CN110984113B - Pile body soil pressure box installation system and installation method - Google Patents
Pile body soil pressure box installation system and installation method Download PDFInfo
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- CN110984113B CN110984113B CN201911356985.0A CN201911356985A CN110984113B CN 110984113 B CN110984113 B CN 110984113B CN 201911356985 A CN201911356985 A CN 201911356985A CN 110984113 B CN110984113 B CN 110984113B
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- 239000002689 soil Substances 0.000 title claims abstract description 85
- 238000009434 installation Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000002787 reinforcement Effects 0.000 claims abstract description 43
- 230000001681 protective effect Effects 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000012806 monitoring device Methods 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims description 38
- 230000006835 compression Effects 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 20
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004297 night vision Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a pile body soil pressure box mounting system and a mounting method, the system comprises an air pump, a pile body, a reinforcement cage, a support rod, a video monitoring device and a power transmission steering device, the inner side of the reinforcement cage is connected with a base, the base is connected with a protective shell, the side surface of the lower part of the protective shell is provided with an opening, the opening is connected with a telescopic bag, the top end of the base is connected with an air cylinder, the air cylinder is connected with the air pump through an air inlet pipe and an air outlet pipe, the inner side of the lower part of the base is connected with a guide sleeve, the support rod is arranged in the guide sleeve, the left end and the right end of the support rod extend to the outside of the guide sleeve, the left end of the support rod is connected with the telescopic bag, the right end of the support rod is connected with a soil pressure box, the power transmission steering device, the invention combines the power transmission steering with the video monitoring device, thereby realizing the visibility of the installation of the soil pressure cell.
Description
Technical Field
The invention belongs to the technical field of soil pressure measurement, and particularly relates to a pile body soil pressure box mounting system and a pile body soil pressure box mounting method.
Background
The pile foundation is composed of foundation piles and bearing platforms connected to pile tops, and is widely applied to high-rise buildings, ports and docks, road bridges, railway bridges and the like. The pile foundation can be divided into cast-in-place piles and precast piles according to the pile forming mode, and the cast-in-place piles are most commonly applied. The cast-in-place pile is constructed by firstly drilling a hole on a construction site, putting a reinforcement cage into the drilled hole after the required depth is reached, and then pouring concrete.
The installation to the soil pressure cell of cast-in-place concrete pile adopts pre-buried mode usually, this kind of mode is comparatively convenient in the installation of the inside soil pressure cell of pile body, but the installation of stake soil interface soil pressure cell adopts pre-buried mode then to have a great deal of problem, equipment if installing on the steel reinforcement cage because the elongation is too big earlier, cause equipment damage with the friction of mud dado, the later stage again because of the insufficient easy concrete of wrapping up completely of pop-up volume, lead to the unable normal work of monitoring facilities, and the excessive space that also can encroach on in the steel reinforcement cage of monitoring facilities installation, thereby influence the concrete placement construction.
The method for installing the soil pressure box between the pile body and the soil body interface basically uses an air pump as a power device, the length of a reserved push-out rod piece is designed by estimating the reserved amount, and the installation of the soil pressure box is realized by the stretching of an air cylinder, but the method cannot accurately monitor the installation position of the soil pressure box, and the accuracy of soil pressure measurement is influenced.
