CN112281851A - Rotary spraying anchor device for inner wall of vertical pile hole - Google Patents
Rotary spraying anchor device for inner wall of vertical pile hole Download PDFInfo
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- CN112281851A CN112281851A CN202011064616.7A CN202011064616A CN112281851A CN 112281851 A CN112281851 A CN 112281851A CN 202011064616 A CN202011064616 A CN 202011064616A CN 112281851 A CN112281851 A CN 112281851A
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- storage tank
- grouting
- bearing
- branch pipes
- slurry storage
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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
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a rotary anchor spraying device for the inner wall of a vertical pile hole, which comprises a grouting main pipe (1), grouting branch pipes (2), a bearing (3) and a slurry storage tank (4); the end part of the grouting hose is connected with one end of the bearing, and the bearing can rotate relative to the grouting main pipe; the other end of the bearing is fixedly connected with the slurry storage tank, so that the slurry storage tank and the bearing can synchronously rotate, and the slurry storage tank is communicated below the end part of the main grouting pipe through the bearing; the plurality of grouting branch pipes are arranged on the grout storage tank at intervals and communicated with the grout storage tank, the plurality of grouting branch pipes are obliquely arranged around the grout storage tank, and the inclination directions of the plurality of grouting branch pipes are consistent. The invention forms the spray anchor pressure in the concrete slurry spraying process through the plurality of equal and oblique spray branch pipes, thereby driving the grouting branch pipes, the bearings and the slurry storage tank to synchronously rotate, ensuring the uniform spray anchor of the inner wall of the hole by uniformly controlling the descending speed, and ensuring the spray anchor operation of the inner wall of the pile hole to be more efficient and convenient without external force driving rotation.
Description
Technical Field
The invention relates to pile hole construction equipment, in particular to a rotary anchor spraying device for an inner wall of a vertical pile hole.
Background
Before the earth excavation stage, arranging a rotary excavating support pile is one of common processes; in the raft construction process, the construction engineering pile is also one of the common procedures. Due to the fact that geological conditions of certain construction sites are poor, holes of the formed pile body are prone to collapse, inner wall anchor spraying needs to be conducted on the pile holes, and the holes are prevented from collapsing. Traditional inner wall spouts anchor device is fixed spout, need rotate the spray tube by oneself in spouting the anchor in-process and spout the anchor cover in order to reach the inner wall, owing to be manual operation and downthehole dim can't judge whether spout the anchor spout more with spout less, lead to spouting the anchor inequality.
Disclosure of Invention
The invention aims to provide a rotary shotcrete device for the inner wall of a vertical pile hole, wherein shotcrete pressure is formed in the concrete slurry spraying process through a plurality of equal and oblique shotcrete branch pipes, so that a grouting branch pipe, a bearing and a slurry storage tank are driven to synchronously rotate, and uniform shotcrete of the inner wall of the hole is ensured.
The invention is realized by the following steps:
a rotary anchor spraying device for the inner wall of a vertical pile hole comprises a grouting main pipe, grouting branch pipes, bearings and a slurry storage tank; the end part of the grouting hose is connected with one end of the bearing, and the bearing can rotate relative to the grouting main pipe; the other end of the bearing is fixedly connected with the slurry storage tank, so that the slurry storage tank and the bearing can synchronously rotate, and the slurry storage tank is communicated below the end part of the main grouting pipe through the bearing; the plurality of grouting branch pipes are arranged on the grout storage tank at intervals and communicated with the grout storage tank, the plurality of grouting branch pipes are obliquely arranged around the grout storage tank, and the inclination directions of the plurality of grouting branch pipes are consistent.
The grouting branch pipes are all connected with the slurry storage tank in a tangent mode.
The grouting branch pipes are located in the same plane, and included angles between any two adjacent grouting branch pipes are equal.
The diameter of the main grouting pipe is smaller than that of the bearing, and the diameter of the bearing is smaller than that of the slurry storage tank.
The grouting main pipe, the bearing and the slurry storage tank are coaxially arranged.
The grouting branch pipe, the bearing and the slurry storage tank are made of hard rigid materials.
According to the invention, the anchor spraying pressure is formed in the concrete slurry spraying process through the plurality of equal and oblique grouting branch pipes, so that the grouting branch pipes, the bearings and the slurry storage tank are driven to synchronously rotate, uniform anchor spraying on the inner wall of the hole can be ensured only by uniformly controlling the descending speed, external force is not required to drive the rotation, and the anchor spraying operation on the inner wall of the pile hole is more efficient and convenient; the invention has the advantages of simple structure, convenient manufacture, low cost and the like, and is particularly suitable for the construction of the vertical pile hole with poor soil condition and easy hole collapse.
Drawings
FIG. 1 is a front view of the vertical pile hole inner wall rotating shotcrete device of the present invention;
FIG. 2 is a bottom view of the rotary shotcrete device for the inner wall of a vertical pile hole according to the present invention;
fig. 3 is a plan view of the vertical pile hole inner wall rotating shotcrete device of the present invention.
