided with a connecting threaded pipe 11, the inner wall of one end of each core pipe connecting pipe 5, which is close to the corresponding positioning ring 12, is provided with a threaded groove, the threaded groove is matched with the corresponding connecting threaded pipe 11 for installation, the connecting threaded pipe 11 and the threaded groove are arranged for rotatably installing the two adjacent core pipe connecting pipes 5, the positioning ring 12 is fixedly sleeved on the outer ring of the other end of each core pipe connecting pipe 5, the maximum outer diameters of the first arc plate 61 and the second arc plate 62 are smaller than the maximum outer diameter of the positioning ring 12, the tightly sleeved mechanism 6 comprises the first arc plate 61 and the second arc plate 62, a sealing gasket 66 is connected to the inner rings of the first arc plate 61 and the second arc plate 62, a sealing block 67 is connected to the inner wall of one side of the sealing gasket 66, the sealing block 67 is connected with the inner walls of the first arc plate 61 and the second arc plate 62 in an adhesive manner, one side of the first arc plate 61 and the second arc plate 62 are rotatably connected, and a connecting plate 64 is installed on the second arc plate 62, the limiting groove 63 has been seted up on arc 61, bolt 65 rotates and installs on connecting plate 64, bolt 65 and limiting groove 63 adapter connection, limiting groove 63 has a plurality ofly, and the movement track when rotating along connecting plate 64 sets up, one side that arc 61 and arc two 62 rotate to be connected is provided with the fixed block 68 of connection at arc 61 outer wall, the bottom of fixed block 68 is connected with the pilot pin 69, the constant head tank has been seted up at the top of holding ring 12, the pilot pin 69 corresponds the installation with the constant head tank, the cross section of pilot pin 69 and constant head tank can be the square, rectangle or circular shape arbitrary one kind.
In this embodiment, one end of a grouting connection pipe 1 is rotatably assembled with one end inner wall of a grouting connection sleeve 2, one end of another grouting connection pipe 1 is rotatably assembled with the other end inner wall of the grouting connection sleeve 2, the plugging head 3 is rotatably assembled with the bottommost portion of the grouting connection pipe 1 to complete the assembly of the grouting pipe, after the assembly of the grouting pipe is completed, a grouting core pipe is assembled, one end of a core pipe connection pipe 5 at the bottommost portion is rotatably connected with the inner wall of one end at the top portion of a grouting flower pipe 8, and the other end of the core pipe connection pipe 5 is assembled with the other core pipe connection pipe 5, so that a connection threaded pipe 11 assembles two core pipe connection pipes 5, after the assembly of the two core pipe connection pipes 5, an arc plate one 61 and an arc plate two 62 in a tightening mechanism 6 are opened by an unfolding angle, and a positioning bolt 69 at the bottom of a fixing block 68 is correspondingly fastened with a positioning groove on a positioning ring 12, meanwhile, the first arc-shaped plate 61 and the second arc-shaped plate 62 are rotated towards the close ends, so that the inner walls of the first arc-shaped plate 61 and the second arc-shaped plate 62 are tightly attached to the outer wall of the core pipe connecting pipe 5, the sealing performance of the connection between the first arc-shaped plate 61 and the second arc-shaped plate 62 and the outer wall of the core pipe connecting pipe 5 is improved through the sealing block 67 arranged on the inner wall of the sealing gasket 66, after the first arc-shaped plate 61 and the second arc-shaped plate 62 are rotated to the extreme position, the bolt 65 is rotated to be connected with a limiting groove 63, the assembly and installation of the set of fastening mechanism 6 and the outer ring of the core pipe connecting pipe 5 can be completed, a plurality of core pipe connecting pipes 5 are sequentially connected until the length requirement is met, in the grouting operation, the rubber gasket 9 and the guide groove 10 are correspondingly installed, the grout stop plugs 7 sleeved at two ends of the grouting floral pipe 8 tightly attach the inner walls of the grouting connecting pipe 1, the one-way valve 4 is opened through the grouting pressure when the core pipe connecting pipe 5 conveys mortar, for the grouting operation of a deep soil layer, the grout stop plug 7 prevents grout from seeping into the grouting connecting pipe 1.