Disclosure of Invention
The invention aims to provide a pile body soil pressure box installation system and method, and aims to solve the technical problem that the accuracy of soil pressure measurement is influenced by the fact that the installation position of a soil pressure box cannot be accurately monitored in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the pile body soil pressure box mounting system comprises a pile body, a steel reinforcement cage, a support rod, a video monitoring device and a power transmission steering device, wherein the steel reinforcement cage is arranged inside the pile body, an air pump is detachably connected to the ground at the top of the steel reinforcement cage, a vertically arranged base is fixedly connected to the side surface inside the steel reinforcement cage, a protective shell is fixedly connected to the base and is positioned inside the steel reinforcement cage, an opening is formed in the side surface of the lower part of the protective shell, a telescopic bag is fixedly connected to the opening, the video monitoring device comprises a video display, the video display is detachably connected to the ground at the top of the steel reinforcement cage, a camera is fixedly connected to the side surface inside the protective shell, a wire is connected between the camera and the video display, and a vertically arranged air cylinder is fixedly connected to the inner side of the upper part of the base, the air cylinder is connected with the air pump through an air inlet pipe and an air outlet pipe, a horizontally arranged guide sleeve is fixedly connected to the inner side of the lower portion of the base, the support rod is arranged in the guide sleeve, the left end and the right end of the support rod extend to the outer portion of the guide sleeve, the left end of the support rod is fixedly connected with the telescopic bag, a soil pressure box support is fixedly connected to the right end of the support rod, a soil pressure box is fixedly arranged in the soil pressure box support, the power transmission steering device is arranged between the telescopic rod of the air cylinder and the support rod, when the air cylinder is pressurized through the air inlet pipe of the air pump, the telescopic rod contracts, and the power transmission steering device enables the support rod to push the soil pressure box outwards along the guide sleeve due to acting force of the telescopic rod.
The power transmission steering device comprises a steel wire rope, a fixed pulley, a guide wheel, a compression spring and a fixed support, wherein the center line of the fixed pulley and the center line of the fixed support are symmetrical about the center line of the support rod, the guide wheel is symmetrically arranged on the side wall inside the base, one end of the guide wheel is fixedly connected with the telescopic bag, the other end of the guide wheel is fixedly connected with the support rod, the compression spring is arranged along the length direction of the support rod, one end of the compression spring is fixedly connected with the support rod, the other end of the compression spring is fixedly connected with the base or the guide sleeve, one end of the steel wire rope is fixed on the telescopic rod, and the other end of the steel wire rope sequentially passes through the fixed pulley and the guide wheel and is fixed on the fixed support.
The power transmission steering device comprises a guide wheel, a driving rack, a steering gear and a driven rack, one end of the guide wheel is fixedly connected with the telescopic bag, the other end of the guide wheel is fixedly connected with the support rod, the driving rack is fixedly connected onto the telescopic rod, the driven rack is fixedly connected onto the inner side wall of the support rod, and the steering gear is fixedly connected onto the base and is respectively meshed with the driving rack and the driven rack.
The support rod is composed of two support rods which are parallel to each other, the compression spring is arranged on the inner sides of the two support rods, one end of the compression spring is fixedly connected with the support rods, and the other end of the compression spring is fixedly connected with the base.
The support rod is composed of two support rods which are parallel to each other, the compression spring is arranged on the outer side of at least one support rod or sleeved on at least one support rod, one end of the compression spring is fixedly connected with the support rod, and the other end of the compression spring is fixedly connected with the guide sleeve.
And a staff gauge is fixedly connected to the support rod along the length direction of the support rod.
The flexible bag divide into two sections, is collapsible section and rigidity section respectively, collapsible section with fixed connection between the rigidity section, the rigidity section deviates from the tip opening and the fixed connection of collapsible section one end are in on the protective housing, collapsible section deviates from the tip fixedly connected with baffle of the one end of rigidity section, the one end of leading wheel pass through the baffle with flexible bag fixed connection, the material of collapsible section is rubber or plastics, the material of baffle is the stainless steel.
The material of protective housing, base is the stainless steel, the outside of protective housing scribbles rust-resistant, anticorrosive material, the confession has been seted up at the protective housing top intake pipe, outlet duct and the pore that the wire passes through.
The invention also provides an installation method for installing the soil pressure cell by using the pile body soil pressure cell installation system, which comprises the following steps:
(1) firstly, all elements in the protective shell are connected and connected with the base, then the soil pressure cell is fixedly connected in the soil pressure cell support, the air cylinder and the air pump are communicated through the air inlet pipe and the air outlet pipe, two ends of the wire are respectively connected with the camera and the video display, and the wire, the air inlet pipe and the air outlet pipe are arranged along the reinforcement cage.
