CN218322891U

CN218322891U - Novel foundation pit deformation displacement monitoring point device

Info

Publication number: CN218322891U
Application number: CN202222442577.0U
Authority: CN
Inventors: 林楠; 何兆芳; 徐惠; 陶爱林; 陶久敏
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-17
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a novel foundation ditch deformation displacement monitoring point device belongs to foundation ditch monitoring technology field, including the device body to and the monitoring point structure of fixed mounting at device body top, the device body is including being responsible for structure and baffle structure, it includes flexible stand to be responsible for the structure to and connect the person in charge at flexible stand lower extreme, monitoring point structural connection is on flexible stand top, baffle structure is including connecting a plurality of arcs of being responsible for the side to and the toe board of fixed mounting at arc outside lower extreme. The utility model discloses rely on the cooperation setting of being responsible for structure and baffle structure, flexible stand and the person in charge realize altitude mixture control through connecting bolt, and the spatial structure stability that arc and toe board are constituteed is good for the whole atress of device is even, and difficult emergence slope effectively ensures that overall structure produces even displacement, and can guarantee that the displacement direction of foundation ditch monitoring point is unanimous with foundation ditch deformation displacement direction.

Description

Novel foundation pit deformation displacement monitoring point device

Technical Field

The utility model belongs to the technical field of the foundation ditch monitoring, concretely relates to novel foundation ditch deformation displacement monitoring point device.

Background

The foundation pit monitoring is an important link in foundation pit engineering construction, and means that various observation and analysis works are carried out on the rock-soil characteristics of the foundation pit, the displacement of a supporting structure and the change of surrounding environment conditions in the process of foundation pit excavation and underground engineering construction, monitoring results are fed back in time, the deformation and the development of a stable state which are caused after further construction are predicted, the degree of influence of the construction on the surrounding environment is judged according to the prediction, the design and the construction are guided, and the information construction is realized. The most central one is horizontal displacement monitoring, namely, whether the foundation pit is sunken or not is monitored, so that a collapse event is avoided.

The existing commonly used foundation pit monitoring method is that a cross measuring nail is arranged on a crown beam through drilling or a reinforcing steel bar is hammered into the side wall of the foundation pit, cement is poured around the reinforcing steel bar to reinforce the reinforcing steel bar, and a cross wire is carved at the end of the reinforcing steel bar to facilitate observation. However, the steel bars are adopted as foundation pit monitoring points, when soil displacement occurs, the steel bars are of a columnar structure and are long in structure, the movement of the soil around the foundation pit may cause large stress on deep soil and small stress on shallow soil, uneven stress causes small displacement on the upper parts of the steel bars and large displacement on the lower parts of the steel bars, and the top of the steel bars inclines towards the outer side of the foundation pit.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the inventor reachs through practice and summary the utility model discloses a novel foundation ditch deformation displacement monitoring point device, including the device body to and the monitoring point structure of fixed mounting at device body top, the device body is including being responsible for structure and baffle structure, be responsible for the structure and include flexible stand to and connect the person in charge at flexible stand lower extreme, monitoring point structural connection is on flexible stand top, baffle structure is including connecting a plurality of arcs of being responsible for the side to and the toe board of fixed mounting at the arc outside lower extreme.

In order to guarantee to be responsible for in this application scheme and be connected stably with flexible stand, be responsible for and be hollow steel pipe, the size of flexible stand cooperatees with the internal diameter of being responsible for.

In order to guarantee to be responsible for in this application scheme and be connected stably with flexible stand, be responsible for side upper end and seted up the through-hole, just flexible stand side is seted up and is corresponded a plurality of fixed orificess of complex with the through-hole, install connecting bolt in the through-hole, through connecting bolt connects flexible stand and is responsible for.

In order to guarantee that the atress of being responsible for is even in this application scheme, be located and be responsible for a plurality of the side the arc is circumference setting.

In order to guarantee the anti-inclination ability of device body in this application scheme, the toe board is the right angled triangle structure, is connected fixedly through its right-angle side and arc.

In order to guarantee the stability of baffle structure in this application scheme, the arc is the integrated into one piece structure with the toe board.

In the scheme of the application, in order to facilitate installation of the measuring instrument, an observation hole is formed in the center of the top of the monitoring point structure.

Compared with the prior art, the utility model discloses can obtain following technological effect:

the utility model discloses a novel foundation pit deformation displacement monitoring point device, rely on the person in charge structure and baffle structure's cooperation setting, flexible stand and person in charge realize altitude mixture control through connecting bolt, effectively enlarge the application scope of device body, improve the practicality; the three-dimensional structure that arc and toe board are constituteed is stable good for the whole atress of device is even, and difficult emergence slope effectively ensures that overall structure produces even displacement, and can guarantee that the displacement direction of foundation ditch monitoring point is unanimous with foundation ditch deformation displacement direction, more can effectively audio-visual reflection foundation ditch condition, has fine use and spreading value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic diagram of the displacement of the device body of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.

