CN213805412U - Resistance-increasing large-deformation intelligent enclosure structure - Google Patents
Resistance-increasing large-deformation intelligent enclosure structure Download PDFInfo
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- CN213805412U CN213805412U CN202022451762.7U CN202022451762U CN213805412U CN 213805412 U CN213805412 U CN 213805412U CN 202022451762 U CN202022451762 U CN 202022451762U CN 213805412 U CN213805412 U CN 213805412U
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Abstract
The utility model discloses an increase intelligent envelope of resistance large deformation belongs to the building engineering and struts technical field, including enlarging end, precast pile, stirring stake, bed course, enlarge end bag, batter pile connection key, jack, erector pile connection key, let press eyelidretractor, data transmission line, control center, axial force monitor, enlarge support, receiver increase resistance groove, receiver lateral wall, receiver cavity, propeller main part pole, propeller extension pole, the protruding key of propeller. The utility model discloses can improve the stability of diagonal brace according to the condition dynamic adjustment of strutting of foundation ditch, reduce construction period.
Description
Technical Field
The utility model relates to a building engineering struts technical field, in particular to increase intelligent envelope of resistance large deformation.
Background
Along with the pace of the urbanization process in China, the development and utilization of underground space are rapidly developed, foundation pit engineering is more and more common, and therefore the enclosure design and construction process of the foundation pit are continuously developed. The foundation pit engineering is a temporary supporting structure and generally plays a role in the open cut stage, so in the foundation pit supporting design, the form of the enclosure structure is generally required to be considered by integrating the factors of the surrounding environment, the soil condition, the excavation depth of the foundation pit, the structure safety, the engineering cost, the construction convenience, the construction period and the like. For foundation pit engineering in a soft soil area within an excavation depth range of 5m, the enclosing structure form used in the existing supporting technology generally adopts the technologies of a cement soil gravity type enclosing wall, a section steel cement soil stirring wall, slope-laying excavation, inclined cast bracing supporting and the like.
The inclined cast support is characterized in that a central island is arranged at the bottom of a foundation pit, a crown beam is connected with the central island by adopting rod pieces such as steel pipes and profile steels, a soil body below the rod pieces is not excavated temporarily in the excavation process, the construction cost is low, and the influence on the surrounding environment is small.
To sum up, the mode of strutting of shallow foundation ditch is still not perfect enough to two-layer basement has all been built to present most building, has surpassed the scope on shallow basis basically, and foretell scheme is then no longer suitable for, nevertheless adopts the mode of strutting that the deep foundation ditch is commonly used, and not only the cost is high, and is also great to the influence of all ring edge borders, consequently, the utility model provides an increase intelligent envelope of resistance and large deformation on this basis.
Disclosure of Invention
To the above-mentioned technical problem who exists among the prior art, the utility model provides a resistance-increasing large deformation intelligent envelope has overcome the not enough of prior art. The supporting rod of the traditional inclined throwing support is easy to try for buckling damage, the utility model divides the supporting rod into a plurality of sections, reduces the length of each section, and is provided with the yielding propeller and the yielding receiver, thereby increasing the length of the composite section of the supporting rod and improving the stability of the rod piece; through the large deformation of the rod piece and the arrangement of the jack, the dynamic adjustment can be carried out at any time according to the supporting condition of the foundation pit, so that the instability of the rod piece is avoided; by adopting the vertical composite piles as the fender piles, the construction period is shortened compared with the traditional cast-in-place piles, the inclined composite piles replace central islands, later construction is not influenced, the construction efficiency is improved, and the bottom of each inclined strut is provided with an enlarged bottom bag, so that the anchoring force of the inclined strut is increased; vertical composite pile and diagonal brace are combined to form a triangular stable structure through the cushion layer, and the stability of the supporting structure is improved.
