CN218204424U - Foundation pit diagonal bracing equipment - Google Patents
Foundation pit diagonal bracing equipment Download PDFInfo
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- CN218204424U CN218204424U CN202221417436.7U CN202221417436U CN218204424U CN 218204424 U CN218204424 U CN 218204424U CN 202221417436 U CN202221417436 U CN 202221417436U CN 218204424 U CN218204424 U CN 218204424U
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Abstract
The utility model discloses a foundation pit diagonal bracing device, which comprises a bracing system, an embedding system and an angle adjusting system; the supporting system comprises a supporting base, a hydraulic supporting rod cylinder barrel, a jack, a hydraulic piston rod, a hydraulic piston extension rod and a grouting bag; the support base is hinged with the hydraulic support rod cylinder barrel, a hydraulic piston rod is movably inserted into the hydraulic support rod cylinder barrel, a jack is arranged in the hydraulic support rod cylinder barrel and is positioned at the front end of the hydraulic piston rod, a hydraulic piston extension rod is fixedly connected with the hydraulic piston rod, and a grouting bag is arranged at the rear end of the hydraulic piston extension rod; still include the slide rail, the slide rail is located between the inner wall and the hydraulic piston rod of this hydraulic support pole cylinder. The device can be recovered and reused. After the work is finished, the support recovery equipment is removed according to the steps, and other parts except the grouting bag can be reused, so that the grouting bag has good economy and plays an important role in energy conservation, emission reduction and open source throttling.
Description
Technical Field
The utility model relates to a excavation supporting field, concretely relates to excavation diagonal bracing equipment.
Background
The foundation pit engineering is the important and difficult point of various civil engineering projects, and because of the great risk, major accidents are often generated in the actual engineering, so that the construction progress is slowed down, the surrounding environment is destroyed, and huge economic loss is caused, and even the life safety is endangered. The foundation pit support is an indispensable ring in foundation pit engineering, and the safety of underground structure construction and the surrounding environment of the foundation pit is guaranteed.
Most of the existing supporting means have the defects of difficult recovery, difficult adjustment, slow construction and the like. Particularly, when the engineering is inevitably subjected to extreme weather conditions such as seasonal heavy rainfall and the like, the weakening and the heavy increase of the shear strength parameters of the soil body inevitably cause the reduction of the stability of the foundation pit, and at the moment, if the existing support safety reserve is insufficient, the stability of the foundation pit cannot be ensured, so that the economic loss which is difficult to estimate is caused, and even the personal safety is endangered.
At present, most of the existing supporting means can not be adjusted for the second time, so that the safety of foundation pit engineering is difficult to provide enough guarantee, and the emergency ability is not provided.
Therefore, research and development of the foundation pit supporting equipment with the emergency function and the supporting force adjusting function have important significance on the production safety of foundation pit engineering.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a foundation ditch bearing diagonal equipment.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
a foundation pit diagonal bracing device comprises a bracing system, an embedding system and an angle adjusting system; the supporting system comprises a supporting base, a hydraulic supporting rod cylinder barrel, a jack, a hydraulic piston rod and a grouting bag; the supporting base is hinged with a hydraulic supporting rod cylinder barrel, the hydraulic piston rod is movably inserted into the hydraulic supporting rod cylinder barrel, the jack is movably arranged in the hydraulic supporting rod cylinder barrel through a jack frame, the jack is located at the front end of the hydraulic piston rod, and the rear end of the hydraulic piston rod is provided with the grouting bag in a swinging mode; the supporting base is fixed through the embedding system, and the angle adjusting system is movably connected with the supporting base and the hydraulic supporting rod cylinder barrel.
As a further improvement, the front end periphery of the hydraulic piston rod is matched with the inner wall of the hydraulic support rod cylinder.
As a further improvement, the at least one section periphery of jack frame with the inner wall looks adaptation of hydraulic pressure bracing piece cylinder, this jack frame slidable locate in this hydraulic pressure bracing piece cylinder, on the one end of jack was fixed in this jack frame, the other end of this jack with hydraulic pressure piston rod front end fixed connection.
As a further improvement, the supporting system further comprises a slide rail, and the slide rail is arranged between the inner wall of the hydraulic supporting rod cylinder and the hydraulic piston rod.
