CN217460445U

CN217460445U - Novel refute bank suitable for soft soil foundation

Info

Publication number: CN217460445U
Application number: CN202220941760.2U
Authority: CN
Inventors: 张广健; 张弘扬; 邢骏; 葛培东; 周剑豪; 汪春平; 王鲁慧; 帅宝枋
Original assignee: Hangzhou Municipal Construction Group Co ltd
Current assignee: Hangzhou Municipal Construction Group Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-09-20
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a novel revetment suitable for soft soil foundation, which comprises a supporting beam, a revetment bottom plate and a revetment wall body, wherein the supporting beam is horizontally and rigidly connected with the revetment bottom plates at two sides, the end part of the supporting beam extends into the revetment bottom plate, and the water and soil pressures at two sides are mutually supported and eliminated through the supporting beam, so that the revetment is suitable for a river channel with the river width less than or equal to 10 meters; a transverse connecting beam arranged between the supporting beams is added on the basis of the supporting beams so as to be suitable for a river channel with the river width less than or equal to 15 meters; and on the basis of the transverse connecting beam, a positioning pile extending downwards is arranged on the lower surface of the connecting part of the transverse connecting beam and the supporting beam, so that the revetment is suitable for the river channel with the river channel length less than or equal to 20 m, and the revetment wall body is arranged above the revetment bottom plate. The utility model discloses simple structure, it is convenient to be under construction, replaces pile foundation through a supporting beam, has solved the river course and has refuted the anti-skidding stability of bank and the overall stability requirement of bank slope.

Description

Novel refute bank suitable for soft soil foundation

Technical Field

The utility model belongs to the technical field of refute the bank, concretely relates to novel refute bank suitable for soft soil foundation.

Background

The river course of general soft soil foundation refutes the bank, if the fender soil height is higher, refutes the anti-skidding stability of bank and the overall stability of bank slope in order to satisfy the river course and often needs to realize through doing the pile foundation under the bank is refuted in the river course. If the soft soil layer is thick, the cost of the pile foundation is very high, for example, in the southeast coastal region of China, the sludge layer is often 30-50 m thick, the implementation cost of the pile foundation is often far higher than that of the revetment wall body, and therefore a more economic and safe mode is needed to replace the pile foundation.

The main destruction form of the river channel revetment is the destruction caused by the unsatisfied antiskid stability of the foundation bottom and the unsatisfied integral stability of the foundation:

1) the anti-skid stability of the foundation bottom does not meet the requirement of causing the sliding of the revetment along the foundation bottom towards the river channel side, the main reason of the damage is that the horizontal thrust generated by the water and soil pressure at the wall back of the revetment is too large, and the frictional resistance generated by the load such as the self weight of the revetment is not enough to resist, so that the sliding of the revetment along the foundation bottom towards the river channel is caused, and the horizontal resistance must be increased by a method for increasing the anti-skid stability of the revetment;

2) the foundation integral stability is not satisfied to cause deep sliding under the foundation, an integral circular arc sliding surface comprising a bank slope and a river bottom is generated, the main reason of damage is that the downward sliding force on the circular arc sliding surface is greater than the anti-sliding force, so that the bank slope sinks (slides) the river bottom to bulge to the opposite bank and the upper side, and in order to increase the integral stability of the foundation, a method for increasing the horizontal resistance and the river bottom anti-bulging capability is required.

SUMMERY OF THE UTILITY MODEL

To the above problem, an object of the utility model is to provide a novel bank of refuting suitable for soft soil foundation reduces construction cost, improves the efficiency of construction.

In order to achieve the purpose, the following technical scheme is provided:

the utility model provides a novel refute bank suitable for soft soil foundation, includes a supporting beam, refutes the bank bottom plate and refutes the bank wall body, and a supporting beam refutes bank bottom plate horizontal rigid connection with both sides, and the tip of supporting beam gos deep into to refute the bank bottom plate, carries out each other to propping to disappear through a supporting beam to the soil and water pressure of both sides, refutes the bank wall body and locates the top of refuting the bank bottom plate, and this novel refute bank is applicable to the river course of river course width less than or equal to 10 meters.

