WO2017071113A1 - 水泥土搅拌桩防护式地下管廊 - Google Patents

水泥土搅拌桩防护式地下管廊 Download PDF

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Publication number
WO2017071113A1
WO2017071113A1 PCT/CN2016/000499 CN2016000499W WO2017071113A1 WO 2017071113 A1 WO2017071113 A1 WO 2017071113A1 CN 2016000499 W CN2016000499 W CN 2016000499W WO 2017071113 A1 WO2017071113 A1 WO 2017071113A1
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WIPO (PCT)
Prior art keywords
cement
pipe gallery
soil mixing
underground pipe
pile
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PCT/CN2016/000499
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English (en)
French (fr)
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周兆弟
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周兆弟
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Publication of WO2017071113A1 publication Critical patent/WO2017071113A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles
    • E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete

Definitions

  • the invention belongs to the technical field of construction and relates to a protective underground pipe gallery for cement soil mixing piles.
  • the underground pipe gallery also known as the common ditch, is a municipal public facility that implements unified planning, design, construction, and maintenance, and is built underground in the city for laying municipal public pipelines. It refers to a public tunnel used for centralized laying of municipal, pipelines such as electricity, communications, radio and television, water supply, drainage, heat, and gas in underground cities.
  • the State Council attaches great importance to the promotion of the construction of urban underground integrated pipe corridors. Since 2013, it has issued the “Opinions of the State Council on Strengthening Urban Infrastructure Construction” and the “Guiding Opinions of the General Office of the State Council on Strengthening the Management of Urban Underground Pipelines”. Pilot work on the construction of the pipe gallery.
  • the Chinese patent document discloses an integrated underground pipe gallery with a compensating device [Application No.: 201410559745.1], comprising a plurality of pipe joint sealing strips and a plurality of pipe joint units connected end to end, the pipe joint sealing strips being arranged adjacent to each other
  • the pipe joint unit includes a pipe joint and a plurality of pipes arranged in parallel, and the pipe is disposed on a bottom surface of the pipe joint through a fixing seat, and the pipe joints are respectively provided at both ends of the pipe joint a pipe joint telescopic connecting pipe having a shape of a pipe joint, wherein the pipe ends are respectively provided with a pipe expansion joint pipe, and the pipe joint expansion pipe is provided with a flange one end away from the pipe joint, the pipe A flange 2 is disposed at one end of the telescopic connecting pipe away from the pipe.
  • the above solution effectively reduces the difficulty of construction and installation, improves the installation efficiency of the pipe gallery and the pipeline, saves a lot of construction time and cost, and at the same time, the prefabricated pipe joint has large bearing capacity and good compression resistance.
  • the protective effect of the soil around the pipe gallery on the pipe gallery is neglected. Therefore, the structural strength of the underground pipe gallery needs to be further improved.
  • the object of the present invention is to provide a high strength cement soil mixing pile protective underground pipe for the above problems. gallery.
  • a cement-soil mixing pile protective underground pipe gallery including an underground pipe gallery buried in the soil layer, and the two sides of the underground pipe gallery are closely attached to each other.
  • the length of the underground pipe gallery is matched with the appropriate cement-soil mixing pile mechanism.
  • the cement-soil mixing pile mechanism comprises a cement-soil mixing pile wall which is connected by a plurality of cement-soil mixing piles in a radial direction, and two cement soil mixing pile walls.
  • An underground duct accommodating cavity for placing an underground pipe gallery is formed.
  • the cement-soil mixing pile mechanism further comprises a prefabricated pile which is closely adjacent to the cement soil mixing pile wall, and the precast pile is located on the cement soil mixing pile wall near the underground pipe gallery. One side, and the outer wall of the underground pipe gallery is fitted to the prefabricated pile.
  • the prefabricated piles are connected to each other in the radial direction to form a prefabricated pile wall having the same length as the cement soil mixing pile wall.
  • the prefabricated pile is provided with a concave-convex engaging mechanism, and the adjacent pre-formed piles are closely adhered to each other by a concave-convex engaging mechanism, and the pre-formed pile has a direction
  • the connecting portion of the prefabricated pile externally protrudes, and the connecting portion is inserted into the cement soil mixing pile wall and fixedly connected with the cement soil mixing pile wall.
