波士顿UMass已开始对其大型实体式校园进行15亿美元的改造，俯瞰多切斯特湾。

建筑经理Gilbane Building Co.正在监督该项目，该项目涉及拆除和拆除大学崩溃的混凝土四边形和老化的科学大楼，用绿色空间，步行道，数百棵树，数百棵树和更传统的校园感觉代替。

新的和改进的校园在2022年首次亮相时，将标志着UMass Boston的原始设计的惊人变化。该大学的校园建于1970年代初期，其中包含一系列笨拙的砖砌建筑，周围是混凝土四边形的建筑，这是批评家因其封闭的堡垒般的感觉而受到批评的设计。

这项工作也只是一系列项目中的最新努力，这些项目已经看到了校园的新外观，三年前仍然大部分是通勤学校建造新利18备用网址其第一个宿舍，还有一个新的科学中心和一个新的学生中心。

Demolition work began last year and has been gathering momentum over the winter and early spring as crews finish taking down the university’s 70s-era science complex.

The jobsite has taken over a significant chunk of the campus: 27 out of a total 120 acres.

“This is a huge, transformational project for the campus,” says Mike Kearns, the school’s associate vice chancellor for facilities management.

计划要求建造一个25英尺，轻轻升起的草坡（被调用四边形），并以蜿蜒的道路缝制，从一个新的300辆车停车场通行。顶部将是校园建筑物之间的一个新的树林广场或大厅。

Kearns说，反过来，斜坡“故意衡量为ADA可以访问”。

Underworld Ties

原始结构受到了腐败丑闻，将两名州参议员送入监狱and resulted in a series of state reforms in how public construction contracts are bid.

The campus’ underground parking garage was constructed with inferior concrete and closed a decade and a half ago as sections of crumbling concrete gave way. The corrosive salt air blowing in from Dorchester Bay also did not help, experts say.

Crews are now working in the old garage space located underneath three major campus buildings to reinforce their foundations, says Kevin Cooke, a senior project executive at Gilbane.

That involves cutting away the damaged concrete columns and beams that have eroded, exposing the rebar and replacing and fixing it.

Structural steel has been brought in to help seismically brace the foundation of the buildings as well, according to Cooke.

建筑物下的旧停车位将不再使用；波士顿UMass在2018年开设了一个新的独立空间车库，以取代地下停车位。

Fulfilling Project

Dealing with defective concrete has not been the only challenge though.

校园坐在一个封闭的垃圾填埋场上，哥伦比亚角数十年来用作垃圾场，然后滨水面积被改建为波士顿唯一的公立大学。

吉尔巴恩（Gilbane）的库克说，在拆除和拆除混凝土四分之一后，建立了波士顿马萨诸塞州马萨诸塞州波士顿的地点的特殊性质，需要进行特殊努力，以防止校园周围的建筑物定居多达两到三英尺。

To prevent settling, two 30-ft-wide concrete tunnels will be built to create a structural void adjacent to the existing buildings. These structures will relieve downward pressure from the soils being placed above and adjacent to the buildings to shape the perimeter of the new Quad.

“It’s all urban fill,” Cooke—who grew up in neighboring Quincy and could see the dump in operation across the bay—said of the site’s composition. “They had a processing plant there for a while. Every one of those buildings has a methane recovery system.”

Underneath the structural voids and the structural soils being placed over them, 100 different pilings will provide additional support for the fill and other materials used to create the plaza on the upper level, with crews now gearing up to do this job.

Another painstaking job involves the waterproofing tie-ins between the new plaza and the campus’ old brick buildings.

库克说，这必须一次进行一个部分，工作人员必须在“逐步的，霍普奇的方法来维持现有结构的完整性”中删除“底部砖的底部课程”。

“Due to the nature of the tie-ins, each location needs to be abated individually in sections,” Cooke said in an email. “This is a slow process, as one could imagine.”

Bunker Busting

To date, demolition contractor Select Demo Services has taken down the old quad and the parking underneath, a pool building and more than 60% of the school’s old science building.

拆除碎片不会浪费。工作人员正在压碎和清除混凝土碎片，计划将数万立方米的旧材料回收为填充物，将用作改装校园的核心。

其中包括30,000克YD在其他项目中留下的受污染的土壤，精心分层以包含它，以及拆除拆除的90,000 YD压碎混凝土。新利18备用网址

凯恩斯说：“我们正在粉碎混凝土和砖块，如果不是全部 - 如果不是全部 - 返回到洞中，那么我们将最多的话放在了洞中。”