(2) The air pump is started, the air cylinder is pressurized through the air inlet pipe, the telescopic rod is contracted, and the power transmission steering device enables the support rod to outwards push the soil pressure box along the guide sleeve due to acting force of the telescopic rod.
(3) The change of the position of the support rod is observed through the video display, the displacement condition of the support rod is judged, and the pressure value of the air pump is fed back and adjusted based on the change of the measurement value of the soil pressure cell, so that the telescopic rod generates displacement, and the installation position of the soil pressure cell is adjusted.
The invention has the beneficial effects that: (1) according to the invention, the power transmission steering device, the air cylinder, the support rod and the guide sleeve are arranged to realize the steering of displacement, the support rod can automatically recover the initial state by arranging the compression spring, and the telescopic bag is arranged between the protective shell and the support rod, so that the space occupation of the soil pressure box installation system on a reinforcement cage is greatly reduced, the installation position of the soil pressure box can be repeatedly adjusted, and the adjustability of the installation of the soil pressure box is realized; (2) the displacement of the support rod is monitored in real time by arranging the video monitoring device, and the air pressure value of the air pump is accurately adjusted by combining the measured value of the soil pressure cell so as to adjust the acting force of the air cylinder on the telescopic rod, thereby realizing the accurate adjustment of the displacement of the soil pressure cell; (3) the soil pressure cell is arranged on the soil pressure cell support, so that the soil pressure cell can be prevented from being rubbed with a slurry wall in the process of lowering the reinforcement cage, and the soil pressure cell is protected; (4) the video display and the air pump are all detachable devices, and the soil pressure box can be detached after being installed in place, so that the soil pressure box can be used repeatedly and the cost is reduced.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of an operating state of embodiment 1 of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 1;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a schematic structural view of embodiment 2 of the present invention;
FIG. 6 is a schematic structural diagram of an operating state of embodiment 2 of the present invention;
FIG. 7 is an enlarged view at C of FIG. 5;
FIG. 8 is an enlarged view taken at D in FIG. 6;
FIG. 9 is a schematic view of the connection between the compression spring and the base;
FIG. 10 is a schematic view of a compression spring disposed outside one of the struts;
FIG. 11 is a schematic view of a structure in which a compression spring is sleeved on two struts;
fig. 12 is a structural view showing a compression spring disposed on the outer side of two struts.
Reference numerals: 1-pile body, 2-steel reinforcement cage, 3-support rod, 4-air pump, 5-base, 6-protective shell, 7-video display, 8-camera, 9-wire, 10-cylinder, 11-air inlet pipe, 12-air outlet pipe, 13-guide sleeve, 14-expansion bag, 15-soil pressure cell support, 16-soil pressure cell, 17-expansion rod, 18-steel wire rope, 19-fixed pulley, 20-guide wheel, 21-compression spring, 22-fixed support, 23-driving rack, 24-steering gear, 25-driven rack, 26-support rod, 27-scale, 28-foldable section, 29-rigid section, 30-baffle, 31-pore channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "horizontal", "vertical", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1 and 3, the pile body soil pressure cell mounting system comprises a pile body 1, a reinforcement cage 2, a support rod 3, a video monitoring device and a power transmission steering device, wherein the reinforcement cage 2 is arranged inside the pile body 1, an air pump 4 is detachably connected to the ground at the top of the reinforcement cage 2, the air pump 4 is a miniature air pump, a vertically arranged base 5 is fixedly connected to the side surface inside the reinforcement cage 2, the base 5 and the reinforcement cage 2 can be connected by welding, bonding, binding or bolting, a protective shell 6 is welded or bonded to the base 5, the protective shell 6 is positioned inside the reinforcement cage 2, the protective shell 6 and the base 5 are made of stainless steel, the outer side of the protective shell 6 is coated with an antirust and anticorrosive material, the top of the protective shell 6 is provided with a pore passage 31 through which an air inlet pipe 11, an air outlet