  • the concave-convex engaging mechanism includes a protruding portion extending outside the pre-pile and a concave portion recessed into the interior of the pre-pile, the protruding portion and The recesses are shaped and sized to allow two adjacent precast piles to be snugly attached.
  • the prefabricated pile is provided with a plurality of longitudinal reinforcing ribs and lateral reinforcing ribs
  • the underground pipe gallery is provided with a plurality of transverse connecting ribs, the horizontal connection
  • the ribs and the lateral reinforcing ribs are connected to each other by a connecting mechanism.
  • the connecting mechanism comprises a connecting nut which is fixedly connected with the transverse reinforcing rib in the precast pile, and the end of the transverse connecting rib has a matching function with the connecting nut.
  • the external thread thus causes the transverse connecting rib to be screwed into the connecting nut.
  • the end of the lateral reinforcing rib extends into the underground pipe gallery, and the connecting mechanism comprises a connecting nut fixedly connected with the transverse reinforcing rib, the lateral direction
  • the end of the connecting rib has an external thread adapted to the connecting nut so that the transverse connecting rib is screwed into the connecting nut.
  • the connecting mechanism comprises a collar respectively disposed at the end of the transverse reinforcing rib and the transverse connecting rib, and the horizontal reinforcing rib and the collar on the transverse connecting rib are mutually coupled
  • the connecting mechanism includes hooks respectively disposed at the ends of the lateral reinforcing ribs and the transverse connecting ribs, and the lateral reinforcing ribs and the hooks on the transverse connecting ribs are engaged with each other.
  • the invention has the advantages that the cement soil mixing pile wall plays a role in hardening and strengthening the soil around the underground pipe gallery, and functions as a horizontal positioning of the underground pipe gallery, and the precast pile and the cement soil mixing pile wall
  • the integrated structure further strengthens the soil around the underground pipe gallery; in addition, the prefabricated piles and the underground pipe gallery are connected by the rib connection mechanism to prevent the underground pipe gallery from being settled, thereby making the underground pipe gallery firmer.
  • the structural strength is higher.
  • Figure 1 is a schematic structural view of a cement soil mixing pile mechanism
  • Figure 2 is a schematic view showing the structure of the present invention
  • Figure 3 is a schematic cross-sectional view of a precast pile
  • Figure 4 is a schematic cross-sectional view of another precast pile
  • Figure 5 is a schematic cross-sectional view of another precast pile
  • Figure 6 is a schematic cross-sectional view of another precast pile
  • Figure 7 is a schematic cross-sectional view of another precast pile
  • Figure 8 is a schematic cross-sectional view of another precast pile
  • Figure 9 is a schematic cross-sectional view of another precast pile
  • Figure 10 is a schematic cross-sectional view of another precast pile
  • Figure 11 is an enlarged view of A of Figure 1;
  • Figure 12 is an enlarged view of B of Figure 1;
  • Figure 13 is an enlarged view of a portion C of Figure 1;
  • Figure 14 is an enlarged view of D of Figure 1;
  • Figure 15 is an enlarged view of E at Figure 2.
  • underground pipe gallery 1 cement soil mixing pile mechanism 2, cement soil mixing pile wall 3, underground pipe gallery receiving cavity 4, prefabricated pile 5, concave and convex locking mechanism 6, connecting portion 7, protruding portion 8, concave
  • the inlet portion 9 the longitudinal reinforcing rib 10, the lateral reinforcing rib 11, the transverse connecting rib 12, the connecting mechanism 13, the connecting nut 14, the collar 15, the hook 16, and the soil layer 100.
  • a cement-soil mixing pile protective underground pipe gallery comprises an underground pipe gallery 1 embedded in the soil layer 100, and the two sides of the underground pipe gallery 1 are closely attached to the underground pipe gallery 1 respectively.
  • the length of the cement soil mixing pile mechanism 2 is matched.
  • the cement soil mixing pile mechanism 2 comprises a cement soil mixing pile wall 3 which is connected by a plurality of cement soil mixing piles in the radial direction, and an underground pipe gallery for placing the underground pipe gallery 1 is formed between the two cement soil mixing pile walls 3.
  • the chamber 4 is accommodated.
