CN115316186A

CN115316186A - Circular pipe pile matched with tree planting and slope fixing for soil slope

Info

Publication number: CN115316186A
Application number: CN202211098637.XA
Authority: CN
Inventors: 徐玮彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-11-11
Anticipated expiration: 2042-09-09
Also published as: CN115316186B

Abstract

A circular pipe pile used for tree planting and slope fixing matching of soil slope comprises a pipe pile body formed by rolling a steel plate, wherein the steel plate is provided with a first long edge and a second long edge, the first long edge and the second long edge form an axial movable interface capable of being lapped and locked, the length of the pipe pile body is smaller than that of a main root after a straight root system arbor used for tree planting is made into a tree, and a plurality of fibrous root outlet holes are formed in a pipe wall on one side of the axial movable interface. One embodiment is also provided with a lock head, a clamping hole and an elongated lock rod, wherein the elongated lock rod can lock the axial movable interface. The round pipe piles form a clutch type rolling sheet structure, the round pipe piles can play a role in engineering fixation in the sapling stage, and the pipe pile bodies can be pulled away after locking is released in the adult stage, so that the roots of the pipe piles can be restored to a normal water and soil environment. The round pipe pile can be repeatedly used after being pulled out of the soil body, so that the soil fixation engineering cost can be saved, and the effects of short construction period, low construction cost and reduction of soil body pollution are achieved.

Description

Circular pipe pile matched with tree planting and slope fixing for soil slope

Technical Field

The invention relates to the technical field of slope reinforcement, in particular to a circular pipe pile used in soil slope planting and slope fixing matching.

Background

In the foundation engineering construction such as mountain road construction, hydraulic and hydroelectric engineering and the like, the soil slope needs to be reinforced in order to improve the stability and safety of the soil slope. In the prior art, a method for reinforcing a side slope by arranging a protective net only can prevent soil on the surface layer of the side slope from falling off. There are also methods of fixing slope by planting trees and multi-point arrangement of cement piles or steel pipe piles. For the fixation of the soil slope, if a tree planting and reinforcing mode is directly adopted, the deep depth of the slope in the vertical direction is not enough and the soil fixing effect is not good because the root system is short, the root quantity is less and the growth direction of the main root is vertical growth in the early stage of tree planting. If the engineering measures are simply taken, the coordination with the natural environment is not facilitated. At present, most of soil slope treatment methods implement slope reinforcement measures and then carry out tree planting and greening, and the construction period is long.

The Chinese patent application CN106818264A discloses a circular pipe pile for reinforcing a side slope by matching with a straight root system arbor, the circular pipe pile can be placed into a soil side slope perpendicular to the slope surface, and the circular pipe pile is provided with a fibrous root outlet hole and a nutrient solution conveying pipe; the main root system of the tree can grow along the circular pipe pile and is vertical to the slope surface in the early stage of growth, and the main root grows downwards naturally after exceeding the circular pipe pile. The technical scheme implements the engineering slope fixing measures and tree planting synchronously, thereby saving the construction period and enhancing the slope fixing effect. The disadvantages are that: 1. although the far end of the root can extend out of the tubular pile to grow freely, the length of the common tubular pile is generally more than 3 meters, so that the main body part of the tree root is limited in the tubular pile cavity for a long time, and the water and fertilizer absorption of the root is seriously influenced; 2. the radial growth restriction problem exists at the root in the tubular pile cavity, and is particularly prominent when the tree body enters the adult tree stage, and the tree body can be killed seriously. Although the technical scheme adopts a method of expanding the pipe diameter (to 60-80 cm) and matching the nutrient solution conveying pipe in order to avoid the problems, the problems are not completely solved, and the popularization and the application of the technology are influenced.

Disclosure of Invention

The invention aims to provide a circular pipe pile matched with soil slope planting and slope fixing.

The technical scheme includes that the pipe pile comprises a pipe pile body, the pipe pile body is formed by rolling a steel plate, the steel plate is provided with a first long edge and a second long edge, the first long edge and the second long edge form an axial movable connector capable of being lapped and locked in a rolling state, the length of the pipe pile body is smaller than the length of a main root after a straight root system arbor for tree planting is grown, and a plurality of fibrous root outlet holes are formed in the pipe wall on one side of the axial movable connector.

The principle is as follows: the soil slope is divided into an upper weak layer and a lower bearing layer, the invention is matched with the tree planting slope fixing, and the tree species of the tree planting slope fixing adopts a root system arbor. The circular tube pile forms a clutch type sheet rolling structure, the axial movable interfaces (the first long edge and the second long edge) are connected and locked to form a cylindrical common tubular pile structure, and the axial movable interfaces (the first long edge and the second long edge) are unlocked to be in a separated state to form a sheet rolling structure. According to the requirement, the round tubular pile placed in the soil body can be converted into a rolling structure from a tubular pile structure. The locking structure of the axially movable interface may take a variety of forms.