The resistance-increasing large-deformation intelligent enclosure structure is characterized by comprising an enlarged end, a precast pile, a stirring pile, a cushion layer, an enlarged bottom bag, an inclined pile connecting key, a yielding resistance-increasing device, a jack, a vertical pile connecting key, a yielding support, a data transmission line and a control center; the yielding pressure increasing resistor comprises an axial force monitor, a yielding pressure propeller, a yielding pressure receiver and an expanding support, and monitoring data of the axial force monitor is transmitted to the control center through a data transmission line; the yielding receiver comprises a receiver resistance increasing groove, a receiver side wall and a receiver cavity; the yielding propeller comprises a propeller main body rod, a propeller expanding rod and a propeller protrusion key; the yielding support comprises a support side wall, a buffer damper and a yielding layer; the upper end and the lower end of the buffer damper are provided with annular damper supports; the precast pile and the mixing pile are combined into a composite pile, and the composite pile comprises two arrangement forms, namely a vertical composite pile arranged on the side wall and an oblique composite pile arranged at the bottom of the foundation pit; the enlarged end is arranged at the top of the vertical composite pile and can effectively connect a plurality of precast piles and the stirring pile in the horizontal direction; the precast pile is arranged in the center of the mixing pile, and the diameter of the precast pile is smaller than that of the mixing pile; the vertical pile connecting key is connected with the enlarged end socket and the jack through bolts, a horizontal displacement sensor and a vertical displacement sensor are arranged in the vertical pile connecting key, and monitoring data of the horizontal displacement sensor and the vertical displacement sensor are transmitted to a control center through wireless signals; the jack is connected with the pressure yielding support through a bolt, the pressure yielding support is connected with the pressure yielding resistor through scarf joint, and the control center automatically controls the jack loading through a data transmission line; the inclined pile connecting key is connected with the precast pile and the yielding resistance increasing device through bolts, a horizontal displacement sensor and a vertical displacement sensor are arranged in the inclined pile connecting key, and monitoring data of the horizontal displacement sensor and the vertical displacement sensor are transmitted to a control center through wireless signals; the cushion layer is arranged at the bottom of the foundation pit and covers the surface of the oblique composite pile; the resistance increasing groove of the receiver is of a continuous annular concave structure, and the inner diameter of the cavity of the receiver is gradually reduced from one end of the enlarged support to the end far away from the enlarged support; the outer diameter of the side wall of the receiver is gradually increased from one end of the expanding support to the end far away from the expanding support; the propeller protruding key is of a semicircular convex structure, and the maximum diameter of the propeller protruding key is smaller than the maximum diameter of the receiver resistance-increasing groove and larger than the minimum diameter of the receiver resistance-increasing groove; the diameter of the propeller expanding rod is gradually increased from one end of the propeller main body rod to one end of the propeller protruding groove, and the maximum diameter of the propeller expanding rod is smaller than that of the propeller protruding key; the damping support at the upper part of the buffering damper is connected with the side wall of the support in a welding mode, the damping support at the lower part of the buffering damper is embedded in the inner wall of the side wall of the support, the damping support at the lower part of the buffering damper is of an annular structure, and the outer diameter of the damping support is smaller than the inner diameter of the side wall of the support.
Preferably, the compressive strength of the expanded end is not less than 30MPa, the compressive strength of the precast pile is not less than 60MPa, and the compressive strength of the stirring pile is not less than 0.5 MPa.
Preferably, the elastic modulus of the yielding propeller is larger than that of the resistance-increasing groove of the receiver.
Preferably, the pressure-yielding layer is of an annular compressible structure, and the inner diameter of the pressure-yielding layer is larger than the outer diameter of the smaller end of the side wall of the receiver and smaller than the outer diameter of the larger end of the side wall of the receiver.
Preferably, the expanding support is of an annular structure, and the outer diameter of the expanding support is larger than the inner diameter of the yielding layer and smaller than the inner diameter of the yielding support.
Preferably, the outer side of the expanded bottom bag is of a reinforced mesh bag-shaped structure, meshes of the expanded bottom bag are square, the side length range of the square is 2cm-10cm, stones are filled in the expanded bottom bag, and the size of the stones is not smaller than that of the meshes of the expanded bottom bag.