  • the underground pipe gallery 1 may be cast in the underground pipe gallery accommodating chamber 4, or may be prefabricated into various shapes of pipes and then placed into the underground pipe gallery accommodating chamber 4, or may be prefabricated or
  • the frame is spliced to form an underground pipe gallery 1. It should be understood by those skilled in the art that according to the shape of the underground pipe gallery 1, the shape of the cement-soil mixing pile wall 3 should be changed correspondingly according to the terrain or construction needs. Therefore, the two cement-soil mixing pile walls 3 are not necessarily parallel, and it is also possible It is curved, or the distance between the two cement-soil mixing pile walls 3 is adjusted according to the width of the underground pipe gallery 1.
  • the cement soil mixing pile is made by the prior art and is a method for reinforcing the low foundation of the saturated soft clay. It uses cement as a curing agent, and the soft soil and the curing agent are forced in the depth of the foundation through a special mixing machine. Stirring, using a series of physical and chemical reactions between the curing agent and the soft soil, the soft soil is hardened into a high-quality foundation with integrity, water stability and a certain strength.
  • the Chinese patent No. [201210445899.9] provides a six-axis cement-soil mixing pile. When six cement-soil mixing piles are formed at the same time, seamless joints can be achieved, and the joint formed by the original single-shaft or two-shaft cement-soil mixing pile can be reduced. Improve water stopping effect and construction efficiency and reduce labor consumption.
  • the cement-soil mixing pile mechanism 2 further comprises a prefabricated pile 5 which is adjacent to the cement-soil mixing pile wall 3, and the pre-made pile 5 is located on the side of the cement-soil mixing pile wall 3 near the underground pipe gallery 1, and the outer wall of the underground pipe gallery 1 Fitted with the prefabricated pile 5.
  • the prefabricated piles 5 are connected to each other in the radial direction to form a prefabricated pile wall having the same length as the cement soil mixing pile wall 3, and the prefabricated pile wall and the cement soil mixing pile wall 3 form an integral structure, and the underground pipe gallery accommodates the underground inside the chamber 4
  • the pipe gallery 1 provides a stronger and more reliable protection.
  • the embodiment is not limited.
  • the precast pile 5 has a triangular cross section, as shown in FIG. 5, FIG. 6, and FIG.
  • a polygon as shown in Fig. 7, the precast pile 5 has a T-shaped cross section, and as shown in Figs. 9 and 10, the precast pile 5 has a circular cross section.
  • the prefabricated pile 5 has a connecting portion 7 projecting to the outside of the precast pile 5, and the connecting portion 7 is inserted into the cement-soil mixing pile wall 3 and is mixed with the cement-soil mixing pile wall. 3 fixed connection.
  • the T-shaped pile shown in Fig. 7 it can be inserted into the cement-soil mixing pile wall 3 and fixedly connected thereto.
  • the precast pile 5 is provided with a concave-convex engaging mechanism 6, and the adjacent pre-formed piles 5 are closely adhered to each other by a concave-convex engaging mechanism 6, and the pre-formed pile 5 has a protrusion to the outside of the prefabricated pile 5.
  • the connecting portion 7 is inserted into the cement-soil mixing pile wall 3 and fixedly connected to the cement-soil mixing pile wall 3.
  • the concave-convex engaging mechanism 6 includes a projection 8 extending outside the precast pile 5 and a recess 9 recessed into the interior of the precast pile 5, the projection 8 being adapted to the shape and size of the recess 9 to enable The two adjacent precast piles 5 are brought into close contact with each other.
  • a plurality of longitudinal reinforcing ribs 10 and lateral reinforcing ribs 11 are disposed in the prefabricated pile 5 , and the underground pipe gallery 1 is provided with a plurality of transverse connecting ribs 12 as shown in FIG. 11-14 .
  • the transverse connecting ribs 12 and the lateral reinforcing ribs 11 are connected to each other by a connecting mechanism 13.
  • the connecting mechanism 13 includes a coupling nut 14 located in the prefabricated pile 5 and fixedly coupled to the transverse rib 11, and the end of the transverse connecting rib 12 has an external thread adapted to the coupling nut 14 so that The transverse connecting rib 12 is screwed into the coupling nut 14.