The construction and later management steps of the round pipe pile are as follows:

1) Preparing materials: determining a proper variety of the tree with the taproot system according to the construction environment; according to side slope actual conditions and used root system arbor, choose the round tubular pile of suitable length, diameter, thickness for use, establish first long limit and second long limit into the lock-out state.

2) Preparation before construction: the field is flat, the mechanical walking track is laid, and the machine enters the field.

3) Placing the circular pipe piles into the soil slope: the circular pipe pile is placed into the soil body of the soil slope along the direction vertical to the slope surface, and one side of the axial movable connector provided with the fibril outlet hole is required to be kept upward.

4) Planting arbor: the vertical root system arbor is planted in the circular pipe pile, and the root system direction of the vertical root system arbor extends along the oblique downward direction of the inner wall of the pipe and is perpendicular to the slope surface.

5) And (3) finishing construction: and after the straight root arbor is planted, dismantling the construction equipment and cleaning the field.

6) Unlocking the axial movable interface: along with the growth of root system arbor, the root system distal end portion extends and surpasss pipe pile lower extreme mouth of pipe, gos deep into the layer of holding power, turns to naturally under the action of gravity, the downward growth. When the tree body gradually enters an adult tree, the oblique root part positioned in the tube cavity is thickened, and the radial growth tends to be limited. At this time, the locking state of the axial movable interface (the first long edge and the second long edge) can be released, the first long edge and the second long edge are separated, and the circular pipe pile is immediately converted into a rolling structure.

7) Draw-off round tube pile (rolled sheet structure): according to the slope fixing requirement of the soil slope and the actual situation of the oblique root part which is obliquely inserted into the slope body for growing, the circular tube pile (coiled sheet structure) can be temporarily reserved or pulled out of the soil body. If the circular pipe pile (rolled sheet structure) needs to be kept in the soil body, other operations are not needed after the locking is released, the axial movable joint is continuously extruded by the radial growth of the oblique root, the opening can be gradually expanded, the fibrous roots at the opening are naturally increased, and the effect of increasing the water and fertilizer supply is achieved. When the oblique root can replace a round pipe pile to realize the soil fixing function, a mechanical device can be adopted to pull the round pipe pile in a rolled sheet structure out of the soil body, the water and fertilizer isolation of the original pipe wall to the oblique root is avoided, the oblique root returns to the normal water and soil environment, the fibrous roots around the oblique root can naturally proliferate, and the soil fixing effect is enhanced year by year. Before the step of drawing-off operation, a mechanical device can be used for knocking and pressing the round pipe pile downwards to enable the round pipe pile to be inserted downwards by about 30cm, and the operation can be used for withdrawing part of fibrous roots penetrating out of the fibrous root outlet hole into the pipe, so that the damage of the drawing-off operation to the root system is reduced.

The improved structure is characterized in that a plurality of lock heads with axial lock holes are arranged on the inner side of the first long edge, a clamping hole matched with the lock heads is formed in the second long edge, and the improved structure further comprises a long lock rod which can be inserted into the axial lock holes to lock the axial movable interface. The locking state of the axial movable interface can be released by upwards pulling the long lock rod along the axial direction.

Another improvement is that the device also comprises an inner-rolling extension sleeve arranged at the end part of the second long edge. The locking structure is buried in the soil body for a long time, the problem of easy corrosion exists, the locking structures such as the lock head and the long lock rod can be protected by the inward-rolling extension sleeve, and the corrosion is reduced.

The improvement is that the first long edge is provided with a first inner curled edge, the second long edge is provided with a second inner curled edge, and the improved structure further comprises an elongated latch member provided with a clamping groove, wherein the elongated latch member can lock the first inner curled edge and the second inner curled edge. The locking state of the axial movable interface can be released by upwards pulling the long clamping and locking piece along the axial direction.

The beneficial effects of the invention are:

1. the circular tube pile is arranged into a clutch type sheet rolling structure, the first long edge and the second long edge are connected and locked to form a cylindrical common tubular pile structure, and the first long edge and the second long edge are unlocked and separated to form the sheet rolling structure. In the early growth stage of the tree body, the circular pipe piles play a role in engineering fixation on the soil slope, and the effect of fixing the slope is achieved; when the tree grows into an adult stage, the circular tube pile leads the radial growth of the oblique root to tend to be in a limited state along with the thickening of the root, through evaluation, when the oblique root which is obliquely inserted into the slope body to grow can basically replace the circular tube pile to realize the soil fixing function, the locking state of the axial movable interface can be released, the tubular pile body which is in the rolled sheet structure is pulled out of the soil body and is restored to the normal water and soil environment, the root grows freely, the soil fixing effect is fully exerted, and the soil fixing effect is enhanced year by year.

