WO2017008471A1 - 用于建造地下室的复合围护桩 - Google Patents

用于建造地下室的复合围护桩 Download PDF

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WO2017008471A1
WO2017008471A1 PCT/CN2016/000394 CN2016000394W WO2017008471A1 WO 2017008471 A1 WO2017008471 A1 WO 2017008471A1 CN 2016000394 W CN2016000394 W CN 2016000394W WO 2017008471 A1 WO2017008471 A1 WO 2017008471A1
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pile
composite
shaped
constructing
basement
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PCT/CN2016/000394
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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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    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
    • E02D5/12—Locking forms; Edge joints; Pile crossings; Branch pieces
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor

Definitions

  • the invention belongs to the technical field of building engineering and relates to a composite retaining pile for constructing a basement.
  • Cement-soil mixing pile is a method for reinforcing the low foundation of saturated soft clay. It uses cement as a curing agent, and uses a special mixing machine to forcibly stir the soft soil and the curing agent deep in the foundation, using the curing agent and soft soil. A series of physical and chemical reactions between the soft soils are hardened into a high-quality foundation with integrity, water stability and a certain strength.
  • Bored pile refers to a pile formed by forming a pile hole in the foundation soil by mechanical drilling, steel pipe compaction or manual excavation at the project site, and placing a steel cage and pouring concrete in it.
  • the Chinese invention of the patent No. 200720302293.4 discloses a tongue-and-groove concrete T-shaped pile having a T-shaped pile body, the body having a cross section of a "T" shape, and the flanges of the two sides of the body are provided with a tongue and groove joint. After the T-shaped pile is applied to the river bank revetment, the moisture contained in the soil inside the revetment is slower, which affects the stability of the revetment.
  • the Chinese invention patent No. 201420121343.9 discloses a water permeable T-shaped pile, which comprises a first panel and a web, and the two are integrally cast to form a T-shape, and the first panel is provided with a plurality of axes symmetrically arranged with its center line as a symmetry.
  • the permeable area formed by the permeable concrete pouring, each of the permeable areas is provided with a plurality of blind holes perpendicular to the plane of the first panel and used for cultivating the snail.
  • the anti-scouring and anti-overturning ability of the bank formed by the T-shaped pile is greatly improved, and the stability is better.
  • the T-pillar lacks a structure that is connected to other building members, so stability needs to be strengthened.
  • An object of the present invention is to provide a composite retaining pile for constructing a basement which can be used to improve the strength and tightness of a basement in response to the above problems.
  • a composite retaining pile for constructing a basement comprising a composite pile and a retaining pile, the composite piles being arranged along the circumferential direction of the basement and connected to each other to form a closed
  • the annular structure is surrounded by the surrounding pile and fixedly connected with the composite pile.
  • the retaining pile includes a plurality of T-shaped piles having a T-shaped cross section and connected to each other, and the T-shaped pile is inserted into the composite pile and the composite pile.
  • the composite pile is a cement soil mixing pile or a bored pile
  • the T-shaped pile includes a transverse plate and a longitudinal plate perpendicularly and fixedly connected to the transverse plate.
  • the T-shaped pile is provided with a plurality of anchor assemblies fixedly connected with the T-shaped piles, and the anchor assemblies are fixedly connected with the composite piles.
  • the anchor assembly includes a bolt and a bolt a reinforcing rod that is connected, the reinforcing rod is located on the transverse plate and parallel to the axial line of the transverse plate, the reinforcing rod is perpendicular to the anchor rod, one end of the anchor rod is fixedly connected with the transverse plate, and the other end is inserted into the composite pile The inside is fixedly connected with the composite pile.
  • the longitudinal plate is in close contact with or inserted into the composite pile.
  • a reinforcing cage having a T-shaped cross section is provided in the T-shaped pile and along the axial direction of the T-shaped pile, and the reinforcing cage includes a T-shaped pile.
  • a plurality of mutually parallel steel bars disposed axially and ribs fixedly coupled to the steel bars.
  • the end of the T-shaped pile has a concave-convex connection mechanism, and when two adjacent T-shaped piles are close, the two T-shaped piles can pass through the concave-convex connection mechanism. Form a snap fit.
  • the concave-convex connecting mechanism includes a groove and a rib disposed on two opposite sides of the transverse plate, and the groove and the rib are matched.
  • the ribs on one of the T-shaped piles can be inserted into the grooves on the other T-shaped pile so that the two T-shaped piles can be snap-fitted.