As a further improvement, the supporting system further comprises a hydraulic piston extension rod, the hydraulic piston extension rod is fixedly connected with the hydraulic piston rod through a flange, and the grouting bag can be arranged at the rear end of the hydraulic piston extension rod in a swinging mode.
As a further improvement of the utility model, the embedding system comprises a plurality of screw piles, the supporting base is provided with reserved hole sites, and the screw piles penetrate through the reserved hole sites to fix the supporting base on the field;
the angle adjusting system comprises a hydraulic lifting rod, and two ends of the hydraulic lifting rod are respectively hinged with the supporting base and the hydraulic supporting rod cylinder barrel.
As a further improvement, the support system further comprises a hydraulic rod, both ends of the hydraulic rod are respectively hinged to the grouting bag and the hydraulic piston extension rod.
When the foundation pit diagonal bracing equipment is used for construction, the method comprises the following steps:
step one, placing equipment;
lifting the cylinder barrel of the hydraulic support rod and adjusting the telescopic length of the hydraulic piston rod;
step three, swinging the grouting bag to adjust the position;
grouting into the grouting bag;
and step five, applying a supporting force by using a jack.
As a further improvement of the present invention, in the second step, the lifting or lowering of the hydraulic support rod cylinder is adjusted by the extension and retraction of the hydraulic lifting rod;
the telescopic length of the hydraulic piston rod is adjusted by applying oil pressure to the left end or the right end inside the hydraulic support rod cylinder barrel.
As a further improvement of the utility model, the grouting bag is fixed on H-shaped steel, the H-shaped steel is connected with the hydraulic piston extension rod through a universal joint, a hydraulic rod is hinged between the hydraulic piston extension rod and the H-shaped steel, and the inclination degree of the grouting bag is adjusted through the expansion and contraction of the hydraulic rod;
and applying supporting force through a jack, wherein the stroke of the jack is 200mm, and the maximum jacking force is 200T.
Wherein, the grouting bag is tightly attached to the foundation pit; the grouting bag is tightly attached to the H-shaped steel and connected with the H-shaped steel through a bolt; the H-shaped steel is connected with the hydraulic piston extension rod through a universal joint and a hydraulic rod; the hydraulic piston extension rod is connected with the hydraulic piston rod through a flange; the hydraulic piston rod is connected with the hydraulic support rod cylinder barrel through a sliding rail, so that the hydraulic piston rod slides stably; the inside of the hydraulic support rod cylinder barrel is used for controlling the extension of the piston rod through hydraulic oil.
The grouting bag is provided with a reserved hole position, and a cement pump can be sent into the grouting bag.
And a bolt hole is formed in the hydraulic piston rod to provide a rod length locking function.
A jack is arranged in the hydraulic support rod cylinder barrel and connected with a hydraulic piston rod, and the hydraulic support rod cylinder barrel can provide thrust of 150T at most.
The hydraulic support rod cylinder barrel is connected with the base to provide the function of lifting the rod piece.
The hydraulic lifting rod is characterized in that two sides of the hydraulic lifting rod are respectively connected with the support base and the hydraulic support rod cylinder barrel, the function of lifting the hydraulic support rod cylinder barrel is mainly provided, and the maximum lifting angle of the hydraulic support rod is 45 degrees.
Six holes with the diameter of 320mm are reserved in the supporting base, and hole positions are mainly provided for the spiral penetrating piles.
The base truss is connected with the supporting base through bolts, the truss provides a plurality of bolt hole positions, and position adjustment can be carried out according to actual conditions.
The base truss is closely contacted with the screw pile, and can transmit the horizontal force of the supporting base to the screw pile.
The parameters of the spiral pile are as follows: the diameter of the pile rod is 120mm, the diameter of the blade is 300mm, the thread pitch is 150mm, the length of the pile is 3000mm, and the pile mainly provides horizontal force for supporting a foundation pit.
The stroke of the hydraulic lifting rod is 1300mm, so that the lifting angle range of the cylinder barrel of the hydraulic supporting rod is ensured to be 0-45 degrees.
The stroke of the hydraulic piston rod is 6000mm, and the maximum vertical distance of the supporting system can be ensured to be 15000mm.