The utility model provides a novel refute bank suitable for soft soil foundation, includes a supporting beam, refutes the bank bottom plate, refutes bank wall and horizontal tie beam, and a supporting beam refutes bank bottom plate horizontal rigid connection with what both sides, and the tip of supporting beam gos deep into to refute the bank bottom plate in, carries out each other to propping to disappear through a supporting beam to the soil and water pressure of both sides, refutes the bank wall and locates the top of refuting the bank bottom plate, and horizontal tie beam locates between a supporting beam and the supporting beam, and this novel refute bank is applicable to the width for the river course of less than or equal to 15 meters.

The utility model provides a novel refute bank suitable for soft soil foundation, including a supporting beam, refute the bank bottom plate, refute the bank wall body, horizontal tie beam and spud pile, the bank bottom plate horizontal rigid connection is refuted of a supporting beam and both sides, the tip of supporting beam is deepened and is refuted in the bank bottom plate, carry out mutual counterstay to the water and soil pressure of both sides and disappear through a supporting beam, refute the bank wall body and locate the top of refuting the bank bottom plate, horizontal tie beam locates between a supporting beam and the supporting beam, the lower surface of the junction of horizontal tie beam and a supporting beam is equipped with the spud pile, spud pile downwardly extending, length is 8-12 meters, this novel refute bank is applicable to the river course that the width is less than or equal to 20 meters.

The distance between the support beam and the support beam is 5-10 m, the support beam is vertically connected with the revetment bottom plates at two sides respectively, the size of the support beam can be determined according to structural internal force calculation, the bottom of the revetment bottom plate is sequentially provided with a plain concrete cushion layer and stones, the river bottom between the support beam and the support beam is fully paved, the overall stability of the foundation can be further increased, paving materials are stones or stones, the thickness of the paving materials is not less than 300mm, a revetment drainage hole is formed in the revetment wall body, a sand and gravel reverse filtering layer is arranged on the outer side of the revetment drainage hole, a drainage hole vertically penetrating through the pavement of the river bottom is formed in the river bottom paving layer, the jacking effect of underground water on the river bottom paving under the working conditions of river water sudden drop and the like is prevented, the distance between the drainage hole and the drainage hole along the longitudinal direction of the river channel is 1-1.5 m, a settlement joint is reserved every 10-15m of the revetment bottom plate along the length direction of the river channel, the width of the seam is 20-30 mm.

The beneficial effects of the utility model reside in that: simple structure, it is convenient to be under construction, replaces the pile foundation through a supporting beam, carries out mutual counter-bracing to the common soil and water pressure in both sides and offsets, refutes the symmetrical roof beam of bank bottom plate through setting up, and the resistance of the level of can furthest's increase refutes the bank, lays through setting up the level between propping the roof beam and can resist the river bottom again to the uplift of bank and top, has solved the river course and has refuted the anti-skidding stability of bank and the overall stability requirement of bank slope.

Drawings

FIG. 1 is a front view of embodiment 1;

fig. 2 is a schematic view of the connection of the sill bottom plate and the support beam of embodiment 1;

fig. 3 is a schematic view of the connection of the sill bottom plate and the support beam of embodiment 2;

fig. 4 is a schematic view of the connection of the sill bottom plate and the support beam of embodiment 3;

FIG. 5 is a front view of embodiment 3.

In the figure: 1. a support beam; 2. a sill bottom plate; 3. a lapel wall body; 4. a plain concrete cushion layer; 5. a stone block; 6. a drain hole of the revetment; 7. a sand-gravel reverse filter layer; 8. a transverse tie beam; 9. and (6) positioning the pile.

Detailed Description

The present invention will be further described with reference to the drawings, but the scope of the present invention is not limited thereto.