2. The round pipe pile can be repeatedly used after being pulled out of a soil body, and the cost of soil fixing engineering can be saved.

3. The method adopts double measures of engineering slope fixation of the soil slope and straight root system arbor slope fixation, not only solves the problem that the straight root system arbor has poor reinforcement effect in the early stage of slope fixation due to short root system, but also avoids the problem that the construction period is long in the stage implementation of conventional engineering slope fixation and straight root system arbor slope fixation, and has the advantages of short construction period and low construction cost.

4. The conventional circular pipe pile is kept in the soil body for a long time and has the problem of soil body pollution.

Drawings

FIG. 1 is a schematic diagram of the principle of slope fixation in combination with tree planting according to the present invention.

FIG. 2 is a cross-sectional view of the latch structure of the first embodiment of the present invention (shown in a disengaged condition).

FIG. 3 is a cross-sectional view of the latch structure of the first embodiment of the present invention (shown in a locked condition).

Fig. 4 is a schematic sectional structure view of a tubular pile body according to a first embodiment of the invention.

Fig. 5 is a schematic perspective view of the first embodiment of the present invention.

Fig. 6 is an enlarged view of a portion of the structure of fig. 5.

FIG. 7 is a cross-sectional view of a latch structure according to a second embodiment of the present invention (shown in a locked condition).

Fig. 8 is a sectional view of the tubular pile body according to the second embodiment of the present invention.

Fig. 9 is a partial isometric view of an elongated latch member according to a second embodiment of the present invention.

FIG. 10 is a cross-sectional view of a latch structure of a third embodiment of the present invention (showing an inner wrap extension sleeve configuration).

In the figure: the pipe pile comprises a pipe pile body 1, a first long edge 2, a second long edge 3, an axial movable connector 4, a fibrous root outlet 5, an axial lock hole 6, a lock head 7, a clamping hole 8, a long lock rod 9, an inward-rolling type extending sleeve 10, a first inward-rolling edge 11, a second inward-rolling edge 12, a long clamping piece 13, an oblique root 14, a weak layer 20 and a holding layer 21.

Detailed Description

As shown in fig. 1 to 10, an embodiment of the present invention adopts the following technical solution, including a tubular pile body 1, where the tubular pile body 1 is formed by rolling a steel plate, the steel plate is provided with a first long side 2 and a second long side 3, the first long side 2 and the second long side 3 form an axially movable joint 4 capable of being lapped and locked in a rolling state, the length of the tubular pile body 1 is smaller than the length of a main root after a straight root system tree for tree planting is made, and a plurality of fibrous root outlet holes 5 are provided on a tube wall on one side of the axially movable joint 4.

The principle is as follows: the soil slope is divided into an upper weak layer 20 and a lower bearing layer 21, the invention is matched with the tree planting and slope fixing, and the tree species of the tree planting and slope fixing adopts a root system arbor. The circular tube pile forms a clutch type sheet rolling structure, the axial movable type interface 4 (the first long edge 2 and the second long edge 3) is connected and locked to form a cylindrical common pipe pile structure, and the axial movable type interface 4 (the first long edge 2 and the second long edge 3) is unlocked to be in a separated state to form the sheet rolling structure. According to the requirement, the round pipe pile placed in the soil body can be converted into a rolling structure from a pipe pile structure. The locking structure of the axially movable interface 4 may take various forms.

1) Preparing materials: determining proper varieties of trees with taproot systems, such as poplar trees, pine trees, elm trees and the like according to construction environments; according to side slope actual conditions and used root system arbor, choose the round tubular pile of suitable length, diameter, thickness for use, establish first long limit 2 and the long limit 3 of second into locking state. The circular tube pile of the specific embodiment has the dimensions of 3m in length, 45cm in diameter and 5mm in steel plate thickness.

3) Placing the circular pipe piles into the soil slope: the round pipe pile is placed into the soil body of the soil slope along the direction vertical to the slope surface, and one side of the axial movable connector 4 provided with the fibrous root outlet 5 is required to be kept upward.

4) Planting arbor: the vertical root arbor is planted in the round pipe pile, the root direction of the vertical root arbor extends along the oblique lower direction of the inner wall of the pipe, and the vertical direction is slope surface.

5) And (3) finishing construction: and after the root system arbor is planted, dismantling construction equipment and cleaning a field.