  • the connecting mechanism 13 includes a coupling nut 14 fixedly coupled to the transverse stiffener 11, the transverse direction
  • the end of the connecting rib 12 has an external thread that is adapted to the coupling nut 14 so that the transverse connecting rib 12 is screwed into the coupling nut 14.
  • the connecting mechanism 13 includes collars 15 respectively disposed at the ends of the lateral reinforcing ribs 11 and the transverse connecting ribs 12.
  • the lateral reinforcing ribs 11 and the collars 15 on the transverse connecting ribs 12 are engaged with each other.
  • the connecting mechanism 13 includes hooks 16 respectively disposed at the ends of the lateral reinforcing ribs 11 and the transverse connecting ribs 12.
  • the hooks 16 may be formed by bending the ends of the lateral reinforcing ribs 11 and the transverse connecting ribs 12, or It is prefabricated and fixedly connected with the lateral reinforcing ribs 11 or the transverse connecting ribs 12, and the lateral reinforcing ribs 11 and the hooks 16 on the transverse connecting ribs 12 are engaged with each other. Referring to FIG. 15, the lateral reinforcing ribs 11 and the transverse connecting ribs 12 overlap, snap or screw, thereby forming a horizontal interaction between the prefabricated piles 5 and the underground pipe gallery 1 to prevent the underground pipe gallery 1 from being settlement.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

一种水泥土搅拌桩防护式地下管廊（1），包括埋设在土层（100）中的地下管廊（1），地下管廊（1）的两侧分别紧贴一条与其长度相配适的水泥土搅拌桩机构（2）。该水泥土搅拌桩防护式地下管廊（1）具有牢度高、结构强度好的特点。

Description

水泥土搅拌桩防护式地下管廊 技术领域
本发明属于建筑技术领域，涉及一种水泥土搅拌桩防护式地下管廊。
背景技术
地下管廊又称共同沟，它是实施统一规划、设计、施工和维护，建于城市地下用于敷设市政公用管线的市政公用设施。是指在城市地下用于集中敷设电力、通信、广播电视、给水、排水、热力、燃气等市政管线的公共隧道。
早在上世纪二十年代，日本首都东京市政机构就在市中心九段地区的干线道路下，将电力、电话、供水和煤气等管线集中铺设，形成了东京第一条地下综合管廊。此后，1963年制定的《关于建设共同沟的特别措施法》，从法律层面规定了日本相关部门需在交通量大及未来可能拥堵的主要干道地下建设“共同沟”。国土交通省下属的东京国道事务所负责东京地区主干线地下综合管廊的建设和管理，次干线的地下综合管廊则由东京都建设局负责。