The hydraulic piston rod is formed by machining a steel pipe with the diameter of 609mm and the wall thickness of 16 mm.
The extension rod of the hydraulic piston is formed by processing a steel pipe with the diameter of 609mm and the wall thickness of 16 mm.
The hydraulic support rod cylinder barrel is formed by machining a steel pipe with the diameter of 700mm and the wall thickness of 16 mm.
The stroke of the hydraulic rod can ensure that the control range of the angle between the H-shaped steel and the ground is 60-120 degrees, and the effect of tightly attaching the grouting bag to the foundation pit is achieved.
The cement slurry has a certain proportion, the pumping time ranges from 15min to 20min, and the initial setting time of the cement slurry ranges from 15min to 20min. In addition, the strength of the cement paste satisfies that the 3d strength is more than 15MPa.
The stroke of the jack is 200mm, and the maximum jacking force is 200T.
The construction recovery method of the foundation pit diagonal bracing equipment comprises the following steps:
(1) Pulling out the bolt;
(2) The jack unloads the strength;
(3) Shortening a hydraulic piston rod of the support system;
(4) The hydraulic support rod cylinder barrel descends;
(5) Disassembling the grouting bag;
(6) Dismantling a bottom plate truss;
(7) Dismantling the spiral pile;
(8) And (5) recovering equipment and arranging the field.
The utility model discloses following beneficial effect has:
the equipment has strong adaptability to various environments, has low requirement on geological environment, and can cope with various foundation conditions.
The equipment has flexibility, and parameters of the equipment can be adjusted according to actual conditions to cope with various working conditions.
The equipment has the advantages of quick construction and short construction period, and can be used as an emergency rescue device. When the foundation pit generates foreseeable instability, the equipment can be quickly adopted to carry out emergency work, and the total construction period should not exceed 3d.
The device can be recovered and reused. After the work is finished, the support recovery equipment is removed according to the steps, and other parts except the grouting bag can be reused, so that the grouting bag has good economy and plays an important role in energy conservation, emission reduction and open source throttling.
The utility model discloses developed a foundation ditch bearing diagonal equipment for the first time, can be used to excavation supporting and speedily carry out rescue work, richened current excavation supporting's form, and provide a new scheme for the work of speedily carrying out rescue work of foundation ditch or side slope, but possess the recoverability in addition, have apparent engineering value, good economic nature, ease for use and universality.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
FIG. 1 is a schematic view of the utility model of a foundation pit diagonal bracing device in a recovery state;
FIG. 2 is a schematic view of the working state of the foundation pit diagonal bracing apparatus of the present invention;
FIG. 3 is a schematic view of the overall structure of the foundation pit diagonal bracing apparatus of the present invention;
FIG. 4 is a detailed view of the inside of a hydraulic support rod cylinder of the foundation pit diagonal bracing apparatus of the present invention;
FIG. 5 is a detailed view of the front end of the hydraulic piston rod of the foundation pit diagonal bracing apparatus of the present invention;
fig. 6 is a top view of a support base of the foundation pit diagonal bracing apparatus of the present invention;
fig. 7 is a top view of a hydraulic piston rod of the foundation pit diagonal bracing apparatus of the present invention;
FIG. 8 is a construction process of the utility model of a foundation pit diagonal bracing device;
fig. 9 is the utility model discloses the recovery flow of foundation ditch bearing diagonal equipment.
Detailed Description
An embodiment, refer to fig. 1 to 9, a foundation ditch bearing diagonal equipment, including angular adjustment system, braced system, embedded system.
As shown in figure 3 an angular adjustment system in foundation ditch bearing diagonal equipment, lift pole 6 by hydraulic pressure and constitute, this pole both ends are through articulated joint support base 1 and hydraulic piston rod 4 respectively.
As shown in FIG. 3, a braced system in foundation ditch bearing diagonal equipment, including supporting base 1, hydraulic pressure bracing piece cylinder 3, jack frame 4, jack 5, slide rail 7, hydraulic piston rod 8, flange 9, hydraulic piston extension rod 10, universal joint 11, H shaped steel 12, hydraulic stem 13 and slip casting bag 14.