pipe 12 and a wire 9 pass, the side surface of the lower part of the, opening part fixedly connected with bellows 14, bellows 14 extends to the left end of protective housing 6, bellows 14 divide into two sections, be collapsible section 28 and rigidity section 29 respectively, fixed connection between collapsible section 28 and the rigidity section 29, rigidity section 29 deviates from the tip opening and bolted connection or the hot pressing of collapsible section 28 one end on protective housing 6, the tip that collapsible section 28 deviates from the one end of rigidity section 29 bonds and has baffle 30, the material of collapsible section 28 is rubber or plastics, the material of baffle 30 is the stainless steel. Video monitoring device includes video display unit 7, video display unit 7 can dismantle the subaerial of connection at 2 tops of steel reinforcement cage, fixedly connected with camera 8 on the inside side of protective housing 6, camera 8 is miniature high definition digtal camera, and have good night vision and illumination function, be connected with wire 9 between camera 8 and the video display unit 7, the inboard welding on 5 upper portions of base or bonding have the cylinder 10 of vertical setting, be connected through intake pipe 11 and outlet duct 12 between cylinder 10 and the air pump 4, the material of intake pipe 11 and outlet duct 12 is transparent rubber, be equipped with air-vent valve and barometer on the air pump 4, intake pipe 11, outlet duct 12 and wire 9 are laid and are passed through the ribbon ligature on steel reinforcement cage 2 along steel reinforcement cage 2. The inboard fixed connection of 5 lower parts of base has uide bushing 13 that the level set up, be equipped with rubber seal in the uide bushing 13, cradling piece 3 sets up in uide bushing 13, the material of cradling piece 3 is stainless steel or aluminum alloy, both ends extend to the outside of uide bushing 13 about cradling piece 3, the left end and the 30 fixed connection of baffle of cradling piece 3, the right-hand member fixedly connected with soil pressure cell support 15 of cradling piece 3, soil pressure cell support 15 internal fixation has soil pressure cell 16, soil pressure cell support 15's material is the stainless steel, avoid transferring in-process soil pressure cell 16 and mud wall friction at steel reinforcement cage 2, have the guard action to soil pressure cell 16. The power transmission steering device comprises a steel wire rope 18, a fixed pulley 19, a guide wheel 20, a compression spring 21 and a fixed support 22, wherein the center line of the fixed pulley 19 and the center line of the fixed support 22 use the center line of the support rod 3 as a symmetry axis and are symmetrically welded or bonded on the side wall inside the base 5, one end of the guide wheel 20 is fixedly connected with the baffle 30, and the other end of the guide wheel 20 is fixedly connected with the end part of the left end of the support rod 3. As shown in fig. 9, 10, 11, and 12, the support rod 3 is composed of two parallel support rods 26, the compression spring 21 is disposed along the length direction of the support rod 3, the compression spring 21 is disposed inside the two support rods 26, one end of the compression spring 21 is fixedly connected to the support rods 26, the other end of the compression spring 21 is fixedly connected to the base 5 or the compression spring 21 is disposed along the length direction of the support rod 3, the compression spring 21 is disposed outside at least one support rod 26 or sleeved on the two support rods 26, one end of the compression spring 21 is fixedly connected to the support rods 26, the other end of the compression spring 21 is fixedly connected to the guide sleeve 13, the support rod 3 is fixedly connected to the scale 27 along the length direction thereof, the surface of the scale 27 is coated with anticorrosive, antirust and waterproof materials, and the scale 27 has a luminous function. One end of a steel wire rope 18 is fixed on the telescopic rod 17, the other end of the steel wire rope passes through the fixed pulley 19 and the guide wheel 20 in sequence and then is fixed on the fixed support 22, and lubricating oil is coated on the outer side of the steel wire rope 18 to reduce friction. As shown in fig. 2 and 4, when the air cylinder 10 is pressurized through the air inlet pipe 11 of the air pump 4, the telescopic rod 17 contracts, the lower support rod 3 and the compression spring 21 are stressed by the steel wire rope 18, the compression spring 21 contracts, and meanwhile, the telescopic bag 14 is compressed by the rightward tension, and the support rod 3 pushes the soil pressure box 16 outwards along the guide sleeve 13.
