Soft soil geologic structure reinforced foundation

Abstract

The utility model discloses a soft soil geologic structure reinforced foundation which comprises a column foundation unit, the column foundation unit comprises a plurality of column foundations distributed in an array mode, the tops of the column foundations are connected through a ground ring beam, the bottoms of the column foundations are erected on a cross-shaped structure frame respectively, a bearing ring is arranged below the cross-shaped structure frame, the bearing ring is clamped on soft soil, and the cross-shaped structure frame is connected with the column foundations. The bearing ring is of a ring body structure, stress claws are distributed on the outer side of the ring body in the circumferential direction, damping columns are distributed on the portion, on the bottom end face of the bearing ring, of the ring body in the circumferential direction, and the damping columns are inserted into damping holes pre-buried in the deep layer of soft soil correspondingly. Foundation load bearing is dispersed, and the total weight of the wall body is effectively dispersed; the stability of the wall body is enhanced, the wall body is prevented from shaking, and the shock strength is improved; the foundation adopts a circular ring and grab-shaped dispersed stress design, so that the stress area is increased, the building weight is dispersed, the concentration of local weight is reduced, and the stability and shock resistance of a building are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation structures, in particular to a reinforced foundation of a soft soil geological structure. Background Art

[0002] Building foundation refers to the soil or rock mass supporting the foundation under the building. The soil layer used as the building foundation is divided into rock, crushed stone soil, sand, silt, clay and artificial fill. There are two types of foundations: natural foundation and artificial foundation (composite foundation). Natural foundation is a natural soil layer that does not require human reinforcement, and artificial foundation needs human reinforcement. Common ones include stone chip cushion layer, sand cushion layer, mixed gray soil backfill and compaction, etc., especially for self-built houses in rural areas, ground collapse and sinking are difficult to solve. At present, the domestic construction industry uses clay bricks, hollow bricks, or reinforced concrete to make columns and frames during building construction, and then uses clay bricks and hollow bricks to build walls. The production of clay bricks wastes clay mineral resources, and the building is too heavy, the seismic coefficient is low, and the bearing strength is low. The method of using steel bar pulling nets and concrete pouring is high in cost and long in construction period, especially for high-rise buildings that bear the weight of movement, the bearing and shock absorption effects are not good.

[0003] The ground ring beam is commonly known as the ground beam. It has a closed feature when it is circled. It forms an anti-seismic crack-limiting system with the structural column to reduce the negative effect of uneven settlement. Therefore, the structure of the ground ring beam is also changed from the footnote forming method to the existing steel composite structure. For example, the patent publication number is: CN 206256619 U, which discloses a prefabricated reinforced concrete ground ring beam, which is a ground ring beam prefabricated by reinforced concrete. The two ends of the ground ring beam are provided with a plurality of protruding steel bars, and the ends of the protruding steel bars are provided with a threaded structure. During installation, the ground ring beam is erected so that the protruding steel bars of the ground ring beam are inserted between the protruding steel bars of the prefabricated column, and a joint is left between the ground ring beams. The protruding steel bars of the ground ring beam are fixedly connected at the joint by a steel bar connecting buckle, and a joint mold is supported. Concrete is poured at the joint to fill the connection parts between the ground ring beams and between the ground ring beams and the columns. Although it overcomes the problems of large cast-in-place amount, high waste, high cost, long construction time, low work efficiency, and environmental protection in the prior art. However, its structural design is poor, its moisture-proof effect is not good, and during use, the soft geology will cause the foundation of the house to sink and deform, and the overall structure will be damaged.

