CN211571665U - Fixing structure of concrete surface soil pressure cell - Google Patents
Fixing structure of concrete surface soil pressure cell Download PDFInfo
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- CN211571665U CN211571665U CN201922426251.7U CN201922426251U CN211571665U CN 211571665 U CN211571665 U CN 211571665U CN 201922426251 U CN201922426251 U CN 201922426251U CN 211571665 U CN211571665 U CN 211571665U
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- pressure cell
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Abstract
The utility model discloses a fixed knot of concrete surface soil pressure cell constructs, installs in the space between the reinforcing bar of concrete spare, including linking bridge and fixing base, linking bridge includes vertical pole, and vertical pole is fixed with the reinforcing bar overlap joint, and the fixing base includes the base, the steel protective equipment, blotter and tarpaulin, base and vertical pole fixed connection, is equipped with the wire of through wires hole in order to draw forth the soil pressure cell on the base, steel protective equipment one end and base fixed connection, other end opening in order to put into the soil pressure cell, and the blotter winding parcel live the soil pressure cell, and the tarpaulin wraps up the opening one end of steel protective equipment. With the vibrations impact that produces when putting into the steel protective equipment with the reduction when concreting in the blotter winding parcel for the soil pressure cell, reuse tarpaulin prevents that the concrete from getting into the steel protective equipment with the opening one end parcel of steel protective equipment in, can cut open the tarpaulin and take out the soil pressure cell after concrete casting accomplishes, the relocation installation, it is nimble convenient.
Description
Technical Field
The utility model relates to a soil pressure sensor's installation field, concretely relates to concrete surface soil pressure cell's fixed knot constructs.
Background
The soil pressure box is also called a soil pressure gauge, is a sensor for measuring soil pressure and is mainly used for measuring the pressure change of soil bodies at buried points in soft soil and filling soil; and the contact pressure of the soil body on the surfaces of a retaining wall, an anti-slide pile and the like can also be measured. The method is mainly used in the application fields of roadbeds, foundation pits, retaining walls, dams, tunnels, mines and the like. The earth pressure cell is generally divided into a vibrating wire sensor and a resistance-type sensor, wherein the resistance-type earth pressure cell can realize real-time data acquisition and is widely applied to continuous and synchronous data acquisition.
The earth pressure cell is generally buried on the surface of reinforced concrete, and the stress surface of the earth pressure cell is in contact with the earth layer to measure the stress change of the earth layer. In the concrete construction process of engineering, the burying of the soil pressure box can be involved in reinforced concrete prefabricated components (such as concrete pipelines, concrete pile foundations and the like) and reinforced concrete cast-in-place structures (slip form or formwork construction, formwork erecting and pouring of most buildings on construction sites and the like). In order to detect and master the soil layer stress change condition in the construction process and detect the stress state of the buried reinforced concrete prefabricated part and the cast-in-place structure, an effective method is to install a soil pressure box on the surface of the buried reinforced concrete prefabricated part and the cast-in-place structure to obtain the soil layer pressure so as to guide further construction or design of the prefabricated part and the like.
Because the reinforced concrete prefabricated part and the soil pressure box move relatively, the soil pressure box can detect the soil layer pressure and can move in the soil layer along with the reinforced concrete prefabricated part and other moving bodies without being damaged by collision, so that the stress surface of the soil pressure box is required to be strictly flush with the surface of the moving body.
The pre-embedding and fixing method of the soil pressure box in the prior art mainly comprises the following steps:
(1) the soil pressure cell is directly pre-installed in a reinforcement cage and then poured, but the reinforcement cage can deform in the hoisting and placing processes, the installation position of the soil pressure cell can also shift, impact vibration in the pouring process can also shift the soil pressure cell, and the installation and fixation of the soil pressure cell and the surface of a formed concrete piece are ensured to be level and have great difficulty.