Examples

As shown in figures 1-3, a novel foundation pit deformation displacement monitoring point device is composed of a device body installed in a foundation pit and a monitoring point structure 1 fixedly installed at the top of the device body, wherein the device body is composed of a main pipe structure and a baffle structure, the application range of the device body is effectively enlarged by means of the matching of the main pipe structure and the baffle structure, the practicability is improved, the whole stress of the device is uniform, the device is not prone to incline, the integral structure is effectively ensured to generate uniform displacement, the displacement direction of the foundation pit monitoring point can be ensured to be consistent with the foundation pit deformation displacement direction, and the foundation pit condition can be effectively and visually reflected.

The main pipe structure consists of a telescopic upright post 2 and a main pipe 3 connected to the lower end of the telescopic upright post 2, wherein the main pipe 3 is a hollow steel pipe, the size of the telescopic upright post 2 is matched with the inner diameter of the main pipe 3, the upper end of the side edge of the main pipe 3 is provided with a through hole, the side edge of the telescopic upright post 2 is provided with a plurality of fixing holes correspondingly matched with the through hole, a connecting bolt 31 is arranged in the through hole, and an end screw is pressed against the telescopic upright post 3 in the main pipe 2 by rotating the connecting bolt 31, so that the telescopic upright post 3 and the main pipe 2 are extruded and fixed; monitoring point structure 1 and flexible stand 2 top fixed connection to set up observation hole 11 on monitoring point structure 1's the top central point position, as the central point of erectting instrument and prism pole centering.

The baffle structure consists of four arc-shaped plates 4 and four toe plates 5, and the single arc-shaped plate 4 and the toe plates 5 are of an integrated structure; the four arc-shaped plates 4 are connected to the side edge of the main pipe 3 and are arranged circumferentially, and the angle between every two adjacent arc-shaped plates 4 is 90 degrees; the toe plate 5 is fixedly arranged at the lower end of the outer side of the arc-shaped plate 4, the toe plate 5 is in a right-angled triangle structure, and the right-angled edge of the toe plate is fixedly connected with the arc-shaped plate 4.

The working principle is as follows: after the foundation pit excavation is primarily finished, digging a pit beside the foundation pit according to a foundation pit drawing after a net is hung on the side wall of the foundation pit and before concrete is sprayed, and placing the device body into the pit; erecting a measuring instrument, such as a level or a total station, beside the foundation pit, placing a leveling rod or a prism rod on an observation hole 11 of the monitoring point structure, adjusting the height of the device body by rotating a connecting bolt 31 through the observation of the measuring instrument, and blocking the telescopic upright post 2 and the main pipe 3 by rotating the connecting bolt 31 after the height adjustment is finished; the device body is buried and compacted by undisturbed soil, attention needs to be paid to burying the connecting bolt 31 in a soil body during soil filling, if the buried soil body is shallow, the connecting bolt 31 is exposed in the environment, concrete can be sprayed on the side wall of the foundation pit to carry out guniting treatment on the connecting bolt 31, so that the connecting bolt is completely fixed and clamped, the telescopic upright column 3 and the main pipe 2 are ensured not to move relatively, and the firmness and stability of a top observation point are ensured; and repeating the steps, laying other monitoring points according to the foundation pit monitoring point drawing, and then sequentially observing and recording data by using the measuring instrument after the concrete is sprayed on the side wall of the foundation pit and the pit.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel foundation ditch deformation displacement monitoring point device, includes the device body to and fixed mounting is at monitoring point structure (1) at device body top, its characterized in that: the device body is including being responsible for structure and baffle structure, be responsible for the structure and include flexible stand (2) to and connect in the person in charge (3) of flexible stand (2) lower extreme, flexible stand (2) top is connected in monitoring point structure (1), the baffle structure is including connecting a plurality of arcs (4) of being responsible for (3) side, and toe board (5) of fixed mounting at arc (4) outside lower extreme.

2. The novel foundation pit deformation displacement monitoring point device according to claim 1, characterized in that: the main pipe (3) is a hollow steel pipe, and the size of the telescopic upright post (2) is matched with the inner diameter of the main pipe (3).

3. The novel foundation pit deformation displacement monitoring point device according to claim 2, characterized in that: be responsible for (3) side upper end and seted up the through-hole, just flexible stand (2) side is seted up and is corresponded a plurality of fixed orificess of complex with the through-hole, install connecting bolt (31) in the through-hole, through connecting bolt (31) connect flexible stand (2) and be responsible for (3).

4. A novel foundation pit deformation displacement monitoring point device according to claim 3, characterized in that: a plurality of arc plates (4) positioned at the side edge of the main pipe (3) are arranged in the circumferential direction.

5. The novel foundation pit deformation displacement monitoring point device according to claim 1, characterized in that: the toe board (5) is of a right-angled triangle structure and is fixedly connected with the arc-shaped board (4) through right-angled edges of the toe board.

6. A novel foundation pit deformation displacement monitoring point device according to claim 1, characterized in that: the arc-shaped plate (4) and the toe plate (5) are of an integrally formed structure.

7. The novel foundation pit deformation displacement monitoring point device according to claim 1, characterized in that: an observation hole (11) is formed in the center of the top of the monitoring point structure (1).