The method for mounting the soil pressure cell by using the pile body soil pressure cell mounting system comprises the following steps:
(1) firstly, connecting all elements in a protective shell 6 well and connecting the elements with a base 5, then fixedly connecting a soil pressure cell 16 in a soil pressure cell support 15, connecting an air cylinder 10 and an air pump 4 through an air inlet pipe 11 and an air outlet pipe 12, respectively connecting two ends of a lead 9 with a camera 8 and a video display 7, and arranging the lead 9, the air inlet pipe 11 and the air outlet pipe 12 along a reinforcement cage 2;
(2) the air pump 4 is started, the air cylinder 10 is pressurized through the air inlet pipe 11, the telescopic rod 17 contracts, and the power transmission steering device enables the support rod 3 to push the soil pressure box 16 outwards along the guide sleeve 13 due to the acting force of the telescopic rod 17;
(3) the position change of the support rod 3 is observed through the video display 7, the displacement condition of the support rod 3 is judged, and the pressure value of the air pump 4 is fed back and adjusted based on the change of the measurement value of the soil pressure box 16, so that the telescopic rod 17 generates displacement, and the installation position of the soil pressure box 16 is adjusted.
Example 2
As shown in fig. 5 and 7, the pile body soil pressure cell mounting system comprises a pile body 1, a reinforcement cage 2, a support rod 3, a video monitoring device and a power transmission steering device, wherein the reinforcement cage 2 is arranged inside the pile body 1, an air pump 4 is detachably connected to the ground at the top of the reinforcement cage 2, the air pump 4 is a miniature air pump, a vertically arranged base 5 is fixedly connected to the side surface inside the reinforcement cage 2, the base 5 and the reinforcement cage 2 can be connected by welding, bonding, binding or bolting, a protective shell 6 is welded or bonded to the base 5, the protective shell 6 is positioned inside the reinforcement cage 2, the protective shell 6 and the base 5 are made of stainless steel, the outer side of the protective shell 6 is coated with an antirust and anticorrosive material, the top of the protective shell 6 is provided with a pore passage 31 through which an air inlet pipe 11, an air outlet pipe 12 and a wire 9 pass, the side surface of the lower part of the protective, the opening part is fixedly connected with the telescopic bag 14, the telescopic bag 14 is divided into two sections, namely a foldable section 28 and a rigid section 29, the foldable section 28 is fixedly connected with the rigid section 29, the rigid section 29 deviates from an end part opening at one end of the foldable section 28 and is connected with the protective shell 6 through bolts or hot pressed, a baffle 30 is bonded at the end part of one end of the foldable section 28 deviating from the rigid section 29, the foldable section 28 is made of rubber or plastic, and the baffle 30 is made of stainless steel. Video monitoring device includes video display unit 7, video display unit 7 can dismantle the subaerial of connection at 2 tops of steel reinforcement cage, fixedly connected with camera 8 on the inside side of protective housing 6, camera 8 is miniature high definition digtal camera, and have good night vision and illumination function, be connected with wire 9 between camera 8 and the video display unit 7, the inboard welding on 5 upper portions of base or bonding have the cylinder 10 of vertical setting, be connected through intake pipe 11 and outlet duct 12 between cylinder 10 and the air pump 4, the material of intake pipe 11 and outlet duct 12 is transparent rubber, be equipped with air-vent valve and barometer on the air pump 4, intake pipe 11, outlet duct 12 and wire 9 are laid and are passed through the ribbon ligature on steel reinforcement cage 2 along steel reinforcement cage 2. Inboard fixed connection of base 5 lower part has uide bushing 13 that the level set up, be equipped with rubber seal in the uide bushing 13, cradling piece 3 sets up in uide bushing 13, the material of cradling piece 3 is stainless steel or aluminum alloy, both ends extend to the outside of uide bushing 13 about cradling piece 3, the left