  • the concave-convex connecting mechanism includes connecting blocks respectively disposed on both sides of the transverse plate, and the two connecting blocks are centrally symmetric along the axial line of the transverse plate.
  • the connecting block has a concave hole and a convex block, and the convex block is matched with the concave hole, and the convex block on one of the connecting blocks can be inserted into another A recess in the connecting block allows the two adjacent T-piles to snap fit.
  • the invention has the advantages that the combination of the composite pile and the retaining pile plays a role of improving the overall strength, ensuring the safety of the basement excavation, preventing the collapse of the basement, and improving the waterproofness of the basement.
  • the anchor rod connects the pile body with the cement soil mixing pile or the bored pile to further improve the strength and stability of the pile body, and the concave-convex connection mechanism enables a quick sealing connection between the two T-shaped piles;
  • the T-shaped piles can form a mutual snap fit to form a stable retaining pile structure.
  • Figure 1 is a schematic view of the structure provided by the present invention.
  • Figure 2 is a schematic view of the structure provided by the present invention.
  • Figure 3 is a schematic structural view of a T-shaped pile
  • Figure 4 is a view taken along line A of Figure 3;
  • Figure 5 is a schematic view showing another structure of the T-shaped pile
  • Figure 6 is a schematic view showing another structure of the T-shaped pile
  • Figure 7 is another schematic structural view of a T-shaped pile
  • Figure 8 is a schematic view showing another structure of the T-shaped pile
  • Figure 9 is a schematic structural view of the connection of two T-piles shown in Figure 5;
  • Figure 10 is a schematic structural view of the connection of the two T-piles shown in Figure 6;
  • Figure 11 is a schematic view showing the structure of the two T-piles shown in Figure 7;
  • Figure 12 is a schematic view showing the structure of the connection of the two T-piles shown in Figure 8.
  • composite pile 1 retaining pile 2, T-shaped pile 3, transverse plate 31, longitudinal plate 32, anchor assembly 4, anchor 41, reinforcing rod 42, reinforcing cage 5, steel rod 51, reinforcing rib 52, Concave-convex connection mechanism 6, groove 61, ridge 62, connecting block 63, recessed hole 64.
  • a composite retaining pile for constructing a basement includes a composite pile 1 and a retaining pile 2, and the composite piles 1 are arranged along the circumferential direction of the basement 100 and connected to each other to form a closed.
  • the annular structure 2 surrounds the basement 100 and is fixedly connected to the composite pile 1.
  • the basement 100 shown in Fig. 1 is a partial structure, and in actual use, the basement 100 occupies the entire area surrounded by the retaining pile 2.
  • the retaining pile 2 comprises a plurality of T-shaped piles 3 which are T-shaped and connected to each other.
  • the T-shaped piles 3 are inserted into the composite pile 1 and form a fixed connection with the composite pile 1.
  • the composite pile 1 is cement.
  • Cement-soil mixing pile is a method for reinforcing the low foundation of saturated soft clay. It uses cement as a curing agent, and uses a special mixing machine to forcibly stir the soft soil and the curing agent deep in the foundation, using the curing agent and soft soil. A series of physical and chemical reactions between the soft soils are hardened into a high-quality foundation with integrity, water stability and a certain strength.
  • Bored pile refers to a pile formed by forming a pile hole in the foundation soil by mechanical drilling, steel pipe compaction or manual excavation at the project site, and placing a steel cage and pouring concrete in it.
  • the T-pillar 3 includes a transverse plate 31 and a longitudinal plate 32 that is perpendicular and fixedly coupled to the transverse plate 31.
  • the T-pillars 3 are provided with a plurality of anchor assemblies 4 fixedly coupled to the T-pillars 3.
  • the anchor assemblies 4 on either side of the longitudinal plates 32 are evenly distributed.
  • the anchor assembly 41 is fixedly coupled to the composite pile 1.
  • the anchor assembly 4 includes a bolt 41 and a reinforcing bar 42 fixedly coupled to the anchor 41, the reinforcing bar 42 being located on the transverse plate 31 and parallel to the axis of the transverse plate 31, the reinforcing bar 42 and the anchor
  • the rod 41 is vertical, one end of the anchor rod 41 is fixedly connected with the transverse plate 31, and the other end is inserted into the composite pile 1 and fixedly connected with the composite pile 1.