[0004] To this end, we have designed a soft soil geological structure reinforced foundation, which is simple to operate, easy to construct, has a short construction period, high seismic strength, and good moisture-proof building materials and construction methods to improve actual construction needs and the moisture-proof and seismic coefficient of buildings; effectively change the problems of foundation technology in collapsing loess or geologically soft areas, where the foundation of the house sinks and deforms due to soft geology, the overall structure is damaged, and personal safety is endangered. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects and shortcomings of the prior art, provide a soft soil geological structure reinforced foundation, and solve various problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A reinforced foundation for a soft soil geological structure includes a column base unit, wherein the column base unit includes a plurality of column bases distributed in an array, wherein the tops of the column bases are connected by ground ring beams, and the bottoms of the column bases are respectively mounted on a cross structure frame, and a load-bearing ring is arranged below the cross structure frame, and the load-bearing ring is clamped on the soft soil. The load-bearing ring is a ring body structure, and force claws are distributed in the outer circumferential direction of the ring body, and shock-absorbing columns are distributed in the circumferential direction of the ring body on the bottom end face of the load-bearing ring, and the shock-absorbing columns are respectively inserted into shock-absorbing holes pre-buried in the deep layer of soft soil.

[0008] The depth of the shock-absorbing holes and shock-absorbing columns in the deep soft soil layer is 0.6-0.8 meters from the ground height of the building.

[0009] A gap is arranged between the shock absorbing column and the shock absorbing hole, and the gap is filled with coarse sand.

[0010] The gap value is 100mm-300mm, the filling coarse sand particle size is 0.5-1.2mm, and it is doped with 10% lime.

[0011] A plurality of 20-30 mm steel bars are embedded in the shock-absorbing column.

[0012] A waterproof and seepage-proof layer is filled between the load-bearing ring around the cross structure frame and the column base.

[0013] The waterproof and anti-seepage layer is a polymer modified asphalt waterproof roll material or a synthetic polymer waterproof roll material.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model adopts a load-bearing method combining evenly distributed multiple shock-absorbing columns and a coarse sand buffer layer, which disperses the foundation load and effectively disperses the total weight of the wall; strengthens the stability of the wall, prevents the wall from shaking, and improves the seismic strength;

[0016] 2. The foundation of the utility model adopts a circular ring and grip-shaped dispersed force design, which increases the force-bearing area, disperses the building weight, reduces the concentration of local weight, and enhances the stability and earthquake resistance of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the main cross-sectional view of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a bottom sectional view of the load-bearing ring;

[0020] Figure 4 It is a top view of the ring beam connection of the utility model.

[0021] Reference numerals:

[0022] 1. Soft soil; 2. Shock-absorbing holes; 3. Column base; 4. Cross structure frame; 5. Load-bearing ring; 6. Load claws; 7. Waterproof and seepage-proof layer; 8. Shock-absorbing columns; 9. Coarse sand. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See attached Figure 1-4 ;

[0025] A reinforced foundation for a soft soil geological structure includes a column base unit, which includes a plurality of column bases 3 distributed in an array. The tops of the column bases 3 are connected by ground ring beams 10. The bottoms of the column bases 3 are respectively mounted on a cross structure frame 4. A load-bearing ring 5 is arranged below the cross structure frame 4. The load-bearing ring 5 is clamped on the soft soil 1. The load-bearing ring 5 is a ring structure, and force claws 6 are distributed in the outer circumferential direction of the ring. The structure of the ring and the force claws 6 increases the force bearing area and disperses the force, thereby dispersing the weight of the building, reducing the concentration of local weight, and enhancing the stability and seismic resistance of the building. Shock-absorbing columns 8 are distributed in the circumferential direction of the ring on the bottom end face of the load-bearing ring 5. The distribution design of the shock-absorbing columns 8 disperses the foundation load and effectively disperses the total weight of the wall. The shock-absorbing columns 8 are respectively inserted into shock-absorbing holes 2 pre-buried in the deep layer of the soft soil.

[0026] Furthermore, the depth of the shock-absorbing holes 2 and shock-absorbing columns 8 in the deep soft soil layer is 0.6-0.8 meters from the ground height of the building. The depth of the shock-absorbing holes 2 and shock-absorbing columns 8 is limited to the data range summarized by frequent tests, so that the bottom has a certain support and load-bearing performance, avoids certain difficulties in construction due to excessive depth, and can meet the strength requirements.