In the figure, 1 grouting hose, 2 grouting branch pipes, 3 bearings and 4 slurry storage tanks are arranged.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1 to 3, a rotary anchor spraying device for the inner wall of a vertical pile hole comprises a main grouting pipe 1, a branch grouting pipe 2, a bearing 3 and a slurry storage tank 4; the end part of the grouting hose 1 is connected with one end of a bearing 3, and the bearing 3 can rotate relative to the grouting main pipe 1; the other end of the bearing 3 is fixedly connected with the slurry storage tank 4, so that the slurry storage tank 4 and the bearing 3 can synchronously rotate, and the slurry storage tank 4 is communicated below the end part of the main grouting pipe 1 through the bearing 3; the plurality of grouting branch pipes 2 are respectively arranged on the grout storage tank 4 at intervals and communicated with the grout storage tank 4, the plurality of grouting branch pipes 2 are obliquely arranged around the grout storage tank 4, and the plurality of grouting branch pipes 2 are consistent in inclination direction, namely, are all arranged along the clockwise direction or the anticlockwise direction, so that the concrete slurry can generate oblique anchor spraying pressure when sprayed out and can react on the rotation of the bearing 3.
Preferably, a plurality of slip casting branch pipes 2 all with the tangent connection of holding up tank 4, can form great and more stable anchor pressure that spouts to slip casting branch pipe 2 when making the shotcrete thick liquids, can form even concrete film simultaneously on the inner wall in construction hole, and structural stability is high, easily preparation.
The grouting branch pipes 2 are located in the same plane, included angles between any two adjacent grouting branch pipes 2 are equal, and the grouting branch pipes 2 which are circumferentially arranged in equal intervals can ensure that the anchor spraying pressure of each grouting branch pipe 2 is equal when concrete slurry is sprayed, so that the grouting branch pipes 2, the bearings 3 and the slurry storage tank 4 can stably, uniformly and smoothly rotate, and the purpose of uniform anchor spraying is achieved.
The diameter of the main grouting pipe 1 is smaller than that of the bearing 3, the diameter of the bearing 3 is smaller than that of the slurry storage tank 4, and the length of the grouting branch pipe 2 is determined by the diameter of the construction hole, so that the grouting branch pipe 2 and the inner wall of the construction hole can keep a proper anchor spraying distance.
The grouting main pipe 1, the bearing 3 and the slurry storage tank 4 are coaxially arranged, so that the spraying uniformity of concrete slurry and the rotation smoothness of the bearing 3 are ensured.
The grouting branch pipe 2, the bearing 3 and the slurry storage tank 4 are made of hard rigid materials, so that the stability of the integral structure and the rotation is ensured, and the reliability and the safety of concrete slurry storage are ensured.
Example 1:
the main grouting pipe 1 adopts a grouting hose in the prior art, and the diameter of the main grouting pipe is 15 cm.
The bearing 3 adopts the light ceramic bearing of prior art, and the diameter is 18cm, and the height is 5cm, and the upper end inner wall of bearing 3 adopts the sealing member to be connected with the lower extreme accordant of slip casting main pipe 1, ensures the connection leakproofness between bearing 3 and the slip casting main pipe 1. The lower extreme outer wall of bearing 3 adopts fixed seal circle and the upper end inner wall accordant connection of mud storage tank 4, ensures the connection leakproofness between bearing 3 and the mud storage tank 4, and bearing 3 can rotate with mud storage tank 4 synchronous when the slip casting is responsible for 1 and does not rotate.
The slurry storage tank 4 can be made of round light rigid materials, the diameter is 20cm, the height is 20cm, the capacity is large, more concrete slurry can be stored, effective supply of the concrete slurry during anchor spraying is guaranteed, and the concrete slurry is uniformly distributed to each grouting branch pipe 2.
Three grouting branch pipes 2 equally divided by 60 degrees are arranged on the outer wall of the slurry storage tank 4, and the three grouting branch pipes 2 are positioned in the same horizontal plane and are arranged in a tangent manner with the slurry storage tank 4; the grouting branch pipe 2 can be made of light rigid materials, the diameter is 15cm, and the length is determined by the aperture of the construction hole.
During the use, in putting three slip casting branch pipes 2, bearing 3 and mud storage tank 4 into the construction hole through the slip casting is responsible for 1 coaxial lowering, the operation height department that the plane that makes three slip casting branch pipes 2 place required shotcrete. The shotcrete control equipment in the prior art injects concrete slurry into the main grouting pipe 1 at a certain pressure, so that the concrete slurry enters the slurry storage tank 4 through the bearing 3 and is sprayed out through the three grouting branch pipes 2. Because the tangential setting of three slip casting branch pipes 2, can form the anchor spraying pressure to three slip casting branch pipes 2 when spraying concrete slurry, thrust bearing 3, stock tank 4 and three slip casting branch pipes 2 are the main pipe 1 synchronous rotation of being responsible for of slip casting relatively under the reaction of anchor spraying pressure, cooperate the synchronous promotion of the main pipe 1 of slip casting when rotatory injection concrete slurry to it is even to ensure the whole anchor spraying on the construction hole inner wall. Because the three grouting branch pipes 2 are arranged tangentially, the sprayed concrete slurry and the inner wall of the construction hole form a certain included angle, the concrete film on the inner wall of the construction hole is uniform, and the uniformity of the spray anchor is further improved.