  • the anchor rod 41 passes through the composite pile 1 and is inserted into the soil layer 101.
  • the reinforcing rod 42 may be pre-buried into the T-shaped pile 3 when the T-shaped pile 3 is made, or a hollow tube may be provided in the T-shaped pile 3 in advance for inserting the reinforcing rod 42, and the reinforcing rod 42 may be welded with the anchor rod Or screw or riveted to achieve a fixed connection.
  • the longitudinal plate 32 and the composite pile 1 are closely attached or inserted into the composite pile 1, so that the fixed connection of the T-shaped pile 3 and the composite pile 1 is realized, and the three-dimensional reinforcement structure is realized.
  • a reinforcing cage 5 having a T-shaped cross section is provided in the T-pillar 3 and along the axial direction of the T-pillar 3, and the reinforcing cage 5 includes a plurality of mutually parallel steel bars 51 disposed along the axial direction of the T-shaped pile 3.
  • the reinforcing rib 52 fixedly connected with the steel bar 51, the reinforcing rib 52 may be a spiral shape or a ring shape, and the steel bar 51 may be fixed by welding or bundling, etc., and the steel bar 51 may also be made of carbon fiber or the like. Strength material replacement.
  • the end portion of the T-pillar 3 has an uneven connection mechanism 6, and when two adjacent T-shaped piles 3 are brought close, the two T-shaped piles 3 can form a snap fit by the concave-convex connection mechanism 6.
  • the concave-convex connection mechanism 6 includes a groove 61 and a ridge 62 which are disposed on opposite sides of the transverse plate 31, and the groove 61 and the ridge 62 are matched when two adjacent T-shaped piles 3 are mutually When approached, the rib 62 on one of the T-piles 3 can be inserted into the recess 61 in the other T-pillar 3 so that the two T-piles 3 can be snap-fitted.
  • the groove 51 and the rib 52 may have different shapes and can form a snap-fit and a concave-convex connection. As shown in FIGS. 5 and 9, the groove 51 and the ridge 52 are rectangular, as shown in FIGS. 6 and 10. The groove 51 and the rib 52 are wedge-shaped, and as shown in FIGS. 7 and 11, the groove 51 and the rib 52 are fan-shaped or round-shaped.
  • the present invention can be used in the construction of the basement 100.
  • the composite pile 2 is first driven into the underground soil layer 101, and the T-shaped pile 3 is driven into the ground and connected with the composite pile 2, T-shaped.
  • the pile 3 is surrounded by the concavo-convex connection mechanism 6 and encircled around the basement 100 to be excavated, so that a good performance retaining pile is formed.
  • the T-shaped pile 3 can also be laid on the track to allow the excavator or the like to excavate the machine.
  • a sealing material such as an epoxy resin can be added to improve the waterproofness, and the concave-convex connection mechanism 6 functions.
  • the function of mutual engagement is equivalent to the role of reinforcing ribs.
  • the structure and working principle of the embodiment are basically the same as those of the embodiment 1, except that the concave-convex connecting mechanism 6 includes connecting blocks 63 respectively disposed on both sides of the horizontal plate 31, and the two connecting blocks 63 are along the axis of the transverse plate 31.
  • the line is center symmetrical.
  • the connecting block 63 has a recessed hole 64 and a projection 65, and the projection 65 is adapted to the recessed hole 64, and the projection 65 on one of the connecting blocks 63 can be inserted into the recessed hole 64 in the other connecting block 63.