Example 1

As shown in fig. 1 and 2, a novel revetment suitable for soft soil foundation comprises a support beam 1, a revetment bottom plate 2 and a revetment wall body 3, wherein the support beam 1 is horizontally and vertically and rigidly connected with the revetment bottom plates 2 on two sides, the end part of the support beam 1 extends into the revetment bottom plate 2, water and soil pressures on two sides are mutually supported and eliminated through the support beam 1, the distance between the support beam 1 and the support beam 1 is 5-10 m, a plain concrete cushion layer 4 and a rock block 5 are sequentially arranged at the bottom of the revetment bottom plate 2, a river bottom between the support beam 1 and the support beam 1 is fully paved, the revetment wall body 3 is arranged above the revetment bottom plate 2, a revetment drainage hole 6 is formed in the revetment wall body 3, and a sand-gravel reverse filter layer 7 is arranged outside the revetment drainage hole 6; this novel refute bank is applicable to the river course of river course width less than or equal to 10 meters.

Example 2

As shown in fig. 3, a novel bank of refuting suitable for soft soil foundation, including a supporting beam 1, refute bank bottom plate 2, refute bank wall body 3 and horizontal tie beam 8, refute bank bottom plate 2 horizontal rigid connection with refuting of both sides for a supporting beam 1, a supporting beam 1 tip is deeply refuted in the bank bottom plate 2, carry out mutual counterstay through supporting beam 1 to the soil and water pressure of both sides and disappear, horizontal tie beam 8 is located between a supporting beam 1 and a supporting beam 1, it becomes latticed structure to link a supporting beam 1, increase the wholeness of support system, the size of horizontal tie beam 8 is less than a supporting beam 1, this novel bank of refuting is applicable to the river course of width for less than or equal to 15 meters.

Example 3

As shown in fig. 4 and 5, a novel refute bank suitable for soft soil foundation, including a supporting beam 1, refute bank bottom plate 2, refute bank wall body 3, horizontal tie beam 8 and spud pile 9, refute bank bottom plate 2 horizontal rigid connection of a supporting beam 1 and both sides, the tip of a supporting beam 1 is deeply refuted in bank bottom plate 2, carry out mutual antitorque through supporting beam 1 to the soil and water pressure of both sides and cancel, refute bank wall body 3 and locate refute bank bottom plate 2's top, horizontal tie beam 8 is located between a supporting beam 1 and the supporting beam 1, the lower surface of the junction of horizontal tie beam 8 and a supporting beam 1 is equipped with spud pile 9, can reduce the span of a supporting beam 1 system, spud pile 9 downwardly extending, length is 8-12 meters, this novel refute bank is applicable to the river course that the width is less than or equal to 20 meters.

The construction method comprises the following steps:

1) carrying out cofferdam construction on the river channel, draining river water of a construction site, allowing the river channel to be constructed in a cutoff way if the construction period is in a non-flood period, adopting a transverse cofferdam as the river channel cofferdam, and burying drainage pipes to communicate the river water at two ends of the cutoff river channel section; if the construction is carried out in the flood season, the cutoff construction of the river channel is not allowed, and the river channel cofferdam can adopt a half-width constructed longitudinal cofferdam;

2) the river channel ridge foundation pit enclosure construction and the earthwork excavation construction are generally carried out by steel sheet pile enclosure;

3) the rock blocks 5 are arranged below the sill bottom plate 2 and below the supporting beam 1, the sharp ends of the rock blocks 5 are downwards embedded into soft soil, and then fine stone concrete is used for pouring seams to enhance the paving integrity of the river bottom;

4) laying a plain concrete cushion layer 4 above the stones 5;

5) refute bank bottom plate 2 and a supporting beam 1 construction: arranging the refuge sill bottom plates 2 above the plain concrete cushion layers 4, connecting and arranging supporting beams 1 between the refuge sill bottom plates 2, arranging transverse connecting beams 8 and positioning piles 9 according to the width of a river channel, reserving a settlement joint for each 10-15m of the refuge sill bottom plates 2 along the length direction of the river channel, wherein the width of the joint is 20-30mm, and filling asphalt hemp threads in the joint;