北京早在1958年就在天安门广场下铺设了1000多米的综合管廊。2006年在中关村西区建成了我国大陆地区第二条现代化的综合管廊。该综合管廊主线长2公里，支线长1公里，包括水、电、冷、热、燃气、通讯等市政管线。1994年，上海市政府规划建设了大陆第一条规模最大、距离最长的综合管廊——浦东新区张杨路综合管廊。该综合管廊全长11.125公里，收容了给水、电力、信息与煤气等四种城市管线。上海还建成了松江新城示范性地下综合管廊工程一期和“一环加一线”总长约6公里的嘉定区安亭新镇综合管廊系统。中国与新加坡联合开发的苏州工业园基础设施建设，经过10年的开发，地下管线走廊也已初具规模。
国务院高度重视推进城市地下综合管廊建设，2013年以来先后印发了《国务院关于加强城市基础设施建设的意见》、《国务院办公厅关于加强城市地下管线建设管理的指导意见》，部署开展城市地下综合管廊建设试点工作。
中国专利文献公开了一种带补偿装置的集成式地下管廊[申请号：201410559745.1]，包含若干管节密封条和若干首尾相接的管节单元，所述管节密封条设于相邻所述管节单元之间，所述管节单元包括管节和若干平行设置的管道，所述管道通过固定座设于所述管节内部的底面上，所述管节两端分别设有与所述管节形状相适配的管节伸缩连接管，所述管道两端分别设有管道伸缩连接管，所述管节伸缩连接管远离所述管节的一端设有法兰一，所述管道伸缩连接管远离所述管道的一端设有法兰二。上述方案有效降低了施工安装的难度，提高了管廊和管道的安装效率，节省大量施工时间和费用，同时预制成型的管节承载能力大，抗压效果好。但是，忽略了管廊周围土质对管廊的防护作用，因此，地下管廊的结构强度有待进一步提高。
发明内容
本发明的目的是针对上述问题，提供一种强度高的水泥土搅拌桩防护式地下管 廊。
为达到上述目的，本发明采用了下列技术方案：一种水泥土搅拌桩防护式地下管廊，包括埋设在土层中的地下管廊，所述的地下管廊的两侧分别紧贴一条与地下管廊长度相配适的水泥土搅拌桩机构。
在上述的水泥土搅拌桩防护式地下管廊中，所述的水泥土搅拌桩机构包括由若干水泥土搅拌桩沿径向相互连接而成的水泥土搅拌桩墙，两条水泥土搅拌桩墙之间形成用于放置地下管廊的地下管廊容置腔。
在上述的水泥土搅拌桩防护式地下管廊中，所述的水泥土搅拌桩机构还包括紧贴水泥土搅拌桩墙的预制桩，所述的预制桩位于水泥土搅拌桩墙靠近地下管廊的一侧，且地下管廊的外壁与预制桩贴合。
在上述的水泥土搅拌桩防护式地下管廊中，所述的预制桩沿径向相互连接从而形成与水泥土搅拌桩墙长度相同的预制桩墙。
在上述的水泥土搅拌桩防护式地下管廊中，所述的预制桩上设有凹凸卡接机构，相邻的预制桩通过凹凸卡接机构相互紧密贴合，所述的预制桩上具有向预制桩外部突出的连接部，所述的连接部插入到水泥土搅拌桩墙中并与水泥土搅拌桩墙固定连接。
在上述的水泥土搅拌桩防护式地下管廊中，所述的凹凸卡接机构包括延伸出预制桩外部的凸出部及向预制桩内部凹进的凹进部，所述的凸出部与凹进部形状和大小相配适从而能使两根相邻的预制桩紧密贴合连接。
在上述的水泥土搅拌桩防护式地下管廊中，所述的预制桩内设有若干纵向加强筋和横向加强筋，所述的地下管廊内设有若干横向连接筋，所述的横向连接筋与横向加强筋通过连接机构相互连接。
在上述的水泥土搅拌桩防护式地下管廊中，所述的连接机构包括位于预制桩内且与横向加强筋固定连接的连接螺母，所述的横向连接筋的端部具有与连接螺母相配适的外螺纹从而使横向连接筋与连接螺母螺接配合。
在上述的水泥土搅拌桩防护式地下管廊中，所述的横向加强筋的端部延伸到地下管廊内，所述的连接机构包括与横向加强筋固定连接的连接螺母，所述的横向连接筋的端部具有与连接螺母相配适的外螺纹从而使横向连接筋与连接螺母螺接配合。
在上述的水泥土搅拌桩防护式地下管廊中，所述的连接机构包括分别设置在横向加强筋和横向连接筋端部的卡圈，横向加强筋和横向连接筋上的卡圈相互卡接配合；或所述的连接机构包括分别设置在横向加强筋和横向连接筋端部的卡勾，横向加强筋和横向连接筋上的卡勾相互卡接配合。
与现有的技术相比，本发明的优点在于：水泥土搅拌桩墙对地下管廊周围的土质起到硬化加固作用，起到对地下管廊的横向定位，预制桩与水泥土搅拌桩墙成为一体式结构，进一步加固了地下管廊的周围的土质；另外，预制桩与地下管廊通过加强筋连接机构连接后能起到防止地下管廊沉降的作用，从而使地下管廊更牢固，结构强度更高。
附图说明
