Foundation pit supporting structure for road surface rainwater pipeline groove excavation

Abstract

The utility model relates to the technical field of foundation pit supporting structures, and discloses a foundation pit supporting structure for road surface rainwater pipeline groove excavation, which comprises a supporting column, a connecting shaft I is fixedly connected to the bottom of the inner wall of the supporting column on the upper side, a connecting shaft II is fixedly connected to the bottom of the connecting shaft I, a clamping groove is formed in the bottom of the connecting shaft II, and a clamping groove is formed in the bottom of the clamping groove. A fixed circular plate is fixedly connected to the top of the inner wall of the supporting column on the lower side, springs are fixedly connected to the periphery of the inner wall of the fixed circular plate, a sliding circular plate is fixedly connected to the other ends of the springs, the inner wall of the sliding circular plate is clamped to the outer wall of the clamping groove, and a second fixed plate is fixedly connected to the position, close to the middle, of the inner wall of the supporting column on the lower side. According to the connecting structure, when the supporting columns need to be connected, the clamping grooves are formed in the outer walls of the second connecting shafts fixed to the bottoms of the first connecting shafts fixed to the interiors of the supporting columns on the upper side, and therefore the requirement that the two supporting columns are rapidly pulled out and inserted when installed is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of foundation pit support structure, especially to the foundation pit support structure of road surface rainwater pipeline ditch excavation. BACKGROUND

[0002] With the continuous expansion of city scale and the sustained growth of population, the city infrastructure construction is increasingly perfect, and the laying demand of road surface rainwater pipeline as the key component of city drainage system is also increasing. When the rainwater pipeline ditch is excavated under the city road, due to the complex surrounding environment, effective foundation pit support structure is needed to ensure the construction safety and the stability of the surrounding environment. The design and construction standard of modern rainwater pipeline is higher and higher, and the precision and stability requirements of ditch excavation are also improved accordingly. Some large-diameter rainwater pipelines need deeper ditches, which puts higher requirements on the bearing capacity and stability of the foundation pit support structure to prevent the collapse of the ditch slope and ensure the smooth installation of the pipeline. The geological conditions of different cities are very different, such as soft soil, sandy soil, silty clay and rock. In the soft soil area, the bearing capacity of the soil is low and the compressibility is high, and the slope instability and foundation deformation are prone to occur after the ditch excavation. In the sandy soil area, the sandy soil has strong particle nature and small cohesion, and is prone to quicksand phenomenon, which requires high water stop and soil retaining performance of the foundation pit support structure. In the rock area, although the foundation bearing capacity is high, the joint fissure development of the rock is different, which also brings certain difficulty to the ditch excavation and support.

[0003] At present, the foundation pit support structure steel sheet pile on the market is mainly composed of steel sheet pile and concrete support. City road is an important channel of transportation, and road surface rainwater pipeline ditch excavation often needs to be carried out without interrupting traffic or minimizing traffic impact, which requires the foundation pit support structure not only to meet the construction safety and stability requirements, but also to have the characteristics of rapid installation and removal to shorten the construction period and reduce the interference to traffic. In the past, in some small or temporary rainwater pipeline ditch excavation, the method of slope excavation and wood support was often used. Slope excavation needs to occupy a large site space, which is difficult to implement in narrow sections of city road. The strength and stability of wood support are limited, and it is difficult to withstand large soil pressure and water pressure, and has poor durability, which cannot meet the needs of long-term construction or complex geological conditions. Some conventional foundation pit support structures such as steel sheet pile and cast-in-place pile have their own limitations. Steel sheet pile is difficult to punch in hard stratum, and may cause secondary disturbance to the surrounding soil when removed. The construction speed of cast-in-place pile is slow, and the cost is high, which is not economical for small rainwater pipeline ditch excavation. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a foundation pit support structure of road surface rainwater pipeline trench excavation, aims at improving the problems that the simple method of adopting the slope excavation and the wood support in the past in some small or temporary rainwater pipeline trench excavation in the prior art, the slope excavation needs to occupy a larger site space, and the strength and stability of the wood support are limited.