end and the 30 fixed connection of baffle of cradling piece 3, the right-hand member fixedly connected with soil pressure cell support 15 of cradling piece 3, soil pressure cell support 15 internal fixation has soil pressure cell 16, soil pressure cell support 15's material is the stainless steel, avoid transferring in-process soil pressure cell 16 and mud wall friction at steel reinforcement cage 2, have the guard action to soil pressure cell 16, its length direction fixedly connected with scale 27 is followed on the cradling piece 3, scale 27 has the night light function, scribble anticorrosive on scale 27's surface, rust-resistant and waterproof material. The power transmission turns to the process and includes leading wheel 20, initiative rack 23, steering gear 24 and driven rack 25, the one end and the baffle 30 fixed connection of leading wheel 20, the other end and the 3 fixed connection of cradling piece of leading wheel 20, initiative rack 23 fixed connection is on telescopic link 17, driven rack 25 fixed connection is on the inside wall of cradling piece 3, steering gear 24 is located uide bushing 13 and welds or bonds on base 5, and mesh with initiative rack 23 and driven rack 25 respectively, steering gear 24, the junction of initiative rack 23 and driven rack 25 scribbles lubricating oil, reduce frictional force. As shown in fig. 6 and 8, the air pump 4 pressurizes the air cylinder 10 through the air inlet pipe 11, so that the telescopic rod 17 contracts, the driving rack 23 causes the steering gear 24 to rotate, and the support rod 3 to move to the right, and meanwhile, the telescopic bag 14 is compressed by the rightward pulling force, and the support rod 3 pushes the soil pressure box 16 outwards along the guide sleeve 13.
The mounting method of example 2 is the same as example 1.
The air pump 4, the video display 7, the air cylinder 10, the fixed pulley 19, the compression spring 21, the soil pressure cell 16, the guide sleeve 13 and the camera 8 are conventional devices, and the specific structure is not described in detail. In addition, the cylinder 10 can be replaced by a micro servo motor, a hydraulic electric cylinder or a micro motor.
Claims (9)
1. The utility model provides a pile body soil pressure cell installing the system which characterized in that: the device comprises a pile body, a steel reinforcement cage, a support rod, a video monitoring device and a power transmission steering device, wherein the steel reinforcement cage is arranged inside the pile body, an air pump is detachably connected to the ground at the top of the steel reinforcement cage, a vertically arranged base is fixedly connected to the side surface inside the steel reinforcement cage, a protective shell is fixedly connected to the base and is positioned inside the steel reinforcement cage, an opening is formed in the side surface of the lower portion of the protective shell, a telescopic bag is fixedly connected to the opening, the video monitoring device comprises a video display, the video display is detachably connected to the ground at the top of the steel reinforcement cage, a camera is fixedly connected to the side surface inside the protective shell, a wire is connected between the camera and the video display, a vertically arranged air cylinder is fixedly connected to the inner side of the upper portion of the base, and the air cylinder is connected with the air pump through, the inner side of the lower portion of the base is fixedly connected with a horizontally arranged guide sleeve, the support rod is arranged in the guide sleeve, the left end and the right end of the support rod extend to the outside of the guide sleeve, the left end of the support rod is fixedly connected with the telescopic bag, the right end of the support rod is fixedly connected with a soil pressure cell support, a soil pressure cell is fixed in the soil pressure cell support, the power transmission steering device is arranged between a telescopic rod of the cylinder and the support rod, when the cylinder is pressurized through an air inlet pipe of the air pump, the telescopic rod contracts, and the power transmission steering device enables the support rod to push the soil pressure cell outwards along the guide sleeve due to acting force of the telescopic rod.