图1是水泥土搅拌桩机构的结构示意图；
图2本发明的结构示意图；
图3是预制桩的横截面示意图；
图4是另一种预制桩的横截面示意图；
图5是另一种预制桩的横截面示意图；
图6是另一种预制桩的横截面示意图；
图7是另一种预制桩的横截面示意图；
图8是另一种预制桩的横截面示意图；
图9是另一种预制桩的横截面示意图；
图10是另一种预制桩的横截面示意图；
图11是图1的A处放大图；
图12是图1的B处放大图；
图13是图1的C处放大图；
图14是图1的D处放大图；
图15是图2的E处放大图。
图中：地下管廊1、水泥土搅拌桩机构2、水泥土搅拌桩墙3、地下管廊容置腔4、预制桩5、凹凸卡接机构6、连接部7、凸出部8、凹进部9、纵向加强筋10、横向加强筋11、横向连接筋12、连接机构13、连接螺母14、卡圈15、卡勾16、土层100。
具体实施方式
下面结合附图和具体实施方式对本发明做进一步详细的说明。
如图1所示，一种水泥土搅拌桩防护式地下管廊，包括埋设在土层100中的地下管廊1，所述的地下管廊1的两侧分别紧贴一条与地下管廊1长度相配适的水泥土搅拌桩机构2。水泥土搅拌桩机构2包括由若干水泥土搅拌桩沿径向相互连接而成的水泥土搅拌桩墙3，两条水泥土搅拌桩墙3之间形成用于放置地下管廊1的地下管廊容置腔4。
地下管廊1可以是在地下管廊容置腔4内现浇，也可以是预制呈各种形状的管道状后放入到地下管廊容置腔4内，又或者可以是用预制板材或框架进行拼接从而形成地下管廊1。本领域技术人员应当理解，根据地下管廊1的形状，水泥土搅拌桩墙3的形状应随地形或施工需要作出相应的改变，因此，两条水泥土搅拌桩墙3并非一定平行，也有可能是弯曲的，或者两条水泥土搅拌桩墙3之间的距离会根据地下管廊1的宽度作出相应的调整。
水泥土搅拌桩的制作方法为现有技术，是用于加固饱和软黏土低地基的一种方法，它利用水泥作为固化剂，通过特制的搅拌机械，在地基深处将软土和固化剂强制搅拌，利用固化剂和软土之间所产生的一系列物理化学反应，使软土硬结成具有整体性、水稳定性和一定强度的优质地基。申请号为[201210445899.9]的中国专利提供一种六轴水泥土搅拌桩，六根水泥土搅拌桩同一时间形成，则可实现无缝搭接，减少原单轴或二轴水泥土搅拌桩形成的接缝，提高止水效果和施工效率，减少用工量。
水泥土搅拌桩机构2还包括紧贴水泥土搅拌桩墙3的预制桩5，所述的预制桩5位于水泥土搅拌桩墙3靠近地下管廊1的一侧，且地下管廊1的外壁与预制桩5贴合。预制桩5沿径向相互连接从而形成与水泥土搅拌桩墙3长度相同的预制桩墙，预制桩墙与水泥土搅拌桩墙3形成一体式结构，对地下管廊容置腔4内部的地下管廊1起到更牢固、可靠的保护作用。
至于预制桩5的横截面形状，本实施例不做限定，如图3和图4所示，预制桩5横截面为三角形，如图5、图6、图8所示，预制桩5横截面为多边形，如图7所示，预制桩5横截面为T形，如图9和图10所示，预制桩5横截面为圆形。
如图4、图5、图10所示，预制桩5上具有向预制桩5外部突出的连接部7，所述的连接部7插入到水泥土搅拌桩墙3中并与水泥土搅拌桩墙3固定连接。另外，对于如图7所示的T形桩，其本身就能插入到水泥土搅拌桩墙3内与其固定连接。
如图3所示，预制桩5上设有凹凸卡接机构6，相邻的预制桩5通过凹凸卡接机构6相互紧密贴合，所述的预制桩5上具有向预制桩5外部突出的连接部7，所述的连接部7插入到水泥土搅拌桩墙3中并与水泥土搅拌桩墙3固定连接。
凹凸卡接机构6包括延伸出预制桩5外部的凸出部8及向预制桩5内部凹进的凹进部9，所述的凸出部8与凹进部9形状和大小相配适从而能使两根相邻的预制桩5紧密贴合连接。
如图1所示，预制桩5内设有若干纵向加强筋10和横向加强筋11，再结合图11-14所示，所述的地下管廊1内设有若干横向连接筋12，所述的横向连接筋12与横向加强筋11通过连接机构13相互连接。
如图11所示，连接机构13包括位于预制桩5内且与横向加强筋11固定连接的连接螺母14，所述的横向连接筋12的端部具有与连接螺母14相配适的外螺纹从而使横向连接筋12与连接螺母14螺接配合。
如图2所示，横向加强筋11的端部延伸到地下管廊1内，如图1所示，所述的连接机构13包括与横向加强筋11固定连接的连接螺母14，所述的横向连接筋12的端部具有与连接螺母14相配适的外螺纹从而使横向连接筋12与连接螺母14螺接配合。