[0005] In order to realize the above object, the utility model adopts the following technical scheme: a foundation pit support structure of road surface rainwater pipeline trench excavation, including support column, the inner wall bottom of upper support column is fixedly connected with connecting shaft no.

[0006] Through the above technical scheme: the inner wall bottom of support column is fixedly connected with a connecting shaft no.

[0007] As a further description of the above technical scheme:

[0008] The fixed mechanism includes foundation pit groove, the outer wall of foundation pit groove is fixedly connected on the outer wall of support column, the bottom of foundation pit groove is fixedly connected with fixed plate no.

[0009] Through the above technical scheme: the bottom of fixed plate no.

[0010] As a further description of the above technical scheme:

[0011] The outer wall of the upper support column is fixedly connected with a weight bar one on the front and back sides.

[0012] Through the above technical scheme: the outer wall of the support column is fixedly connected with the weight bar one on the front and back sides, and the weight bars one are symmetrically arranged on the front and back sides of the outer wall of the support column.

[0013] As a further description of the above technical scheme:

[0014] The outer wall of the lower support column is fixedly connected with a weight bar two on the front and back sides, and the outer wall of the lower support column is fixedly connected with a protective sleeve one on the upper and lower ends.

[0015] Through the above technical scheme: the lower side of the support column is also fixedly connected with the weight bar two, and the lower side of the support column is fixedly connected with the protective sleeve one on the upper and lower ends of the outer wall.

[0016] As a further description of the above technical scheme:

[0017] The top of the foundation pit groove is fixedly connected with a fixed shaft, and the top of the fixed shaft is fixedly connected with a connecting shaft three.

[0018] Through the above technical scheme: the upper edge of the foundation pit groove is fixedly connected with several fixed shafts, and the upper end of each fixed shaft is connected with a connecting shaft three.

[0019] As a further description of the above technical scheme:

[0020] The top of the connecting shaft three is fixedly connected with a guardrail, and the outer wall of the guardrail is fixedly connected with a protective sleeve two.

[0021] Through the above technical scheme: the top of the connecting shaft three is fixedly connected with a guardrail, and the outer wall of the guardrail is fixedly connected with a protective sleeve two.

[0022] As a further description of the above technical scheme:

[0023] The top of the guardrail is fixedly connected with a handle on the front and back sides, and the outer wall of the handle is fixedly connected with an anti-skid sleeve.

[0024] By the above technical scheme: the design of the guardrail takes into account the user's convenience, the top of the guardrail is designed as a structure that can be easily gripped by the user, specifically, handles are fixedly connected to the top of the guardrail, the handles are arranged to enable the user to hold the guardrail more stably and comfortably, and in order to further improve the comfort and safety during holding, a non-slip sleeve is fixedly connected to the outer wall of each handle.

[0025] As a further description of the above technical scheme:

[0026] The outer wall top of the foundation pit groove is fixedly connected, the left and right sides of the top of the foundation pit groove are fixedly connected with soft pads, and the inner wall right side of the foundation pit groove is fixedly connected with a pipeline.

[0027] By the above technical scheme: the outer wall top of the foundation pit groove is connected to other structures or components through a fixed connector to ensure the stability of the foundation pit groove, and the left and right sides of the top of the foundation pit groove are equipped with soft pads which are fixedly connected to the corresponding positions of the foundation pit groove to provide additional support and protection to prevent damage to the foundation pit groove during construction.

[0028] The utility model has the advantages of the following beneficial effects:

[0029] 1、The utility model discloses a support column needs to connect, and the bottom fixed connecting shaft no. 2 outer wall of the fixed connecting shaft no. 1 in the upper support column is provided with a clamping groove, and the inner four quarters of the fixed circular plate on the inner wall of the bottom support column are fixedly connected with springs, the clamping groove provided on the connecting shaft no. 2 is clamped on the outer wall of the sliding circular plate when the connecting shaft no. 2 on the top extrudes the sliding circular plate, and the upper and lower support columns are fixed, thereby meeting the need of quick plug -in when installing two support columns.

