CN112376616B - Anti-settling structure of inspection well and construction method thereof - Google Patents

Abstract

The utility model relates to an inspection shaft prevents subsiding structure and construction method thereof, use in the field of inspection shaft, it includes the well body of burying underground in the pit and sets up the well lid in well body upper end, be provided with the foundation ring along the periphery on the lateral wall of well body, it has cup jointed the top seat circle to lie in the top of foundation ring on the lateral wall of well body, it has cup jointed a plurality of inner races to lie in between top seat circle and the foundation ring on the lateral wall of well body, the inside wall of top seat circle and a plurality of inner races all matches with the lateral wall of well body, between foundation ring and the adjacent inner race, all be provided with first elastic component between two adjacent inner races and between top seat circle and the adjacent inner race, the upper end of well body is provided with the fender ring along week side, set up the annular with fender ring matched with along the periphery on the top seat circle, the top surface of top seat circle flushes with the upper end of well body mutually. This application has the effect that makes the inspection shaft be difficult for subsiding and protect peripheral road.

Description

Anti-settling structure of inspection well and construction method thereof

Technical Field

The application relates to the field of inspection wells, in particular to an anti-settling structure of an inspection well and a construction method of the anti-settling structure.

Background

The inspection well is used for maintaining power supply, water drainage, pollution discharge, communication, cable television, gas pipes, street lamp lines and the like of urban underground infrastructure, and is convenient to install. It is usually installed at the intersection of pipelines, turning, where the pipe diameter or slope changes, and at certain intervals on straight pipeline sections, and is an auxiliary structure convenient for regular inspection.

The inspection shaft is because the particularity of mounted position, often receives people to trample or the vehicle rolls, under the effect of long-time live load, and its bearing structure is comparatively simple in addition, and is always in moist dark environment, and the ground bearing capacity is not enough, after the use of a period of time, the well body and the condition that the well lid sinks can often appear.

After the inspection well sinks, a height difference is formed between the inspection well and the peripheral pavement, so that the peripheral pavement is prone to collapse and unevenness, even cracks, and damages are caused to the road.

Disclosure of Invention

In order to solve the problem that the inspection well is easy to settle to cause road collapse and crack, the application provides an inspection well settlement preventing structure and a construction method thereof.

In a first aspect, the application provides an inspection well anti-settling structure, which adopts the following technical scheme:

an anti-settling structure of an inspection well comprises a well body buried in a well pit and a well cover arranged at the upper end of the well body, wherein a base ring is arranged on the outer side wall of the well body along the periphery, a top seat ring is sleeved above the base ring on the outer side wall of the well body, a plurality of inner races are sleeved between the top seat ring and the base ring on the outer side wall of the well body, the inner side walls of the top seat ring and the inner races are matched with the outer side wall of the well body, the top seat ring and the inner races slide on the well body along the axial direction of the well body, first elastic pieces are arranged between the base ring and the adjacent inner races, between the two adjacent inner races and between the top seat ring and the adjacent inner races, a baffle ring is arranged at the upper end of the well body along the peripheral side, and a ring groove matched with the baffle ring is arranged on the top seat ring along the periphery;

under the elastic action of the first elastic piece, the top seat ring is pushed to move upwards so that the baffle ring is embedded into the ring groove, and the top surface of the top seat ring is flush with the upper end of the well body.

By adopting the technical scheme, when the road surface around the inspection well is not subjected to dynamic load, the top seat ring is pushed to move upwards together under the action of the elastic force of the first elastic part so that the baffle ring is embedded into the annular groove, the top surface of the top seat ring is flush with the upper end of the well body at the moment, and the separation of the top seat ring from the upper end of the well body can be limited through the limit matching of the baffle ring and the annular groove; when the road surface around the inspection well is subjected to dynamic load, the top seat ring moves downwards after being subjected to pressure to compress the first elastic piece, and the pressure of the top seat ring can be weakened under the action of the elastic force of the first elastic piece, so that the influence of the upper pressure on the well body is reduced; after the dynamic load of the road surface around the inspection well disappears, the top seat ring is pushed to move upwards again under the action of the elastic force of the first elastic piece to be flush with the upper end of the well body. In the whole process, the first elastic piece supports the top seat ring all the time, so that the top seat ring can stably bear the pressure applied by the dynamic load of the road surface, and the influence of the pressure of the upper part on the well body is weakened, so that the well body is not easy to settle under the action of the long-time dynamic load on the road surface, and the peripheral road is prevented from collapsing and even cracking.

