CN110952530B - Gravel pile for soft soil foundation - Google Patents

Abstract

The present invention discloses a gravel pile for soft soil foundation, comprising a gravel layer constituting the main body of the gravel pile; a mud layer enclosing the gravel layer and connecting the gravel layer with an external foundation; a liquid guide tube at least arranged in the gravel layer and connecting the gravel layer with an external foundation; the liquid guide tube collects the water in the mud layer and the gravel layer, and outputs the collected water to the external foundation through its own structure and liquid deadweight. The present invention solves the technical problem that the construction efficiency is low and the construction quality is affected because the water in the soft soil foundation is not easy to be diverted and the soft soil foundation solidifies slowly.

Description

Stone piles for soft soil

Technical Field

The present invention relates to the field of soft soil foundation engineering for roads and bridges, and in particular, to a crushed stone pile for soft soil foundation.

Background Art

With the increasing number of road expansion projects, the expansion of bridges and roads on soft soil foundations has also become a research topic. Due to the liquefaction and instability of the soft soil foundation structure, the expansion project on the soft soil foundation is more inclined to foundation reinforcement and solidification of the soft soil foundation. The overlap of the new and old roadbeds on the soft soil foundation has a lot to do with the degree of solidification of the soft soil foundation itself. How to achieve the solidification of the soft soil foundation in a shorter time determines the efficiency and quality of the construction.

Summary of the invention

The main purpose of the present invention is to provide a gravel pile for soft soil foundation to solve the technical problem that the construction efficiency is low and the construction quality is affected due to the difficulty in diverting moisture in the soft soil foundation and the slow solidification of the soft soil foundation.

In order to achieve the above object, a gravel pile for soft soil foundation is provided.

The crushed stone pile for soft soil foundation according to the present invention comprises:

The gravel layer constitutes the main body of the gravel pile;

A mud layer enclosing the gravel layer and connecting the gravel layer with an external foundation;

a fluid conduit, at least arranged in the gravel layer, connecting the gravel layer and an external foundation;

The liquid conduit collects the moisture in the mud layer and the gravel layer, and outputs the collected moisture to the external foundation through its own structure and the dead weight of the liquid.

Furthermore, the catheter is a steel tube.

Furthermore, the steel pipe is provided with structural holes.

Furthermore, a geotextile is provided between the liquid guiding pipe and the gravel layer.

Furthermore, the geotextile surrounds the liquid guiding tube.

Furthermore, the liquid guiding tube is composed of a plurality of sleeve components.

Furthermore, the sleeve component includes a first sleeve component arranged at the bottom end of the gravel pile and a second sleeve component arranged on the first sleeve component.

Furthermore, the first sleeve component includes a fixing port for fixing the first sleeve component in the gravel layer, and a fixing port for connecting the second sleeve component.

Furthermore, a fixing port is provided at one end of the second sleeve component, and a port size at the other end matches the fixing port.

Furthermore, the liquid guide tube is at least arranged at the bottom and/or the middle of the gravel pile.

In the embodiment of the present invention, the structure of the gravel pile is improved by adding a liquid guide tube to the gravel pile, so as to achieve the purpose of draining the moisture in the soft soil foundation to the bottom soil layer through the internal and external structures of the gravel pile, thereby achieving the technical effect of rapid solidification of the soft soil foundation, and further solving the technical problem of low construction efficiency and affected construction quality due to the fact that the moisture in the soft soil foundation is not easy to be drained and the soft soil foundation solidifies slowly.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The drawings and descriptions of the schematic embodiments of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

FIG. 1 is a schematic structural diagram of a gravel pile for a soft soil foundation according to an embodiment of the present invention.

Reference numerals

1: gravel layer; 2: mud layer; 3: liquid guide tube; 301: first set of components; 302: second set of components; 4: geotextile; 5: fixed port; 6: fixed port.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

During the construction process, the use of pile foundations to reinforce soft soil foundations can effectively stabilize the liquefaction degree of soft soil foundations. At the same time, the pile foundations can be used as guide columns for liquids to guide the moisture in the foundation into the strata or underground rivers under the soft soil foundation, which is conducive to accelerating the solidification of the soft soil foundation. How to better use pile foundations to solidify soft soil foundations and maintain the solidification degree of soft soil foundations in the later stage has become a new research direction.

As shown in FIG1 , the present invention relates to a gravel pile for soft soil foundation, comprising a gravel layer 1, a mud layer 2 and a liquid conduit 3. The gravel layer 1 constitutes the main body of the gravel pile, the mud layer 2 surrounds the gravel pile 1 and connects the gravel layer 1 with an external foundation; the liquid conduit 3 is at least arranged in the gravel layer 1 and connects the gravel layer 1 with an external foundation. The liquid conduit 3 collects the moisture in the mud layer 2 and the gravel layer 1, and outputs the collected moisture to the external foundation through its own structure and the dead weight of the liquid. In a preferred embodiment of the present invention, the mud used to make the gravel pile compacts and reinforces the gravel gaps in the gravel layer 1 and the gaps between the gravel layer 1 and the liquid conduit 3. At the same time, the mud wraps the outside of the gravel layer 1 to form a mud layer 2 surrounding the gravel layer 1.