(2) Weld the steel protective equipment that the pipe diameter slightly is greater than soil pressure cell diameter in tube coupling steel skeleton, put into the good steel protective equipment of welding with soil pressure cell again, install interior outer template at last, guarantee that the surface of pre-buried steel protective equipment is hugged closely with the internal surface of outer template. However, in the whole installation and pouring process, the embedded steel protective tool is not easy to completely cling to the inner surface of the outer template, the precision is poor after the construction, and in addition, the concrete pouring and vibrating construction easily damages the soil pressure cell, so that the soil pressure cell finally loses the working capacity.
(3) The soil pressure box is preset in the pipe wall with a large pipe diameter, and needs to be manually adjusted in the pipe, so that the mode is only suitable for the pipeline with the large pipe diameter, and the steel sleeve needs to be sealed.
The prior art has the problems that the soil pressure cell is easy to damage, the embedding precision is poor, the application range is small, the implementation is troublesome, the actual application effect of engineering is poor, the result obtained by testing is too different from the result obtained in the actual pipe jacking process, and the like, so that an embedding device is necessary to embed the soil pressure cell, and after the reinforced concrete prefabricated part is poured, the soil pressure cell can be positioned and installed again to ensure that the stress surface of the soil pressure cell is strictly parallel and level with the surface of a moving body.
In addition, the core mould vibration manufacturing process adopted by the dry and hard concrete is characterized in that the original loose structure of the dry and hard concrete injected into the mould is broken by utilizing the high-frequency vibration effect generated by host equipment, and a new compact structure is established. The core mould vibration manufacturing demoulding time is fast, the strength is high, and the size is accurate. However, because the high-frequency vibration effect vibration is needed to be compact in the manufacturing process, if the soil pressure cell and the steel protector have a gap, the collision between the embedded soil pressure cell and the steel protector is damaged, and even the working capacity is lost.
Finally, the prior art still lacks an embedded device to carry out pre-buried to the soil pressure cell, can carry out the relocation installation to the soil pressure cell.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art, the to-be-solved technical problem of the utility model is with soil pressure cell pre-buried in reinforced concrete spare, can take out soil pressure cell relocation installation after concrete spare is pour and is accomplished.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a fixed knot of concrete surface soil pressure cell constructs, installs in the space between the reinforcing bar of concrete spare, including linking bridge and fixing base, linking bridge includes vertical pole, vertical pole is fixed with the reinforcing bar overlap joint, the fixing base includes:
the base is fixedly connected with the vertical rod, and a threading hole is formed in the base to lead out a lead of the soil pressure cell;
one end of the steel protective tool is fixedly connected with the base, and the other end of the steel protective tool is provided with an opening for placing the soil pressure cell;
the buffer cushion is wound and wrapped on the soil pressure box; and
the waterproof cloth wraps one end of the opening of the steel protective tool.
Above-mentioned concrete surface soil pressure cell's fixed knot constructs, fix in the space between the reinforcing bar of concrete spare through linking bridge, draw forth the through wires hole on the base with the wire of soil pressure cell, put into the steel protective equipment with blotter winding parcel for the soil pressure cell in order to reduce the vibrations that produce when concreting, reuse tarpaulin prevents concrete entering steel protective equipment with the opening one end parcel of steel protective equipment in, can cut open the tarpaulin and take out the soil pressure cell after concrete spare is pour and is accomplished, the relocation installation, it is nimble convenient.
Further, the connecting support comprises a transverse rod, and the transverse rod is fixed with the vertical rod in an overlapping mode. The strength of the connecting bracket can be improved by arranging the transverse rod.
Further, one end of the vertical rod is bent to form a hook. The hook can facilitate the vertical rod to be hung on the steel bar so as to weld and fix the vertical rod and the steel bar together.
Further, the buffer pad is double faced adhesive tape. The double faced adhesive tape can be tightly wound on the soil pressure cell and is not easy to loosen and fall off.
Further, the fixing seat further comprises a strapping tape, and the strapping tape ties the waterproof cloth on the steel protector. The strapping tape can be used for binding the waterproof cloth on the steel protective tool and is not easy to loosen and fall off.