When the anchor is sprayed, a cover plate can be added on the top of the construction hole, so that the environmental pollution caused by dust emission, splashing and the like is reduced.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a rotatory anchor device that spouts of perpendicular stake downthehole wall which characterized by: comprises a grouting main pipe (1), a grouting branch pipe (2), a bearing (3) and a slurry storage tank (4); the end part of the grouting hose (1) is connected with one end of the bearing (3), and the bearing (3) can rotate relative to the grouting main pipe (1); the other end of the bearing (3) is fixedly connected with the slurry storage tank (4), so that the slurry storage tank (4) can synchronously rotate with the bearing (3), and the slurry storage tank (4) is communicated below the end part of the main grouting pipe (1) through the bearing (3); the plurality of grouting branch pipes (2) are respectively arranged on the grout storage tank (4) at intervals and communicated with the grout storage tank (4), the plurality of grouting branch pipes (2) are obliquely arranged around the grout storage tank (4), and the inclination directions of the plurality of grouting branch pipes (2) are consistent.
2. The vertical pile hole inner wall rotary shotcrete device of claim 1, wherein: the grouting branch pipes (2) are all connected with the grout storage tank (4) in a tangent mode.
3. The vertical pile hole inner wall rotary shotcrete device of claim 1 or 2, wherein: the grouting branch pipes (2) are located in the same plane, and included angles between any two adjacent grouting branch pipes (2) are equal.
4. The vertical pile hole inner wall rotary shotcrete device of claim 1, wherein: the diameter of the grouting main pipe (1) is smaller than that of the bearing (3), and the diameter of the bearing (3) is smaller than that of the slurry storage tank (4).
5. The vertical pile hole inner wall rotary shotcrete device of claim 1 or 4, wherein: the grouting main pipe (1), the bearing (3) and the slurry storage tank (4) are coaxially arranged.
6. The vertical pile hole inner wall rotary shotcrete device of claim 1, wherein: the grouting branch pipe (2), the bearing (3) and the slurry storage tank (4) are made of hard rigid materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011064616.7A CN112281851A (en) | 2020-09-30 | 2020-09-30 | Rotary spraying anchor device for inner wall of vertical pile hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011064616.7A CN112281851A (en) | 2020-09-30 | 2020-09-30 | Rotary spraying anchor device for inner wall of vertical pile hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112281851A true CN112281851A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011064616.7A Pending CN112281851A (en) | 2020-09-30 | 2020-09-30 | Rotary spraying anchor device for inner wall of vertical pile hole |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836204A (en) * | 2017-03-15 | 2017-06-13 | 中铁六局集团路桥建设有限公司 | The device and method of pouring pile bearing capacity under a kind of lifting Soft Soil |
| CN108457266A (en) * | 2018-06-08 | 2018-08-28 | 合肥学院 | A kind of side rear grouting of compresol pile device and method |
| CN208023559U (en) * | 2018-01-24 | 2018-10-30 | 中冶天工集团有限公司 | It is a kind of can slip casting long screw auger pressure deposited pile |
| CN111501726A (en) * | 2020-05-11 | 2020-08-07 | 太原理工大学 | Rotary spraying grouting foundation treatment device and method |
| CN211368723U (en) * | 2019-10-18 | 2020-08-28 | 南京工业职业技术学院 | Novel grouting pipe |
| US20200362527A1 (en) * | 2018-01-30 | 2020-11-19 | Shandong Bei Te Li Foundation Engineering Technology Co., Ltd | Jetting, expansion and extrusion combined pile, construction method thereof and spiral jetting, expansion and extrusion drilling rig used in method |
-
2020
- 2020-09-30 CN CN202011064616.7A patent/CN112281851A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836204A (en) * | 2017-03-15 | 2017-06-13 | 中铁六局集团路桥建设有限公司 | The device and method of pouring pile bearing capacity under a kind of lifting Soft Soil |
| CN208023559U (en) * | 2018-01-24 | 2018-10-30 | 中冶天工集团有限公司 | It is a kind of can slip casting long screw auger pressure deposited pile |
| US20200362527A1 (en) * | 2018-01-30 | 2020-11-19 | Shandong Bei Te Li Foundation Engineering Technology Co., Ltd | Jetting, expansion and extrusion combined pile, construction method thereof and spiral jetting, expansion and extrusion drilling rig used in method |
| CN108457266A (en) * | 2018-06-08 | 2018-08-28 | 合肥学院 | A kind of side rear grouting of compresol pile device and method |
| CN211368723U (en) * | 2019-10-18 | 2020-08-28 | 南京工业职业技术学院 | Novel grouting pipe |
| CN111501726A (en) * | 2020-05-11 | 2020-08-07 | 太原理工大学 | Rotary spraying grouting foundation treatment device and method |
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Application publication date: 20210129 |
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