[0030] 2、The utility model discloses a base column for fixing the road surface rainwater pipe groove, and the bottom fixed plate no. 1 of the foundation pit groove is provided with a concrete layer for reinforcement, thereby meeting the fixing demand of the road surface rainwater groove. ACCURACY OF DRAWINGS

[0031] Figure 1 It is the front side perspective view of the support column of the foundation pit support structure of the road surface rainwater pipe trench excavation of the utility model;

[0032] Figure 2 It is the local structure split drawing of the guardrail of the foundation pit support structure of the road surface rainwater pipe trench excavation of the utility model;

[0033] Figure 3 It is the local structure drawing of the connecting shaft no. 1 of the foundation pit support structure of the road surface rainwater pipe trench excavation of the utility model;

[0034] Figure 4 The partial structure display diagram of the fixed round plate of the foundation pit support structure for road surface rainwater pipeline trench excavation is provided by the utility model;

[0035] Figure 5 The partial structure schematic diagram of the spring of the foundation pit support structure for road surface rainwater pipeline trench excavation is provided by the utility model.

[0036] Legend:

[0037] 1, support column; 2, fixed mechanism; 201, foundation pit groove; 202, fixed plate one; 203, concrete layer; 204, gravel layer; 205, fixed column; 3, connecting shaft one; 4, connecting shaft two; 5, sliding round plate; 6, spring; 7, fixed round plate; 8, clamping groove; 9, fixed plate two; 10, weight increasing strip one; 11, protective sleeve one; 12, weight increasing strip two; 13, protective sleeve two; 14, handle; 15, anti-skid sleeve; 16, fixed shaft; 17, connecting shaft three; 18, soft pad; 19, guardrail; 20, protective sleeve two; 21, pipeline. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0039] Please refer to the drawings in the embodiments of the utility model Figure 3 - the drawings in the embodiments of the utility model Figure 5 An embodiment provided by the utility model: the foundation pit support structure for road surface rainwater pipeline trench excavation, including support column 1, the inner wall bottom of upper side support column 1 is fixedly connected with connecting shaft one 3, the bottom of connecting shaft one 3 is fixedly connected with connecting shaft two 4, the bottom of connecting shaft two 4 is provided with clamping groove 8, the inner wall top of lower side support column 1 is fixedly connected with fixed round plate 7, the inner wall all around of fixed round plate 7 is fixedly connected with spring 6, the other end of spring 6 is fixedly connected with sliding round plate 5, the inner wall of sliding round plate 5 is clamped with the outer wall of clamping groove 8, the inner wall close to the middle of lower side support column 1 is fixedly connected with fixed plate two 9, the outer wall top of fixed plate two 9 is fixedly connected with weight increasing strip one 10, in the position close to the middle of the inner wall of support column 1, one fixed plate two 9 is fixedly connected, the outer wall top of this fixed plate two 9 is fixedly connected with one weight increasing strip one 10, the outer wall of weight increasing strip one 10 is designed to be clamped with the bottom of connecting shaft two 4 to increase the stability of the overall structure, the outer wall of weight increasing strip one 10 is clamped with the bottom of connecting shaft two 4, the outer wall of support column 1 is provided with fixed mechanism 2, and fixed mechanism 2 is used for fixing foundation column;

[0040] Specifically, the inner wall bottom of the support column 1 is fixedly connected with a connecting shaft 3, and the bottom of the connecting shaft 3 is fixedly connected with another connecting shaft 4. On the other side, i.e. the lower side, of the support column 1, the top of the inner wall is fixedly connected with a fixed circular plate 7. The inner wall of the fixed circular plate 7 is uniformly fixedly connected with a plurality of springs 6 around the periphery. The other end of each spring 6 is fixedly connected with a sliding circular plate 5. The inner wall of the sliding circular plate 5 is designed to be capable of being clamped with the outer wall of a clamping groove 8, thereby achieving stable connection. Finally, the outer wall of the support column 1 is provided with a fixing mechanism 2. The main function of the fixing mechanism 2 is to fix the base column at a proper position.

[0041] Please refer to the accompanying drawings Figure 1 The accompanying drawings Figure 3 Specifically, the outer wall of the base pit groove 201 is fixedly connected with the outer wall of the support column 1. The bottom of the base pit groove 201 is fixedly connected with a fixed plate 202. The bottom of the fixed plate 202 is provided with a concrete layer 203. The bottom of the concrete layer 203 is provided with a gravel layer 204. The inner periphery of the gravel layer 204 is uniformly provided with a plurality of fixed columns 205. The plurality of fixed columns 205 not only strengthen the stability of the entire structure, but also effectively prevent lateral movement, thereby ensuring the safety of the base pit groove 201 under various working conditions.