In addition, the structure that the first elastic parts are arranged between the multilayer inner races and the adjacent inner races improves the supporting effect of the top race on one hand, and compared with a single first elastic part, the multiple first elastic parts support the top race together, so that the effect is good, and the durability is long; on the other hand, the weakening effect on the upper pressure is improved, and the well body is protected and is not easy to settle.

Optionally, the first elastic member includes a cold-bending steel bar, the cold-bending steel bar is arranged between the base ring and the adjacent inner race, one end of the cold-bending steel bar is connected to the base ring, and the other end of the cold-bending steel bar is connected to the inner race;

one end of each cold-bending steel bar is connected to one inner race, and the other end of each cold-bending steel bar is connected to the other inner race;

one end of the cold-bending steel bar is connected to the top race, and the other end of the cold-bending steel bar is connected to the inner race.

By adopting the technical scheme, the cold-bending steel bars are arranged between the base ring and the adjacent inner race, and the inner race adjacent to the base ring is always pushed upwards under the elastic action of the cold-bending steel bars; the cold-bending reinforcing steel bars are arranged between the two adjacent inner races, and the two adjacent inner races are always pushed in the direction away from each other under the action of the elastic force of the cold-bending reinforcing steel bars; and the cold-bending reinforcing steel bars are arranged between the top race and the adjacent inner race, and the top race and the adjacent inner race are always pushed towards the direction away from each other under the elastic action of the cold-bending reinforcing steel bars, so that the top race is better supported, and the pressure on the upper part is weakened.

Optionally, the cold-bending reinforcing steel bar comprises an upward bending section and a downward bending section, a compression spring is arranged between the upward bending section and the downward bending section along the axial direction of the well body, one end of the compression spring is connected to the upward bending section, and the other end of the compression spring is connected to the downward bending section.

Through adopting above-mentioned technical scheme, under compression spring's elasticity effect, promote all the time and go up the turn section and strut towards the direction of keeping away from each other with the turn section to after the footstock circle receives road surface pressure and extrudees the clod wash reinforcing bar, reset through what compression spring can be better orders about the clod wash reinforcing bar, can't reset and the condition of inefficacy after reducing the clod wash reinforcing bar and using for a long time.

Optionally, the bent-up section and the bent-down section are located at positions of the compression spring and are provided with connecting seats, the two ends of the compression spring penetrate through the corresponding connecting seats, a steel sheath is sleeved on the outer side of the compression spring, soft sheaths are sleeved on the two ends of the outer side of the compression spring and are located at the two ends of the steel sheath, one end of each soft sheath is connected to the corresponding steel sheath, and the other end of each soft sheath is connected to the corresponding connecting seat.

Through adopting above-mentioned technical scheme, steel sheath and two soft sheaths protect and lead compression spring jointly to reduce compression spring and appear the distortion even winding condition in the course of the work.

Optionally, the outer diameters of the top race and the inner race are the same, the outer diameter of the base ring is larger than the outer diameters of the top race and the inner race, an outer shaft is sleeved outside the well body, the lower end of the outer shaft is fixed on the base ring, the upper end of the outer shaft is flush with the upper end of the well body, and the outer side walls of the top race and the inner races are matched with the inner side wall of the outer shaft.

By adopting the technical scheme, the outer shaft is used for blocking soil around the well body, so that the top seat ring, the inner race and the cold-bending steel bars can be operated in a relatively stable space, and the situation that the top seat ring and the inner race cannot slide on the well body due to the fact that the soil is blocked on the periphery of the well body is reduced.

Optionally, a support cylinder is sleeved outside the outer shaft, a gap is formed between the support cylinder and the outer shaft, the lower end of the support cylinder is lapped on the base ring, the outer side wall of the support cylinder is flush with the outer side wall of the base ring, a support plate is arranged at the upper end of the outer shaft along the periphery of the outer side wall, the top surface of the support plate is flush with the upper end of the outer shaft, the outer side wall of the support plate extends out of the upper end of the support cylinder and extends into a road foundation, and the upper end of the support cylinder is matched with the bottom surface of the support plate;

the supporting cylinder is formed by surrounding a plurality of ring plates, every two adjacent ring plates are connected through a flexible connecting piece, a second elastic piece is arranged between each ring plate and the outer shaft, and the ring plates are pushed to move towards the direction far away from the outer shaft under the elastic action of the second elastic pieces.