In a preferred embodiment of the present invention, the liquid guide tube 3 is a steel tube, and further preferably, the steel tube is provided with structural holes for air circulation and water collection. In a further preferred embodiment of the present invention, a geotextile 4 is provided between the liquid guide tube 3 and the gravel layer 1, and the geotextile 4 surrounds the liquid guide tube 3 to reduce the direct contact between the liquid guide tube 3 and the gravel layer 1, protect the liquid guide tube 3, and reserve a certain amount of air flow space for the overall structure of the liquid guide tube 3. In a preferred embodiment of the present invention, a reinforcement net is included, and the reinforcement net is arranged on the periphery of the gravel layer 1 to reinforce the overall structure of the gravel pile. At the same time, during the molding and casting process of the gravel pile, the scope of operation is demarcated to facilitate vibration and compaction.

In a preferred embodiment of the present invention, the catheter 3 is composed of a plurality of sleeve components, the sleeve components at least comprising a first sleeve component 301 arranged at the bottom end of the gravel pile and a second sleeve component 302 arranged on the first sleeve component 301; the first sleeve component 301 comprises a fixing port (5) for fixing the first sleeve component 301 in the gravel layer (1), and a clamping port 6 for connecting the second sleeve component 302, the second sleeve component 302 is provided with a clamping port 6 at one end, and the port size at the other end matches the size of the clamping port 6. In a preferred embodiment of the present invention, the fixing port 5 of the first sleeve component 301 is flush with the lower port of the gravel pile, and the structural form of the fixing port 5 is consistent with the structural form of the gravel pile, for example, when the lower port of the gravel pile is conical, the fixing port 5 of the first sleeve component 301 is also conical. The arrangement of the fastening port 6 of the second sleeve member 302 and the fastening port 6 of the first sleeve member 301 facilitates the sleeve connection between the first sleeve member 301 and/or multiple second sleeve members 302. The separate arrangement of the first sleeve member 301 and the second sleeve member 302 makes the overall structure of the catheter 3 phased, which can be adjusted in time according to the construction conditions on site and the specific construction plan.

In a further preferred embodiment of the present invention, the liquid guide pipe 3 is at least arranged at the bottom and/or the middle of the gravel pile. Since the moisture in the soft soil foundation is concentrated downward in the middle and lower part of the gravel pile, the liquid guide pipe is preferably arranged in the middle and lower part of the gravel pile.

In the embodiment of the present invention, the structure of the gravel pile is improved by adding a liquid guide tube to the gravel pile, so as to achieve the purpose of draining the moisture in the soft soil foundation to the bottom soil layer through the internal and external structures of the gravel pile, thereby achieving the technical effect of rapid solidification of the soft soil foundation, and further solving the technical problem of low construction efficiency and affected construction quality due to the fact that the moisture in the soft soil foundation is not easy to be drained and the soft soil foundation solidifies slowly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (5)

1. A gravel pile for soft soil foundation, characterized by comprising: A gravel layer (1), constituting the main body of the gravel pile; A mud layer (2) enclosing the gravel layer (1) and connecting the gravel layer (1) with an external foundation; A fluid conduit (3) is at least arranged in the gravel layer (1) and connects the gravel layer (1) and an external foundation; The liquid guide pipe (3) collects the water in the mud layer (2) and the gravel layer (1), and outputs the collected water to the external foundation through its own structure and the deadweight of the liquid; The liquid guiding tube (3) is composed of a plurality of sleeve components; The sleeve component comprises a first sleeve component (301) arranged at the bottom end of the gravel pile and a second sleeve component (302) arranged on the first sleeve component (301); The first sleeve component (301) comprises a fixing port (5) for fixing the first sleeve component (301) in the gravel layer (1), and a fixing port (6) for connecting the second sleeve component (302); One end of the second sleeve component (302) is provided with a fixing port (6), and the port size of the other end matches the fixing port (6); The liquid guiding tube (3) is a steel tube. 2. The gravel pile for soft soil foundation according to claim 1, characterized in that structural holes are provided on the steel pipe. 3. The gravel pile for soft soil foundation according to claim 1, characterized in that a geotextile (4) is provided between the liquid guide tube (3) and the gravel layer (1). 4. The gravel pile for soft soil foundation according to claim 3, characterized in that the geotextile (4) surrounds the liquid guide tube (3). 5. The gravel pile for soft soil foundation according to claim 1, characterized in that the liquid guide tube (3) is at least arranged at the bottom and/or the middle of the gravel pile.