As shown in fig. 3-5, the support base 1 is connected with the hydraulic support rod cylinder 3 in a hinged manner, the jack frame 4 and the hydraulic piston rod 8 are sequentially installed inside the hydraulic support rod cylinder 3, the jack 5 is installed inside the jack frame 4, the jack frame 4 is in contact with the jack 5, and the jack 5 is in contact with the hydraulic piston rod 8 and can apply a jacking force to the hydraulic piston rod. The jack frame 4 may also be in contact with the hydraulic piston rod 8. There is slide rail 7 between the inner wall of hydraulic support pole cylinder 3 and hydraulic piston rod 8, and slide rail 7 is convenient for hydraulic piston rod 8's flexible removal. The hydraulic piston rod 8 is connected with a hydraulic piston extension rod 10 through a flange 9. The hydraulic piston extension rod 10 is connected with the H-shaped steel 12 through a universal joint 11. The grouting bag 14 is connected with the H-shaped steel 12 through bolts. Two ends of the hydraulic rod 13 are connected with the H-shaped steel 12 and the hydraulic piston extension rod 10 in a hinged mode.
As shown in figure 3, the utility model discloses an embedded system in foundation ditch bearing diagonal equipment, by the screw pile 2 constitution. The screw pile 2 is driven into the reserved hole site 15 of the supporting base 1, and the screw pile 15 is closely contacted with the base support 1 to provide support reaction force.
As shown in fig. 7, the utility model discloses construction method, including following step:
and determining the installation position of the equipment and related parameters. According to the geological survey data and calculation, the installation position and relevant parameters of the equipment are determined, the grouting bag of the equipment is in close contact with the side wall of the foundation pit in principle, the supporting force can be applied in the direction perpendicular to the foundation pit, and the equipment is kept stable on the premise that the sufficient foundation counter force can be provided by covering soil under the supporting base.
And (5) leveling the field. And leveling and cleaning the working surface according to actual conditions and requirements.
And (5) placing the equipment. The whole set of equipment is hoisted by using a crane, the supporting base 1 is placed at a preset position, and the whole set of system faces the side wall of the foundation pit.
The screw pile 15 is installed. The pile driver is arranged at a preset position, the spiral pile 2 is aligned to the reserved hole site 15 of the support base 1, the spiral pile 2 is driven into a preset depth in sequence, the posture of the spiral pile 2 is controlled at any time to prevent the pile from being askew, and the pile driver is removed after the pile driver is installed.
And adjusting the position of the hydraulic support rod cylinder 3. According to the set parameters, the hydraulic lifting rod 6 of the angle adjusting system is utilized to apply jacking force to slowly lift the hydraulic support rod cylinder 3 to a preset angle, and the angle is kept unchanged.
The hydraulic piston rod 8 is adjusted in position. According to the set parameters, oil pressure is added into the hydraulic support rod cylinder barrel 3, the hydraulic piston rod 8 is slowly pushed to move towards the side wall direction of the foundation pit, the whole support system is extended to a target value, then oil filling is stopped, and the length of the support system is kept unchanged.
The position of the H-beam 12 is adjusted. And controlling the hydraulic rod 13 to adjust the posture of the H-shaped steel 12 according to the set parameters, slowly adding oil pressure to adjust the posture of the H-shaped steel 13 to be horizontal to the side wall of the foundation pit, stopping pressurizing, and keeping the posture of the H-shaped steel unchanged.
Grouting is performed in the grouting bags 14. Connecting a pumping pipe of the pumping machine with a reserved hole of the upper grouting bag, starting the pumping machine to set pressure to pump the cement paste into the grouting bag 14, ensuring that the total pumping time does not exceed 20min, and waiting for the initial setting of the cement paste.
The jack 5 applies a supporting force. According to the set parameters, the jacking force is slowly applied by the jack 5 until the target value is reached and maintained.
Locking the support system length. The pin is inserted into the pin hole 16 of the hydraulic piston rod 8 on the support system. The length of the lock is locked, and double safety insurance is provided while the support system is ensured to provide sufficient transmission force.
As shown in FIG. 8, the construction method of the present invention includes the steps of installing and recovering the equipment. The recovery of the foundation pit diagonal bracing equipment comprises the following steps:
unlocking the support system. The bolts in the bolt holes 16 of the hydraulic piston rod 8 are pulled out, releasing the degree of freedom of the hydraulic piston rod 8 on the support system.