The utility model discloses the beneficial technological effect who brings:
the supporting rod of the traditional inclined throwing support is easy to try for buckling damage, the utility model divides the supporting rod into a plurality of sections, reduces the length of each section, and is provided with the yielding propeller and the yielding receiver, thereby increasing the length of the composite section of the supporting rod and improving the stability of the rod piece; through the large deformation of the rod piece and the arrangement of the jack, the dynamic adjustment can be carried out at any time according to the supporting condition of the foundation pit, so that the instability of the rod piece is avoided; by adopting the vertical composite piles as the fender piles, the construction period is shortened compared with the traditional cast-in-place piles, the inclined composite piles replace central islands, later construction is not influenced, the construction efficiency is improved, and the bottom of each inclined strut is provided with an enlarged bottom bag, so that the anchoring force of the inclined strut is increased; vertical composite pile and diagonal brace are combined to form a triangular stable structure through the cushion layer, and the stability of the supporting structure is improved.
Drawings
Fig. 1 is the utility model relates to a resistance-increasing large deformation intelligent envelope's among resistance-increasing large deformation intelligent envelope elevation.
Fig. 2 is the utility model relates to a let in among resistance-increasing large deformation intelligent envelope and press resistance-increasing machine's elevation view.
Fig. 3 is the utility model relates to a resistance-increasing large deformation intelligent envelope in let press the elevation view of receiver.
Fig. 4 is the utility model relates to a resistance-increasing large deformation intelligent envelope in let press the elevation view of propeller tip.
Fig. 5 is the utility model relates to a resistance-increasing large deformation intelligent envelope in let press the elevation view of eyelidretractor.
Fig. 6 is the utility model relates to a damping's among the intelligent envelope of resistance-increasing large deformation elevation.
Wherein: 1-enlarged end, 2-precast pile, 3-mixing pile, 4-cushion layer, 5-enlarged bottom bag, 6-inclined pile connecting key, 7-yielding pressure-increasing resistor, 8-jack, 9-vertical pile connecting key, 10-yielding pressure supporter, 11-yielding pressure propeller, 12-yielding pressure receiver, 13-axial force monitor, 14-enlarged support, 15-receiver resistance-increasing groove, 16-receiver side wall, 17-receiver cavity, 18-propeller main body rod, 19-propeller expansion rod, 20-propeller convex key, 21-support side wall, 22-buffer damping, 23-yielding pressure layer, 24-damping support, 25-data transmission line and 26-control center.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
example 1:
as shown in fig. 1 to 6, the resistance-increasing large-deformation intelligent enclosure structure is characterized by comprising an enlarged end 1, a precast pile 2, a mixing pile 3, a cushion layer 4, an enlarged bottom bag 5, an inclined pile connecting key 6, a yielding resistance-increasing device 7, a jack 8, a vertical pile connecting key 9, a yielding support 10, a data transmission line 25 and a control center 26; the yielding resistor 7 comprises an axial force monitor 13, a yielding propeller 11, a yielding receiver 12 and an expansion support 14, and monitoring data of the axial force monitor 13 is transmitted to a control center 26 through a data transmission line 25; the yielding receiver 12 comprises a receiver resistance-increasing groove 15, a receiver side wall and a receiver cavity 17; the yielding propeller 11 comprises a propeller main body rod 18, a propeller expanding rod 19 and a propeller protruding key 20; the yielding supporter 10 comprises a supporter side wall 21, a buffer damper 22 and a yielding layer 23; the upper end and the lower end of the buffer damper 22 are provided with annular damper supports 24; the precast pile 2 and the mixing pile 3 are combined into a composite pile, and the composite pile comprises two arrangement forms, namely a vertical composite pile arranged on the side