6) refute bank wall body 3's construction: when the revetment bottom plate 2 and the supporting beam 1 reach the designed strength, the revetment wall body 3 is constructed, a revetment drain hole 6 is reserved in the revetment wall body 3, the revetment drain hole 6 adopts a UPVC pipe with DN100mm, the revetment drain hole 6 is declined to the direction of the upstream face of the revetment by 5-10% of gradient, a settlement joint needs to be reserved every 10-15m along the length direction of the river channel during the construction of the revetment wall body 3, the position of the reserved joint needs to be consistent with the revetment bottom plate 2, and the requirement of the reserved joint is also the same as that of the revetment bottom plate 2;

7) the river bottom between the supporting beam 1 and the supporting beam 1 is fully paved, the paving material is made of rock blocks or rubbles, the thickness is not less than 300mm, water drainage holes need to be reserved in a river bottom pavement layer during construction, the water drainage holes vertically penetrate through the river bottom for paving, and the longitudinal and transverse spacing along a river channel is 1-1.5 m;

8) and (3) constructing back backfill on two sides of the refuge ridge and dismantling the enclosure structure, wherein the backfill is generally made of a water-permeable material and is compacted in a layering manner.

Claims

1. The utility model provides a novel refute bank suitable for soft soil foundation, its characterized in that includes supporting beam (1), refutes bank bottom plate (2) and refutes bank wall body (3), and supporting beam (1) refutes bank bottom plate (2) horizontal rigid connection with both sides, and the tip of supporting beam (1) is deeply refuted in bank bottom plate (2), carries out mutual counter-support through supporting beam (1) to the soil and water pressure of both sides and offsets, refutes bank wall body (3) and locates the top of refuting bank bottom plate (2).

2. A novel revetment suitable for soft soil foundations as claimed in claim 1, wherein the distance between the supporting beam (1) and the supporting beam (1) is 5-10 m, and the supporting beam (1) is vertically connected to the revetment bottom plates (2) on both sides.

3. A new revetment suitable for soft ground according to claim 2, wherein the new revetment is suitable for river channels with a channel width of 10m or less.

4. A new type of revetment suitable for soft soil foundations as claimed in claim 2, characterized in that between the supporting beams (1) and (1) are also placed the transverse tie beams (8), the new type of revetment is suitable for river channels with width less than or equal to 15 meters.

5. A novel revetment suitable for soft soil foundations as claimed in claim 2, wherein a transverse connecting beam (8) is provided between the supporting beam (1) and the supporting beam (1), a positioning pile (9) is provided on the lower surface of the joint of the transverse connecting beam (8) and the supporting beam (1), the positioning pile (9) extends downwards and has a length of 8-12 m, and the novel revetment is suitable for river channels with a width of 20 m or less.

6. A novel refuge sill suitable for soft soil foundations as claimed in any one of claims 3-5, characterized in that the bottom of the refuge sill bottom plate (2) is sequentially provided with a plain concrete cushion (4) and a rock block (5), and the river bottom between the supporting beam (1) and the supporting beam (1) is fully paved, and the fully paved thickness is not less than 300 mm.

7. A new type of refuge sill adapted for soft soil foundations as claimed in any one of claims 3 to 5, characterized in that the refuge sill wall body (3) is provided with a refuge sill drain hole (6), and the outside of the refuge sill drain hole (6) is provided with a sand and gravel reverse filter layer (7).

8. A novel revetment suitable for soft soil foundations as claimed in claim 6, wherein the bottom of river pavement is provided with drainage holes vertically penetrating through the bottom of river pavement, and the distance between the drainage holes along the longitudinal and transverse directions of the river is 1-1.5 m.

9. A new type of revetment suitable for soft soil foundations as claimed in claim 6, characterized in that there is a settlement joint left in the revetment bottom plate (2) every 10-15m along the length direction of the river course, the width of the joint is 20-30 mm.