Through adopting above-mentioned technical scheme, under the elastic force effect of second elastic component, promote the ring plate that corresponds and remove towards the direction of keeping away from outer pit shaft to make the lateral pressure that the foundation produced to the well body can be resisted to the support section of thick bamboo that forms by a plurality of ring plate enclosures, and weaken lateral pressure, reduce the influence of lateral pressure to the well body, make the well body not fragile. And the lateral wall of the supporting plate extends out of the upper end of the supporting cylinder and extends into the road foundation, so that the integral bearing capacity of the well body is improved, and the possibility of sedimentation of the well body is reduced.

Optionally, the flexible connecting piece includes the flexible strip, the flexible strip is arranged in between two adjacent ring boards, the spread groove has all been seted up on the both sides wall of flexible strip towards two ring boards, the ring board lateral part is set in the spread groove that corresponds, wear to be equipped with the screw with ring board threaded connection on the flexible strip.

By adopting the technical scheme, the flexible strip is used for connecting the two adjacent ring plates, so that the two adjacent ring plates are in flexible connection, and the function that the ring plates can displace is realized; and the flexible strip can also seal the gap between two adjacent ring plates to prevent external soil from entering the supporting cylinder.

Optionally, the second elastic element includes an elastic steel sheet, one end of the elastic steel sheet is connected to the ring plate, and the other end of the elastic steel sheet is connected to the outer shaft.

Through adopting above-mentioned technical scheme, the elastic steel piece has the elasticity function, sets up between ring plate and outer pit shaft, because the rigidity of outer pit shaft is unchangeable to promote the ring plate all the time and remove towards the direction of keeping away from outer pit shaft.

Optionally, the backup pad includes upper backup pad and lower floor's backup pad, it is equipped with the blotter to press from both sides between upper backup pad and the lower floor's backup pad.

Through adopting above-mentioned technical scheme, the blotter of setting can weaken the pressure of applying in the backup pad to reduce the influence of upper portion pressure to a support section of thick bamboo and outer pit shaft, and then reduce the influence to the well body, the protection well body makes the well body not fragile.

In a second aspect, the application provides a construction method of an inspection well anti-settlement structure, which adopts the following technical scheme:

a construction method of an inspection well anti-settling structure comprises the following steps:

step S1: excavating a first well pit, wherein the diameter of the first well pit is the same as that of the base ring, and the depth of the first well pit is the same as the length of the well body on the upper part of the base ring;

step S2: excavating a second well pit on the bottom of the first well pit, enabling the diameter of the second well pit to be the same as that of the well body, enabling the depth of the second well pit to be the same as the length of the well body located at the lower part of the base ring, and meanwhile keeping the second well pit and the first well pit coaxially arranged;

step S3: placing the prefabricated well body and the well body anti-settling structure into a first well pit and a second well pit, so that the part of the well body, which is positioned at the lower part of a base ring, is placed into the second well pit, the bottom wall of the well body is placed on the pit bottom of the second well pit, the outer side wall of the well body is attached to the side wall of the second well pit, the base ring is placed on the pit bottom of the first well pit, and the outer side wall of the base ring and the outer side wall of a supporting cylinder are attached to the side wall of the first well pit;

step S4: and covering the upper end of the well body with a well cover, and then in the process of paving the road, fixing the part of the support plate extending into the road foundation into a whole with the road to finish the construction of the anti-settling structure of the well body and the well body.

By adopting the technical scheme, the base ring is arranged on the bottom of the first well pit, so that the whole well body can be supported, the bearing capacity of the well body is increased, and the well body is less prone to sedimentation; the outer side wall of the base ring and the outer side wall of the supporting cylinder are attached to the side wall of the first well pit, so that the side wall of the first well pit can be supported, and the collapse of the first well pit is reduced; and the part of the supporting plate extending into the road foundation is fixed with the road into a whole, so that the bearing capacity of the well body can be further improved, and the possibility of well body settlement is further reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the road surface around the inspection well is subjected to dynamic load, the top seat ring moves downwards to compress the cold-bending reinforcing steel bars after being subjected to pressure, and the pressure of the top seat ring can be weakened under the elastic action of the cold-bending reinforcing steel bars, so that the influence of the pressure at the upper part on the well body is reduced, after the dynamic load of the road surface around the inspection well disappears, the cold-bending reinforcing steel bars push the top seat ring to move upwards again for resetting, and in the whole process, the well body is not easy to settle, and the influence of collapse and even cracking of the surrounding road is avoided;