Further, the fixing seat further comprises a traction belt, and the traction belt is connected with the soil pressure box so as to pull the soil pressure box out of the steel protector. The traction belt is convenient to drag the soil pressure cell from the steel protective tool.
Further, the traction belt is arranged between the end face of the soil pressure box and the base, and two ends of the traction belt extend out of the opening end of the steel protective tool from a gap between the soil pressure box and the steel protective tool. The traction belt is directly placed at the bottom of the soil pressure box, and is simple and convenient.
Compared with the prior art, the beneficial effects of the utility model are that:
1. adopt the fixed knot of above-mentioned concrete surface soil pressure cell to construct, through blotter winding parcel soil pressure cell, put into the steel protective equipment again, the vibrations that produce when reducing concreting are strikeed.
2. The waterproof cloth is used for wrapping one end of the opening of the steel protective tool to prevent concrete from entering the steel protective tool, the waterproof cloth can be cut to take out the soil pressure cell after the concrete member is poured, the mounting is relocated, the mounting precision of the waterproof cloth is not controlled before the concrete member is poured, and the waterproof cloth is flexible and convenient.
3. The soil pressure cell is dragged out of the steel protective tool through the traction belt, and the soil pressure cell is convenient and practical.
4. Simple structure and wide applicability.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1 according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or structures must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention.
Referring to fig. 1 and 2, the fixing structure of the concrete surface soil pressure cell provided in this embodiment is installed in a gap between reinforcing bars 100 of a concrete member 200, and includes a connecting bracket 1 and a fixing base 2.
The connecting bracket 1 comprises a vertical rod 11, and the vertical rod 11 is fixed with the steel bar 100 in an overlapping manner. Specifically, one end of the vertical rod 11 is bent to form a hook. The hook can facilitate the vertical rod 11 to be hung on the steel bar 100 so as to weld and fix the vertical rod 11 and the steel bar 100 together. The connecting bracket 1 can also be provided with a transverse rod 12, and the transverse rod 12 is fixed with the vertical rod 11 in an overlapping manner. The provision of the transverse bar 12 improves the strength of the connecting bracket 1. In the embodiment, at least two vertical rods 11 and at least two transverse rods 12 are welded to form a shape like a Chinese character 'jing', two ends of each transverse rod 12 are respectively fixed on the two vertical rods 11, and one end of each vertical rod 11 is bent to form a hook. The hook can facilitate the vertical rod 11 to be hung on the steel bar 100 so as to weld and fix the vertical rod 11 and the steel bar 100 together. During specific implementation, the bent ends of all the vertical rods 11 are hung on the steel bars 100, the vertical rods 11 are arranged at intervals and are firmly welded with the steel bars 100, and then the transverse rods 12 are lapped on the vertical rods 11 at intervals and are firmly welded with the vertical rods 11.
The fixing seat 2 comprises a base 21, a steel protector 22, a cushion pad 23 and a waterproof cloth 24.
The base 21 is fixedly connected with the vertical rod 11, and the base 21 is provided with a threading hole 211 for leading out the lead 31 of the soil pressure cell 3. Specifically, the base 21 is a rectangular plate, and is overlapped on at least two vertical rods 11, and the base 21 and the transverse rod 12 are located on two sides of the vertical rods 11.
One end of the steel protector 22 is fixedly connected with the base 21, and the other end is opened to place the soil pressure cell 3. Specifically, the steel protector 22 is a cylinder with an inner diameter slightly larger than the soil pressure cell 3, one end of the steel protector 22 is welded and fixed on the base 21, and the wire 31 of the soil pressure cell 3 is provided with a reserved section in the steel protector 22 to reserve a certain length of the wire 31 after the soil pressure cell 3 is pulled out from the steel protector 22, so that the wire 31 cannot be pulled apart.