wall and an oblique composite pile arranged at the bottom of the foundation pit; the enlarged end 1 is arranged at the top of the vertical composite pile, and the enlarged end 1 can effectively connect a plurality of precast piles 2 and stirring piles 3 in the horizontal direction; the precast pile 2 is arranged in the center of the mixing pile 3, and the diameter of the precast pile 2 is smaller than that of the mixing pile 3; the vertical pile connecting key 9 is connected with the enlarged end head 1 and the jack 8 through bolts, a horizontal displacement sensor and a vertical displacement sensor are arranged in the vertical pile connecting key 9, and monitoring data of the horizontal displacement sensor and the vertical displacement sensor are transmitted to the control center 26 through wireless signals; the jack 8 is connected with the yielding support 10 through a bolt, the yielding support 10 is connected with the yielding resistor-increasing device 7 through scarf joint, and the control center 26 automatically controls the loading of the jack 8 through a data transmission line 25; the inclined pile connecting key 6 is connected with the precast pile 2 and the yielding pressure resistor 7 through bolts, a horizontal displacement sensor and a vertical displacement sensor are arranged in the inclined pile connecting key 6, and monitoring data of the horizontal displacement sensor and the vertical displacement sensor are transmitted to a control center 26 through wireless signals; the cushion layer 4 is arranged at the bottom of the foundation pit and covers the surface of the oblique composite pile; the receiver resistance-increasing groove 15 is of a continuous annular concave structure, and the inner diameter of the receiver cavity 17 is gradually reduced from one end of the enlarged support 14 to the end far away from the enlarged support 14; the outer diameter of the receiver side wall 16 gradually increases from one end of the enlarged support 14 to the end far away from the enlarged support 14; the propeller protruding key 20 is of a semicircular convex structure, and the maximum diameter of the propeller protruding key 20 is smaller than the maximum diameter of the receiver resistance-increasing groove 15 and larger than the minimum diameter of the receiver resistance-increasing groove 15; the diameter of the propeller expanding rod 19 is gradually increased from one end of the propeller main body rod 18 to one end of the propeller protruding groove, and the maximum diameter of the propeller expanding rod 19 is smaller than that of the propeller protruding key 20; the damping support 24 at the upper part of the buffer damper 22 is connected with the support side wall 21 in a welding mode, the damping support 24 at the lower part of the buffer damper 22 is embedded in the inner wall of the support side wall 21, the damping support 24 at the lower part of the buffer damper 22 is of an annular structure, and the outer diameter of the damping support 24 is smaller than the inner diameter of the support side wall 21.
Preferably, the compressive strength of the enlarged end 1 is not less than 30MPa, the compressive strength of the precast pile 2 is not less than 60MPa, and the compressive strength of the stirring pile 3 is not less than 0.5 MPa.
Preferably, the modulus of elasticity of the crush thruster 11 is greater than the modulus of elasticity of the receiver resistance increasing groove 15.
Preferably, the pressure-letting layer 23 is an annular compressible structure, with the inner diameter of the pressure-letting layer 23 being larger than the outer diameter of the smaller end of the receiver side wall 16 and smaller than the outer diameter of the larger end of the receiver side wall 16.
Preferably, the enlarged support 14 is a ring structure, and the outer diameter of the enlarged support 14 is larger than the inner diameter of the crush initiator 23 and smaller than the inner diameter of the crush initiator 10.
Preferably, the outer side of the enlarged bottom bag 5 is of a reinforced mesh bag-shaped structure, the meshes of the enlarged bottom bag 5 are square, the side length range of the square is 2cm-10cm, stones are filled in the enlarged bottom bag 5, and the size of the stones is not smaller than that of the meshes of the enlarged bottom bag 5.