2. under the elastic force action of the compression spring, the upward bending section and the downward bending section are pushed to be unfolded towards the direction away from each other all the time, so that after the top seat ring is pressed by road surface pressure to extrude the cold-bent reinforcing steel bar, the cold-bent reinforcing steel bar can be better driven to reset through the compression spring, and the condition that the cold-bent reinforcing steel bar cannot reset and fails after being used for a long time is reduced;

3. under the elastic force effect of elastic steel sheet, promote the ring board and remove towards the direction of keeping away from outer pit shaft to make the lateral pressure that the foundation produced to the well body can be resisted to the supporting cylinder of establishing by a plurality of ring boards are enclosed, and weaken lateral pressure, reduce the influence of lateral pressure to the well body, make the well body not fragile.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an exploded view of the overall structure of an embodiment of the present application.

Fig. 3 is a schematic structural diagram for embodying a compression spring according to an embodiment of the present application.

Fig. 4 is an enlarged view of a portion a in fig. 2.

Fig. 5 is an enlarged view of a portion B in fig. 2.

Reference numerals: 11. a well body; 12. a well cover; 13. a top race; 131. a ring groove; 14. an inner race; 15. a base ring; 16. a baffle ring; 17. cold bending the steel bars; 171. an upward bending section; 172. a downward bending section; 18. a compression spring; 19. a connecting seat; 20. a steel sheath; 21. a soft sheath; 22. an outer wellbore; 23. a support cylinder; 231. a ring plate; 232. a flexible strip; 2321. connecting grooves; 24. a support plate; 241. an upper layer supporting plate; 242. a lower supporting plate; 25. a screw; 26. an elastic steel sheet; 27. a cushion pad.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses inspection shaft anti-settlement structure.

Referring to fig. 1, the structure is prevented subsiding by inspection shaft is including burying the well body 11 in the pit underground and setting up in the well lid 12 that 11 upper ends of well bodies are used for sealing the well head, and the well body 11 is inside hollow cylindric, and the well body 11 is made by inside steel bar outer concreting with well lid 12.

Referring to fig. 2, a base ring 15 is fixedly connected to the outer side wall of the well body 11 along the periphery, the base ring 15 is located at the middle lower part of the well body 11, the ratio of the length of the base ring 15 from the upper end of the well body 11 to the length of the base ring 15 from the lower end of the well body 11 is 3:2, a top seat ring 13 is sleeved above the base ring 15 on the outer side wall of the well body 11, the inner side wall of the top seat ring 13 is matched with the outer side wall of the well body 11, and the top seat ring 13 can slide on the well body 11 along the axial direction of the well body 11; keep off ring 16 along self lateral wall periphery fixedly connected with in the upper end of well body 11, top seat circle 13 is gone up to offer along the periphery with keeping off ring 16 matched with annular 131, moves up to well body 11 upper end when top seat circle 13 for keep off when ring 16 imbeds in the annular 131, the top surface of top seat circle 13 flushes mutually with the upper end of well body 11 this moment, and has restricted top seat circle 13 and has broken away from well body 11 upper end.

Referring to fig. 2, a plurality of inner races 14 are further sleeved on the outer side wall of the well body 11 between the top race 13 and the base race 15, in this embodiment, the number of the inner races 14 is three, the inner side wall of the inner race 14 is also matched with the outer side wall of the well body 11, and the inner race 14 can also slide on the well body 11 along the axial direction of the well body 11. The outer diameters of the top race 13 and the inner race 14 are the same, and the outer diameter of the base ring 15 is larger than the outer diameters of the top race 13 and the inner race 14.

Referring to fig. 2, first elastic members are disposed between the base ring 15 and the adjacent inner race 14, between the two adjacent inner races 14, and between the top race 13 and the adjacent inner race 14, each of the first elastic members includes a cold-bending reinforcing bar 17, the cold-bending reinforcing bar 17 is formed by cold-bending a reinforcing bar through a cold-bending process, that is, the reinforcing bar is bent at a certain angle to form the cold-bending reinforcing bar 17, the cold-bending reinforcing bar 17 includes an upper bent section 171 and a lower bent section 172, and after the cold-bending reinforcing bar 17 is compressed, the cold-bending reinforcing bar has a certain elastic force, and the upper bent section 171 and the lower bent section 172 have a tendency of opening in a direction away from each other.