2. The pile soil pressure cell installation system of claim 1, wherein: the power transmission steering device comprises a steel wire rope, a fixed pulley, a guide wheel, a compression spring and a fixed support, wherein the center line of the fixed pulley and the center line of the fixed support are symmetrical about the center line of the support rod, the guide wheel is symmetrically arranged on the side wall inside the base, one end of the guide wheel is fixedly connected with the telescopic bag, the other end of the guide wheel is fixedly connected with the support rod, the compression spring is arranged along the length direction of the support rod, one end of the compression spring is fixedly connected with the support rod, the other end of the compression spring is fixedly connected with the base or the guide sleeve, one end of the steel wire rope is fixed on the telescopic rod, and the other end of the steel wire rope sequentially passes through the fixed pulley and the guide wheel and is fixed on the fixed support.
3. The pile soil pressure cell installation system of claim 1, wherein: the power transmission steering device comprises a guide wheel, a driving rack, a steering gear and a driven rack, one end of the guide wheel is fixedly connected with the telescopic bag, the other end of the guide wheel is fixedly connected with the support rod, the driving rack is fixedly connected onto the telescopic rod, the driven rack is fixedly connected onto the inner side wall of the support rod, and the steering gear is fixedly connected onto the base and is respectively meshed with the driving rack and the driven rack.
4. The pile soil pressure cell installation system of claim 2, wherein: the support rod is composed of two support rods which are parallel to each other, the compression spring is arranged on the inner sides of the two support rods, one end of the compression spring is fixedly connected with the support rods, and the other end of the compression spring is fixedly connected with the base.
5. The pile soil pressure cell installation system of claim 2, wherein: the support rod is composed of two support rods which are parallel to each other, the compression spring is arranged on the outer side of at least one support rod or sleeved on at least one support rod, one end of the compression spring is fixedly connected with the support rod, and the other end of the compression spring is fixedly connected with the guide sleeve.
6. The pile soil pressure cell installation system of any of claims 1-5, wherein: and a staff gauge is fixedly connected to the support rod along the length direction of the support rod.
7. The pile soil pressure cell installation system of any of claims 2-5, wherein: the flexible bag divide into two sections, is collapsible section and rigidity section respectively, collapsible section with fixed connection between the rigidity section, the rigidity section deviates from the tip opening and the fixed connection of collapsible section one end are in on the protective housing, collapsible section deviates from the tip fixedly connected with baffle of the one end of rigidity section, the one end of leading wheel pass through the baffle with flexible bag fixed connection, the material of collapsible section is rubber or plastics, the material of baffle is the stainless steel.
8. The pile soil pressure cell installation system of any of claims 1-5, wherein: the material of protective housing, base is the stainless steel, the outside of protective housing scribbles rust-resistant, anticorrosive material, the confession has been seted up at the protective housing top intake pipe, outlet duct and the pore that the wire passes through.
9. A method for installing an earth pressure cell by using the pile earth pressure cell installation system of any one of claims 1 to 8, wherein the method comprises the following steps: the method comprises the following steps:
(1) firstly, connecting all elements in a protective shell and connecting the elements with a base, then fixedly connecting a soil pressure cell in a soil pressure cell support, communicating an air cylinder and an air pump through an air inlet pipe and an air outlet pipe, respectively connecting two ends of a wire with a camera and a video display, and arranging the wire, the air inlet pipe and the air outlet pipe along a reinforcement cage;
(2) the air pump is started, the air cylinder is pressurized through the air inlet pipe, the telescopic rod is contracted, and the power transmission steering device pushes the support rod outwards along the guide sleeve under the action force of the telescopic rod;
(3) the change of the position of the support rod is observed through the video display, the displacement condition of the support rod is judged, and the pressure value of the air pump is fed back and adjusted based on the change of the measurement value of the soil pressure cell, so that the telescopic rod generates displacement, and the installation position of the soil pressure cell is adjusted.
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