[0042] Specifically, the bottom of the fixed plate 202 is carefully designed with the concrete layer 203. The concrete layer 203 not only provides a firm support for the base pit groove 201, but also effectively prevents water penetration. In order to further enhance the stability of the structure, the bottom of the concrete layer 203 is specially provided with the gravel layer 204. The material selection and laying method of the gravel layer 204 are carefully calculated to ensure that it can uniformly disperse the pressure and prevent ground subsidence.

[0043] Please refer to the accompanying drawings Figure 2 The accompanying drawings Figure 4 The outer wall of the upper support column 1 is fixedly connected with a plurality of weight-increasing strips 10 on the front and rear sides. The plurality of weight-increasing strips 10 are symmetrically arranged on the front and rear sides of the outer wall of the support column 1. The outer wall of the lower support column 1 is fixedly connected with a plurality of weight-increasing strips 12 on the front and rear sides. The outer wall of the lower support column 1 is fixedly connected with a protective sleeve 11 on the upper and lower ends. The top of the base pit groove 201 is fixedly connected with a plurality of fixed shafts 16 around the periphery. The top of each fixed shaft 16 is fixedly connected with a connecting shaft 17. The top of each fixed shaft 16 is fixedly connected with a connecting shaft 17. The design makes the base pit groove 201 firmly combined with other structural components, thereby ensuring the stability and safety of the entire structure.

[0044] Specifically, the outer wall of the support column 1 is fixedly connected with the weight bars 10 on both sides, which are symmetrically arranged on both sides of the outer wall of the support column 1, and the weight bars 2 are also fixedly connected to the lower side of the support column 1, which can further enhance the stability and carrying capacity of the support column 1. The upper and lower ends of the outer wall of the lower side of the support column 1 are fixedly connected with the protective sleeves 11, which can protect the outer wall of the support column 1 from being eroded and damaged by the external environment.

[0045] Please refer to the attached Figure 1 - attached Figure 3 The top of the plurality of connecting shafts 17 is fixedly connected with the guardrails 19, the outer wall of the guardrails 19 is fixedly connected with the protective sleeves 20, the top of the guardrails 19 is fixedly connected with the handles 14 on both sides, the outer wall of the plurality of handles 14 is fixedly connected with the anti-skid sleeves 15, the outer wall of the top of the foundation pit groove 201 is fixedly connected with 13, in addition, in order to facilitate the user to hold, the top of the guardrails 19 is fixedly connected with the handles 14 on both sides, the outer wall of the handles 14 is fixedly connected with the anti-skid sleeves 15, which ensures the safety and comfort of the user when holding, and the top of the outer wall of the foundation pit groove 201 is fixedly connected with 13, which can increase the stability of the foundation pit groove 201, the top of the foundation pit groove 201 is fixedly connected with the soft pads 18 on both sides, and the inner wall of the foundation pit groove 201 is fixedly connected with the pipeline 21 on the right side.

[0046] Specifically, the top of the plurality of connecting shafts 17 is connected with the guardrails 19, which can effectively protect the safety of the user, the outer wall of the guardrails 19 is fixedly connected with the protective sleeves 20, which not only enhances the durability of the guardrails 19, but also provides additional protection for the user, the top of the foundation pit groove 201 is fixedly connected with the soft pads 18 on both sides, which can provide additional cushioning to protect the user from being injured by hard objects during use, and finally, in order to meet different use requirements, the inner wall of the foundation pit groove 201 is fixedly connected with the pipeline 21 on the right side, which makes the function of the foundation pit groove 201 more diversified.