6) Unlocking the axial movable interface 4: along with the growth of root system arbor, the root distal end portion extends and surpasss pipe pile lower extreme mouth of pipe, gos deep into the layer of holding power 21, turns to naturally under the action of gravity, the downward growth. When the tree body gradually enters an adult tree, the oblique root 14 positioned in the tube cavity is thickened, and the radial growth tends to be limited, and at the stage, the oblique root 14 in the tubular pile has enough thickness, length and strength and can basically replace a round tubular pile to realize the soil fixing function. At this time, the locking state of the movable axial connector 4 (the first long side 2 and the second long side 3) can be released, the first long side 2 and the second long side 3 are separated, and the circular tube pile is immediately converted into a rolled sheet structure.

7) Drawing away the round pipe pile (into a rolled sheet structure): the tubular pile (in a rolled sheet structure) may be temporarily retained or withdrawn from the soil body according to the slope securing requirements of the soil slope and the actual conditions of the oblique root 14. If the circular pipe pile (rolled sheet structure) needs to be kept in the soil body, other operations are not needed after the locking is released, the axial movable joint 4 is continuously extruded by the radial growth of the oblique root 14, the opening is gradually expanded, the number of fibrous roots at the opening is naturally increased, and the effect of increasing the water and fertilizer supply is achieved. When the oblique root 14 can replace a round pipe pile to realize the soil fixing function, a mechanical device can be adopted to pull the round pipe pile in a rolled sheet structure out of the soil body, so that the water and fertilizer isolation of the original pipe wall to the oblique root 14 is avoided, the oblique root 14 returns to the normal water and soil environment, the fibrous roots around the oblique root 14 can be naturally proliferated, and the soil fixing effect is enhanced year by year. Before the drawing-off operation step, the round pipe pile can be knocked down by a mechanical device to enable the round pipe pile to be pricked downwards by about 30cm, and the operation can be used for withdrawing part of fibrous roots penetrating out of the fibrous root outlet hole 5 into the pipe, so that the damage of the drawing-off operation to the root system is reduced.

As shown in fig. 2 to 6, in an improvement, a plurality of locking heads 7 with axial locking holes 6 are arranged on the inner side of the first long edge 2, a locking hole 8 matched with the locking head 7 is arranged on the second long edge 3, and the locking device further comprises an elongated locking rod 9, and the elongated locking rod 9 can be inserted into the axial locking hole 6 to lock the axial movable interface 4. The locking state of the axial movable interface 4 can be released by pulling the long lock rod 9 upwards along the axial direction.

As shown in fig. 10, another improvement is that the device further comprises an inner-rolling extension sleeve 10 arranged at the end part of the second long side 3. The locking structure is buried in the soil body for a long time, the problem of easy corrosion exists, the locking structures such as the lock head 7 and the long lock rod 9 can be protected by the inward-rolling extension sleeve 10, and the corrosion is reduced.

As shown in fig. 7 to 9, a further improvement is that the first long side 2 is provided with a first inner bead 11, the second long side 3 is provided with a second inner bead 12, and the device further comprises an elongated locking member 13 provided with a slot, wherein the elongated locking member 13 can lock the first inner bead 11 and the second inner bead 12. The locking state of the axial movable interface 4 can be released by pulling the long-type locking piece 13 upwards along the axial direction.

The invention is not limited to the specific structure of the above embodiment, and other equivalent structures are within the scope of the invention.

Claims

1. The utility model provides a soil slope is planted tree and is fixed round tubular pile that slope matching used, includes the tubular pile body, its characterized in that: the tubular pile body is rolled up by the steel sheet and is made, the steel sheet is equipped with first long limit and the long limit of second, and the movable interface of axial that can the overlap joint and lock is constituteed on first long limit and the long limit of second under the state of rolling over, and tubular pile body length is less than the length of main root after the used radical arbor of tree planting becomes the tree, is equipped with a plurality of fibrous roots on the pipe wall of the movable interface one side of axial and exports.

2. The round pipe pile used for planting trees on soil slope and fixing slope in a matched mode according to claim 1, is characterized in that: the movable type connector locking device is characterized in that a plurality of locking heads with axial locking holes are arranged on the inner side of the first long edge, a clamping hole matched with the locking heads is formed in the second long edge, and the movable type connector locking device further comprises a long locking rod which can be inserted into the axial locking holes to lock the movable type connector in the axial direction.

3. The round pipe pile used for planting trees on soil slope and fixing slope in a matched mode according to claim 2, is characterized in that: and the inner-rolling type extension sleeve is arranged at the end part of the second long edge.

4. The round pipe pile used for planting trees on soil slope and fixing slope in a matched manner according to claim 1, is characterized in that: first long limit is equipped with first interior turn-up, the second long limit is equipped with second interior turn-up, still includes an elongated card latch spare that is equipped with the draw-in groove, and elongated card latch spare can be with first interior turn-up and the locking of second interior turn-up.