Example 2:
as shown in fig. 1 to 6, a method for using an intelligent envelope structure with increased resistance and large deformation is characterized by comprising the following steps:
step 1: installing and debugging the enclosure structure;
checking the data transmission reliability of the horizontal displacement sensor and the vertical displacement sensor, sending an instruction to the jack 8 through the control center 26, enabling the jack 8 to generate 1 t-2 t of supporting force, checking whether the monitoring data of the axial force monitor 13 changes at the moment, and performing next-step preloading if all the devices work normally;
step 2: calibrating the sensitivity of the building envelope;
before excavation of a foundation pit, grooving the two sides of the enlarged end 1 within the range of 0.5m, wherein the grooving depth is 0.5 m-1.0 m, applying jacking force to the expansion end 1 by adopting a hydraulic jack in a groove on the outer side of the foundation pit, wherein the magnitude of the jacking force is 2 t-10 t, the loading speed of the jacking force is divided into three grades of low, medium and high, the data of a horizontal displacement sensor and a vertical displacement sensor under different jacking forces and different loading speeds in unit time are sorted and converted, the relation between the jacking force and the loading speed and the sensitivity of the enclosure structure is determined, and the calculation formula of the sensitivity is R = (a X1+ b X2)/h, wherein R is sensitivity, X1 is a monitoring value of the horizontal displacement sensor, X2 is a monitoring value of the vertical displacement sensor, a is a horizontal displacement adjustment coefficient, b is a vertical displacement adjustment coefficient, and h is loading time; the displacement variation in unit time is positively correlated with the jacking force and the loading speed, and the relational expression is as follows: (a X1+ b X2)/h-F V, wherein F is a jacking force, and V is a loading speed;
and step 3: building a stress-deformation characteristic monitoring database in the preloading process of the enclosure structure;
sending an instruction to the jack 8 through the control center 26 to enable the jack 8 to generate 20% -80% of supporting force which can be provided by the jack 8 per se, adjusting a horizontal displacement adjustment coefficient a and a vertical displacement adjustment coefficient b according to different supporting positions in a supporting structure form, monitoring displacement in unit time by adopting a horizontal displacement sensor and a vertical displacement sensor, performing an orthogonal test according to two variables of supporting force and loading speed, and calculating sensitivities corresponding to different test results to form a corresponding relation database of the sensitivities and the supporting force and the loading speed;
and 4, step 4: carrying out a stress-deformation characteristic monitoring test in the pre-unloading process of the enclosure structure;
sending an instruction to the jack 8 through a control center 26 to enable the jack 8 to start unloading, wherein if a plurality of inclined struts exist in a foundation pit supporting project, the inclined struts are of a structure formed by all parts between a vertical pile connecting key 9 and an enlarged bottom bag 5, the adjacent inclined struts are unloaded asynchronously, particularly, the four inclined struts are adjacent, firstly unloading the jacking force of the jack 8 in the first inclined strut and the third inclined strut to 80% -90% of the original jacking force, then unloading the jacking force of the second inclined strut and the fourth inclined strut to 80% -90% of the original jacking force, then unloading the jacking force of the first inclined strut and the third inclined strut to 50% -80% of the original jacking force, then unloading the jacking force of the second inclined strut and the fourth inclined strut to 50% -90% of the original jacking force, and finally unloading the jacking force of the four inclined struts to zero at the same time;
and 5: intelligently adjusting the enclosure structure;
before excavation, firstly, the control center 26 sends an instruction to the jack 8, so that the supporting force applied by the jack 8 is 60% of the minimum resistance of the yielding thruster 11 to slide, the soil pressure born by the vertical composite pile gradually increases along with the increase of the excavation depth of the foundation pit, when the axial force value monitored by the axial force monitor is the same as the supporting force of the jack 8, the displacement of the horizontal displacement sensor and the vertical displacement sensor in unit time is monitored, according to different supporting positions in the supporting structure form, determining the horizontal displacement adjustment coefficient a and the vertical displacement adjustment coefficient b, further calculating the sensitivity, adjusting the working state of the jack 8 according to the sensitivity, the loading speed of the jack 8 is adjusted in time by utilizing the corresponding relation database of the sensitivity, the supporting force and the loading speed in the step 3 until the supporting force applied by the jack 8 is 100% of the minimum resistance for the yielding propeller 11 to slide; when the supporting force of the jack 8 reaches the minimum resistance of the pressure-yielding propeller 11 to slide, the pressure-yielding propeller 11 moves forward by a bulge, at the moment, the displacement of the horizontal displacement