Example two
As shown in fig. 1-6, compared with the first embodiment, the grouting structure for a sleeve valve pipe of a deep fill layer provided by the invention further comprises a grouting pipe and a grouting core pipe, wherein the grouting pipe comprises a plurality of sections of grouting connecting pipes 1, a grouting discharge port is formed in each grouting connecting pipe 1, a one-way valve 4 is installed in each grouting discharge port, a grouting connecting sleeve 2 is arranged on the outer ring of the joint of the two grouting connecting pipes 1, a plugging head 3 is connected to one end of the bottom of each grouting connecting pipe 1, thread grooves are formed in the outer rings of the two ends of each grouting connecting pipe 1, a connecting thread is arranged on the inner ring of each grouting connecting sleeve 2, each grouting connecting sleeve 2 is rotatably connected with each grouting connecting pipe 1, the plugging head 3 is rotatably connected with each grouting connecting pipe 1 through threads, the grouting connecting pipes 2 are assembled and connected, and the sharp corners of the plugging heads 3 are convenient for the corresponding installation of the grouting pipes and drilled holes;
a grouting core pipe is arranged in the grouting pipe, the grouting core pipe comprises a plurality of sections of core pipe connecting pipes 5, a tightening mechanism 6 is arranged at the joint between the two core pipe connecting pipes 5, a grouting floral pipe 8 is arranged at the bottom of the grouting core pipe at the bottommost end, a grouting core pipe grout discharging port is formed in the grouting floral pipe 8, grout stopping plugs 7 are arranged at the two ends of the grouting floral pipe 8, the grout stopping plugs 7 are sleeved on the outer ring of the grouting floral pipe 8, guide grooves 10 are symmetrically formed in the inner wall of the grouting connecting pipe 1, the guide grooves 10 are arc-shaped grooves, rubber gaskets 9 are connected to the bottoms of the grout stopping plugs 7 connected to the bottom end of the grouting floral pipe 8, the sections of the two ends of each rubber gasket 9 are arc surfaces, each rubber gasket 9 is a low-elasticity rubber gasket, the cross section of each guide groove 10 is crescent, and the two sides of each rubber gasket 9 are in fit connection with the arc surfaces and the guide grooves 10;
the one end of core pipe connecting pipe 5 is provided with connecting thread pipe 11, connecting thread pipe 11 rotates threaded connection with slip casting floral tube 8's top inner wall, and the fixed cover in other end outer lane of core pipe connecting pipe 5 is established and is installed holding ring 12, and the tight mechanism 6 of cover includes arc one 61 and two 62, and one side of arc one 61 and two 62 is rotated and is connected, installs connecting plate 64 on two 62 of arcs, has seted up the spacing groove 63 on the arc one 61.
In this embodiment, the rubber gasket 9, the grouting floral tube 8 and the grout stop plug 7 at the bottom are integrally rotated by 90 degrees through the core tube connecting tube 5, the core tube connecting tube 5 is pulled upwards, the rubber gasket 9 is separated from the guide groove 10 below while the core tube connecting tube 5 is rotated, at the moment, the rubber gasket 9 is abutted against the inner wall of the grouting connecting tube 1, because the maximum diameter of the rubber gasket 9 is greater than the maximum diameter of the inner wall of the grouting connecting tube 1, the rubber gasket 9 can be slightly deformed during rotation, the grout stop plug 7 at the bottom is slightly deformed, the air pressure in the grouting connecting tube 1 is changed, the sealing performance is low, the adsorption pressure between the grout stop plug 7 and the inner wall of the grouting connecting tube 1 is low, so that the grout stop plug 7 can be more conveniently pulled along the inner wall of the grouting connecting tube 1, the phenomenon that the grout stop plug 7 is pulled by more force due to over-tight adsorption is avoided, the core tube connecting tube 5 is reversely rotated by 90 degrees after being pulled, and the core tube is connected with the grouting connecting tube 1, and the core tube is connected with the grouting connecting tube 1, the grouting device, and the grouting device, the grouting device is convenient for the grouting device, and the device is convenient for the device is used for the device, make rubber gasket 9 reset, after core pipe connecting pipe 5 lasted rubber gasket 9 pulling to the 10 positions of a guide way of top correspond, rubber gasket 9 obtains the release with the limiting pressure of 1 inner walls of slip casting connecting pipe, and rubber gasket 9 corresponds with guide way 10 and blocks the installation, and the pulling power is felt and can be stopped the pulling after the card is gone up, realizes the location to the position of pouring of the last section filled layer.