  • the connecting block 53 in Fig. 8 is of a hook type, and the connection is convenient and firm.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological 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)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

一种用于建造地下室的复合围护桩，包括复合桩（1）及围护桩（2），复合桩（1）沿地下室（100）的周向设置并相互连接形成一个封闭的环形结构，围护桩（2）围绕在地下室（100）外并与复合桩（1）固定连接。

Description

用于建造地下室的复合围护桩 技术领域
本发明属于建筑工程技术领域，涉及一种用于建造地下室的复合围护桩。
背景技术
水泥土搅拌桩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。钻孔桩是指在工程现场通过机械钻孔、钢管挤土或人力挖掘等手段在地基土中形成桩孔，并在其内放置钢筋笼、灌注混凝土而做成的桩。
由于水泥土搅拌桩或钻孔桩的成本低，制作速度快，被大量用于建筑物的地基中，近年来，在地下室建造时，尤其要用到大量的水泥土搅拌桩，但其稳定性和强度不如预制桩，因此对于结构强度的提高仍需进一步加强。
专利号为200720302293.4的中国发明公开了一种企口混凝土T形桩，具有T形桩本体，所述本体的横截面呈“T”形，该本体两边翼缘设有榫槽连接件。将该T形桩应用于河道护岸后，护岸内侧土体内含的水分排出速度较慢，影响护岸的稳定性。
专利号为201420121343.9的中国发明公开了一种透水T形桩，包括第一面板和腹板，两者一体浇筑构成T形，所述第一面板上设有若干以其中心线为对称轴对称布置的、采用透水混凝土浇筑形成的透水区，各透水区内均开设若干垂直于第一面板所在平面、且用于栖养螺蛳的盲孔。
上述方案采用T形桩修建河道护岸时，大大提高了由该T形桩所成护岸的抗冲刷、抗倾覆能力，稳定性更好。但是该T形桩缺乏与其他建筑构件连接的结构，因此稳定性有待加强。
发明内容
本发明的目的是针对上述问题，提供一种能用于提高地下室强度和密封性的用于建造地下室的复合围护桩。
为达到上述目的，本发明采用了下列技术方案：一种用于建造地下室的复合围护桩，包括复合桩及围护桩，所述的复合桩沿地下室的周向设置并相互连接形成一个封闭的环形结构，所述的围护桩围绕在地下室外并与复合桩固定连接。
在上述的用于建造地下室的复合围护桩中，所述的围护桩包括若干个横截面呈T形且相互连接的T形桩，所述的T形桩插入到复合桩内与复合桩形成固定连接，所述的复合桩为水泥土搅拌桩或钻孔桩，所述的T形桩包括横向板和与横向板垂直且固定连接的纵向板。
在上述的用于建造地下室的复合围护桩中，所述的T形桩上设有若干与T形桩固定连接的锚杆组件，所述的锚杆组件与复合桩固定连接。
在上述的用于建造地下室的复合围护桩中，所述的锚杆组件包括锚杆和与锚杆固 定连接的加固棒，所述的加固棒位于横向板上并与横向板的轴心线平行，所述的加固棒与锚杆垂直，锚杆一端与横向板固定连接，另一端插入到复合桩内与复合桩固定连接。
在上述的用于建造地下室的复合围护桩中，所述的纵向板与复合桩紧贴或插入到复合桩内。
在上述的用于建造地下室的复合围护桩中，所述的T形桩内并沿T形桩的轴向设有横截面呈T形的钢筋笼，所述的钢筋笼包括沿T形桩的轴向设置的若干相互平行的钢棒和与钢棒固定连接的加强筋。
在上述的用于建造地下室的复合围护桩中，所述的T形桩的端部具有凹凸连接机构，当两个相邻的T形桩靠近时，两个T形桩能通过凹凸连接机构形成卡接配合。
在上述的用于建造地下室的复合围护桩中，所述的凹凸连接机构包括设置在横向板相对置的两个侧面上的凹槽和凸条，所述的凹槽和凸条相配适，当两个相邻的T形桩相互靠近时，其中一个T形桩上的凸条能插入到另一个T形桩上的凹槽中从而使两个T形桩能卡接配合。
在上述的用于建造地下室的复合围护桩中，所述的凹凸连接机构包括分别设置在横向板两侧的连接块，两个连接块沿横向板的轴心线呈中心对称。
在上述的用于建造地下室的复合围护桩中，所述的连接块具有凹孔和凸块，所述的凸块与凹孔相配适，且其中一个连接块上的凸块能插入到另一个连接块上的凹孔中从而使两个相邻的T形桩能卡接配合。
