CN218952225U - Prefabricated sunk well tenon mouth structure - Google Patents

Abstract

The utility model relates to the technical field of municipal engineering, in particular to a prefabricated sunk well tenon structure, which comprises an outer tenon and an inner tenon, wherein the outer tenon and the inner tenon are respectively arranged at the top end and the bottom end of a sunk well, the outer tenon and the inner tenon have the same specification, a plurality of tenon grooves are respectively arranged on the outer tenon and the inner tenon, and a rubber ring is sleeved on one of the tenon grooves in the outer tenon and the inner tenon; the pre-grouting assembly is arranged at the inner tenon opening position; the utility model uses a pretreatment mode, has the water seepage phenomenon at the later stage, can carry out grouting reinforcement through the reserved grouting holes, improves the waterproof performance, and avoids secondary damage to the open caisson structure caused by the water-proof problem of the later stage treatment.

Description

Prefabricated sunk well tenon mouth structure

Technical Field

The utility model relates to the technical field of municipal engineering, in particular to a prefabricated sunk well tenon structure.

Background

The open caisson in the municipal engineering field is in a common structural form and is used for the conditions of a top pipe well, a top pipe pulling well, a pump station foundation pit and the like. Is often positioned below the ground and even below the ground water level, has larger water pressure and has high requirements for water seepage prevention measures of the open caisson.

In the prior art, the following problems exist:

the junction of the open caisson is a waterproof weak point of the open caisson, in the process of not discharging the prefabricated open caisson to sink under water, due to complex geological conditions, the sinking difficulty of the open caisson is high, when external force is applied to assist in sinking, the prefabricated open caisson interface mortar is insufficient in strength, the interface rubber ring is damaged, and the like, the open caisson is seriously leaked, the problem restricts the cast-in-situ open caisson to change into a prefabricated open caisson process, and under the condition of considering the same technical level and fund investment, the waterproof effect of the prefabricated open caisson interface is required to be considered to overtake the waterproof effect of the cast-in-situ open caisson.

Disclosure of Invention

The utility model aims to provide a prefabricated sunk well tenon structure so as to solve the problems in the prior art.

The technical scheme of the utility model is as follows: the prefabricated sunk well tenon structure comprises an outer tenon and an inner tenon, wherein the outer tenon and the inner tenon are respectively arranged at the top end and the bottom end of the sunk well, the outer tenon and the inner tenon are identical in specification, a plurality of tenon grooves are respectively arranged on the outer tenon and the inner tenon, and a rubber ring is respectively sleeved on one of the tenon grooves in the outer tenon and the inner tenon;

and the pre-grouting assembly is arranged at the inner tenon opening position.

Preferably, two rubber rings are arranged in a staggered manner.

Preferably, the pre-grouting assembly comprises a grouting hole formed in the position of the inner tenon opening, and the grouting hole is horizontally arranged.

Preferably, the end part of the grouting hole is clamped with an external force pipe plug.

Preferably, the outside area of the external force pipe plug is provided with plain concrete.

Compared with the prior art, the prefabricated sunk well tenon structure provided by the utility model has the following improvement and advantages:

the method comprises the following steps: the joint adopts a mortice structure commonly used in a wooden structure, the well wall connection operation is simple and convenient to install, the construction is quick, the defect of weak waterproof capability of the prefabricated open caisson is overcome, the application range of the prefabricated open caisson is improved, the prefabricated open caisson mortice structure has certain safety and stability, and the quality and the process safety of the finished open caisson construction product are better improved;

and two,: according to the utility model, the water seepage prevention capability of the open caisson is improved under the condition that the total investment is basically unchanged, the cost of secondary repair treatment due to the water seepage problem is reduced, meanwhile, the installation speed can be increased, the construction period is shortened, and the construction period benefit is obtained;

and thirdly,: the utility model is applied to the situations that the underground water level is rich, the sinking of the sinking well is difficult, the water seepage prevention requirement is high and the prefabrication mode is adopted at the sinking well position, the water seepage prevention requirement at the prefabricated sinking well interface is obviously improved under the condition that the existing structure quality safety is not influenced, the construction and the operation of the sinking well are not influenced by water seepage, the construction progress is better accelerated and the operation cost is reduced.

Drawings

The utility model is further explained below with reference to the drawings and examples:

FIG. 1 is a schematic view of the structure of the present utility model in use;

FIG. 2 is a schematic view of the external dovetail construction of the present utility model;

FIG. 3 is a schematic view of the dovetail construction of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

Reference numerals illustrate:

1. an outer mortise; 2. an inner mortise; 3. a mortise groove; 4. grouting holes; 5. plain concrete; 6. external force pipe plug; 7. a rubber ring.