Referring to fig. 2, in the present embodiment, the number of the cold-bending reinforcing bars 17 between the base ring 15 and the adjacent inner race 14, between the adjacent two inner races 14, and between the top race 13 and the adjacent inner race 14 is three, and the three cold-bending reinforcing bars 17 are uniformly distributed along the circumferential side of the well body 11. One end of a cold bending steel bar 17 between the base ring 15 and the adjacent inner race 14 is fixedly connected to the base ring 15, and the other end of the cold bending steel bar is fixedly connected to the inner race 14; a cold-bending steel bar 17 between two adjacent inner races 14, one end of which is fixedly connected to one inner race 14, and the other end of which is fixedly connected to the other inner race 14; the cold-bending reinforcing steel bars 17 between the top race 13 and the adjacent inner race 14 are fixedly connected to the top race 13 at one end and to the inner race 14 at the other end. And both ends of each of the cold-bent reinforcing bars 17 are positioned on the same vertical line.

Referring to fig. 2, in the initial state, under the combined action of the elastic forces of the cold-bending steel bars 17, the top seat ring 13 is pushed to move upwards to be flush with the upper end of the well body 11; when the road surface around the inspection well is subjected to dynamic load, the top seat ring 13 moves downwards after being subjected to pressure to compress the cold-bending reinforcing steel bars 17, and the pressure of the top seat ring 13 can be weakened under the action of the elastic force of the cold-bending reinforcing steel bars 17, so that the influence of the upper pressure on the well body 11 is reduced; and after the dynamic load of the road surface around the well to be inspected disappears, the top seat ring 13 is pushed to move upwards again under the action of the elastic force of the cold bending steel bars 17 to be flush with the upper end of the well body 11. In the whole process, the top seat ring 13 is supported by the combined action of the cold bending steel bars 17, so that the top seat ring 13 can stably bear the pressure applied by the dynamic load of the road surface, and the influence of the pressure of the upper part on the well body 11 is weakened, so that the well body 11 is not easy to settle due to the fact that the road surface is under the action of the long-time dynamic load, and further the influence of collapse and even cracking of the peripheral road is avoided.

Referring to fig. 2 and 3, a compression spring 18 is arranged between the upward bending section 171 and the downward bending section 172 of each cold-bending reinforcing steel bar 17, the compression spring 18 is arranged along the axial direction of the well body 11, one end of the compression spring 18 is fixedly connected to the upward bending section 171, the other end of the compression spring 18 is fixedly connected to the downward bending section 172, and under the elastic force action of the compression spring 18, the upward bending section 171 and the downward bending section 172 are always pushed to be spread in the directions away from each other, so that after the top seat ring 13 is compressed by road surface pressure, the cold-bending reinforcing steel bars 17 can be better driven to reset through the compression spring 18, and the situation that the cold-bending reinforcing steel bars 17 cannot reset and fail after long-term use is reduced.

Referring to fig. 2 and 3, at last bend section 171 and bend section 172 and be located the equal fixedly connected with connecting seat 19 of position department of clod wash reinforcing bar 17 down, corresponding connecting seat 19 is worn to establish at compression spring 18's both ends, the cover is equipped with steel sheath 20 in compression spring 18's the outside, and the both ends that are located steel sheath 20 in compression spring 18 all overlap and are equipped with soft sheath 21, soft sheath 21 adopts the rubber material, the one end fixed connection of soft sheath 21 is on steel sheath 20, other end fixed connection is on the connecting seat 19 that corresponds. The steel sheath 20 and the two soft sheaths 21 are sleeved on the outer side of the compression spring 18 to jointly protect and guide the compression spring 18, so that the situation that the compression spring 18 is twisted or even wound in the working process is reduced.

Referring to fig. 2, an outer shaft 22 is sleeved outside the well body 11, the outer shaft 22 is coaxially arranged with the well body 11, the lower end of the outer shaft 22 is fixedly connected to the base ring 15, the upper end of the outer shaft 22 is flush with the upper end of the well body 11, the outer side walls of the top seat ring 13 and the three inner races 14 are matched with the inner side walls of the outer shaft 22, so that soil around the well body 11 can be blocked by the outer shaft 22 without affecting the sliding of the top seat ring 13 and the three inner races 14 on the well body 11, and the top seat ring 13, the inner races 14 and the cold bending steel bars 17 can be operated in a relatively stable space, so as to reduce the situation that the soil blocks the periphery of the well body 11 and the top seat ring 13 and the inner races 14 cannot slide on the well body 11.