[0027] Furthermore, a gap is provided between the shock absorbing column and the shock absorbing hole, and the gap is filled with coarse sand 9. The gap value is 100mm-300mm, and the particle size of the filled coarse sand 9 is 0.5-1.2mm, and 10% of lime is mixed. The filling of coarse sand 9 and the coordination of the shock absorbing column 8 strengthen the stability of the wall, prevent the shaking of the wall, and improve the earthquake resistance.

[0028] A plurality of 20-30 mm steel bars are embedded in the shock absorbing column 8. The structure of the steel bars is increased in the shock absorbing column 8, thereby increasing the strength and shock absorbing performance of the shock absorbing column 8.

[0029] Furthermore, a waterproof and seepage-blocking layer 7 is filled between the load-bearing ring 5 around the cross structure frame 4 and the column base 3. The waterproof and seepage-blocking layer 7 is a polymer modified asphalt waterproofing membrane or a synthetic polymer waterproofing membrane. The structure of the waterproof and seepage-blocking layer 7 can prevent external groundwater from penetrating into the bottom of the column base 3, strengthen the support around the building column, and ensure the stability of the bottom support.

[0030] The construction steps of this application are:

[0031] First, the foundation is leveled and the construction is laid out. A drilling rig is used to drill a hole 2 of a predetermined depth at the column base position in the soft soil. Then, the shock absorbing column 8 of the load-bearing ring 5 is correspondingly inserted into the shock absorbing hole 2. Then, coarse sand 9 is filled in the gap between them. Then, the cross structure frame 4 is located and fixed on the load-bearing ring 5. Finally, the column base is poured on the cross structure frame 4. After all the column bases of the column base unit are poured, the tops of the column bases 3 can be connected by a ground ring beam 10; the load-bearing ring 5 is prepared in advance.

[0032] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0033] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A reinforced foundation for a soft soil geological structure, comprising a column base unit, wherein the column base unit comprises a plurality of column bases (3) distributed in an array, wherein the tops of the column bases (3) are connected by a ground ring beam (10), characterized in that: The bottoms of the column bases (3) are respectively mounted on a cross structure frame (4), a load-bearing ring (5) is arranged below the cross structure frame (4), the load-bearing ring (5) is clamped on the soft soil (1), the load-bearing ring (5) is a ring structure, and force claws (6) are distributed in the outer circumferential direction of the ring body, and shock-absorbing columns (8) are distributed in the circumferential direction of the ring body on the bottom end surface of the load-bearing ring (5), and the shock-absorbing columns (8) are respectively inserted into shock-absorbing holes (2) pre-buried in the deep layer of the soft soil.

2. The reinforced foundation for soft soil geological structure according to claim 1, characterized in that: The depth of the shock-absorbing holes (2) and shock-absorbing columns (8) in the deep soft soil layer is 0.6-0.8 meters from the ground height of the building.

3. The reinforced foundation for soft soil geological structure according to claim 1, characterized in that: A gap is provided between the shock absorbing column and the shock absorbing hole, and the gap is filled with coarse sand (9).

4. The reinforced foundation for soft soil geological structure according to claim 3, characterized in that: The gap has a value of 100 mm to 300 mm, the filling coarse sand (9) has a particle size of 0.5 to 1.2 mm, and is doped with 10% lime.

5. The reinforced foundation for soft soil geological structure according to claim 1, characterized in that: A plurality of 20-30 mm steel bars are embedded in the shock absorbing column (8).

6. The reinforced foundation for soft soil geological structure according to claim 1, characterized in that: A waterproof and seepage-proof layer (7) is filled between the load-bearing ring (5) around the cross structure frame (4) and the column base (3).

7. The reinforced foundation for soft soil geological structure according to claim 6, characterized in that: The waterproof and permeation-blocking layer (7) is a polymer-modified asphalt waterproofing roll or a synthetic polymer waterproofing roll.

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