[0047] Working principle: when the support column 1 needs to be connected, the bottom of the fixed connecting shaft 3 inside the upper support column 1 is fixedly connected with the connecting shaft 4, and the outer wall of the connecting shaft 4 is provided with a clamping groove 8, the inner wall of the fixed plate 7 in the bottom support column 1 is fixedly connected with the spring 6, and the top of the connecting shaft 4 is fixedly connected with the sliding plate 5, the clamping groove 8 on the connecting shaft 4 is clamped on the outer wall of the sliding plate 5, so that the bottom of the connecting shaft 4 can be clamped on the weight bar 10 fixedly connected to the outer wall of the fixed plate 2, and the upper and lower support columns 1 are fixed, thereby meeting the needs of quick plugging during installation of the two support columns 1;

[0048] In order to better fix the base column of the road rainwater pipe groove, the fixed plate one 202 is fixed at the bottom of the foundation pit groove 201, meanwhile, a concrete layer 203 is arranged at the bottom of the fixed plate one 202 to reinforce it, and the fixed columns 205 are fixed around the inner wall of the sandstone layer 204 arranged at the bottom of the concrete layer 203 to better reinforce the foundation pit groove 201, thereby meeting the fixing requirement of the road rainwater pipe groove.

[0049] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A foundation pit support structure for road surface rainwater pipe trench excavation, comprising a support column (1), characterized in that: The inner wall bottom of the upper support column (1) is fixedly connected with a connecting shaft one (3), the bottom of the connecting shaft one (3) is fixedly connected with a connecting shaft two (4), the bottom of the connecting shaft two (4) is provided with a clamping groove (8), the inner wall top of the lower support column (1) is fixedly connected with a fixed circular plate (7), the inner wall of the fixed circular plate (7) is fixedly connected with springs (6) around, the other end of the spring (6) is fixedly connected with a sliding circular plate (5), the inner wall of the sliding circular plate (5) is clamped with the outer wall of the clamping groove (8), the inner wall of the lower support column (1) is fixedly connected with a fixed plate two (9) near the middle, the outer wall top of the fixed plate two (9) is fixedly connected with a weight bar one (10), the outer wall of the weight bar one (10) is clamped with the bottom of the connecting shaft two (4), the outer wall of the support column (1) is provided with a fixing mechanism (2), and the fixing mechanism (2) is used for fixing the base column.

2. The excavation support structure for road surface storm water pipe trenching according to claim 1, wherein: The fixing mechanism (2) comprises a foundation pit groove (201), the outer wall of the foundation pit groove (201) is fixedly connected with the outer wall of the support column (1), the bottom of the foundation pit groove (201) is fixedly connected with a fixed plate one (202), the bottom of the fixed plate one (202) is provided with a concrete layer (203), the bottom of the concrete layer (203) is provided with a gravel layer (204), and the inside of the gravel layer (204) is provided with a fixed column (205) around.

3. The excavation support structure for road surface storm water pipe trenching according to claim 1, wherein: The outer wall front and back of the upper support column (1) is fixedly connected with a weight bar one (10), and a plurality of weight bars one (10) are symmetrically arranged on the outer wall front and back of the support column (1).

4. The excavation support structure for road surface storm water pipe trenching according to claim 1, wherein: The outer wall front and back of the lower support column (1) is fixedly connected with a weight bar two (12), and the outer wall upper and lower ends of the lower support column (1) is fixedly connected with a protective sleeve one (11).

5. The excavation support structure for road surface storm water pipe trenching according to claim 2, wherein: The top of the foundation pit groove (201) is fixedly connected with a fixed shaft (16), and the top of the fixed shaft (16) is fixedly connected with a connecting shaft three (17).

6. The excavation support structure for a road surface storm water pipe trench according to claim 5, characterized by: The top of the connecting shaft three (17) is fixedly connected with a guardrail (19), and the outer wall of the guardrail (19) is fixedly connected with a protective sleeve two (20).

7. The excavation support structure for road surface storm water pipe trenching according to claim 6, wherein: The top of the guardrail (19) is fixedly connected with a handle (14), and the outer wall of the handle (14) is fixedly connected with an anti-skid sleeve (15).

8. The excavation support structure for road surface storm water pipe trenching according to claim 2, wherein: The outer wall top of the foundation pit groove (201) is fixedly connected with a fixed plate (13), the top left and right sides of the foundation pit groove (201) are fixedly connected with a soft pad (18), and the inner wall right side of the foundation pit groove (201) is fixedly connected with a pipeline (21).

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