与现有的技术相比，本发明的优点在于：复合桩与围护桩的结合，起到了提高整体强度的作用，保证地下室挖掘时的安全性，防止地下室塌方，也提高了地下室的防水性和密封性；锚杆使桩体与水泥土搅拌桩或钻孔桩的连接，进一步提高桩体的强度和稳定性，凹凸连接机构能使两个T形桩之间实现快速的密封连接；两个T形桩能形成相互卡接配合，从而形成稳定的围护桩结构。
附图说明
图1是本发明提供的结构示意图；
图2是本发明提供的结构示意图；
图3是T形桩的结构示意图；
图4是图3的A向视图；
图5是本T形桩的另一种结构示意图；
图6是T形桩的另一种结构示意图；
图7是T形桩的另一种结构示意图；
图8是T形桩的另一种结构示意图；
图9是图5所示两个T形桩连接的结构示意图；
图10是图6所示两个T形桩连接的结构示意图；
图11是图7所示两个T形桩连接的结构示意图；
图12是图8所示两个T形桩连接的结构示意图。
图中：复合桩1、围护桩2、T形桩3、横向板31、纵向板32、锚杆组件4、锚杆41、加固棒42、钢筋笼5、钢棒51、加强筋52、凹凸连接机构6、凹槽61、凸条62、连接块63、凹孔 64、凸块65、地下室100、土层101。
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。
实施例1
如图1和图2所示，一种用于建造地下室的复合围护桩，包括复合桩1及围护桩2，所述的复合桩1沿地下室100的周向设置并相互连接形成一个封闭的环形结构，所述的围护桩2围绕在地下室100外并与复合桩1固定连接。图1中所示的地下室100为部分结构，在实际应用时，地下室100占围护桩2所围绕的全部面积。
围护桩2包括若干个横截面呈T形且相互连接的T形桩3，所述的T形桩3插入到复合桩1内与复合桩1形成固定连接，所述的复合桩1为水泥土搅拌桩或钻孔桩。水泥土搅拌桩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。钻孔桩是指在工程现场通过机械钻孔、钢管挤土或人力挖掘等手段在地基土中形成桩孔，并在其内放置钢筋笼、灌注混凝土而做成的桩。
如图3和图4所示，所述的T形桩3包括横向板31和与横向板31垂直且固定连接的纵向板32。T形桩3上设有若干与T形桩3固定连接的锚杆组件4，优选，位于纵向板32两侧的锚杆组件4均匀分布。
所述的锚杆组件41与复合桩1固定连接。锚杆组件4包括锚杆41和与锚杆41固定连接的加固棒42，所述的加固棒42位于横向板31上并与横向板31的轴心线平行，所述的加固棒42与锚杆41垂直，锚杆41一端与横向板31固定连接，另一端插入到复合桩1内与复合桩1固定连接，优选地，锚杆41穿过复合桩1后并插入到土层101中，加固棒42可在制作T形桩3时预埋入T形桩3内，也可以在预先在T形桩3内设置空心管道，用于插设加固棒42，加固棒42可与锚杆焊接或螺接或铆接从而实现固定连接。
在复合桩1尚未凝固前，纵向板32与复合桩1紧贴或插入到复合桩1内，从而实现T形桩3与复合桩1的固定连接，实现立体式加强结构。
T形桩3内并沿T形桩3的轴向设有横截面呈T形的钢筋笼5，所述的钢筋笼5包括沿T形桩3的轴向设置的若干相互平行的钢棒51和与钢棒51固定连接的加强筋52，加强筋52可以是螺旋形或是圈型，与钢棒51的固定方式可以是焊接或捆绑连接等等，钢棒51也可以用碳纤维等其他高强度的材料替换。
T形桩3的端部具有凹凸连接机构6，当两个相邻的T形桩3靠近时，两个T形桩3能通过凹凸连接机构6形成卡接配合。
凹凸连接机构6包括设置在横向板31相对置的两个侧面上的凹槽61和凸条62，所述的凹槽61和凸条62相配适，当两个相邻的T形桩3相互靠近时，其中一个T形桩3上的凸条62能插入到另一个T形桩3上的凹槽61中从而使两个T形桩3能卡接配合。
凹槽51和凸条52可以是不同的形状，能形成卡接和凹凸连接即可，如图5和图9示，凹槽51和凸条52为矩形，如图6和图10所示，凹槽51和凸条52为楔形，如图7和图11所示，凹槽51和凸条52为扇形或圆缺形。
本发明可以用于地下室100建造，在建造地下室100时，先把复合桩2打入到地下的土层101中，再把T形桩3打入到地下并与复合桩2形成连接，T形桩3通过凹凸连接机构6并围成圈型，围护在需要挖掘的地下室100周围，这样，一个性能良好的围护桩就形成了。T形桩3上还可以铺设轨道，让挖掘机等挖掘机械行走，在T形桩3相互连接的凹凸连接机构6中可以加入密封材料如环氧树脂，提高防水性，凹凸连接机构6起到相互咬合的作用，相当于起到加强筋的作用。锚杆41与地下室周围的水泥土搅拌桩或钻孔桩形成连接时，则能形成相互固定连接的结构，从而提升整个结构的稳定性。当然，本发明也不限用于地下室的建造，也可用于河堤，桥梁等。