sensor and the vertical displacement sensor in unit time is monitored, the sensitivity is further calculated, the working state of the jack 8 is further adjusted according to the sensitivity, and the loading speed of the jack 8 is adjusted in time by utilizing the database of the corresponding relation between the sensitivity, the supporting force and the loading speed in the step 3 until the supporting force applied by the jack 8 is 100% of the minimum resistance of the pressure-yielding propeller 11 to slide; if the working state of the jack 8 is adjusted, the floating range of the axial force value monitored by the axial force monitor is not more than 2%, stopping the jack 8 from loading and keeping the current supporting force of the jack 8, if the floating range of the axial force value monitored by the axial force monitor is more than 2%, adjusting the loading speed of the jack 8 in real time according to the corresponding relation database of the sensitivity, the supporting force and the loading speed in the step 3, and increasing the jacking force of the jack 8 to the maximum jacking force of the jack 8 until the monitoring value of a horizontal displacement sensor built in the inclined pile connecting key 6 is 10 mm;
step 6: the enclosure structure automatically alarms;
in the winter construction process, the building envelope is greatly influenced by temperature change, when the temperature is lower than 0 ℃, the accumulated displacement of the horizontal displacement sensor and the vertical displacement sensor is suddenly changed or reduced, at the moment, the control center 26 can give an alarm and increase the jacking force of the jack 8; in the summer construction process, the building enclosure is greatly influenced by temperature change, when the temperature is lower than 35 ℃, the accumulated displacement of the horizontal displacement sensor and the vertical displacement sensor changes suddenly, and the control center 26 gives an alarm and reduces the jacking force of the jack 8;
and 7: unloading and dismantling the enclosure structure;
when the excavation of the foundation pit is finished and the cushion layer 4 is laid, the enclosure structure is removed until the construction of the bottom plate is finished, the bottom plate is laid in sections and regions, the inclined struts at the corresponding positions of the bottom plate are removed in advance, and the number of the removed adjacent inclined struts is not more than 3; and when the whole construction of the bottom plate is finished, all the inclined struts are dismantled.
Preferably, the loading speed of the jacking force in the step 2 is divided into three grades of low, medium and high, the three grades from low to high are respectively 0.5 t/min-1.0 t/min, 1.0 t/min-3.0 t/min and 3.0 t/min-5.0 t/min, and the acquisition frequency of the axial force monitor 13 is two to four times per hour.
Preferably, the interval between adjacent bulges on the yielding propeller 11 is 1.5 mm-2.5 mm, the minimum first-level resistance of the yielding propeller 11 for sliding is 20 t-30 t, the resistance increased relative to the previous bulge is 3 t-5 t when the yielding propeller 11 moves forward by one bulge, and the maximum jacking force of the jack 8 is 50 t-80 t.
Preferably, the maximum accumulated displacement of the horizontal displacement sensors in the vertical pile connecting key 9 and the inclined pile connecting key 6 is 20 mm-30 mm, and the maximum accumulated displacement of the vertical displacement sensors is 10 mm-30 mm.
The utility model relates to an increase intelligent envelope of hindering big deformation, the bracing piece of traditional oblique throwing brace is easy to try for taking place buckling destruction, the utility model divides the bracing piece into the multisection, has reduced the length of each section to set up and let and press the propeller and let and press the receiver, increased the length of the compound section of bracing piece, improved the stability of member; through the large deformation of the rod piece and the arrangement of the jack, the dynamic adjustment can be carried out at any time according to the supporting condition of the foundation pit, so that the instability of the rod piece is avoided; by adopting the vertical composite piles as the fender piles, the construction period is shortened compared with the traditional cast-in-place piles, the inclined composite piles replace central islands, later construction is not influenced, the construction efficiency is improved, and the bottom of each inclined strut is provided with an enlarged bottom bag, so that the anchoring force of the inclined strut is increased; vertical composite pile and diagonal brace are combined to form a triangular stable structure through the cushion layer, and the stability of the supporting structure is improved.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (6)