如图12和图14所示，连接机构13包括分别设置在横向加强筋11和横向连接筋12端部的卡圈15，横向加强筋11和横向连接筋12上的卡圈15相互卡接配合；或所述的连接机构13包括分别设置在横向加强筋11和横向连接筋12端部的卡勾16，卡勾16可以是横向加强筋11和横向连接筋12端部弯折形成，也可以预先制成并与横向加强筋11或横向连接筋12固定连接，横向加强筋11和横向连接筋12上的卡勾16相互卡接配合。再结合图15所示，横向加强筋11和横向连接筋12相互交叠、卡接或螺接，从而使预制桩5与地下管廊1形成在水平方向上的相互作用，防止地下管廊1沉降。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。

Claims (10)

  1. 一种水泥土搅拌桩防护式地下管廊，包括埋设在土层中的地下管廊(1)，其特征在于，所述的地下管廊(1)的两侧分别紧贴一条与地下管廊(1)长度相配适的水泥土搅拌桩机构(2)。
  2. 根据权利要求1所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的水泥土搅拌桩机构(2)包括由若干水泥土搅拌桩沿径向相互连接而成的水泥土搅拌桩墙(3)，两条水泥土搅拌桩墙(3)之间形成用于放置地下管廊(1)的地下管廊容置腔(4)。
  3. 根据权利要求3所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的水泥土搅拌桩机构(2)还包括紧贴水泥土搅拌桩墙(3)的预制桩(5)，所述的预制桩(5)位于水泥土搅拌桩墙(3)靠近地下管廊(1)的一侧，且地下管廊(1)的外壁与预制桩(5)贴合。
  4. 根据权利要求3所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的预制桩(5)沿径向相互连接从而形成与水泥土搅拌桩墙(3)长度相同的预制桩墙。
  5. 根据权利要求3所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的预制桩(5)上设有凹凸卡接机构(6)，相邻的预制桩(5)通过凹凸卡接机构(6)相互紧密贴合，所述的预制桩(5)上具有向预制桩(5)外部突出的连接部(7)，所述的连接部(7)插入到水泥土搅拌桩墙(3)中并与水泥土搅拌桩墙(3)固定连接。
  6. 根据权利要求5所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的凹凸卡接机构(6)包括延伸出预制桩(5)外部的凸出部(8)及向预制桩(5)内部凹进的凹进部(9)，所述的凸出部(8)与凹进部(9)形状和大小相配适从而能使两根相邻的预制桩(5)紧密贴合连接。
  7. 根据权利要求3所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的预制桩(5)内设有若干纵向加强筋(10)和横向加强筋(11)，所述的地下管廊(1)内设有若干横向连接筋(12)，所述的横向连接筋(12)与横向加强筋(11)通过连接机构(13)相互连接。
  8. 根据权利要求7所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的连接机构(13)包括位于预制桩(5)内且与横向加强筋(11)固定连接的连接螺母(14)，所述的横向连接筋(12)的端部具有与连接螺母(14)相配适的外螺纹从而使横向连接筋(12)与连接螺母(14)螺接配合。
  9. 根据权利要求7所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的横向加强筋(11)的端部延伸到地下管廊(1)内，所述的连接机构(13)包括与横向加强筋(11)固定连接的连接螺母(14)，所述的横向连接筋(12)的端部具有与连接螺母(14)相配适的外螺纹从而使横向连接筋(12)与连接螺母(14)螺接配合。
  10. 根据权利要求7所述的水泥土搅拌桩防护式地下管廊，其特征在于，所述的连接机构(13)包括分别设置在横向加强筋(11)和横向连接筋(12)端部的卡圈(15)，横向加强筋(11)和横向连接筋(12)上的卡圈(15)相互卡接配合；或所述的连接机构(13)包括分别设置在横向加强筋(11)和横向连接筋(12)端部的卡勾(16)，横向加强筋(11)和横向连接筋(12)上的卡勾(16)相互卡接配合。
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