The buffer pad 23, the buffer pad 23 twines and wraps the soil pressure cell 3. Specifically, the cushion pad 23 is a double-sided adhesive tape, which can be tightly wound around the soil pressure cell 3 and is not easily loosened and removed. The double faced adhesive tape is wound on the soil pressure cell 3 and then placed in the steel protector 22, and a gap cannot be reserved between the soil pressure cell 3 and the steel protector 22. Because the method of prefabricating the dry and hard concrete by the vibration of the core mould has a large amount of vibration impact, if a gap exists between the soil pressure box 3 and the steel protector 22, the soil pressure box 3 and the steel protector 22 can be collided and damaged and even lose the working capacity, and the gap between the soil pressure box 3 and the steel protector 22 is filled with the double faced adhesive tape, so that the vibration impact on the soil pressure box 3 during the vibration of the core mould is reduced.
The tarp 24 wraps the open end of the steel armor 22. Preventing concrete from entering the steel armour 22 and also preventing water or other debris from entering the steel armour 22 and damaging the soil pressure cell 3. Specifically, the waterproof cloth 24 may be provided with a binding band 25, and the binding band 25 binds the waterproof cloth 24 to the steel protector 22 so as not to loosen and fall off easily.
The mounting base 2 can also be provided with a traction belt 26, and the traction belt 26 is connected with the soil pressure cell 3 so as to pull the soil pressure cell 3 out of the steel protector 22. The traction band 26 facilitates pulling the soil pressure cell 3 out of the steel protector 22, specifically, the traction band 26 is disposed between the end face of the soil pressure cell 3 and the base 21, and both ends of the traction band 26 extend out of the open end of the steel protector 22 from between the soil pressure cell 3 and the steel protector 22. The traction belt 26 is directly placed at the bottom of the soil pressure box 3, and is simple and convenient. In the illustrated embodiment, there are two pull straps 26, with the two pull straps 26 being disposed at the bottom of the steel armature 22 in a criss-cross pattern.
Referring to fig. 1 and 2, the fixing structure of the concrete surface soil pressure cell is used in the following steps:
(1) the steel protector 22 and the base 21 are welded firmly in advance;
(2) hanging the bent ends of the vertical rods 11 on the reinforcing steel bars 100 of the concrete part 200, arranging the vertical rods 11 at intervals and firmly welding the vertical rods 11 with the reinforcing steel bars 100, then lapping the transverse rods 12 on the vertical rods 11 at intervals and firmly welding the transverse rods with the vertical rods 11, and then welding and fixing the base 21 and the vertical rods 11;
(3) tearing off the protective layers on the two sides of the double-sided adhesive tape and tightly winding and wrapping the soil pressure cell 3;
(4) leading out the lead 31 of the soil pressure cell 3 from the threading hole 211 of the base 21, and reserving a section of length at the bottom of the steel protector 22;
(5) placing the traction band 26 at the bottom of the steel protector 22, and then placing the earth pressure cell 3 wrapped with double-sided tape inside the steel protector 22, the double-sided tape having to be wrapped thick enough to be packed inside the steel protector 22, wherein the end of the traction band 26 extends out of the open end of the steel protector 22;
(6) the open end of the steel protector 22 is wrapped with the waterproof cloth 24, and the waterproof cloth 24 is bound to the steel protector 22 with the binding band 25 so as not to loosen and fall off.
(7) Immediately demolding the external mold 300 at the opening end of the steel protector 22 after the whole concrete piece is poured;
(8) after the demolding is completed, the waterproof cloth 24 is cut open, and the soil pressure cell 3 is taken out of the steel protector 22 by pulling the traction belt 26;
(9) then the double faced adhesive tape is removed, mortar is filled in the steel protective tool 22, and then soil pressure is pressed into the mortar, so that the stress surface of the soil pressure cell 3 is flush with the surface of the concrete member 200, if the surfaces of the soil pressure cell 3 and the concrete member 200 are uneven, when the soil pressure cell 3 exceeds the surface of the concrete member 200, the soil pressure cell 3 is damaged when the concrete member moves, and when the soil pressure cell 3 is too much concave to the surface of the concrete member 200, accurate soil pressure cannot be measured.