Detailed Description

The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a prefabricated sunk well tenon structure through improvement, and the technical scheme of the utility model is as follows:

as shown in fig. 1-4, the prefabricated sunk well tenon structure comprises an outer tenon 1 and an inner tenon 2, wherein the outer tenon 1 and the inner tenon 2 are respectively arranged at the top end and the bottom end of the sunk well, the outer tenon 1 and the inner tenon 2 are identical in specification, a plurality of tenon grooves 3 are respectively arranged on the outer tenon 1 and the inner tenon 2, rubber rings 7 are respectively sleeved on one of the tenon grooves 3 in the outer tenon 1 and the inner tenon 2, the outer tenon 1 and the inner tenon 2 are aligned for self-locking installation by hoisting another sunk well, meanwhile, the primary sealing treatment of the joint of the two sunk wells can be realized by means of the arranged outer tenon 1 and the inner tenon 2, and on the other hand, the rubber rings 7 are not directly subjected to longitudinal extrusion, so that plastic permanent deformation of the rubber rings 7 is avoided due to uneven sedimentation of the sunk well, and the waterproof performance of the whole interface structure is reduced; also comprises;

and the pre-grouting assembly is arranged at the position of the inner rabbet 2.

Further, two rubber rings 7 are arranged in a staggered manner.

Further, the pre-grouting assembly comprises a grouting hole 4 formed in the position of the inner rabbet 2, and the grouting hole 4 is horizontally arranged.

Further, the end part of the grouting hole 4 is clamped with an external force pipe plug 6; through above-mentioned structure, utilize to leave the pretreatment methods, later stage has the infiltration phenomenon, and the slip casting reinforcement is carried out to the slip casting hole 4 of accessible reservation, promotes waterproof performance, avoids the waterproof problem of post treatment to cause secondary damage to the open caisson structure.

Further, the outside area of the external force pipe plug 6 is provided with plain concrete 5; the concrete 5 is specifically C15 concrete, and the reserved grouting holes 4 can be well protected by using the arranged concrete 5.

It should be noted that: before the prefabricated sunk well tenon is constructed, the proper arched tenon size is matched according to the sunk well size; meanwhile, the position, elevation and water quantity of existing underground water are fully researched, a proper reserved position of a grouting hole 4 is formulated, the same open caisson is prefabricated in the same batch as much as possible in a prefabrication factory, the size of an arched tenon is unified, the size deviation is reduced, and the construction quality and efficiency of the open caisson are improved.

The concrete using method of the sunk well with the tenon opening comprises the following steps:

1. before the open caisson is constructed on site, open caisson shafts are manufactured in batches and in a centralized manner at prefabricated places, the joint size is unified, grouting holes 4 are pre-buried, standard maintenance is performed, and the open caisson shafts are transported to the site through transport vehicles after meeting the requirements;

2. hoisting a first section of open caisson to the position of the cushion layer, and digging soil to sink;

3. after the first section of open caisson reaches a preset elevation, the rubber ring is sleeved 7 at the tenon opening groove 3;

4. hanging the second section of open caisson, and installing the positions of the outer rabbet 1 and the inner rabbet 2 in alignment by aid of ropes;

5. continuously digging soil and sinking, and repeatedly installing;

6. when water seepage phenomenon is found in the sinking process, removing plain concrete 5 at one end of a grouting hole 4, taking down an external force pipe plug 6, cleaning the grouting hole 4, grouting after cleaning, stopping grouting when slurry seeps out from the adjacent grouting opening, and cleaning before the slurry is coagulated;

finally, the open caisson is sealed and the floor is applied.

Claims (5)

1. Prefabricated sunk well tenon mouth structure, including outer tenon mouth (1) and interior tenon mouth (2), its characterized in that: the outer rabbet (1) and the inner rabbet (2) are respectively arranged at the top end and the bottom end of the open caisson, the specifications of the outer rabbet (1) and the inner rabbet (2) are the same, a plurality of rabbet grooves (3) are respectively arranged on the outer rabbet (1) and the inner rabbet (2), and a rubber ring (7) is respectively sleeved on one of the rabbet grooves (3) in the outer rabbet (1) and the inner rabbet (2);

and the pre-grouting assembly is arranged at the position of the inner rabbet (2).

2. The prefabricated sunk well tenon's work structure according to claim 1, wherein: the two rubber rings (7) are arranged in a staggered mode.

3. The prefabricated sunk well tenon's work structure according to claim 1, wherein: the pre-grouting assembly comprises a grouting hole (4) formed in the position of the inner tenon opening (2), and the grouting hole (4) is horizontally arranged.

4. A prefabricated sunk well tenon's work structure according to claim 3, wherein: the end part of the grouting hole (4) is clamped with an external force pipe plug (6).

5. The prefabricated sunk well tenon's work structure according to claim 4, wherein: the outside area of the external force pipe plug (6) is provided with plain concrete (5).

Images