EXAMPLE III
As shown in fig. 1 to 7, compared with the first embodiment or the second embodiment, the construction method for the sleeve valve grouting structure of the deep soil filling layer provided by the present invention further includes the following steps:
s1, measurement and positioning of a drilling machine: positioning the drilling position according to the soil layer data measuring and calculating result, and positioning the drilling through a drilling machine;
s2, assembling a sleeve valve tube: the grouting pipe and the grouting core pipe are assembled according to the soil layer pouring depth, the length of the grouting pipe is larger than the drilling depth, each section of core pipe connecting pipe 5 in the grouting core pipe is connected in a sealing mode through a tightening mechanism 6, the grouting connecting sleeve 2 is close to the gap between the grouting connecting pipes 1, and the inner wall of the grouting connecting sleeve 2 is coated with grease for preventing mortar from being solidified and detached, abrasion of thread teeth is reduced, the rotating grouting core pipe in S4 is used for rotating and separating the rubber gasket 9 from the guide groove 10, and rotating pressure is reduced;
s3, installing a sleeve valve tube: after the sleeve valve pipe and the drilling hole in the S1 are correspondingly pushed downwards and mounted, the grouting core pipe is inserted into the grouting pipe, the sleeve valve pipe is the grouting pipe, the grouting pipe is 20 cm higher than the drilling hole, and one end of the plugging head 3 is installed in a mode of abutting against the inner wall of the bottom of the grouting pipe;
s4, mortar preparation: the mortar proportion is customized according to the soil layer demand, mortar is mixed through stirring equipment, the grouting core pipe is rotated after grouting operation is completed through operation of a grouting machine, and the pipe is collected in sections, wherein the steps of collecting the pipe in sections are as follows: the tightly sleeving mechanism 6 is disassembled, the tightly sleeving mechanism 6 is opened and disassembled from the outer ring of the core pipe connecting pipe 5, and the positioning bolt 69 is separated from the positioning groove on the positioning ring 12; rotating one core tube connecting tube 5 at the top to make the connecting thread tube 11 rotate and separate from the inner wall of the core tube connecting tube 5 at the bottom;
s5, monitoring and detecting: and detecting data such as soil layer pressure after sectional grouting, and performing next section grouting operation after the data is qualified.
The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.
Claims (10)
1. The utility model provides a be used for deep soil filling layer sleeve valve pipe slip casting structure, includes slip casting pipe and slip casting core pipe, its characterized in that: the grouting pipe comprises a plurality of sections of grouting connecting pipes (1), a grouting connecting sleeve (2) is arranged on the outer ring of the joint of the two grouting connecting pipes (1), and one end of the bottom of each grouting connecting pipe (1) is connected with a plugging head (3);
a grouting core pipe is arranged in the grouting pipe, the grouting core pipe comprises a plurality of sections of core pipe connecting pipes (5), a tightening mechanism (6) is arranged at the joint between the two core pipe connecting pipes (5), a grouting floral pipe (8) is arranged at the bottom of the grouting core pipe at the bottommost end, grout stopping plugs (7) are arranged at two ends of the grouting floral pipe (8), guide grooves (10) are symmetrically formed in the inner wall of the grouting connecting pipe (1), and rubber gaskets (9) are connected to the bottoms of the grout stopping plugs (7) connected to the bottom end of the grouting floral pipe (8);
the one end of core pipe connecting pipe (5) is provided with connecting thread pipe (11), the other end outer lane fixed cover of core pipe connecting pipe (5) is established and is installed holding ring (12), cover tight mechanism (6) and include arc (61) and arc two (62), one side of arc (61) and arc two (62) is rotated and is connected, install connecting plate (64) on arc two (62), spacing groove (63) have been seted up on arc (61).
2. The sleeve valve pipe grouting structure for the deep soil filling layer according to claim 1, wherein a fixing block (68) connected to the outer wall of the first arc-shaped plate (61) is arranged on one side of the first arc-shaped plate (61) and the second arc-shaped plate (62) in a rotating connection mode, a positioning bolt (69) is connected to the bottom of the fixing block (68), a positioning groove is formed in the top of the positioning ring (12), and the positioning bolt (69) is installed corresponding to the positioning groove.