实施例2
本实施例与实施例1的结构和工作原理基本相同，不同之处在于，凹凸连接机构6包括分别设置在横向板31两侧的连接块63，两个连接块63沿横向板31的轴心线呈中心对称。连接块63具有凹孔64和凸块65，所述的凸块65与凹孔64相配适，且其中一个连接块63上的凸块65能插入到另一个连接块63上的凹孔64中从而使两个相邻的T形桩3能卡接配合。图8中的连接块53呈挂钩型，连接方便且牢固。
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。
尽管本文较多地使用了复合桩1、围护桩2、T形桩3、横向板31、纵向板32、锚杆组件4、锚杆41、加固棒42、钢筋笼5、钢棒51、加强筋52、凹凸连接机构6、凹槽61、凸条62、连接块63、凹孔64、凸块65、地下室100、土层101等术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质；把它们解释成任何一种附加的限制都是与本发明精神相违背的。

Claims (10)

  1. 一种用于建造地下室的复合围护桩，其特征在于，包括复合桩(1)及围护桩(2)，所述的复合桩(1)沿地下室(100)的周向设置并相互连接形成一个封闭的环形结构，所述的围护桩(2)围绕在地下室(100)外并与复合桩(1)固定连接。
  2. 根据权利要求1所述的用于建造地下室的复合围护桩，其特征在于，所述的围护桩(2)包括若干个横截面呈T形且相互连接的T形桩(3)，所述的T形桩(3)插入到复合桩(1)内与复合桩(1)形成固定连接，所述的复合桩(1)为水泥土搅拌桩或钻孔桩，所述的T形桩(3)包括横向板(31)和与横向板(31)垂直且固定连接的纵向板(32)。
  3. 根据权利要求2所述的用于建造地下室的复合围护桩，其特征在于，所述的T形桩(3)上设有若干与T形桩(3)固定连接的锚杆组件(4)，所述的锚杆组件(41)与复合桩(1)固定连接。
  4. 根据权利要求3所述的用于建造地下室的复合围护桩，其特征在于，所述的锚杆组件(4)包括锚杆(41)和与锚杆(41)固定连接的加固棒(42)，所述的加固棒(42)位于横向板(31)上并与横向板(31)的轴心线平行，所述的加固棒(42)与锚杆(41)垂直，锚杆(41)一端与横向板(31)固定连接，另一端插入到复合桩(1)内与复合桩(1)固定连接。
  5. 根据权利要求2所述的用于建造地下室的复合围护桩，其特征在于，所述的纵向板(32)与复合桩(1)紧贴或插入到复合桩(1)内。
  6. 根据权利要求2所述的用于建造地下室的复合围护桩，其特征在于，所述的T形桩(3)内并沿T形桩(3)的轴向设有横截面呈T形的钢筋笼(5)，所述的钢筋笼(5)包括沿T形桩(3)的轴向设置的若干相互平行的钢棒(51)和与钢棒(51)固定连接的加强筋(52)。
  7. 根据权利要求2所述的用于建造地下室的复合围护桩，其特征在于，所述的T形桩(3)的端部具有凹凸连接机构(6)，当两个相邻的T形桩(3)靠近时，两个T形桩(3)能通过凹凸连接机构(6)形成卡接配合。
  8. 根据权利要求7所述的用于建造地下室的复合围护桩，其特征在于，所述的凹凸连接机构(6)包括设置在横向板(31)相对置的两个侧面上的凹槽(61)和凸条(62)，所述的凹槽(61)和凸条(62)相配适，当两个相邻的T形桩(3)相互靠近时，其中一个T形桩(3)上的凸条(62)能插入到另一个T形桩(3)上的凹槽(61)中从而使两个T形桩(3)能卡接配合。
  9. 根据权利要求7所述的用于建造地下室的复合围护桩，其特征在于，所述的凹凸连接机构(6)包括分别设置在横向板(31)两侧的连接块(63)，两个连接块(63)沿横向板(31)的轴心线呈中心对称。
  10. 根据权利要求9所述的用于建造地下室的复合围护桩，其特征在于，所述的连接块(63)具有凹孔(64)和凸块(65)，所述的凸块(65)与凹孔(64)相配适，且其中一个连接块(63)上的凸块(65)能插入到另一个连接块(63)上的凹孔(64)中从而使两个相邻的T形桩(3)能卡接配合。
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