Referring to fig. 2, a supporting cylinder 23 is sleeved outside the outer shaft 22, a certain distance is provided between the supporting cylinder 23 and the outer shaft 22, the supporting cylinder 23 and the outer shaft 22 are coaxially arranged, the lower end of the supporting cylinder 23 is arranged on the base ring 15, the whole supporting cylinder 23 is supported by the base ring 15, the outer side wall of the supporting cylinder 23 is flush with the outer side wall of the base ring 15, the upper end of the supporting cylinder 23 is lower than the upper end of the outer shaft 22, a supporting plate 24 is fixedly connected to the upper end of the outer shaft 22 along the periphery of the outer side wall, the top surface of the supporting plate 24 is flush with the upper end of the outer shaft 22, the supporting plate 24 horizontally extends towards the direction far away from the outer shaft 22 to the periphery, and the upper end of the supporting cylinder 23 is matched with the bottom surface of the supporting plate 24.

Referring to fig. 2, the outer side wall of the supporting plate 24 horizontally extends out of the upper end of the supporting cylinder 23 and into the road foundation, so that the bearing capacity of the whole well body 11 is improved, and the possibility of settlement of the well body 11 is reduced.

Referring to fig. 4, the supporting plate 24 includes an upper supporting plate 241 and a lower supporting plate 242, a gap is formed between the upper supporting plate 241 and the lower supporting plate 242, a buffer pad 27 is embedded in the gap, the buffer pad 27 is made of rubber, has good elastic buffering performance, and can weaken the pressure applied to the supporting plate 24, so as to reduce the influence of the upper pressure on the supporting cylinder 23 and the outer shaft 22, further reduce the influence on the well body 11, and protect the well body 11 to prevent the well body 11 from being damaged easily.

Referring to fig. 2, the supporting cylinder 23 is formed by enclosing a plurality of arc-shaped ring plates 231, in this embodiment, the number of the ring plates 231 is four, the four ring plates 231 have the same size, a gap is formed between two adjacent ring plates 231, and a flexible connecting member is disposed in the gap between two adjacent ring plates 231 to connect the two adjacent ring plates 231.

Referring to fig. 5, the flexible connection member includes a flexible strip 232, the flexible strip 232 is disposed between two adjacent ring plates 231, and the flexible strip 232 is made of rubber, the flexible strip 232 has connection grooves 2321 both opened along the length direction of the flexible strip 232 on both side walls of the two ring plates 231, the side portion of one ring plate 231 is embedded in the connection groove 2321 on one side of the flexible strip 232, the side portion of the other ring plate 231 is embedded in the connection groove 2321 on the other side of the flexible strip 232, and a screw 25 in threaded connection with the ring plate 231 is arranged on the flexible strip 232 in a penetrating manner, so that the flexible strip 232 and the ring plate 231 can be fixed, and then the two adjacent ring plates 231 are fixed, and the two adjacent ring plates 231 are in flexible connection, and simultaneously, the gap between the two adjacent ring plates 231 can be sealed, so as to block external soil from entering the support cylinder 23.

Referring to fig. 2, a second elastic member is disposed between each ring plate 231 and the outer shaft 22, the number of the second elastic members between each ring plate 231 and the outer shaft 22 is three, and the three second elastic members are uniformly distributed in the vertical direction. The second elastic component includes elastic steel sheet 26, elastic steel sheet 26 is formed by bending the steel sheet into certain angle, elastic steel sheet 26's one end fixed connection is on ring plate 231, other end fixed connection is on outer pit shaft 22, elastic steel sheet 26 has the elasticity function, can promote corresponding ring plate 231 and remove towards the direction of keeping away from outer pit shaft 22, thereby make and enclose the lateral pressure that establishes the support section of thick bamboo 23 that forms by four ring plates 231 and can resist ground base to well body 11 production, and weaken lateral pressure, reduce the influence of lateral pressure to well body 11, make well body 11 not fragile.

The implementation principle of the anti-settling structure of the inspection well in the embodiment of the application is as follows: in the initial state, under the action of the elastic force of the cold-bending steel bars 17, the top seat ring 13 is pushed to move upwards to be flush with the upper end of the well body 11; when the road surface around the inspection well is subjected to dynamic load, the top seat ring 13 moves downwards after being subjected to pressure to compress the cold-bending reinforcing steel bars 17, and the pressure of the top seat ring 13 can be weakened under the action of the elastic force of the cold-bending reinforcing steel bars 17, so that the influence of the upper pressure on the well body 11 is reduced; and after the dynamic load of the road surface around the well to be inspected disappears, the top seat ring 13 is pushed to move upwards again under the action of the elastic force of the cold bending steel bars 17 to be flush with the upper end of the well body 11.