3. The grouting structure for the sleeve valve pipe of the deep soil filling layer according to claim 2, wherein the inner rings of the first arc-shaped plate (61) and the second arc-shaped plate (62) are connected with a sealing gasket (66), the inner wall of one side of the sealing gasket (66) is connected with a sealing block (67), the connecting plate (64) is rotatably connected with a bolt (65), the bolt (65) is in adaptive connection with the limiting groove (63), and the maximum outer diameters of the first arc-shaped plate (61) and the second arc-shaped plate (62) are smaller than that of the positioning ring (12).
4. The sleeve valve pipe grouting structure for the deep soil filling according to claim 1, wherein the inner wall of one end of the core pipe connecting pipe (5) adjacent to the positioning ring (12) is provided with a thread groove which is fittingly installed with the connecting thread pipe (11).
5. The sleeve valve pipe grouting structure for the deep and thick soil filling layer according to claim 1, wherein the guide groove (10) is an arc-shaped groove, the cross sections of two ends of the rubber gasket (9) are arc surfaces, the rubber gasket (9) is a low-elasticity rubber pad, the grout stop plug (7) is sleeved on the outer ring of the grouting perforated pipe (8), and the connecting threaded pipe (11) is in rotary threaded connection with the inner wall of the top of the grouting perforated pipe (8).
6. The sleeve valve pipe grouting structure for the deep and thick filling layer according to claim 5, wherein a grouting core pipe grout outlet is formed in the grouting perforated pipe (8), a grouting grout outlet is formed in the grouting connecting pipe (1), and a one-way valve (4) is installed in the grouting grout outlet.
7. The casing valve pipe grouting structure for the deep and thick soil filling layer according to claim 1, wherein thread grooves are formed in outer rings of two ends of the grouting connecting pipe (1), connecting threads are formed in inner rings of the grouting connecting sleeve (2), the grouting connecting sleeve (2) is rotatably connected with the grouting connecting pipe (1), and the plugging head (3) is rotatably connected with the grouting connecting pipe (1) through threads.
8. A construction method for a sleeve valve pipe grouting structure of a deep fill according to any one of claims 1 to 7, characterized by comprising the following steps:
s1, measurement and positioning of a drilling machine: positioning the drilling position according to the soil layer data measuring and calculating result, and positioning the drilling through a drilling machine;
s2, assembling a sleeve valve tube: the grouting pipe and the grouting core pipe are assembled according to the soil layer pouring depth, the length of the grouting pipe is larger than the drilling depth, and each section of core pipe connecting pipe (5) in the grouting core pipe is hermetically connected through a tightening mechanism (6);
s3, installing a sleeve valve tube: after the sleeve valve pipe and the drilling position in the S1 are correspondingly pushed downwards and mounted, the grouting core pipe is inserted into the grouting pipe, and one end of the plugging head (3) is installed in a mode of abutting against the inner wall of the bottom of the grouting pipe;
s4, mortar preparation: customizing a mortar proportion according to the soil layer requirement, mixing mortar through stirring equipment, performing operation through a grouting machine, rotating a grouting core pipe after grouting operation is completed, and collecting pipes in sections;
s5, monitoring and detecting: and detecting data such as soil layer pressure after sectional grouting, and performing next section grouting operation after the data is qualified.
9. The construction method for the sleeve valve pipe grouting structure for the deep soil filling layer according to claim 8, wherein in the sleeve valve pipe assembled in the S2 manner, grease is coated on the grouting connection sleeve (2) close to the gap between the grouting connection pipes (1) and on the inner wall of the grouting connection sleeve (2) for preventing mortar from being solidified and detached constantly and reducing the abrasion of thread teeth, and the rotating grouting core pipe in the S4 manner is used for rotating and separating the rubber gasket (9) from the guide groove (10) and reducing the rotating pressure.
10. The construction method for the sleeve valve grouting structure of the deep fill according to claim 8, wherein the step of withdrawing the pipe in the S4 section by section comprises the following steps: the tight mechanism (6) of the cover of disassembling, open the tight mechanism (6) of the cover from the outer lane of the connecting pipe of the core tube (5) and dismantle, disengage the locating pin (69) from locating slot on the set collar (12); rotating one core tube connecting tube (5) at the top makes the connecting thread tube (11) rotate and separate from the inner wall of the core tube connecting tube (5) at the bottom.
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| CN202210433281.4A CN114718046B (en) | 2022-04-24 | 2022-04-24 | Sleeve valve pipe grouting structure for deep filling layer and construction method of sleeve valve pipe grouting structure |
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| CN114718046B (en) | 2023-10-27 |
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