1. The resistance-increasing large-deformation intelligent enclosure structure is characterized by comprising an enlarged end, a precast pile, a stirring pile, a cushion layer, an enlarged bottom bag, an inclined pile connecting key, a yielding resistance-increasing device, a jack, a vertical pile connecting key, a yielding support, a data transmission line and a control center; the yielding pressure increasing resistor comprises an axial force monitor, a yielding pressure propeller, a yielding pressure receiver and an expanding support, and monitoring data of the axial force monitor is transmitted to the control center through a data transmission line; the yielding receiver comprises a receiver resistance increasing groove, a receiver side wall and a receiver cavity; the yielding propeller comprises a propeller main body rod, a propeller expanding rod and a propeller protrusion key; the yielding support comprises a support side wall, a buffer damper and a yielding layer; the upper end and the lower end of the buffer damper are provided with annular damper supports; the precast pile and the mixing pile are combined into a composite pile, and the composite pile comprises two arrangement forms, namely a vertical composite pile arranged on the side wall and an oblique composite pile arranged at the bottom of the foundation pit; the enlarged end is arranged at the top of the vertical composite pile and can effectively connect a plurality of precast piles and the stirring pile in the horizontal direction; the precast pile is arranged in the center of the mixing pile, and the diameter of the precast pile is smaller than that of the mixing pile; the vertical pile connecting key is connected with the enlarged end socket and the jack through bolts, a horizontal displacement sensor and a vertical displacement sensor are arranged in the vertical pile connecting key, and monitoring data of the horizontal displacement sensor and the vertical displacement sensor are transmitted to a control center through wireless signals; the jack is connected with the pressure yielding support through a bolt, the pressure yielding support is connected with the pressure yielding resistor through scarf joint, and the control center automatically controls the jack loading through a data transmission line; the inclined pile connecting key is connected with the precast pile and the yielding resistance increasing device through bolts, a horizontal displacement sensor and a vertical displacement sensor are arranged in the inclined pile connecting key, and monitoring data of the horizontal displacement sensor and the vertical displacement sensor are transmitted to a control center through wireless signals; the cushion layer is arranged at the bottom of the foundation pit and covers the surface of the oblique composite pile; the resistance increasing groove of the receiver is of a continuous annular concave structure, and the inner diameter of the cavity of the receiver is gradually reduced from one end of the enlarged support to the end far away from the enlarged support; the outer diameter of the side wall of the receiver is gradually increased from one end of the expanding support to the end far away from the expanding support; the propeller protruding key is of a semicircular convex structure, and the maximum diameter of the propeller protruding key is smaller than the maximum diameter of the receiver resistance-increasing groove and larger than the minimum diameter of the receiver resistance-increasing groove; the diameter of the propeller expanding rod is gradually increased from one end of the propeller main body rod to one end of the propeller protruding groove, and the maximum diameter of the propeller expanding rod is smaller than that of the propeller protruding key; the damping support at the upper part of the buffering damper is connected with the side wall of the support in a welding mode, the damping support at the lower part of the buffering damper is embedded in the inner wall of the side wall of the support, the damping support at the lower part of the buffering damper is of an annular structure, and the outer diameter of the damping support is smaller than the inner diameter of the side wall of the support.
2. The resistance-increasing large-deformation intelligent envelope structure as claimed in claim 1, wherein the compressive strength of the enlarged end is not less than 30MPa, the compressive strength of the precast pile is not less than 60MPa, and the compressive strength of the mixing pile is not less than 0.5 MPa.
3. The volume-increasing large-deformation intelligent building envelope according to claim 1, wherein the elastic modulus of the yielding thruster is larger than that of the resistance-increasing groove of the receiver.
4. The building envelope of claim 1, wherein the press layer is an annular compressible structure having an inner diameter larger than an outer diameter of the smaller end of the receiver sidewall and smaller than an outer diameter of the larger end of the receiver sidewall.
5. The volume-increasing large-deformation intelligent envelope structure as claimed in claim 1, wherein the enlarged support is an annular structure, and the outer diameter of the enlarged support is larger than the inner diameter of the yielding layer and smaller than the inner diameter of the yielding support.
6. The enclosure structure of claim 1, wherein the outside of the enlarged bottom bag is a steel mesh bag-shaped structure, the mesh of the enlarged bottom bag is square, the side length of the square ranges from 2cm to 10cm, and the inside of the enlarged bottom bag is filled with stones, and the size of the stones is not smaller than the mesh size of the enlarged bottom bag.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022451762.7U CN213805412U (en) | 2020-10-29 | 2020-10-29 | Resistance-increasing large-deformation intelligent enclosure structure |
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| CN202022451762.7U CN213805412U (en) | 2020-10-29 | 2020-10-29 | Resistance-increasing large-deformation intelligent enclosure structure |
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| CN213805412U true CN213805412U (en) | 2021-07-27 |
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