When the foundation generates lateral pressure on the well body 11, the supporting cylinders 23 are pressed, and under the action of the elastic force of the elastic steel sheets 26, the corresponding ring plates 231 can be pushed to move towards the direction away from the outer well bore 22, so that the supporting cylinders 23 surrounded by the four ring plates 231 can resist the lateral pressure generated by the foundation on the well body 11, the lateral pressure is weakened, and the influence of the lateral pressure on the well body 11 is reduced.

The embodiment of the application also discloses a construction method of the inspection well anti-sedimentation structure, which comprises the following steps:

step S1: excavating a first well pit, wherein the diameter of the first well pit is the same as that of the base ring 15, and the depth of the first well pit is the same as the length of the well body 11 on the upper part of the base ring 15;

step S2: excavating a second well pit on the bottom of the first well pit, enabling the diameter of the second well pit to be the same as that of the well body 11, enabling the depth of the second well pit to be the same as that of the well body 11 at the lower part of the base ring 15, and meanwhile keeping the second well pit and the first well pit coaxially arranged;

step S3: placing the well body 11 and the anti-settling structure of the well body 11 which are prefabricated in a first well pit and a second well pit, placing the part of the well body 11, which is positioned at the lower part of the base ring 15, in the second well pit, placing the bottom wall of the well body 11 on the pit bottom of the second well pit, attaching the outer side wall of the well body 11 to the side wall of the second well pit, placing the base ring 15 on the pit bottom of the first well pit, and attaching the outer side wall of the base ring 15 and the outer side wall of the supporting cylinder 23 to the side wall of the first well pit;

step S4: the upper end of the well body 11 is covered with the well cover 12, and then in the process of paving the road, the part of the support plate 24 extending into the road foundation is fixed with the road into a whole, so that the construction of the well body 11 and the anti-settling structure of the well body 11 is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an inspection shaft anti-settling structure which characterized in that: the anti-theft well comprises a well body (11) buried in a well pit and a well cover (12) arranged at the upper end of the well body (11), wherein a base ring (15) is arranged on the outer side wall of the well body (11) along the periphery, a top seat ring (13) is sleeved above the base ring (15) on the outer side wall of the well body (11), a plurality of inner races (14) are sleeved between the top seat ring (13) and the base ring (15) on the outer side wall of the well body (11), the inner side walls of the top seat ring (13) and the inner races (14) are matched with the outer side wall of the well body (11), the top seat ring (13) and the inner races (14) slide on the well body (11) along the axial direction of the well body (11), first elastic pieces are arranged between the base ring (15) and the adjacent inner races (14), between the two adjacent inner races (14) and between the top seat ring (13) and the adjacent inner races (14), a baffle ring (16) is arranged on the upper end of the well body (11) along the peripheral side, and a ring groove (131) matched with the baffle ring (16) is formed on the top seat ring (13) along the peripheral edge;

under the action of the elastic force of the first elastic piece, the top seat ring (13) is pushed to move upwards, so that the baffle ring (16) is embedded into the ring groove (131), and the top surface of the top seat ring (13) is flush with the upper end of the well body (11);

the first elastic piece comprises a cold-bending reinforcing steel bar (17), the cold-bending reinforcing steel bar (17) is arranged between the base ring (15) and the adjacent inner race (14), one end of the cold-bending reinforcing steel bar (17) is connected to the base ring (15), and the other end of the cold-bending reinforcing steel bar (17) is connected to the inner race (14);

cold-bending reinforcing steel bars (17) between two adjacent inner races (14), wherein one end of each cold-bending reinforcing steel bar (17) is connected to one inner race (14), and the other end of each cold-bending reinforcing steel bar (17) is connected to the other inner race (14);

cold-bending steel bars (17) between the top race (13) and the adjacent inner race (14), wherein one end of each cold-bending steel bar (17) is connected to the top race (13), and the other end of each cold-bending steel bar (17) is connected to the inner race (14);

the cold-bending reinforcing steel bar (17) comprises an upward bending section (171) and a downward bending section (172), a compression spring (18) is arranged between the upward bending section (171) and the downward bending section (172) along the axial direction of the well body (11), one end of the compression spring (18) is connected to the upward bending section (171), and the other end of the compression spring (18) is connected to the downward bending section (172).