In the prior art, the stress surface for installing and fixing the soil pressure box 3 is flush with the surface of the formed concrete part 200, so that certain difficulty exists, the steel reinforcement cage can deform in the hoisting and placing processes, and the installation position of the soil pressure box 3 can also shift. This scheme of adoption, tear out soil pressure cell 3 after pre-buried, reinstall (must be pre-buried, the inside of concrete spare can't be drawn forth to wire 31 otherwise), the precision is high, need not control the precision in advance, guarantees that soil pressure cell 3's stress surface flushes with concrete spare 200 surface mutually.
According to the fixing structure of the concrete surface soil pressure cell, the cushion pad 23 is wound and wrapped on the soil pressure cell 3, and then the concrete surface soil pressure cell is placed in the steel protector 22, so that the vibration impact generated when concrete is poured is reduced; the waterproof cloth 24 is used for wrapping one end of the opening of the steel protector 22 to prevent concrete from entering the steel protector 22, the waterproof cloth 24 can be cut to take out the soil pressure cell 3 after the concrete part is poured, the positioning and the installation are carried out again, the installation precision is not required to be controlled before the concrete is poured, and the steel protector is flexible and convenient; the soil pressure box 3 is dragged out of the steel protector 22 through the traction belt 26, so that the soil pressure box is convenient and practical; simple structure and wide applicability.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides a fixed knot of concrete surface soil pressure cell constructs, installs in the space between the reinforcing bar of concrete spare, a serial communication port, including linking bridge and fixing base, linking bridge includes vertical pole, vertical pole is fixed with the reinforcing bar overlap joint, the fixing base includes:
the base is fixedly connected with the vertical rod, and a threading hole is formed in the base to lead out a lead of the soil pressure cell;
one end of the steel protective tool is fixedly connected with the base, and the other end of the steel protective tool is provided with an opening for placing the soil pressure cell;
the buffer cushion is wound and wrapped on the soil pressure box; and
the waterproof cloth wraps one end of the opening of the steel protective tool.
2. The concrete surface soil pressure cell fixing structure of claim 1, wherein the connection bracket includes a cross bar fixed to overlap with the vertical bar.
3. The fixing structure of a concrete surface soil pressure cell according to claim 1 or 2, wherein one end of the vertical rod is bent to form a hook.
4. The concrete surface soil pressure cell securing structure according to claim 1, wherein said cushion pad is a double-sided tape.
5. The structure of claim 1, wherein the anchor block further comprises a binding band that binds the tarp to the steel protector.
6. The structure of claim 1, wherein the fixing base further comprises a traction band connected to the soil pressure cell to pull the soil pressure cell out of the steel supporter.
7. The structure for fixing a concrete surface soil pressure cell according to claim 6, wherein the traction band is provided between the end surface of the soil pressure cell and the base, and both ends of the traction band extend from a gap between the soil pressure cell and the steel protector to the outside of the open end of the steel protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922426251.7U CN211571665U (en) | 2019-12-27 | 2019-12-27 | Fixing structure of concrete surface soil pressure cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922426251.7U CN211571665U (en) | 2019-12-27 | 2019-12-27 | Fixing structure of concrete surface soil pressure cell |
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| Publication Number | Publication Date |
|---|---|
| CN211571665U true CN211571665U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922426251.7U Expired - Fee Related CN211571665U (en) | 2019-12-27 | 2019-12-27 | Fixing structure of concrete surface soil pressure cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431183A (en) * | 2020-11-10 | 2021-03-02 | 陕西省建筑科学研究院有限公司 | Method for mounting soil pressure cell on side wall of pile |
-
2019
- 2019-12-27 CN CN201922426251.7U patent/CN211571665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431183A (en) * | 2020-11-10 | 2021-03-02 | 陕西省建筑科学研究院有限公司 | Method for mounting soil pressure cell on side wall of pile |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200925 Termination date: 20211227 |