The jack 5 unloads the force. The oil pressure is slowly released, the jacking force of the jack 5 is released to 0, and the stability of the supporting system is noticed at any time in the process.
The hydraulic piston rod 8 is adjusted. The oil pressure is slowly released, the piston rod is gradually retracted to the initial position, and the stability of the support system is paid attention to at any time in the process.
The hydraulic support rod cylinder 3 is adjusted. The oil pressure of the hydraulic lifting rod 6 of the angle adjusting system is slowly released, and the hydraulic support rod cylinder 3 is slowly lowered to gradually level the posture.
The grouting capsule 14 is removed. And (4) twisting out the bolt for fixing the grouting bag on the H-shaped steel 12, and unloading the grouting bag 14.
The screw pile 2 is dismantled. The pile driver is placed in a predetermined position, aligned in turn with each screw pile 2 and gradually twisted out.
And (5) recovering equipment and arranging the field.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, using the technical means and contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.
Claims (7)
1. The utility model provides a foundation ditch bearing diagonal equipment which characterized in that: the device comprises a supporting system, an embedding system and an angle adjusting system; the supporting system comprises a supporting base, a hydraulic supporting rod cylinder barrel, a jack, a hydraulic piston rod, a hydraulic piston extension rod and a grouting bag; the support base is hinged with the hydraulic support rod cylinder barrel, the hydraulic piston rod is movably inserted into the hydraulic support rod cylinder barrel, the jack is movably arranged in the hydraulic support rod cylinder barrel through a jack frame, the jack is positioned at the front end of the hydraulic piston rod, the hydraulic piston extension rod is fixedly connected with the hydraulic piston rod through a flange, and the grouting bag is arranged at the rear end of the hydraulic piston extension rod in a swinging manner; the supporting base is fixed through the embedding system, and the angle adjusting system is movably connected with the supporting base and the hydraulic supporting rod cylinder barrel;
the supporting system further comprises a sliding rail, and the sliding rail is arranged between the inner wall of the hydraulic supporting rod cylinder barrel and the hydraulic piston rod.
2. The foundation pit diagonal bracing device according to claim 1, wherein the outer periphery of the front end of the hydraulic piston rod is matched with the inner wall of the hydraulic support rod cylinder barrel.
3. The foundation pit diagonal bracing device according to claim 1, wherein at least one section of the periphery of the jack frame is matched with the inner wall of the hydraulic support rod cylinder barrel.
4. The foundation pit diagonal bracing device according to claim 3, wherein the jack frame is slidably arranged in the hydraulic support rod cylinder, one end of the jack is fixed on the jack frame, and the other end of the jack is fixedly connected with the front end of the hydraulic piston rod.
5. The foundation pit diagonal bracing apparatus according to claim 1, wherein the bracing system further comprises an H-shaped steel, the grouting bag is fixed on the H-shaped steel, and the H-shaped steel is connected with the hydraulic piston extension rod through a universal joint.
6. The foundation pit diagonal bracing device according to claim 1, wherein the embedment system comprises a plurality of screw piles, the bracing base is provided with reserved hole sites, and the screw piles penetrate through the reserved hole sites to fix the bracing base on a site;
the angle adjusting system comprises a hydraulic lifting rod, and two ends of the hydraulic lifting rod are respectively hinged with the support base and the hydraulic support rod cylinder barrel.
7. The foundation pit diagonal bracing apparatus according to claim 5, wherein the bracing system further comprises a hydraulic rod, and two ends of the hydraulic rod are respectively hinged with the grouting bag and the hydraulic piston extension rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221417436.7U CN218204424U (en) | 2022-06-08 | 2022-06-08 | Foundation pit diagonal bracing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221417436.7U CN218204424U (en) | 2022-06-08 | 2022-06-08 | Foundation pit diagonal bracing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218204424U true CN218204424U (en) | 2023-01-03 |
Family
ID=84646618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221417436.7U Active CN218204424U (en) | 2022-06-08 | 2022-06-08 | Foundation pit diagonal bracing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218204424U (en) |
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2022
- 2022-06-08 CN CN202221417436.7U patent/CN218204424U/en active Active
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