2. The manhole anti-settling structure according to claim 1, wherein: go up bent section (171) and the position department that bent section (172) is located compression spring (18) down and all be provided with connecting seat (19), corresponding connecting seat (19) are worn to establish at the both ends of compression spring (18), the outside cover of compression spring (18) is equipped with steel sheath (20), the both ends that the outside of compression spring (18) is located steel sheath (20) all are equipped with soft sheath (21), the one end of soft sheath (21) is connected on steel sheath (20), the other end of soft sheath (21) is connected on corresponding connecting seat (19).

3. The manhole anti-settling structure according to claim 1, wherein: the outer diameter of top seat circle (13) and inner race (14) is the same, just the outer diameter of base ring (15) is greater than the outer diameter of top seat circle (13) and inner race (14), the outside cover of well body (11) is equipped with outer pit shaft (22), the lower extreme of outer pit shaft (22) is fixed in on base ring (15), the upper end of outer pit shaft (22) flushes mutually with the upper end of well body (11), top seat circle (13) and a plurality of the lateral wall of inner race (14) and the inside wall phase-match of outer pit shaft (22).

4. The manhole anti-settling structure according to claim 3, wherein: a supporting cylinder (23) is sleeved on the outer side of the outer shaft (22), a distance is reserved between the supporting cylinder (23) and the outer shaft (22), the lower end of the supporting cylinder (23) is lapped on the base ring (15), the outer side wall of the supporting cylinder (23) is flush with the outer side wall of the base ring (15), a supporting plate (24) is arranged at the upper end of the outer shaft (22) along the periphery of the outer side wall, the top surface of the supporting plate (24) is flush with the upper end of the outer shaft (22), the outer side wall of the supporting plate (24) extends out of the upper end of the supporting cylinder (23) and extends into a road foundation, and the upper end of the supporting cylinder (23) is matched with the bottom surface of the supporting plate (24);

the supporting cylinder (23) is formed by enclosing a plurality of ring plates (231), every two adjacent ring plates (231) are connected through a flexible connecting piece, second elastic pieces are arranged between the ring plates (231) and the outer shaft (22), and under the elastic force action of the second elastic pieces, the ring plates (231) are pushed to move towards the direction away from the outer shaft (22).

5. The manhole anti-settling structure according to claim 4, wherein: the flexible connecting piece includes flexible strip (232), flexible strip (232) are arranged in between two adjacent ring plates (231), spread groove (2321) have all been seted up on the both sides wall of flexible strip (232) orientation two ring plates (231), ring plate (231) lateral part inlays in corresponding spread groove (2321), wear to be equipped with on flexible strip (232) with ring plate (231) threaded connection's screw (25).

6. The manhole anti-settling structure according to claim 4, wherein: the second elastic piece comprises an elastic steel piece (26), one end of the elastic steel piece (26) is connected to the annular plate (231), and the other end of the elastic steel piece (26) is connected to the outer shaft (22).

7. The manhole anti-settling structure according to claim 4, wherein: the supporting plate (24) comprises an upper supporting plate (241) and a lower supporting plate (242), and a buffer pad (27) is clamped between the upper supporting plate (241) and the lower supporting plate (242).

8. The construction method of the manhole anti-settling structure according to any one of claims 1 to 7, wherein: the method comprises the following steps:

step S1: excavating a first well pit, wherein the diameter of the first well pit is the same as that of the base ring (15), and the depth of the first well pit is the same as the length of the well body (11) on the upper part of the base ring (15);

step S2: excavating a second well pit on the bottom of the first well pit, enabling the diameter of the second well pit to be the same as that of the well body (11), enabling the depth of the second well pit to be the same as that of the well body (11) at the lower part of the base ring (15), and meanwhile keeping the second well pit and the first well pit coaxially arranged;

step S3: placing the well body (11) and the anti-settling structure of the well body (11) which are prefabricated in a first well pit and a second well pit, placing the part of the well body (11) positioned at the lower part of a base ring (15) in the second well pit, placing the bottom wall of the well body (11) on the bottom of the second well pit, attaching the outer side wall of the well body (11) on the side wall of the second well pit, placing the base ring (15) on the bottom of the first well pit, and attaching the outer side wall of the base ring (15) and the outer side wall of a support cylinder (23) on the side wall of the first well pit;

step S4: the upper end of the well body (11) is covered with the well cover (12), and then in the process of paving the road, the part of the support plate (24) extending into the road foundation is fixed with the road into a whole, so that the construction of the well body (11) and the anti-sedimentation structure of the well body (11) is completed.

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